-// SMESH SMESH : idl implementation based on 'SMESH' unit's classes
+// Copyright (C) 2007-2011 CEA/DEN, EDF R&D, OPEN CASCADE
//
-// Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
-// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Lesser General Public
-// License as published by the Free Software Foundation; either
-// version 2.1 of the License.
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License.
//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// Lesser General Public License for more details.
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
//
-// You should have received a copy of the GNU Lesser General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
-//
-//
-//
+
+// SMESH SMESH : idl implementation based on 'SMESH' unit's classes
// File : SMESH_MeshEditor.cxx
// Created : Mon Apr 12 16:10:22 2004
// Author : Edward AGAPOV (eap)
-
#include "SMESH_MeshEditor.hxx"
#include "SMDS_FaceOfNodes.hxx"
#include "SMDS_VolumeTool.hxx"
#include "SMDS_EdgePosition.hxx"
-#include "SMDS_PolyhedralVolumeOfNodes.hxx"
#include "SMDS_FacePosition.hxx"
#include "SMDS_SpacePosition.hxx"
-#include "SMDS_QuadraticFaceOfNodes.hxx"
#include "SMDS_MeshGroup.hxx"
+#include "SMDS_LinearEdge.hxx"
+#include "SMDS_Downward.hxx"
+#include "SMDS_SetIterator.hxx"
#include "SMESHDS_Group.hxx"
#include "SMESHDS_Mesh.hxx"
-#include "SMESH_subMesh.hxx"
+#include "SMESH_Algo.hxx"
#include "SMESH_ControlsDef.hxx"
+#include "SMESH_Group.hxx"
#include "SMESH_MesherHelper.hxx"
#include "SMESH_OctreeNode.hxx"
-#include "SMESH_Group.hxx"
+#include "SMESH_subMesh.hxx"
+
+#include <Basics_OCCTVersion.hxx>
#include "utilities.h"
+#include <BRepAdaptor_Surface.hxx>
+#include <BRepBuilderAPI_MakeEdge.hxx>
+#include <BRepClass3d_SolidClassifier.hxx>
#include <BRep_Tool.hxx>
#include <ElCLib.hxx>
#include <Extrema_GenExtPS.hxx>
+#include <Extrema_POnCurv.hxx>
#include <Extrema_POnSurf.hxx>
+#include <GC_MakeSegment.hxx>
#include <Geom2d_Curve.hxx>
+#include <GeomAPI_ExtremaCurveCurve.hxx>
#include <GeomAdaptor_Surface.hxx>
#include <Geom_Curve.hxx>
+#include <Geom_Line.hxx>
#include <Geom_Surface.hxx>
+#include <IntAna_IntConicQuad.hxx>
+#include <IntAna_Quadric.hxx>
+#include <Precision.hxx>
#include <TColStd_ListOfInteger.hxx>
+#include <TopAbs_State.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopTools_ListOfShape.hxx>
+#include <TopTools_SequenceOfShape.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Face.hxx>
#include <gp.hxx>
#include <gp_Vec.hxx>
#include <gp_XY.hxx>
#include <gp_XYZ.hxx>
-#include <math.h>
+
+#include <cmath>
#include <map>
#include <set>
+#include <numeric>
+#include <limits>
+#include <algorithm>
+#include <sstream>
#define cast2Node(elem) static_cast<const SMDS_MeshNode*>( elem )
typedef map<const SMDS_MeshElement*, list<const SMDS_MeshNode*> > TElemOfNodeListMap;
typedef map<const SMDS_MeshElement*, list<const SMDS_MeshElement*> > TElemOfElemListMap;
-//typedef map<const SMDS_MeshNode*, vector<const SMDS_MeshNode*> > TNodeOfNodeVecMap;
-//typedef TNodeOfNodeVecMap::iterator TNodeOfNodeVecMapItr;
-//typedef map<const SMDS_MeshElement*, vector<TNodeOfNodeVecMapItr> > TElemOfVecOfMapNodesMap;
-
-struct TNodeXYZ : public gp_XYZ {
- TNodeXYZ( const SMDS_MeshNode* n ):gp_XYZ( n->X(), n->Y(), n->Z() ) {}
-};
-
-typedef pair< const SMDS_MeshNode*, const SMDS_MeshNode* > NLink;
-
-//=======================================================================
-/*!
- * \brief A sorted pair of nodes
- */
-//=======================================================================
-struct TLink: public NLink
-{
- TLink(const SMDS_MeshNode* n1, const SMDS_MeshNode* n2 ):NLink( n1, n2 )
- { if ( n1->GetID() < n2->GetID() ) std::swap( first, second ); }
- TLink(const NLink& link ):NLink( link )
- { if ( first->GetID() < second->GetID() ) std::swap( first, second ); }
-};
+typedef SMDS_SetIterator< SMDS_pElement, TIDSortedElemSet::const_iterator> TSetIterator;
//=======================================================================
//function : SMESH_MeshEditor
const bool isPoly,
const int ID)
{
+ //MESSAGE("AddElement " <<node.size() << " " << type << " " << isPoly << " " << ID);
SMDS_MeshElement* e = 0;
int nbnode = node.size();
SMESHDS_Mesh* mesh = GetMeshDS();
switch ( type ) {
- case SMDSAbs_Edge:
- if ( nbnode == 2 )
- if ( ID ) e = mesh->AddEdgeWithID(node[0], node[1], ID);
- else e = mesh->AddEdge (node[0], node[1] );
- else if ( nbnode == 3 )
- if ( ID ) e = mesh->AddEdgeWithID(node[0], node[1], node[2], ID);
- else e = mesh->AddEdge (node[0], node[1], node[2] );
- break;
case SMDSAbs_Face:
if ( !isPoly ) {
- if (nbnode == 3)
- if ( ID ) e = mesh->AddFaceWithID(node[0], node[1], node[2], ID);
- else e = mesh->AddFace (node[0], node[1], node[2] );
- else if (nbnode == 4)
- if ( ID ) e = mesh->AddFaceWithID(node[0], node[1], node[2], node[3], ID);
- else e = mesh->AddFace (node[0], node[1], node[2], node[3] );
- else if (nbnode == 6)
- if ( ID ) e = mesh->AddFaceWithID(node[0], node[1], node[2], node[3],
- node[4], node[5], ID);
- else e = mesh->AddFace (node[0], node[1], node[2], node[3],
- node[4], node[5] );
- else if (nbnode == 8)
- if ( ID ) e = mesh->AddFaceWithID(node[0], node[1], node[2], node[3],
- node[4], node[5], node[6], node[7], ID);
- else e = mesh->AddFace (node[0], node[1], node[2], node[3],
- node[4], node[5], node[6], node[7] );
+ if (nbnode == 3) {
+ if ( ID >= 1 ) e = mesh->AddFaceWithID(node[0], node[1], node[2], ID);
+ else e = mesh->AddFace (node[0], node[1], node[2] );
+ }
+ else if (nbnode == 4) {
+ if ( ID >= 1 ) e = mesh->AddFaceWithID(node[0], node[1], node[2], node[3], ID);
+ else e = mesh->AddFace (node[0], node[1], node[2], node[3] );
+ }
+ else if (nbnode == 6) {
+ if ( ID >= 1 ) e = mesh->AddFaceWithID(node[0], node[1], node[2], node[3],
+ node[4], node[5], ID);
+ else e = mesh->AddFace (node[0], node[1], node[2], node[3],
+ node[4], node[5] );
+ }
+ else if (nbnode == 8) {
+ if ( ID >= 1 ) e = mesh->AddFaceWithID(node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7], ID);
+ else e = mesh->AddFace (node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7] );
+ }
+ else if (nbnode == 9) {
+ if ( ID >= 1 ) e = mesh->AddFaceWithID(node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7], node[8], ID);
+ else e = mesh->AddFace (node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7], node[8] );
+ }
} else {
- if ( ID ) e = mesh->AddPolygonalFaceWithID(node, ID);
- else e = mesh->AddPolygonalFace (node );
+ if ( ID >= 1 ) e = mesh->AddPolygonalFaceWithID(node, ID);
+ else e = mesh->AddPolygonalFace (node );
}
break;
+
case SMDSAbs_Volume:
if ( !isPoly ) {
- if (nbnode == 4)
- if ( ID ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3], ID);
- else e = mesh->AddVolume (node[0], node[1], node[2], node[3] );
- else if (nbnode == 5)
- if ( ID ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
- node[4], ID);
- else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
- node[4] );
- else if (nbnode == 6)
- if ( ID ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
- node[4], node[5], ID);
- else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
- node[4], node[5] );
- else if (nbnode == 8)
- if ( ID ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
- node[4], node[5], node[6], node[7], ID);
- else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
- node[4], node[5], node[6], node[7] );
- else if (nbnode == 10)
- if ( ID ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
- node[4], node[5], node[6], node[7],
- node[8], node[9], ID);
- else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
- node[4], node[5], node[6], node[7],
- node[8], node[9] );
- else if (nbnode == 13)
- if ( ID ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
- node[4], node[5], node[6], node[7],
- node[8], node[9], node[10],node[11],
- node[12],ID);
- else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
- node[4], node[5], node[6], node[7],
- node[8], node[9], node[10],node[11],
- node[12] );
- else if (nbnode == 15)
- if ( ID ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
- node[4], node[5], node[6], node[7],
- node[8], node[9], node[10],node[11],
- node[12],node[13],node[14],ID);
- else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
- node[4], node[5], node[6], node[7],
- node[8], node[9], node[10],node[11],
- node[12],node[13],node[14] );
- else if (nbnode == 20)
- if ( ID ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
- node[4], node[5], node[6], node[7],
- node[8], node[9], node[10],node[11],
- node[12],node[13],node[14],node[15],
- node[16],node[17],node[18],node[19],ID);
- else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
- node[4], node[5], node[6], node[7],
- node[8], node[9], node[10],node[11],
- node[12],node[13],node[14],node[15],
- node[16],node[17],node[18],node[19] );
+ if (nbnode == 4) {
+ if ( ID >= 1 ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3], ID);
+ else e = mesh->AddVolume (node[0], node[1], node[2], node[3] );
+ }
+ else if (nbnode == 5) {
+ if ( ID >= 1 ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
+ node[4], ID);
+ else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
+ node[4] );
+ }
+ else if (nbnode == 6) {
+ if ( ID >= 1 ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
+ node[4], node[5], ID);
+ else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
+ node[4], node[5] );
+ }
+ else if (nbnode == 8) {
+ if ( ID >= 1 ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7], ID);
+ else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7] );
+ }
+ else if (nbnode == 10) {
+ if ( ID >= 1 ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7],
+ node[8], node[9], ID);
+ else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7],
+ node[8], node[9] );
+ }
+ else if (nbnode == 12) {
+ if ( ID >= 1 ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7],
+ node[8], node[9], node[10], node[11], ID);
+ else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7],
+ node[8], node[9], node[10], node[11] );
+ }
+ else if (nbnode == 13) {
+ if ( ID >= 1 ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7],
+ node[8], node[9], node[10],node[11],
+ node[12],ID);
+ else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7],
+ node[8], node[9], node[10],node[11],
+ node[12] );
+ }
+ else if (nbnode == 15) {
+ if ( ID >= 1 ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7],
+ node[8], node[9], node[10],node[11],
+ node[12],node[13],node[14],ID);
+ else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7],
+ node[8], node[9], node[10],node[11],
+ node[12],node[13],node[14] );
+ }
+ else if (nbnode == 20) {
+ if ( ID >= 1 ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7],
+ node[8], node[9], node[10],node[11],
+ node[12],node[13],node[14],node[15],
+ node[16],node[17],node[18],node[19],ID);
+ else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7],
+ node[8], node[9], node[10],node[11],
+ node[12],node[13],node[14],node[15],
+ node[16],node[17],node[18],node[19] );
+ }
+ else if (nbnode == 27) {
+ if ( ID >= 1 ) e = mesh->AddVolumeWithID(node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7],
+ node[8], node[9], node[10],node[11],
+ node[12],node[13],node[14],node[15],
+ node[16],node[17],node[18],node[19],
+ node[20],node[21],node[22],node[23],
+ node[24],node[25],node[26], ID);
+ else e = mesh->AddVolume (node[0], node[1], node[2], node[3],
+ node[4], node[5], node[6], node[7],
+ node[8], node[9], node[10],node[11],
+ node[12],node[13],node[14],node[15],
+ node[16],node[17],node[18],node[19],
+ node[20],node[21],node[22],node[23],
+ node[24],node[25],node[26] );
+ }
+ }
+ break;
+
+ case SMDSAbs_Edge:
+ if ( nbnode == 2 ) {
+ if ( ID >= 1 ) e = mesh->AddEdgeWithID(node[0], node[1], ID);
+ else e = mesh->AddEdge (node[0], node[1] );
+ }
+ else if ( nbnode == 3 ) {
+ if ( ID >= 1 ) e = mesh->AddEdgeWithID(node[0], node[1], node[2], ID);
+ else e = mesh->AddEdge (node[0], node[1], node[2] );
+ }
+ break;
+
+ case SMDSAbs_0DElement:
+ if ( nbnode == 1 ) {
+ if ( ID >= 1 ) e = mesh->Add0DElementWithID(node[0], ID);
+ else e = mesh->Add0DElement (node[0] );
}
+ break;
+
+ case SMDSAbs_Node:
+ if ( ID >= 1 ) e = mesh->AddNodeWithID(node[0]->X(), node[0]->Y(), node[0]->Z(), ID);
+ else e = mesh->AddNode (node[0]->X(), node[0]->Y(), node[0]->Z());
+ break;
+
+ default:;
}
+ if ( e ) myLastCreatedElems.Append( e );
return e;
}
// Modify a compute state of sub-meshes which become empty
//=======================================================================
-bool SMESH_MeshEditor::Remove (const list< int >& theIDs,
- const bool isNodes )
+int SMESH_MeshEditor::Remove (const list< int >& theIDs,
+ const bool isNodes )
{
myLastCreatedElems.Clear();
myLastCreatedNodes.Clear();
SMESHDS_Mesh* aMesh = GetMeshDS();
set< SMESH_subMesh *> smmap;
+ int removed = 0;
list<int>::const_iterator it = theIDs.begin();
for ( ; it != theIDs.end(); it++ ) {
const SMDS_MeshElement * elem;
if ( isNodes ) {
const SMDS_MeshNode* node = cast2Node( elem );
if ( node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX )
- if ( int aShapeID = node->GetPosition()->GetShapeId() )
+ if ( int aShapeID = node->getshapeId() )
if ( SMESH_subMesh * sm = GetMesh()->GetSubMeshContaining( aShapeID ) )
smmap.insert( sm );
}
// Find sub-meshes to notify about modification
-// SMDS_ElemIteratorPtr nodeIt = elem->nodesIterator();
-// while ( nodeIt->more() ) {
-// const SMDS_MeshNode* node = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
-// const SMDS_PositionPtr& aPosition = node->GetPosition();
-// if ( aPosition.get() ) {
-// if ( int aShapeID = aPosition->GetShapeId() ) {
-// if ( SMESH_subMesh * sm = GetMesh()->GetSubMeshContaining( aShapeID ) )
-// smmap.insert( sm );
-// }
-// }
-// }
+ // SMDS_ElemIteratorPtr nodeIt = elem->nodesIterator();
+ // while ( nodeIt->more() ) {
+ // const SMDS_MeshNode* node = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
+ // const SMDS_PositionPtr& aPosition = node->GetPosition();
+ // if ( aPosition.get() ) {
+ // if ( int aShapeID = aPosition->GetShapeId() ) {
+ // if ( SMESH_subMesh * sm = GetMesh()->GetSubMeshContaining( aShapeID ) )
+ // smmap.insert( sm );
+ // }
+ // }
+ // }
// Do remove
if ( isNodes )
aMesh->RemoveNode( static_cast< const SMDS_MeshNode* >( elem ));
else
aMesh->RemoveElement( elem );
+ removed++;
}
// Notify sub-meshes about modification
(*smIt)->ComputeStateEngine( SMESH_subMesh::MESH_ENTITY_REMOVED );
}
-// // Check if the whole mesh becomes empty
-// if ( SMESH_subMesh * sm = GetMesh()->GetSubMeshContaining( 1 ) )
-// sm->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
+ // // Check if the whole mesh becomes empty
+ // if ( SMESH_subMesh * sm = GetMesh()->GetSubMeshContaining( 1 ) )
+ // sm->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
- return true;
+ return removed;
}
//=======================================================================
if ( aMesh->ShapeToMesh().IsNull() )
return 0;
+ int aShapeID = theElem->getshapeId();
+ if ( aShapeID < 1 )
+ return 0;
+
+ if ( SMESHDS_SubMesh * sm = aMesh->MeshElements( aShapeID ))
+ if ( sm->Contains( theElem ))
+ return aShapeID;
+
if ( theElem->GetType() == SMDSAbs_Node ) {
- const SMDS_PositionPtr& aPosition =
- static_cast<const SMDS_MeshNode*>( theElem )->GetPosition();
- if ( aPosition.get() )
- return aPosition->GetShapeId();
- else
- return 0;
+ MESSAGE( ":( Error: invalid myShapeId of node " << theElem->GetID() );
+ }
+ else {
+ MESSAGE( ":( Error: invalid myShapeId of element " << theElem->GetID() );
}
- TopoDS_Shape aShape; // the shape a node is on
- SMDS_ElemIteratorPtr nodeIt = theElem->nodesIterator();
- while ( nodeIt->more() ) {
- const SMDS_MeshNode* node = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
- const SMDS_PositionPtr& aPosition = node->GetPosition();
- if ( aPosition.get() ) {
- int aShapeID = aPosition->GetShapeId();
- SMESHDS_SubMesh * sm = aMesh->MeshElements( aShapeID );
- if ( sm ) {
- if ( sm->Contains( theElem ))
- return aShapeID;
- if ( aShape.IsNull() )
- aShape = aMesh->IndexToShape( aShapeID );
- }
- else {
- //MESSAGE ( "::FindShape() No SubShape for aShapeID " << aShapeID );
+ TopoDS_Shape aShape; // the shape a node of theElem is on
+ if ( theElem->GetType() != SMDSAbs_Node )
+ {
+ SMDS_ElemIteratorPtr nodeIt = theElem->nodesIterator();
+ while ( nodeIt->more() ) {
+ const SMDS_MeshNode* node = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
+ if ((aShapeID = node->getshapeId()) > 0) {
+ if ( SMESHDS_SubMesh * sm = aMesh->MeshElements( aShapeID ) ) {
+ if ( sm->Contains( theElem ))
+ return aShapeID;
+ if ( aShape.IsNull() )
+ aShape = aMesh->IndexToShape( aShapeID );
+ }
}
}
}
// None of nodes is on a proper shape,
// find the shape among ancestors of aShape on which a node is
- if ( aShape.IsNull() ) {
- //MESSAGE ("::FindShape() - NONE node is on shape")
- return 0;
+ if ( !aShape.IsNull() ) {
+ TopTools_ListIteratorOfListOfShape ancIt( GetMesh()->GetAncestors( aShape ));
+ for ( ; ancIt.More(); ancIt.Next() ) {
+ SMESHDS_SubMesh * sm = aMesh->MeshElements( ancIt.Value() );
+ if ( sm && sm->Contains( theElem ))
+ return aMesh->ShapeToIndex( ancIt.Value() );
+ }
}
- TopTools_ListIteratorOfListOfShape ancIt( GetMesh()->GetAncestors( aShape ));
- for ( ; ancIt.More(); ancIt.Next() ) {
- SMESHDS_SubMesh * sm = aMesh->MeshElements( ancIt.Value() );
- if ( sm && sm->Contains( theElem ))
- return aMesh->ShapeToIndex( ancIt.Value() );
+ else
+ {
+ const map<int,SMESHDS_SubMesh*>& id2sm = GetMeshDS()->SubMeshes();
+ map<int,SMESHDS_SubMesh*>::const_iterator id_sm = id2sm.begin();
+ for ( ; id_sm != id2sm.end(); ++id_sm )
+ if ( id_sm->second->Contains( theElem ))
+ return id_sm->first;
}
//MESSAGE ("::FindShape() - SHAPE NOT FOUND")
aNodes[5] = nd2;
}
+//=======================================================================
+//function : edgeConnectivity
+//purpose : auxilary
+// return number of the edges connected with the theNode.
+// if theEdges has connections with the other type of the
+// elements, return -1
+//=======================================================================
+static int nbEdgeConnectivity(const SMDS_MeshNode* theNode)
+{
+ SMDS_ElemIteratorPtr elemIt = theNode->GetInverseElementIterator();
+ int nb=0;
+ while(elemIt->more()) {
+ elemIt->next();
+ nb++;
+ }
+ return nb;
+}
+
+
//=======================================================================
//function : GetNodesFromTwoTria
//purpose : auxilary
bool SMESH_MeshEditor::InverseDiag (const SMDS_MeshElement * theTria1,
const SMDS_MeshElement * theTria2 )
{
+ MESSAGE("InverseDiag");
myLastCreatedElems.Clear();
myLastCreatedNodes.Clear();
if (!theTria1 || !theTria2)
return false;
- const SMDS_FaceOfNodes* F1 = dynamic_cast<const SMDS_FaceOfNodes*>( theTria1 );
- const SMDS_FaceOfNodes* F2 = dynamic_cast<const SMDS_FaceOfNodes*>( theTria2 );
- if (F1 && F2) {
+ const SMDS_VtkFace* F1 = dynamic_cast<const SMDS_VtkFace*>( theTria1 );
+ if (!F1) return false;
+ const SMDS_VtkFace* F2 = dynamic_cast<const SMDS_VtkFace*>( theTria2 );
+ if (!F2) return false;
+ if ((theTria1->GetEntityType() == SMDSEntity_Triangle) &&
+ (theTria2->GetEntityType() == SMDSEntity_Triangle)) {
// 1 +--+ A theTria1: ( 1 A B ) A->2 ( 1 2 B ) 1 +--+ A
// | /| theTria2: ( B A 2 ) B->1 ( 1 A 2 ) |\ |
// find indices of 1,2 and of A,B in theTria1
int iA = 0, iB = 0, i1 = 0, i2 = 0;
for ( i = 0; i < 6; i++ ) {
- if ( sameInd [ i ] == 0 )
+ if ( sameInd [ i ] == 0 ) {
if ( i < 3 ) i1 = i;
else i2 = i;
- else if (i < 3)
+ }
+ else if (i < 3) {
if ( iA ) iB = i;
else iA = i;
+ }
}
// nodes 1 and 2 should not be the same
if ( aNodes[ i1 ] == aNodes[ i2 ] )
// theTria2: B->1
aNodes[ sameInd[ iB ]] = aNodes[ i1 ];
- //MESSAGE( theTria1 << theTria2 );
-
GetMeshDS()->ChangeElementNodes( theTria1, aNodes, 3 );
GetMeshDS()->ChangeElementNodes( theTria2, &aNodes[ 3 ], 3 );
- //MESSAGE( theTria1 << theTria2 );
-
return true;
} // end if(F1 && F2)
// check case of quadratic faces
- const SMDS_QuadraticFaceOfNodes* QF1 =
- dynamic_cast<const SMDS_QuadraticFaceOfNodes*> (theTria1);
- if(!QF1) return false;
- const SMDS_QuadraticFaceOfNodes* QF2 =
- dynamic_cast<const SMDS_QuadraticFaceOfNodes*> (theTria2);
- if(!QF2) return false;
+ if (theTria1->GetEntityType() != SMDSEntity_Quad_Triangle)
+ return false;
+ if (theTria2->GetEntityType() != SMDSEntity_Quad_Triangle)
+ return false;
// 5
// 1 +--+--+ 2 theTria1: (1 2 4 5 9 7) or (2 4 1 9 7 5) or (4 1 2 7 5 9)
it = theNode2->GetInverseElementIterator(SMDSAbs_Face);
while (it->more()) {
const SMDS_MeshElement* elem = it->next();
- if ( emap.find( elem ) != emap.end() )
+ if ( emap.find( elem ) != emap.end() ) {
if ( theTria1 ) {
// theTria1 must be element with minimum ID
if( theTria1->GetID() < elem->GetID() ) {
else {
theTria1 = elem;
}
+ }
}
return ( theTria1 && theTria2 );
}
if ( !findTriangles( theNode1, theNode2, tr1, tr2 ))
return false;
- const SMDS_FaceOfNodes* F1 = dynamic_cast<const SMDS_FaceOfNodes*>( tr1 );
- //if (!F1) return false;
- const SMDS_FaceOfNodes* F2 = dynamic_cast<const SMDS_FaceOfNodes*>( tr2 );
- //if (!F2) return false;
- if (F1 && F2) {
+ const SMDS_VtkFace* F1 = dynamic_cast<const SMDS_VtkFace*>( tr1 );
+ if (!F1) return false;
+ const SMDS_VtkFace* F2 = dynamic_cast<const SMDS_VtkFace*>( tr2 );
+ if (!F2) return false;
+ if ((tr1->GetEntityType() == SMDSEntity_Triangle) &&
+ (tr2->GetEntityType() == SMDSEntity_Triangle)) {
// 1 +--+ A tr1: ( 1 A B ) A->2 ( 1 2 B ) 1 +--+ A
// | /| tr2: ( B A 2 ) B->1 ( 1 A 2 ) |\ |
// tr2: B->1
aNodes2[ iB2 ] = aNodes1[ i1 ];
- //MESSAGE( tr1 << tr2 );
-
GetMeshDS()->ChangeElementNodes( tr1, aNodes1, 3 );
GetMeshDS()->ChangeElementNodes( tr2, aNodes2, 3 );
- //MESSAGE( tr1 << tr2 );
-
return true;
}
// check case of quadratic faces
- const SMDS_QuadraticFaceOfNodes* QF1 =
- dynamic_cast<const SMDS_QuadraticFaceOfNodes*> (tr1);
- if(!QF1) return false;
- const SMDS_QuadraticFaceOfNodes* QF2 =
- dynamic_cast<const SMDS_QuadraticFaceOfNodes*> (tr2);
- if(!QF2) return false;
return InverseDiag(tr1,tr2);
}
if ( !findTriangles( theNode1, theNode2, tr1, tr2 ))
return false;
- const SMDS_FaceOfNodes* F1 = dynamic_cast<const SMDS_FaceOfNodes*>( tr1 );
- //if (!F1) return false;
- const SMDS_FaceOfNodes* F2 = dynamic_cast<const SMDS_FaceOfNodes*>( tr2 );
- //if (!F2) return false;
- if (F1 && F2) {
+ const SMDS_VtkFace* F1 = dynamic_cast<const SMDS_VtkFace*>( tr1 );
+ if (!F1) return false;
+ const SMDS_VtkFace* F2 = dynamic_cast<const SMDS_VtkFace*>( tr2 );
+ if (!F2) return false;
+ SMESHDS_Mesh * aMesh = GetMeshDS();
+
+ if ((tr1->GetEntityType() == SMDSEntity_Triangle) &&
+ (tr2->GetEntityType() == SMDSEntity_Triangle)) {
const SMDS_MeshNode* aNodes [ 4 ];
if ( ! getQuadrangleNodes( aNodes, theNode1, theNode2, tr1, tr2 ))
return false;
- //MESSAGE( endl << tr1 << tr2 );
-
- GetMeshDS()->ChangeElementNodes( tr1, aNodes, 4 );
- myLastCreatedElems.Append(tr1);
- GetMeshDS()->RemoveElement( tr2 );
-
- //MESSAGE( endl << tr1 );
+ const SMDS_MeshElement* newElem = 0;
+ newElem = aMesh->AddFace( aNodes[0], aNodes[1], aNodes[2], aNodes[3] );
+ myLastCreatedElems.Append(newElem);
+ AddToSameGroups( newElem, tr1, aMesh );
+ int aShapeId = tr1->getshapeId();
+ if ( aShapeId )
+ {
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ }
+ aMesh->RemoveElement( tr1 );
+ aMesh->RemoveElement( tr2 );
return true;
}
// check case of quadratic faces
- const SMDS_QuadraticFaceOfNodes* QF1 =
- dynamic_cast<const SMDS_QuadraticFaceOfNodes*> (tr1);
- if(!QF1) return false;
- const SMDS_QuadraticFaceOfNodes* QF2 =
- dynamic_cast<const SMDS_QuadraticFaceOfNodes*> (tr2);
- if(!QF2) return false;
+ if (tr1->GetEntityType() != SMDSEntity_Quad_Triangle)
+ return false;
+ if (tr2->GetEntityType() != SMDSEntity_Quad_Triangle)
+ return false;
// 5
// 1 +--+--+ 2 tr1: (1 2 4 5 9 7) or (2 4 1 9 7 5) or (4 1 2 7 5 9)
aNodes[6] = N2[3];
aNodes[7] = N1[5];
- GetMeshDS()->ChangeElementNodes( tr1, aNodes, 8 );
- myLastCreatedElems.Append(tr1);
- GetMeshDS()->RemoveElement( tr2 );
+ const SMDS_MeshElement* newElem = 0;
+ newElem = aMesh->AddFace( aNodes[0], aNodes[1], aNodes[2], aNodes[3],
+ aNodes[4], aNodes[5], aNodes[6], aNodes[7]);
+ myLastCreatedElems.Append(newElem);
+ AddToSameGroups( newElem, tr1, aMesh );
+ int aShapeId = tr1->getshapeId();
+ if ( aShapeId )
+ {
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ }
+ aMesh->RemoveElement( tr1 );
+ aMesh->RemoveElement( tr2 );
// remove middle node (9)
GetMeshDS()->RemoveNode( N1[4] );
bool SMESH_MeshEditor::Reorient (const SMDS_MeshElement * theElem)
{
+ MESSAGE("Reorient");
myLastCreatedElems.Clear();
myLastCreatedNodes.Clear();
}
case SMDSAbs_Volume: {
if (theElem->IsPoly()) {
- const SMDS_PolyhedralVolumeOfNodes* aPolyedre =
- static_cast<const SMDS_PolyhedralVolumeOfNodes*>( theElem );
+ // TODO reorient vtk polyhedron
+ MESSAGE("reorient vtk polyhedron ?");
+ const SMDS_VtkVolume* aPolyedre =
+ dynamic_cast<const SMDS_VtkVolume*>( theElem );
if (!aPolyedre) {
MESSAGE("Warning: bad volumic element");
return false;
if ( !vTool.Set( theElem ))
return false;
vTool.Inverse();
+ MESSAGE("ChangeElementNodes reorient: check vTool.Inverse");
return GetMeshDS()->ChangeElementNodes( theElem, vTool.GetNodes(), vTool.NbNodes() );
}
}
const SMDS_MeshElement* elem = *itElem;
if ( !elem || elem->GetType() != SMDSAbs_Face )
continue;
- if ( elem->NbNodes() != ( elem->IsQuadratic() ? 8 : 4 ))
+ if ( elem->NbCornerNodes() != 4 )
continue;
// retrieve element nodes
- const SMDS_MeshNode* aNodes [8];
- SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- int i = 0;
- while ( itN->more() )
- aNodes[ i++ ] = static_cast<const SMDS_MeshNode*>( itN->next() );
+ vector< const SMDS_MeshNode* > aNodes( elem->begin_nodes(), elem->end_nodes() );
// compare two sets of possible triangles
double aBadRate1, aBadRate2; // to what extent a set is bad
aBadRate2 = getBadRate( &tr3, theCrit ) + getBadRate( &tr4, theCrit );
int aShapeId = FindShape( elem );
- const SMDS_MeshElement* newElem = 0;
+ const SMDS_MeshElement* newElem1 = 0;
+ const SMDS_MeshElement* newElem2 = 0;
if( !elem->IsQuadratic() ) {
if ( aBadRate1 <= aBadRate2 ) {
// tr1 + tr2 is better
- aMesh->ChangeElementNodes( elem, aNodes, 3 );
- newElem = aMesh->AddFace( aNodes[2], aNodes[3], aNodes[0] );
+ newElem1 = aMesh->AddFace( aNodes[2], aNodes[3], aNodes[0] );
+ newElem2 = aMesh->AddFace( aNodes[2], aNodes[0], aNodes[1] );
}
else {
// tr3 + tr4 is better
- aMesh->ChangeElementNodes( elem, &aNodes[1], 3 );
- newElem = aMesh->AddFace( aNodes[3], aNodes[0], aNodes[1] );
+ newElem1 = aMesh->AddFace( aNodes[3], aNodes[0], aNodes[1] );
+ newElem2 = aMesh->AddFace( aNodes[3], aNodes[1], aNodes[2] );
}
}
else {
helper.SetSubShape( shape );
}
}
- // get elem nodes
- const SMDS_MeshNode* aNodes [8];
- const SMDS_MeshNode* inFaceNode = 0;
- SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- int i = 0;
- while ( itN->more() ) {
- aNodes[ i++ ] = static_cast<const SMDS_MeshNode*>( itN->next() );
- if ( !inFaceNode && helper.GetNodeUVneedInFaceNode() &&
- aNodes[ i-1 ]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE )
- {
- inFaceNode = aNodes[ i-1 ];
- }
- }
// find middle point for (0,1,2,3)
// and create a node in this point;
- gp_XYZ p( 0,0,0 );
- if ( surface.IsNull() ) {
- for(i=0; i<4; i++)
- p += gp_XYZ(aNodes[i]->X(), aNodes[i]->Y(), aNodes[i]->Z() );
- p /= 4;
+ const SMDS_MeshNode* newN = 0;
+ if ( aNodes.size() == 9 )
+ {
+ // SMDSEntity_BiQuad_Quadrangle
+ newN = aNodes.back();
}
- else {
- TopoDS_Face face = TopoDS::Face( helper.GetSubShape() );
- gp_XY uv( 0,0 );
- for(i=0; i<4; i++)
- uv += helper.GetNodeUV( face, aNodes[i], inFaceNode );
- uv /= 4.;
- p = surface->Value( uv.X(), uv.Y() ).XYZ();
+ else
+ {
+ gp_XYZ p( 0,0,0 );
+ if ( surface.IsNull() )
+ {
+ for ( int i = 0; i < 4; i++ )
+ p += gp_XYZ(aNodes[i]->X(), aNodes[i]->Y(), aNodes[i]->Z() );
+ p /= 4;
+ }
+ else
+ {
+ const SMDS_MeshNode* inFaceNode = 0;
+ if ( helper.GetNodeUVneedInFaceNode() )
+ for ( size_t i = 0; i < aNodes.size() && !inFaceNode; ++i )
+ if ( aNodes[ i ]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE )
+ inFaceNode = aNodes[ i ];
+
+ TopoDS_Face face = TopoDS::Face( helper.GetSubShape() );
+ gp_XY uv( 0,0 );
+ for ( int i = 0; i < 4; i++ )
+ uv += helper.GetNodeUV( face, aNodes[i], inFaceNode );
+ uv /= 4.;
+ p = surface->Value( uv.X(), uv.Y() ).XYZ();
+ }
+ newN = aMesh->AddNode( p.X(), p.Y(), p.Z() );
+ myLastCreatedNodes.Append(newN);
}
- const SMDS_MeshNode* newN = aMesh->AddNode( p.X(), p.Y(), p.Z() );
- myLastCreatedNodes.Append(newN);
-
// create a new element
- const SMDS_MeshNode* N[6];
if ( aBadRate1 <= aBadRate2 ) {
- N[0] = aNodes[0];
- N[1] = aNodes[1];
- N[2] = aNodes[2];
- N[3] = aNodes[4];
- N[4] = aNodes[5];
- N[5] = newN;
- newElem = aMesh->AddFace(aNodes[2], aNodes[3], aNodes[0],
- aNodes[6], aNodes[7], newN );
+ newElem1 = aMesh->AddFace(aNodes[2], aNodes[3], aNodes[0],
+ aNodes[6], aNodes[7], newN );
+ newElem2 = aMesh->AddFace(aNodes[2], aNodes[0], aNodes[1],
+ newN, aNodes[4], aNodes[5] );
}
else {
- N[0] = aNodes[1];
- N[1] = aNodes[2];
- N[2] = aNodes[3];
- N[3] = aNodes[5];
- N[4] = aNodes[6];
- N[5] = newN;
- newElem = aMesh->AddFace(aNodes[3], aNodes[0], aNodes[1],
- aNodes[7], aNodes[4], newN );
+ newElem1 = aMesh->AddFace(aNodes[3], aNodes[0], aNodes[1],
+ aNodes[7], aNodes[4], newN );
+ newElem2 = aMesh->AddFace(aNodes[3], aNodes[1], aNodes[2],
+ newN, aNodes[5], aNodes[6] );
}
- aMesh->ChangeElementNodes( elem, N, 6 );
-
} // quadratic case
// care of a new element
- myLastCreatedElems.Append(newElem);
- AddToSameGroups( newElem, elem, aMesh );
+ myLastCreatedElems.Append(newElem1);
+ myLastCreatedElems.Append(newElem2);
+ AddToSameGroups( newElem1, elem, aMesh );
+ AddToSameGroups( newElem2, elem, aMesh );
// put a new triangle on the same shape
if ( aShapeId )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ {
+ aMesh->SetMeshElementOnShape( newElem1, aShapeId );
+ aMesh->SetMeshElementOnShape( newElem2, aShapeId );
+ }
+ aMesh->RemoveElement( elem );
}
return true;
}
//function : BestSplit
//purpose : Find better diagonal for cutting.
//=======================================================================
+
int SMESH_MeshEditor::BestSplit (const SMDS_MeshElement* theQuad,
SMESH::Controls::NumericalFunctorPtr theCrit)
{
return -1;
}
-//=======================================================================
-//function : AddToSameGroups
-//purpose : add elemToAdd to the groups the elemInGroups belongs to
-//=======================================================================
-
-void SMESH_MeshEditor::AddToSameGroups (const SMDS_MeshElement* elemToAdd,
- const SMDS_MeshElement* elemInGroups,
- SMESHDS_Mesh * aMesh)
+namespace
{
- const set<SMESHDS_GroupBase*>& groups = aMesh->GetGroups();
- set<SMESHDS_GroupBase*>::const_iterator grIt = groups.begin();
- for ( ; grIt != groups.end(); grIt++ ) {
- SMESHDS_Group* group = dynamic_cast<SMESHDS_Group*>( *grIt );
- if ( group && group->Contains( elemInGroups ))
- group->SMDSGroup().Add( elemToAdd );
- }
-}
+ // Methods of splitting volumes into tetra
+ const int theHexTo5_1[5*4+1] =
+ {
+ 0, 1, 2, 5, 0, 4, 5, 7, 0, 2, 3, 7, 2, 5, 6, 7, 0, 5, 2, 7, -1
+ };
+ const int theHexTo5_2[5*4+1] =
+ {
+ 1, 2, 3, 6, 1, 4, 5, 6, 0, 1, 3, 4, 3, 4, 6, 7, 1, 3, 4, 6, -1
+ };
+ const int* theHexTo5[2] = { theHexTo5_1, theHexTo5_2 };
-//=======================================================================
-//function : RemoveElemFromGroups
-//purpose : Remove removeelem to the groups the elemInGroups belongs to
-//=======================================================================
-void SMESH_MeshEditor::RemoveElemFromGroups (const SMDS_MeshElement* removeelem,
- SMESHDS_Mesh * aMesh)
-{
- const set<SMESHDS_GroupBase*>& groups = aMesh->GetGroups();
- if (!groups.empty())
- {
- set<SMESHDS_GroupBase*>::const_iterator GrIt = groups.begin();
- for (; GrIt != groups.end(); GrIt++)
+ const int theHexTo6_1[6*4+1] =
{
- SMESHDS_Group* grp = dynamic_cast<SMESHDS_Group*>(*GrIt);
- if (!grp || grp->IsEmpty()) continue;
- grp->SMDSGroup().Remove(removeelem);
- }
- }
-}
+ 1, 5, 6, 0, 0, 1, 2, 6, 0, 4, 5, 6, 0, 4, 6, 7, 0, 2, 3, 6, 0, 3, 7, 6, -1
+ };
+ const int theHexTo6_2[6*4+1] =
+ {
+ 2, 6, 7, 1, 1, 2, 3, 7, 1, 5, 6, 7, 1, 5, 7, 4, 1, 3, 0, 7, 1, 0, 4, 7, -1
+ };
+ const int theHexTo6_3[6*4+1] =
+ {
+ 3, 7, 4, 2, 2, 3, 0, 4, 2, 6, 7, 4, 2, 6, 4, 5, 2, 0, 1, 4, 2, 1, 5, 4, -1
+ };
+ const int theHexTo6_4[6*4+1] =
+ {
+ 0, 4, 5, 3, 3, 0, 1, 5, 3, 7, 4, 5, 3, 7, 5, 6, 3, 1, 2, 5, 3, 2, 6, 5, -1
+ };
+ const int* theHexTo6[4] = { theHexTo6_1, theHexTo6_2, theHexTo6_3, theHexTo6_4 };
+ const int thePyraTo2_1[2*4+1] =
+ {
+ 0, 1, 2, 4, 0, 2, 3, 4, -1
+ };
+ const int thePyraTo2_2[2*4+1] =
+ {
+ 1, 2, 3, 4, 1, 3, 0, 4, -1
+ };
+ const int* thePyraTo2[2] = { thePyraTo2_1, thePyraTo2_2 };
-//=======================================================================
-//function : QuadToTri
-//purpose : Cut quadrangles into triangles.
-// theCrit is used to select a diagonal to cut
-//=======================================================================
+ const int thePentaTo3_1[3*4+1] =
+ {
+ 0, 1, 2, 3, 1, 3, 4, 2, 2, 3, 4, 5, -1
+ };
+ const int thePentaTo3_2[3*4+1] =
+ {
+ 1, 2, 0, 4, 2, 4, 5, 0, 0, 4, 5, 3, -1
+ };
+ const int thePentaTo3_3[3*4+1] =
+ {
+ 2, 0, 1, 5, 0, 5, 3, 1, 1, 5, 3, 4, -1
+ };
+ const int thePentaTo3_4[3*4+1] =
+ {
+ 0, 1, 2, 3, 1, 3, 4, 5, 2, 3, 1, 5, -1
+ };
+ const int thePentaTo3_5[3*4+1] =
+ {
+ 1, 2, 0, 4, 2, 4, 5, 3, 0, 4, 2, 3, -1
+ };
+ const int thePentaTo3_6[3*4+1] =
+ {
+ 2, 0, 1, 5, 0, 5, 3, 4, 1, 5, 0, 4, -1
+ };
+ const int* thePentaTo3[6] = { thePentaTo3_1, thePentaTo3_2, thePentaTo3_3,
+ thePentaTo3_4, thePentaTo3_5, thePentaTo3_6 };
-bool SMESH_MeshEditor::QuadToTri (TIDSortedElemSet & theElems,
- const bool the13Diag)
-{
- myLastCreatedElems.Clear();
- myLastCreatedNodes.Clear();
+ struct TTriangleFacet //!< stores indices of three nodes of tetra facet
+ {
+ int _n1, _n2, _n3;
+ TTriangleFacet(int n1, int n2, int n3): _n1(n1), _n2(n2), _n3(n3) {}
+ bool contains(int n) const { return ( n == _n1 || n == _n2 || n == _n3 ); }
+ bool hasAdjacentTetra( const SMDS_MeshElement* elem ) const;
+ };
+ struct TSplitMethod
+ {
+ int _nbTetra;
+ const int* _connectivity; //!< foursomes of tetra connectivy finished by -1
+ bool _baryNode; //!< additional node is to be created at cell barycenter
+ bool _ownConn; //!< to delete _connectivity in destructor
+ map<int, const SMDS_MeshNode*> _faceBaryNode; //!< map face index to node at BC of face
+
+ TSplitMethod( int nbTet=0, const int* conn=0, bool addNode=false)
+ : _nbTetra(nbTet), _connectivity(conn), _baryNode(addNode), _ownConn(false) {}
+ ~TSplitMethod() { if ( _ownConn ) delete [] _connectivity; _connectivity = 0; }
+ bool hasFacet( const TTriangleFacet& facet ) const
+ {
+ const int* tetConn = _connectivity;
+ for ( ; tetConn[0] >= 0; tetConn += 4 )
+ if (( facet.contains( tetConn[0] ) +
+ facet.contains( tetConn[1] ) +
+ facet.contains( tetConn[2] ) +
+ facet.contains( tetConn[3] )) == 3 )
+ return true;
+ return false;
+ }
+ };
- MESSAGE( "::QuadToTri()" );
+ //=======================================================================
+ /*!
+ * \brief return TSplitMethod for the given element
+ */
+ //=======================================================================
- SMESHDS_Mesh * aMesh = GetMeshDS();
+ TSplitMethod getSplitMethod( SMDS_VolumeTool& vol, const int theMethodFlags)
+ {
+ const int iQ = vol.Element()->IsQuadratic() ? 2 : 1;
- Handle(Geom_Surface) surface;
- SMESH_MesherHelper helper( *GetMesh() );
+ // at HEXA_TO_24 method, each face of volume is split into triangles each based on
+ // an edge and a face barycenter; tertaherdons are based on triangles and
+ // a volume barycenter
+ const bool is24TetMode = ( theMethodFlags == SMESH_MeshEditor::HEXA_TO_24 );
- TIDSortedElemSet::iterator itElem;
- for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ ) {
- const SMDS_MeshElement* elem = *itElem;
- if ( !elem || elem->GetType() != SMDSAbs_Face )
- continue;
- bool isquad = elem->NbNodes()==4 || elem->NbNodes()==8;
- if(!isquad) continue;
+ // Find out how adjacent volumes are split
- if(elem->NbNodes()==4) {
- // retrieve element nodes
- const SMDS_MeshNode* aNodes [4];
- SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- int i = 0;
- while ( itN->more() )
- aNodes[ i++ ] = static_cast<const SMDS_MeshNode*>( itN->next() );
+ vector < list< TTriangleFacet > > triaSplitsByFace( vol.NbFaces() ); // splits of each side
+ int hasAdjacentSplits = 0, maxTetConnSize = 0;
+ for ( int iF = 0; iF < vol.NbFaces(); ++iF )
+ {
+ int nbNodes = vol.NbFaceNodes( iF ) / iQ;
+ maxTetConnSize += 4 * ( nbNodes - (is24TetMode ? 0 : 2));
+ if ( nbNodes < 4 ) continue;
- int aShapeId = FindShape( elem );
- const SMDS_MeshElement* newElem = 0;
- if ( the13Diag ) {
- aMesh->ChangeElementNodes( elem, aNodes, 3 );
- newElem = aMesh->AddFace( aNodes[2], aNodes[3], aNodes[0] );
+ list< TTriangleFacet >& triaSplits = triaSplitsByFace[ iF ];
+ const int* nInd = vol.GetFaceNodesIndices( iF );
+ if ( nbNodes == 4 )
+ {
+ TTriangleFacet t012( nInd[0*iQ], nInd[1*iQ], nInd[2*iQ] );
+ TTriangleFacet t123( nInd[1*iQ], nInd[2*iQ], nInd[3*iQ] );
+ if ( t012.hasAdjacentTetra( vol.Element() )) triaSplits.push_back( t012 );
+ else if ( t123.hasAdjacentTetra( vol.Element() )) triaSplits.push_back( t123 );
}
- else {
- aMesh->ChangeElementNodes( elem, &aNodes[1], 3 );
- newElem = aMesh->AddFace( aNodes[3], aNodes[0], aNodes[1] );
+ else
+ {
+ int iCom = 0; // common node of triangle faces to split into
+ for ( int iVar = 0; iVar < nbNodes; ++iVar, ++iCom )
+ {
+ TTriangleFacet t012( nInd[ iQ * ( iCom )],
+ nInd[ iQ * ( (iCom+1)%nbNodes )],
+ nInd[ iQ * ( (iCom+2)%nbNodes )]);
+ TTriangleFacet t023( nInd[ iQ * ( iCom )],
+ nInd[ iQ * ( (iCom+2)%nbNodes )],
+ nInd[ iQ * ( (iCom+3)%nbNodes )]);
+ if ( t012.hasAdjacentTetra( vol.Element() ) && t023.hasAdjacentTetra( vol.Element() ))
+ {
+ triaSplits.push_back( t012 );
+ triaSplits.push_back( t023 );
+ break;
+ }
+ }
}
- myLastCreatedElems.Append(newElem);
- // put a new triangle on the same shape and add to the same groups
- if ( aShapeId )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
- AddToSameGroups( newElem, elem, aMesh );
+ if ( !triaSplits.empty() )
+ hasAdjacentSplits = true;
}
- // Quadratic quadrangle
-
- if( elem->NbNodes()==8 && elem->IsQuadratic() ) {
+ // Among variants of split method select one compliant with adjacent volumes
- // get surface elem is on
- int aShapeId = FindShape( elem );
- if ( aShapeId != helper.GetSubShapeID() ) {
- surface.Nullify();
- TopoDS_Shape shape;
- if ( aShapeId > 0 )
- shape = aMesh->IndexToShape( aShapeId );
- if ( !shape.IsNull() && shape.ShapeType() == TopAbs_FACE ) {
- TopoDS_Face face = TopoDS::Face( shape );
- surface = BRep_Tool::Surface( face );
- if ( !surface.IsNull() )
- helper.SetSubShape( shape );
- }
+ TSplitMethod method;
+ if ( !vol.Element()->IsPoly() && !is24TetMode )
+ {
+ int nbVariants = 2, nbTet = 0;
+ const int** connVariants = 0;
+ switch ( vol.Element()->GetEntityType() )
+ {
+ case SMDSEntity_Hexa:
+ case SMDSEntity_Quad_Hexa:
+ case SMDSEntity_TriQuad_Hexa:
+ if ( theMethodFlags == SMESH_MeshEditor::HEXA_TO_5 )
+ connVariants = theHexTo5, nbTet = 5;
+ else
+ connVariants = theHexTo6, nbTet = 6, nbVariants = 4;
+ break;
+ case SMDSEntity_Pyramid:
+ case SMDSEntity_Quad_Pyramid:
+ connVariants = thePyraTo2; nbTet = 2;
+ break;
+ case SMDSEntity_Penta:
+ case SMDSEntity_Quad_Penta:
+ connVariants = thePentaTo3; nbTet = 3; nbVariants = 6;
+ break;
+ default:
+ nbVariants = 0;
}
-
- const SMDS_MeshNode* aNodes [8];
- const SMDS_MeshNode* inFaceNode = 0;
- SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- int i = 0;
- while ( itN->more() ) {
- aNodes[ i++ ] = static_cast<const SMDS_MeshNode*>( itN->next() );
- if ( !inFaceNode && helper.GetNodeUVneedInFaceNode() &&
- aNodes[ i-1 ]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE )
+ for ( int variant = 0; variant < nbVariants && method._nbTetra == 0; ++variant )
+ {
+ // check method compliancy with adjacent tetras,
+ // all found splits must be among facets of tetras described by this method
+ method = TSplitMethod( nbTet, connVariants[variant] );
+ if ( hasAdjacentSplits && method._nbTetra > 0 )
{
- inFaceNode = aNodes[ i-1 ];
+ bool facetCreated = true;
+ for ( int iF = 0; facetCreated && iF < triaSplitsByFace.size(); ++iF )
+ {
+ list< TTriangleFacet >::const_iterator facet = triaSplitsByFace[iF].begin();
+ for ( ; facetCreated && facet != triaSplitsByFace[iF].end(); ++facet )
+ facetCreated = method.hasFacet( *facet );
+ }
+ if ( !facetCreated )
+ method = TSplitMethod(0); // incompatible method
}
}
-
- // find middle point for (0,1,2,3)
- // and create a node in this point;
- gp_XYZ p( 0,0,0 );
- if ( surface.IsNull() ) {
- for(i=0; i<4; i++)
- p += gp_XYZ(aNodes[i]->X(), aNodes[i]->Y(), aNodes[i]->Z() );
- p /= 4;
- }
- else {
- TopoDS_Face geomFace = TopoDS::Face( helper.GetSubShape() );
- gp_XY uv( 0,0 );
- for(i=0; i<4; i++)
- uv += helper.GetNodeUV( geomFace, aNodes[i], inFaceNode );
- uv /= 4.;
- p = surface->Value( uv.X(), uv.Y() ).XYZ();
- }
- const SMDS_MeshNode* newN = aMesh->AddNode( p.X(), p.Y(), p.Z() );
- myLastCreatedNodes.Append(newN);
-
- // create a new element
- const SMDS_MeshElement* newElem = 0;
- const SMDS_MeshNode* N[6];
- if ( the13Diag ) {
- N[0] = aNodes[0];
- N[1] = aNodes[1];
- N[2] = aNodes[2];
- N[3] = aNodes[4];
- N[4] = aNodes[5];
- N[5] = newN;
- newElem = aMesh->AddFace(aNodes[2], aNodes[3], aNodes[0],
- aNodes[6], aNodes[7], newN );
- }
- else {
- N[0] = aNodes[1];
- N[1] = aNodes[2];
- N[2] = aNodes[3];
- N[3] = aNodes[5];
- N[4] = aNodes[6];
- N[5] = newN;
- newElem = aMesh->AddFace(aNodes[3], aNodes[0], aNodes[1],
- aNodes[7], aNodes[4], newN );
- }
- myLastCreatedElems.Append(newElem);
- aMesh->ChangeElementNodes( elem, N, 6 );
- // put a new triangle on the same shape and add to the same groups
- if ( aShapeId )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
- AddToSameGroups( newElem, elem, aMesh );
}
- }
-
- return true;
-}
+ if ( method._nbTetra < 1 )
+ {
+ // No standard method is applicable, use a generic solution:
+ // each facet of a volume is split into triangles and
+ // each of triangles and a volume barycenter form a tetrahedron.
-//=======================================================================
-//function : getAngle
-//purpose :
-//=======================================================================
+ const bool isHex27 = ( vol.Element()->GetEntityType() == SMDSEntity_TriQuad_Hexa );
-double getAngle(const SMDS_MeshElement * tr1,
- const SMDS_MeshElement * tr2,
- const SMDS_MeshNode * n1,
- const SMDS_MeshNode * n2)
-{
- double angle = 2*PI; // bad angle
+ int* connectivity = new int[ maxTetConnSize + 1 ];
+ method._connectivity = connectivity;
+ method._ownConn = true;
+ method._baryNode = !isHex27; // to create central node or not
- // get normals
- SMESH::Controls::TSequenceOfXYZ P1, P2;
- if ( !SMESH::Controls::NumericalFunctor::GetPoints( tr1, P1 ) ||
- !SMESH::Controls::NumericalFunctor::GetPoints( tr2, P2 ))
- return angle;
- gp_Vec N1,N2;
- if(!tr1->IsQuadratic())
- N1 = gp_Vec( P1(2) - P1(1) ) ^ gp_Vec( P1(3) - P1(1) );
- else
- N1 = gp_Vec( P1(3) - P1(1) ) ^ gp_Vec( P1(5) - P1(1) );
- if ( N1.SquareMagnitude() <= gp::Resolution() )
- return angle;
- if(!tr2->IsQuadratic())
- N2 = gp_Vec( P2(2) - P2(1) ) ^ gp_Vec( P2(3) - P2(1) );
- else
- N2 = gp_Vec( P2(3) - P2(1) ) ^ gp_Vec( P2(5) - P2(1) );
- if ( N2.SquareMagnitude() <= gp::Resolution() )
- return angle;
+ int connSize = 0;
+ int baryCenInd = vol.NbNodes() - int( isHex27 );
+ for ( int iF = 0; iF < vol.NbFaces(); ++iF )
+ {
+ const int nbNodes = vol.NbFaceNodes( iF ) / iQ;
+ const int* nInd = vol.GetFaceNodesIndices( iF );
+ // find common node of triangle facets of tetra to create
+ int iCommon = 0; // index in linear numeration
+ const list< TTriangleFacet >& triaSplits = triaSplitsByFace[ iF ];
+ if ( !triaSplits.empty() )
+ {
+ // by found facets
+ const TTriangleFacet* facet = &triaSplits.front();
+ for ( ; iCommon < nbNodes-1 ; ++iCommon )
+ if ( facet->contains( nInd[ iQ * iCommon ]) &&
+ facet->contains( nInd[ iQ * ((iCommon+2)%nbNodes) ]))
+ break;
+ }
+ else if ( nbNodes > 3 && !is24TetMode )
+ {
+ // find the best method of splitting into triangles by aspect ratio
+ SMESH::Controls::NumericalFunctorPtr aspectRatio( new SMESH::Controls::AspectRatio);
+ map< double, int > badness2iCommon;
+ const SMDS_MeshNode** nodes = vol.GetFaceNodes( iF );
+ int nbVariants = ( nbNodes == 4 ? 2 : nbNodes );
+ for ( int iVar = 0; iVar < nbVariants; ++iVar, ++iCommon )
+ {
+ double badness = 0;
+ for ( int iLast = iCommon+2; iLast < iCommon+nbNodes; ++iLast )
+ {
+ SMDS_FaceOfNodes tria ( nodes[ iQ*( iCommon )],
+ nodes[ iQ*((iLast-1)%nbNodes)],
+ nodes[ iQ*((iLast )%nbNodes)]);
+ badness += getBadRate( &tria, aspectRatio );
+ }
+ badness2iCommon.insert( make_pair( badness, iCommon ));
+ }
+ // use iCommon with lowest badness
+ iCommon = badness2iCommon.begin()->second;
+ }
+ if ( iCommon >= nbNodes )
+ iCommon = 0; // something wrong
- // find the first diagonal node n1 in the triangles:
- // take in account a diagonal link orientation
- const SMDS_MeshElement *nFirst[2], *tr[] = { tr1, tr2 };
- for ( int t = 0; t < 2; t++ ) {
- SMDS_ElemIteratorPtr it = tr[ t ]->nodesIterator();
- int i = 0, iDiag = -1;
- while ( it->more()) {
- const SMDS_MeshElement *n = it->next();
- if ( n == n1 || n == n2 )
- if ( iDiag < 0)
- iDiag = i;
- else {
- if ( i - iDiag == 1 )
- nFirst[ t ] = ( n == n1 ? n2 : n1 );
+ // fill connectivity of tetrahedra based on a current face
+ int nbTet = nbNodes - 2;
+ if ( is24TetMode && nbNodes > 3 && triaSplits.empty())
+ {
+ int faceBaryCenInd;
+ if ( isHex27 )
+ {
+ faceBaryCenInd = vol.GetCenterNodeIndex( iF );
+ method._faceBaryNode[ iF ] = vol.GetNodes()[ faceBaryCenInd ];
+ }
else
- nFirst[ t ] = n;
- break;
+ {
+ method._faceBaryNode[ iF ] = 0;
+ faceBaryCenInd = baryCenInd + method._faceBaryNode.size();
+ }
+ nbTet = nbNodes;
+ for ( int i = 0; i < nbTet; ++i )
+ {
+ int i1 = i, i2 = (i+1) % nbNodes;
+ if ( !vol.IsFaceExternal( iF )) swap( i1, i2 );
+ connectivity[ connSize++ ] = nInd[ iQ * i1 ];
+ connectivity[ connSize++ ] = nInd[ iQ * i2 ];
+ connectivity[ connSize++ ] = faceBaryCenInd;
+ connectivity[ connSize++ ] = baryCenInd;
+ }
}
- i++;
- }
- }
- if ( nFirst[ 0 ] == nFirst[ 1 ] )
- N2.Reverse();
+ else
+ {
+ for ( int i = 0; i < nbTet; ++i )
+ {
+ int i1 = (iCommon+1+i) % nbNodes, i2 = (iCommon+2+i) % nbNodes;
+ if ( !vol.IsFaceExternal( iF )) swap( i1, i2 );
+ connectivity[ connSize++ ] = nInd[ iQ * iCommon ];
+ connectivity[ connSize++ ] = nInd[ iQ * i1 ];
+ connectivity[ connSize++ ] = nInd[ iQ * i2 ];
+ connectivity[ connSize++ ] = baryCenInd;
+ }
+ }
+ method._nbTetra += nbTet;
- angle = N1.Angle( N2 );
- //SCRUTE( angle );
- return angle;
-}
+ } // loop on volume faces
-// =================================================
-// class generating a unique ID for a pair of nodes
-// and able to return nodes by that ID
-// =================================================
-class LinkID_Gen {
- public:
+ connectivity[ connSize++ ] = -1;
- LinkID_Gen( const SMESHDS_Mesh* theMesh )
- :myMesh( theMesh ), myMaxID( theMesh->MaxNodeID() + 1)
- {}
+ } // end of generic solution
- long GetLinkID (const SMDS_MeshNode * n1,
- const SMDS_MeshNode * n2) const
- {
- return ( Min(n1->GetID(),n2->GetID()) * myMaxID + Max(n1->GetID(),n2->GetID()));
+ return method;
}
+ //================================================================================
+ /*!
+ * \brief Check if there is a tetraherdon adjacent to the given element via this facet
+ */
+ //================================================================================
- bool GetNodes (const long theLinkID,
- const SMDS_MeshNode* & theNode1,
- const SMDS_MeshNode* & theNode2) const
+ bool TTriangleFacet::hasAdjacentTetra( const SMDS_MeshElement* elem ) const
{
- theNode1 = myMesh->FindNode( theLinkID / myMaxID );
- if ( !theNode1 ) return false;
- theNode2 = myMesh->FindNode( theLinkID % myMaxID );
- if ( !theNode2 ) return false;
- return true;
+ // find the tetrahedron including the three nodes of facet
+ const SMDS_MeshNode* n1 = elem->GetNode(_n1);
+ const SMDS_MeshNode* n2 = elem->GetNode(_n2);
+ const SMDS_MeshNode* n3 = elem->GetNode(_n3);
+ SMDS_ElemIteratorPtr volIt1 = n1->GetInverseElementIterator(SMDSAbs_Volume);
+ while ( volIt1->more() )
+ {
+ const SMDS_MeshElement* v = volIt1->next();
+ SMDSAbs_EntityType type = v->GetEntityType();
+ if ( type != SMDSEntity_Tetra && type != SMDSEntity_Quad_Tetra )
+ continue;
+ if ( type == SMDSEntity_Quad_Tetra && v->GetNodeIndex( n1 ) > 3 )
+ continue; // medium node not allowed
+ const int ind2 = v->GetNodeIndex( n2 );
+ if ( ind2 < 0 || 3 < ind2 )
+ continue;
+ const int ind3 = v->GetNodeIndex( n3 );
+ if ( ind3 < 0 || 3 < ind3 )
+ continue;
+ return true;
+ }
+ return false;
}
- private:
- LinkID_Gen();
- const SMESHDS_Mesh* myMesh;
- long myMaxID;
-};
+ //=======================================================================
+ /*!
+ * \brief A key of a face of volume
+ */
+ //=======================================================================
+ struct TVolumeFaceKey: pair< pair< int, int>, pair< int, int> >
+ {
+ TVolumeFaceKey( SMDS_VolumeTool& vol, int iF )
+ {
+ TIDSortedNodeSet sortedNodes;
+ const int iQ = vol.Element()->IsQuadratic() ? 2 : 1;
+ int nbNodes = vol.NbFaceNodes( iF );
+ const SMDS_MeshNode** fNodes = vol.GetFaceNodes( iF );
+ for ( int i = 0; i < nbNodes; i += iQ )
+ sortedNodes.insert( fNodes[i] );
+ TIDSortedNodeSet::iterator n = sortedNodes.begin();
+ first.first = (*(n++))->GetID();
+ first.second = (*(n++))->GetID();
+ second.first = (*(n++))->GetID();
+ second.second = ( sortedNodes.size() > 3 ) ? (*(n++))->GetID() : 0;
+ }
+ };
+} // namespace
//=======================================================================
-//function : TriToQuad
-//purpose : Fuse neighbour triangles into quadrangles.
-// theCrit is used to select a neighbour to fuse with.
-// theMaxAngle is a max angle between element normals at which
-// fusion is still performed.
+//function : SplitVolumesIntoTetra
+//purpose : Split volume elements into tetrahedra.
//=======================================================================
-bool SMESH_MeshEditor::TriToQuad (TIDSortedElemSet & theElems,
- SMESH::Controls::NumericalFunctorPtr theCrit,
- const double theMaxAngle)
+void SMESH_MeshEditor::SplitVolumesIntoTetra (const TIDSortedElemSet & theElems,
+ const int theMethodFlags)
{
- myLastCreatedElems.Clear();
- myLastCreatedNodes.Clear();
-
- MESSAGE( "::TriToQuad()" );
+ // std-like iterator on coordinates of nodes of mesh element
+ typedef SMDS_StdIterator< SMESH_TNodeXYZ, SMDS_ElemIteratorPtr > NXyzIterator;
+ NXyzIterator xyzEnd;
- if ( !theCrit.get() )
- return false;
+ SMDS_VolumeTool volTool;
+ SMESH_MesherHelper helper( *GetMesh());
- SMESHDS_Mesh * aMesh = GetMeshDS();
+ SMESHDS_SubMesh* subMesh = 0;//GetMeshDS()->MeshElements(1);
+ SMESHDS_SubMesh* fSubMesh = 0;//subMesh;
+
+ SMESH_SequenceOfElemPtr newNodes, newElems;
- // Prepare data for algo: build
- // 1. map of elements with their linkIDs
- // 2. map of linkIDs with their elements
+ // map face of volume to it's baricenrtic node
+ map< TVolumeFaceKey, const SMDS_MeshNode* > volFace2BaryNode;
+ double bc[3];
- map< TLink, list< const SMDS_MeshElement* > > mapLi_listEl;
- map< TLink, list< const SMDS_MeshElement* > >::iterator itLE;
- map< const SMDS_MeshElement*, set< TLink > > mapEl_setLi;
- map< const SMDS_MeshElement*, set< TLink > >::iterator itEL;
+ TIDSortedElemSet::const_iterator elem = theElems.begin();
+ for ( ; elem != theElems.end(); ++elem )
+ {
+ if ( (*elem)->GetType() != SMDSAbs_Volume )
+ continue;
+ SMDSAbs_EntityType geomType = (*elem)->GetEntityType();
+ if ( geomType == SMDSEntity_Tetra || geomType == SMDSEntity_Quad_Tetra )
+ continue;
- TIDSortedElemSet::iterator itElem;
- for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ ) {
- const SMDS_MeshElement* elem = *itElem;
- if(!elem || elem->GetType() != SMDSAbs_Face ) continue;
- bool IsTria = elem->NbNodes()==3 || (elem->NbNodes()==6 && elem->IsQuadratic());
- if(!IsTria) continue;
+ if ( !volTool.Set( *elem, /*ignoreCentralNodes=*/false )) continue; // strange...
- // retrieve element nodes
- const SMDS_MeshNode* aNodes [4];
- SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- int i = 0;
- while ( i<3 )
- aNodes[ i++ ] = cast2Node( itN->next() );
- aNodes[ 3 ] = aNodes[ 0 ];
+ TSplitMethod splitMethod = getSplitMethod( volTool, theMethodFlags );
+ if ( splitMethod._nbTetra < 1 ) continue;
- // fill maps
- for ( i = 0; i < 3; i++ ) {
- TLink link( aNodes[i], aNodes[i+1] );
- // check if elements sharing a link can be fused
- itLE = mapLi_listEl.find( link );
- if ( itLE != mapLi_listEl.end() ) {
- if ((*itLE).second.size() > 1 ) // consider only 2 elems adjacent by a link
- continue;
- const SMDS_MeshElement* elem2 = (*itLE).second.front();
- //if ( FindShape( elem ) != FindShape( elem2 ))
- // continue; // do not fuse triangles laying on different shapes
- if ( getAngle( elem, elem2, aNodes[i], aNodes[i+1] ) > theMaxAngle )
- continue; // avoid making badly shaped quads
- (*itLE).second.push_back( elem );
+ // find submesh to add new tetras to
+ if ( !subMesh || !subMesh->Contains( *elem ))
+ {
+ int shapeID = FindShape( *elem );
+ helper.SetSubShape( shapeID ); // helper will add tetras to the found submesh
+ subMesh = GetMeshDS()->MeshElements( shapeID );
+ }
+ int iQ;
+ if ( (*elem)->IsQuadratic() )
+ {
+ iQ = 2;
+ // add quadratic links to the helper
+ for ( int iF = 0; iF < volTool.NbFaces(); ++iF )
+ {
+ const SMDS_MeshNode** fNodes = volTool.GetFaceNodes( iF );
+ int nbN = volTool.NbFaceNodes( iF ) - bool( volTool.GetCenterNodeIndex(iF) > 0 );
+ for ( int iN = 0; iN < nbN; iN += iQ )
+ helper.AddTLinkNode( fNodes[iN], fNodes[iN+2], fNodes[iN+1] );
}
- else {
- mapLi_listEl[ link ].push_back( elem );
+ helper.SetIsQuadratic( true );
+ }
+ else
+ {
+ iQ = 1;
+ helper.SetIsQuadratic( false );
+ }
+ vector<const SMDS_MeshNode*> nodes( (*elem)->begin_nodes(), (*elem)->end_nodes() );
+ helper.SetElementsOnShape( true );
+ if ( splitMethod._baryNode )
+ {
+ // make a node at barycenter
+ volTool.GetBaryCenter( bc[0], bc[1], bc[2] );
+ SMDS_MeshNode* gcNode = helper.AddNode( bc[0], bc[1], bc[2] );
+ nodes.push_back( gcNode );
+ newNodes.Append( gcNode );
+ }
+ if ( !splitMethod._faceBaryNode.empty() )
+ {
+ // make or find baricentric nodes of faces
+ map<int, const SMDS_MeshNode*>::iterator iF_n = splitMethod._faceBaryNode.begin();
+ for ( ; iF_n != splitMethod._faceBaryNode.end(); ++iF_n )
+ {
+ map< TVolumeFaceKey, const SMDS_MeshNode* >::iterator f_n =
+ volFace2BaryNode.insert
+ ( make_pair( TVolumeFaceKey( volTool,iF_n->first ), iF_n->second )).first;
+ if ( !f_n->second )
+ {
+ volTool.GetFaceBaryCenter( iF_n->first, bc[0], bc[1], bc[2] );
+ newNodes.Append( f_n->second = helper.AddNode( bc[0], bc[1], bc[2] ));
+ }
+ nodes.push_back( iF_n->second = f_n->second );
}
- mapEl_setLi [ elem ].insert( link );
}
- }
- // Clean the maps from the links shared by a sole element, ie
- // links to which only one element is bound in mapLi_listEl
- for ( itLE = mapLi_listEl.begin(); itLE != mapLi_listEl.end(); itLE++ ) {
- int nbElems = (*itLE).second.size();
- if ( nbElems < 2 ) {
- const SMDS_MeshElement* elem = (*itLE).second.front();
- TLink link = (*itLE).first;
- mapEl_setLi[ elem ].erase( link );
- if ( mapEl_setLi[ elem ].empty() )
- mapEl_setLi.erase( elem );
- }
- }
+ // make tetras
+ vector<const SMDS_MeshElement* > tetras( splitMethod._nbTetra ); // splits of a volume
+ const int* tetConn = splitMethod._connectivity;
+ for ( int i = 0; i < splitMethod._nbTetra; ++i, tetConn += 4 )
+ newElems.Append( tetras[ i ] = helper.AddVolume( nodes[ tetConn[0] ],
+ nodes[ tetConn[1] ],
+ nodes[ tetConn[2] ],
+ nodes[ tetConn[3] ]));
- // Algo: fuse triangles into quadrangles
+ ReplaceElemInGroups( *elem, tetras, GetMeshDS() );
- while ( ! mapEl_setLi.empty() ) {
- // Look for the start element:
- // the element having the least nb of shared links
- const SMDS_MeshElement* startElem = 0;
- int minNbLinks = 4;
- for ( itEL = mapEl_setLi.begin(); itEL != mapEl_setLi.end(); itEL++ ) {
- int nbLinks = (*itEL).second.size();
- if ( nbLinks < minNbLinks ) {
- startElem = (*itEL).first;
- minNbLinks = nbLinks;
- if ( minNbLinks == 1 )
- break;
- }
- }
+ // Split faces on sides of the split volume
- // search elements to fuse starting from startElem or links of elements
- // fused earlyer - startLinks
- list< TLink > startLinks;
- while ( startElem || !startLinks.empty() ) {
- while ( !startElem && !startLinks.empty() ) {
- // Get an element to start, by a link
- TLink linkId = startLinks.front();
- startLinks.pop_front();
- itLE = mapLi_listEl.find( linkId );
- if ( itLE != mapLi_listEl.end() ) {
- list< const SMDS_MeshElement* > & listElem = (*itLE).second;
- list< const SMDS_MeshElement* >::iterator itE = listElem.begin();
- for ( ; itE != listElem.end() ; itE++ )
- if ( mapEl_setLi.find( (*itE) ) != mapEl_setLi.end() )
- startElem = (*itE);
- mapLi_listEl.erase( itLE );
- }
- }
+ const SMDS_MeshNode** volNodes = volTool.GetNodes();
+ for ( int iF = 0; iF < volTool.NbFaces(); ++iF )
+ {
+ const int nbNodes = volTool.NbFaceNodes( iF ) / iQ;
+ if ( nbNodes < 4 ) continue;
+
+ // find an existing face
+ vector<const SMDS_MeshNode*> fNodes( volTool.GetFaceNodes( iF ),
+ volTool.GetFaceNodes( iF ) + volTool.NbFaceNodes( iF ));
+ while ( const SMDS_MeshElement* face = GetMeshDS()->FindElement( fNodes, SMDSAbs_Face,
+ /*noMedium=*/false))
+ {
+ // make triangles
+ helper.SetElementsOnShape( false );
+ vector< const SMDS_MeshElement* > triangles;
- if ( startElem ) {
- // Get candidates to be fused
- const SMDS_MeshElement *tr1 = startElem, *tr2 = 0, *tr3 = 0;
- const TLink *link12, *link13;
- startElem = 0;
- ASSERT( mapEl_setLi.find( tr1 ) != mapEl_setLi.end() );
- set< TLink >& setLi = mapEl_setLi[ tr1 ];
- ASSERT( !setLi.empty() );
- set< TLink >::iterator itLi;
- for ( itLi = setLi.begin(); itLi != setLi.end(); itLi++ )
+ // find submesh to add new triangles in
+ if ( !fSubMesh || !fSubMesh->Contains( face ))
{
- const TLink & link = (*itLi);
- itLE = mapLi_listEl.find( link );
- if ( itLE == mapLi_listEl.end() )
- continue;
-
- const SMDS_MeshElement* elem = (*itLE).second.front();
- if ( elem == tr1 )
- elem = (*itLE).second.back();
- mapLi_listEl.erase( itLE );
- if ( mapEl_setLi.find( elem ) == mapEl_setLi.end())
- continue;
- if ( tr2 ) {
- tr3 = elem;
- link13 = &link;
- }
- else {
- tr2 = elem;
- link12 = &link;
- }
-
- // add other links of elem to list of links to re-start from
- set< TLink >& links = mapEl_setLi[ elem ];
- set< TLink >::iterator it;
- for ( it = links.begin(); it != links.end(); it++ ) {
- const TLink& link2 = (*it);
- if ( link2 != link )
- startLinks.push_back( link2 );
- }
- }
-
- // Get nodes of possible quadrangles
- const SMDS_MeshNode *n12 [4], *n13 [4];
- bool Ok12 = false, Ok13 = false;
- const SMDS_MeshNode *linkNode1, *linkNode2;
- if(tr2) {
- linkNode1 = link12->first;
- linkNode2 = link12->second;
- if ( tr2 && getQuadrangleNodes( n12, linkNode1, linkNode2, tr1, tr2 ))
- Ok12 = true;
- }
- if(tr3) {
- linkNode1 = link13->first;
- linkNode2 = link13->second;
- if ( tr3 && getQuadrangleNodes( n13, linkNode1, linkNode2, tr1, tr3 ))
- Ok13 = true;
- }
-
- // Choose a pair to fuse
- if ( Ok12 && Ok13 ) {
- SMDS_FaceOfNodes quad12 ( n12[ 0 ], n12[ 1 ], n12[ 2 ], n12[ 3 ] );
- SMDS_FaceOfNodes quad13 ( n13[ 0 ], n13[ 1 ], n13[ 2 ], n13[ 3 ] );
- double aBadRate12 = getBadRate( &quad12, theCrit );
- double aBadRate13 = getBadRate( &quad13, theCrit );
- if ( aBadRate13 < aBadRate12 )
- Ok12 = false;
- else
- Ok13 = false;
+ int shapeID = FindShape( face );
+ fSubMesh = GetMeshDS()->MeshElements( shapeID );
}
-
- // Make quadrangles
- // and remove fused elems and removed links from the maps
- mapEl_setLi.erase( tr1 );
- if ( Ok12 ) {
- mapEl_setLi.erase( tr2 );
- mapLi_listEl.erase( *link12 );
- if(tr1->NbNodes()==3) {
- if( tr1->GetID() < tr2->GetID() ) {
- aMesh->ChangeElementNodes( tr1, n12, 4 );
- myLastCreatedElems.Append(tr1);
- aMesh->RemoveElement( tr2 );
- }
- else {
- aMesh->ChangeElementNodes( tr2, n12, 4 );
- myLastCreatedElems.Append(tr2);
- aMesh->RemoveElement( tr1);
- }
- }
- else {
- const SMDS_MeshNode* N1 [6];
- const SMDS_MeshNode* N2 [6];
- GetNodesFromTwoTria(tr1,tr2,N1,N2);
- // now we receive following N1 and N2 (using numeration as above image)
- // tria1 : (1 2 4 5 9 7) and tria2 : (3 4 2 8 9 6)
- // i.e. first nodes from both arrays determ new diagonal
- const SMDS_MeshNode* aNodes[8];
- aNodes[0] = N1[0];
- aNodes[1] = N1[1];
- aNodes[2] = N2[0];
- aNodes[3] = N2[1];
- aNodes[4] = N1[3];
- aNodes[5] = N2[5];
- aNodes[6] = N2[3];
- aNodes[7] = N1[5];
- if( tr1->GetID() < tr2->GetID() ) {
- GetMeshDS()->ChangeElementNodes( tr1, aNodes, 8 );
- myLastCreatedElems.Append(tr1);
- GetMeshDS()->RemoveElement( tr2 );
- }
- else {
- GetMeshDS()->ChangeElementNodes( tr2, aNodes, 8 );
- myLastCreatedElems.Append(tr2);
- GetMeshDS()->RemoveElement( tr1 );
- }
- // remove middle node (9)
- GetMeshDS()->RemoveNode( N1[4] );
+ map<int, const SMDS_MeshNode*>::iterator iF_n = splitMethod._faceBaryNode.find(iF);
+ if ( iF_n != splitMethod._faceBaryNode.end() )
+ {
+ for ( int iN = 0; iN < nbNodes*iQ; iN += iQ )
+ {
+ const SMDS_MeshNode* n1 = fNodes[iN];
+ const SMDS_MeshNode *n2 = fNodes[(iN+iQ)%(nbNodes*iQ)];
+ const SMDS_MeshNode *n3 = iF_n->second;
+ if ( !volTool.IsFaceExternal( iF ))
+ swap( n2, n3 );
+ triangles.push_back( helper.AddFace( n1,n2,n3 ));
+
+ if ( fSubMesh && n3->getshapeId() < 1 )
+ fSubMesh->AddNode( n3 );
}
}
- else if ( Ok13 ) {
- mapEl_setLi.erase( tr3 );
- mapLi_listEl.erase( *link13 );
- if(tr1->NbNodes()==3) {
- if( tr1->GetID() < tr2->GetID() ) {
- aMesh->ChangeElementNodes( tr1, n13, 4 );
- myLastCreatedElems.Append(tr1);
- aMesh->RemoveElement( tr3 );
- }
- else {
- aMesh->ChangeElementNodes( tr3, n13, 4 );
- myLastCreatedElems.Append(tr3);
- aMesh->RemoveElement( tr1 );
+ else
+ {
+ // among possible triangles create ones discribed by split method
+ const int* nInd = volTool.GetFaceNodesIndices( iF );
+ int nbVariants = ( nbNodes == 4 ? 2 : nbNodes );
+ int iCom = 0; // common node of triangle faces to split into
+ list< TTriangleFacet > facets;
+ for ( int iVar = 0; iVar < nbVariants; ++iVar, ++iCom )
+ {
+ TTriangleFacet t012( nInd[ iQ * ( iCom )],
+ nInd[ iQ * ( (iCom+1)%nbNodes )],
+ nInd[ iQ * ( (iCom+2)%nbNodes )]);
+ TTriangleFacet t023( nInd[ iQ * ( iCom )],
+ nInd[ iQ * ( (iCom+2)%nbNodes )],
+ nInd[ iQ * ( (iCom+3)%nbNodes )]);
+ if ( splitMethod.hasFacet( t012 ) && splitMethod.hasFacet( t023 ))
+ {
+ facets.push_back( t012 );
+ facets.push_back( t023 );
+ for ( int iLast = iCom+4; iLast < iCom+nbNodes; ++iLast )
+ facets.push_back( TTriangleFacet( nInd[ iQ * ( iCom )],
+ nInd[ iQ * ((iLast-1)%nbNodes )],
+ nInd[ iQ * ((iLast )%nbNodes )]));
+ break;
}
}
- else {
- const SMDS_MeshNode* N1 [6];
- const SMDS_MeshNode* N2 [6];
- GetNodesFromTwoTria(tr1,tr3,N1,N2);
- // now we receive following N1 and N2 (using numeration as above image)
- // tria1 : (1 2 4 5 9 7) and tria2 : (3 4 2 8 9 6)
- // i.e. first nodes from both arrays determ new diagonal
- const SMDS_MeshNode* aNodes[8];
- aNodes[0] = N1[0];
- aNodes[1] = N1[1];
- aNodes[2] = N2[0];
- aNodes[3] = N2[1];
- aNodes[4] = N1[3];
- aNodes[5] = N2[5];
- aNodes[6] = N2[3];
- aNodes[7] = N1[5];
- if( tr1->GetID() < tr2->GetID() ) {
- GetMeshDS()->ChangeElementNodes( tr1, aNodes, 8 );
- myLastCreatedElems.Append(tr1);
- GetMeshDS()->RemoveElement( tr3 );
- }
- else {
- GetMeshDS()->ChangeElementNodes( tr3, aNodes, 8 );
- myLastCreatedElems.Append(tr3);
- GetMeshDS()->RemoveElement( tr1 );
- }
- // remove middle node (9)
- GetMeshDS()->RemoveNode( N1[4] );
+ list< TTriangleFacet >::iterator facet = facets.begin();
+ for ( ; facet != facets.end(); ++facet )
+ {
+ if ( !volTool.IsFaceExternal( iF ))
+ swap( facet->_n2, facet->_n3 );
+ triangles.push_back( helper.AddFace( volNodes[ facet->_n1 ],
+ volNodes[ facet->_n2 ],
+ volNodes[ facet->_n3 ]));
}
}
+ for ( int i = 0; i < triangles.size(); ++i )
+ {
+ if ( !triangles[i] ) continue;
+ if ( fSubMesh )
+ fSubMesh->AddElement( triangles[i]);
+ newElems.Append( triangles[i] );
+ }
+ ReplaceElemInGroups( face, triangles, GetMeshDS() );
+ GetMeshDS()->RemoveFreeElement( face, fSubMesh, /*fromGroups=*/false );
+ }
- // Next element to fuse: the rejected one
- if ( tr3 )
- startElem = Ok12 ? tr3 : tr2;
+ } // loop on volume faces to split them into triangles
- } // if ( startElem )
- } // while ( startElem || !startLinks.empty() )
- } // while ( ! mapEl_setLi.empty() )
+ GetMeshDS()->RemoveFreeElement( *elem, subMesh, /*fromGroups=*/false );
- return true;
+ if ( geomType == SMDSEntity_TriQuad_Hexa )
+ {
+ // remove medium nodes that could become free
+ for ( int i = 20; i < volTool.NbNodes(); ++i )
+ if ( volNodes[i]->NbInverseElements() == 0 )
+ GetMeshDS()->RemoveNode( volNodes[i] );
+ }
+ } // loop on volumes to split
+
+ myLastCreatedNodes = newNodes;
+ myLastCreatedElems = newElems;
}
+//=======================================================================
+//function : AddToSameGroups
+//purpose : add elemToAdd to the groups the elemInGroups belongs to
+//=======================================================================
-/*#define DUMPSO(txt) \
-// cout << txt << endl;
-//=============================================================================
-//
-//
-//
-//=============================================================================
-static void swap( int i1, int i2, int idNodes[], gp_Pnt P[] )
+void SMESH_MeshEditor::AddToSameGroups (const SMDS_MeshElement* elemToAdd,
+ const SMDS_MeshElement* elemInGroups,
+ SMESHDS_Mesh * aMesh)
{
- if ( i1 == i2 )
- return;
- int tmp = idNodes[ i1 ];
- idNodes[ i1 ] = idNodes[ i2 ];
- idNodes[ i2 ] = tmp;
- gp_Pnt Ptmp = P[ i1 ];
- P[ i1 ] = P[ i2 ];
- P[ i2 ] = Ptmp;
- DUMPSO( i1 << "(" << idNodes[ i2 ] << ") <-> " << i2 << "(" << idNodes[ i1 ] << ")");
+ const set<SMESHDS_GroupBase*>& groups = aMesh->GetGroups();
+ if (!groups.empty()) {
+ set<SMESHDS_GroupBase*>::const_iterator grIt = groups.begin();
+ for ( ; grIt != groups.end(); grIt++ ) {
+ SMESHDS_Group* group = dynamic_cast<SMESHDS_Group*>( *grIt );
+ if ( group && group->Contains( elemInGroups ))
+ group->SMDSGroup().Add( elemToAdd );
+ }
+ }
}
+
//=======================================================================
-//function : SortQuadNodes
-//purpose : Set 4 nodes of a quadrangle face in a good order.
-// Swap 1<->2 or 2<->3 nodes and correspondingly return
-// 1 or 2 else 0.
+//function : RemoveElemFromGroups
+//purpose : Remove removeelem to the groups the elemInGroups belongs to
//=======================================================================
-
-int SMESH_MeshEditor::SortQuadNodes (const SMDS_Mesh * theMesh,
- int idNodes[] )
+void SMESH_MeshEditor::RemoveElemFromGroups (const SMDS_MeshElement* removeelem,
+ SMESHDS_Mesh * aMesh)
{
- gp_Pnt P[4];
- int i;
- for ( i = 0; i < 4; i++ ) {
- const SMDS_MeshNode *n = theMesh->FindNode( idNodes[i] );
- if ( !n ) return 0;
- P[ i ].SetCoord( n->X(), n->Y(), n->Z() );
+ const set<SMESHDS_GroupBase*>& groups = aMesh->GetGroups();
+ if (!groups.empty())
+ {
+ set<SMESHDS_GroupBase*>::const_iterator GrIt = groups.begin();
+ for (; GrIt != groups.end(); GrIt++)
+ {
+ SMESHDS_Group* grp = dynamic_cast<SMESHDS_Group*>(*GrIt);
+ if (!grp || grp->IsEmpty()) continue;
+ grp->SMDSGroup().Remove(removeelem);
+ }
}
+}
- gp_Vec V1(P[0], P[1]);
- gp_Vec V2(P[0], P[2]);
- gp_Vec V3(P[0], P[3]);
-
- gp_Vec Cross1 = V1 ^ V2;
- gp_Vec Cross2 = V2 ^ V3;
+//================================================================================
+/*!
+ * \brief Replace elemToRm by elemToAdd in the all groups
+ */
+//================================================================================
- i = 0;
- if (Cross1.Dot(Cross2) < 0)
- {
- Cross1 = V2 ^ V1;
- Cross2 = V1 ^ V3;
+void SMESH_MeshEditor::ReplaceElemInGroups (const SMDS_MeshElement* elemToRm,
+ const SMDS_MeshElement* elemToAdd,
+ SMESHDS_Mesh * aMesh)
+{
+ const set<SMESHDS_GroupBase*>& groups = aMesh->GetGroups();
+ if (!groups.empty()) {
+ set<SMESHDS_GroupBase*>::const_iterator grIt = groups.begin();
+ for ( ; grIt != groups.end(); grIt++ ) {
+ SMESHDS_Group* group = dynamic_cast<SMESHDS_Group*>( *grIt );
+ if ( group && group->SMDSGroup().Remove( elemToRm ) && elemToAdd )
+ group->SMDSGroup().Add( elemToAdd );
+ }
+ }
+}
- if (Cross1.Dot(Cross2) < 0)
- i = 2;
- else
- i = 1;
- swap ( i, i + 1, idNodes, P );
+//================================================================================
+/*!
+ * \brief Replace elemToRm by elemToAdd in the all groups
+ */
+//================================================================================
-// for ( int ii = 0; ii < 4; ii++ ) {
-// const SMDS_MeshNode *n = theMesh->FindNode( idNodes[ii] );
-// DUMPSO( ii << "(" << idNodes[ii] <<") : "<<n->X()<<" "<<n->Y()<<" "<<n->Z());
-// }
+void SMESH_MeshEditor::ReplaceElemInGroups (const SMDS_MeshElement* elemToRm,
+ const vector<const SMDS_MeshElement*>& elemToAdd,
+ SMESHDS_Mesh * aMesh)
+{
+ const set<SMESHDS_GroupBase*>& groups = aMesh->GetGroups();
+ if (!groups.empty())
+ {
+ set<SMESHDS_GroupBase*>::const_iterator grIt = groups.begin();
+ for ( ; grIt != groups.end(); grIt++ ) {
+ SMESHDS_Group* group = dynamic_cast<SMESHDS_Group*>( *grIt );
+ if ( group && group->SMDSGroup().Remove( elemToRm ) )
+ for ( int i = 0; i < elemToAdd.size(); ++i )
+ group->SMDSGroup().Add( elemToAdd[ i ] );
+ }
}
- return i;
}
//=======================================================================
-//function : SortHexaNodes
-//purpose : Set 8 nodes of a hexahedron in a good order.
-// Return success status
+//function : QuadToTri
+//purpose : Cut quadrangles into triangles.
+// theCrit is used to select a diagonal to cut
//=======================================================================
-bool SMESH_MeshEditor::SortHexaNodes (const SMDS_Mesh * theMesh,
- int idNodes[] )
+bool SMESH_MeshEditor::QuadToTri (TIDSortedElemSet & theElems,
+ const bool the13Diag)
{
- gp_Pnt P[8];
- int i;
- DUMPSO( "INPUT: ========================================");
- for ( i = 0; i < 8; i++ ) {
- const SMDS_MeshNode *n = theMesh->FindNode( idNodes[i] );
- if ( !n ) return false;
- P[ i ].SetCoord( n->X(), n->Y(), n->Z() );
- DUMPSO( i << "(" << idNodes[i] <<") : "<<n->X()<<" "<<n->Y()<<" "<<n->Z());
- }
- DUMPSO( "========================================");
-
-
- set<int> faceNodes; // ids of bottom face nodes, to be found
- set<int> checkedId1; // ids of tried 2-nd nodes
- Standard_Real leastDist = DBL_MAX; // dist of the 4-th node from 123 plane
- const Standard_Real tol = 1.e-6; // tolerance to find nodes in plane
- int iMin, iLoop1 = 0;
-
- // Loop to try the 2-nd nodes
+ myLastCreatedElems.Clear();
+ myLastCreatedNodes.Clear();
- while ( leastDist > DBL_MIN && ++iLoop1 < 8 )
- {
- // Find not checked 2-nd node
- for ( i = 1; i < 8; i++ )
- if ( checkedId1.find( idNodes[i] ) == checkedId1.end() ) {
- int id1 = idNodes[i];
- swap ( 1, i, idNodes, P );
- checkedId1.insert ( id1 );
- break;
- }
+ MESSAGE( "::QuadToTri()" );
- // Find the 3-d node so that 1-2-3 triangle to be on a hexa face,
- // ie that all but meybe one (id3 which is on the same face) nodes
- // lay on the same side from the triangle plane.
+ SMESHDS_Mesh * aMesh = GetMeshDS();
- bool manyInPlane = false; // more than 4 nodes lay in plane
- int iLoop2 = 0;
- while ( ++iLoop2 < 6 ) {
+ Handle(Geom_Surface) surface;
+ SMESH_MesherHelper helper( *GetMesh() );
- // get 1-2-3 plane coeffs
- Standard_Real A, B, C, D;
- gp_Vec N = gp_Vec (P[0], P[1]).Crossed( gp_Vec (P[0], P[2]) );
- if ( N.SquareMagnitude() > gp::Resolution() )
- {
- gp_Pln pln ( P[0], N );
- pln.Coefficients( A, B, C, D );
+ TIDSortedElemSet::iterator itElem;
+ for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ ) {
+ const SMDS_MeshElement* elem = *itElem;
+ if ( !elem || elem->GetType() != SMDSAbs_Face )
+ continue;
+ bool isquad = elem->NbNodes()==4 || elem->NbNodes()==8;
+ if(!isquad) continue;
- // find the node (iMin) closest to pln
- Standard_Real dist[ 8 ], minDist = DBL_MAX;
- set<int> idInPln;
- for ( i = 3; i < 8; i++ ) {
- dist[i] = A * P[i].X() + B * P[i].Y() + C * P[i].Z() + D;
- if ( fabs( dist[i] ) < minDist ) {
- minDist = fabs( dist[i] );
- iMin = i;
- }
- if ( fabs( dist[i] ) <= tol )
- idInPln.insert( idNodes[i] );
- }
+ if(elem->NbNodes()==4) {
+ // retrieve element nodes
+ const SMDS_MeshNode* aNodes [4];
+ SMDS_ElemIteratorPtr itN = elem->nodesIterator();
+ int i = 0;
+ while ( itN->more() )
+ aNodes[ i++ ] = static_cast<const SMDS_MeshNode*>( itN->next() );
- // there should not be more than 4 nodes in bottom plane
- if ( idInPln.size() > 1 )
+ int aShapeId = FindShape( elem );
+ const SMDS_MeshElement* newElem1 = 0;
+ const SMDS_MeshElement* newElem2 = 0;
+ if ( the13Diag ) {
+ newElem1 = aMesh->AddFace( aNodes[2], aNodes[0], aNodes[1] );
+ newElem2 = aMesh->AddFace( aNodes[2], aNodes[3], aNodes[0] );
+ }
+ else {
+ newElem1 = aMesh->AddFace( aNodes[3], aNodes[0], aNodes[1] );
+ newElem2 = aMesh->AddFace( aNodes[3], aNodes[1], aNodes[2] );
+ }
+ myLastCreatedElems.Append(newElem1);
+ myLastCreatedElems.Append(newElem2);
+ // put a new triangle on the same shape and add to the same groups
+ if ( aShapeId )
{
- DUMPSO( "### idInPln.size() = " << idInPln.size());
- // idInPlane does not contain the first 3 nodes
- if ( manyInPlane || idInPln.size() == 5)
- return false; // all nodes in one plane
- manyInPlane = true;
+ aMesh->SetMeshElementOnShape( newElem1, aShapeId );
+ aMesh->SetMeshElementOnShape( newElem2, aShapeId );
+ }
+ AddToSameGroups( newElem1, elem, aMesh );
+ AddToSameGroups( newElem2, elem, aMesh );
+ //aMesh->RemoveFreeElement(elem, aMesh->MeshElements(aShapeId), true);
+ aMesh->RemoveElement( elem );
+ }
- // set the 1-st node to be not in plane
- for ( i = 3; i < 8; i++ ) {
- if ( idInPln.find( idNodes[ i ] ) == idInPln.end() ) {
- DUMPSO( "### Reset 0-th node");
- swap( 0, i, idNodes, P );
- break;
- }
- }
+ // Quadratic quadrangle
- // reset to re-check second nodes
- leastDist = DBL_MAX;
- faceNodes.clear();
- checkedId1.clear();
- iLoop1 = 0;
- break; // from iLoop2;
- }
+ if( elem->NbNodes()==8 && elem->IsQuadratic() ) {
- // check that the other 4 nodes are on the same side
- bool sameSide = true;
- bool isNeg = dist[ iMin == 3 ? 4 : 3 ] <= 0.;
- for ( i = 3; sameSide && i < 8; i++ ) {
- if ( i != iMin )
- sameSide = ( isNeg == dist[i] <= 0.);
+ // get surface elem is on
+ int aShapeId = FindShape( elem );
+ if ( aShapeId != helper.GetSubShapeID() ) {
+ surface.Nullify();
+ TopoDS_Shape shape;
+ if ( aShapeId > 0 )
+ shape = aMesh->IndexToShape( aShapeId );
+ if ( !shape.IsNull() && shape.ShapeType() == TopAbs_FACE ) {
+ TopoDS_Face face = TopoDS::Face( shape );
+ surface = BRep_Tool::Surface( face );
+ if ( !surface.IsNull() )
+ helper.SetSubShape( shape );
}
+ }
- // keep best solution
- if ( sameSide && minDist < leastDist ) {
- leastDist = minDist;
- faceNodes.clear();
- faceNodes.insert( idNodes[ 1 ] );
- faceNodes.insert( idNodes[ 2 ] );
- faceNodes.insert( idNodes[ iMin ] );
- DUMPSO( "loop " << iLoop2 << " id2 " << idNodes[ 1 ] << " id3 " << idNodes[ 2 ]
- << " leastDist = " << leastDist);
- if ( leastDist <= DBL_MIN )
- break;
+ const SMDS_MeshNode* aNodes [8];
+ const SMDS_MeshNode* inFaceNode = 0;
+ SMDS_ElemIteratorPtr itN = elem->nodesIterator();
+ int i = 0;
+ while ( itN->more() ) {
+ aNodes[ i++ ] = static_cast<const SMDS_MeshNode*>( itN->next() );
+ if ( !inFaceNode && helper.GetNodeUVneedInFaceNode() &&
+ aNodes[ i-1 ]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE )
+ {
+ inFaceNode = aNodes[ i-1 ];
}
}
- // set next 3-d node to check
- int iNext = 2 + iLoop2;
- if ( iNext < 8 ) {
- DUMPSO( "Try 2-nd");
- swap ( 2, iNext, idNodes, P );
+ // find middle point for (0,1,2,3)
+ // and create a node in this point;
+ gp_XYZ p( 0,0,0 );
+ if ( surface.IsNull() ) {
+ for(i=0; i<4; i++)
+ p += gp_XYZ(aNodes[i]->X(), aNodes[i]->Y(), aNodes[i]->Z() );
+ p /= 4;
}
- } // while ( iLoop2 < 6 )
- } // iLoop1
-
- if ( faceNodes.empty() ) return false;
+ else {
+ TopoDS_Face geomFace = TopoDS::Face( helper.GetSubShape() );
+ gp_XY uv( 0,0 );
+ for(i=0; i<4; i++)
+ uv += helper.GetNodeUV( geomFace, aNodes[i], inFaceNode );
+ uv /= 4.;
+ p = surface->Value( uv.X(), uv.Y() ).XYZ();
+ }
+ const SMDS_MeshNode* newN = aMesh->AddNode( p.X(), p.Y(), p.Z() );
+ myLastCreatedNodes.Append(newN);
- // Put the faceNodes in proper places
- for ( i = 4; i < 8; i++ ) {
- if ( faceNodes.find( idNodes[ i ] ) != faceNodes.end() ) {
- // find a place to put
- int iTo = 1;
- while ( faceNodes.find( idNodes[ iTo ] ) != faceNodes.end() )
- iTo++;
- DUMPSO( "Set faceNodes");
- swap ( iTo, i, idNodes, P );
+ // create a new element
+ const SMDS_MeshElement* newElem1 = 0;
+ const SMDS_MeshElement* newElem2 = 0;
+ if ( the13Diag ) {
+ newElem1 = aMesh->AddFace(aNodes[2], aNodes[3], aNodes[0],
+ aNodes[6], aNodes[7], newN );
+ newElem2 = aMesh->AddFace(aNodes[2], aNodes[0], aNodes[1],
+ newN, aNodes[4], aNodes[5] );
+ }
+ else {
+ newElem1 = aMesh->AddFace(aNodes[3], aNodes[0], aNodes[1],
+ aNodes[7], aNodes[4], newN );
+ newElem2 = aMesh->AddFace(aNodes[3], aNodes[1], aNodes[2],
+ newN, aNodes[5], aNodes[6] );
+ }
+ myLastCreatedElems.Append(newElem1);
+ myLastCreatedElems.Append(newElem2);
+ // put a new triangle on the same shape and add to the same groups
+ if ( aShapeId )
+ {
+ aMesh->SetMeshElementOnShape( newElem1, aShapeId );
+ aMesh->SetMeshElementOnShape( newElem2, aShapeId );
+ }
+ AddToSameGroups( newElem1, elem, aMesh );
+ AddToSameGroups( newElem2, elem, aMesh );
+ aMesh->RemoveElement( elem );
}
}
+ return true;
+}
- // Set nodes of the found bottom face in good order
- DUMPSO( " Found bottom face: ");
- i = SortQuadNodes( theMesh, idNodes );
- if ( i ) {
- gp_Pnt Ptmp = P[ i ];
- P[ i ] = P[ i+1 ];
- P[ i+1 ] = Ptmp;
- }
-// else
-// for ( int ii = 0; ii < 4; ii++ ) {
-// const SMDS_MeshNode *n = theMesh->FindNode( idNodes[ii] );
-// DUMPSO( ii << "(" << idNodes[ii] <<") : "<<n->X()<<" "<<n->Y()<<" "<<n->Z());
-// }
-
- // Gravity center of the top and bottom faces
- gp_Pnt aGCb = ( P[0].XYZ() + P[1].XYZ() + P[2].XYZ() + P[3].XYZ() ) / 4.;
- gp_Pnt aGCt = ( P[4].XYZ() + P[5].XYZ() + P[6].XYZ() + P[7].XYZ() ) / 4.;
+//=======================================================================
+//function : getAngle
+//purpose :
+//=======================================================================
- // Get direction from the bottom to the top face
- gp_Vec upDir ( aGCb, aGCt );
- Standard_Real upDirSize = upDir.Magnitude();
- if ( upDirSize <= gp::Resolution() ) return false;
- upDir / upDirSize;
+double getAngle(const SMDS_MeshElement * tr1,
+ const SMDS_MeshElement * tr2,
+ const SMDS_MeshNode * n1,
+ const SMDS_MeshNode * n2)
+{
+ double angle = 2. * M_PI; // bad angle
- // Assure that the bottom face normal points up
- gp_Vec Nb = gp_Vec (P[0], P[1]).Crossed( gp_Vec (P[0], P[2]) );
- Nb += gp_Vec (P[0], P[2]).Crossed( gp_Vec (P[0], P[3]) );
- if ( Nb.Dot( upDir ) < 0 ) {
- DUMPSO( "Reverse bottom face");
- swap( 1, 3, idNodes, P );
- }
+ // get normals
+ SMESH::Controls::TSequenceOfXYZ P1, P2;
+ if ( !SMESH::Controls::NumericalFunctor::GetPoints( tr1, P1 ) ||
+ !SMESH::Controls::NumericalFunctor::GetPoints( tr2, P2 ))
+ return angle;
+ gp_Vec N1,N2;
+ if(!tr1->IsQuadratic())
+ N1 = gp_Vec( P1(2) - P1(1) ) ^ gp_Vec( P1(3) - P1(1) );
+ else
+ N1 = gp_Vec( P1(3) - P1(1) ) ^ gp_Vec( P1(5) - P1(1) );
+ if ( N1.SquareMagnitude() <= gp::Resolution() )
+ return angle;
+ if(!tr2->IsQuadratic())
+ N2 = gp_Vec( P2(2) - P2(1) ) ^ gp_Vec( P2(3) - P2(1) );
+ else
+ N2 = gp_Vec( P2(3) - P2(1) ) ^ gp_Vec( P2(5) - P2(1) );
+ if ( N2.SquareMagnitude() <= gp::Resolution() )
+ return angle;
- // Find 5-th node - the one closest to the 1-st among the last 4 nodes.
- Standard_Real minDist = DBL_MAX;
- for ( i = 4; i < 8; i++ ) {
- // projection of P[i] to the plane defined by P[0] and upDir
- gp_Pnt Pp = P[i].Translated( upDir * ( upDir.Dot( gp_Vec( P[i], P[0] ))));
- Standard_Real sqDist = P[0].SquareDistance( Pp );
- if ( sqDist < minDist ) {
- minDist = sqDist;
- iMin = i;
- }
- }
- DUMPSO( "Set 4-th");
- swap ( 4, iMin, idNodes, P );
-
- // Set nodes of the top face in good order
- DUMPSO( "Sort top face");
- i = SortQuadNodes( theMesh, &idNodes[4] );
- if ( i ) {
- i += 4;
- gp_Pnt Ptmp = P[ i ];
- P[ i ] = P[ i+1 ];
- P[ i+1 ] = Ptmp;
- }
-
- // Assure that direction of the top face normal is from the bottom face
- gp_Vec Nt = gp_Vec (P[4], P[5]).Crossed( gp_Vec (P[4], P[6]) );
- Nt += gp_Vec (P[4], P[6]).Crossed( gp_Vec (P[4], P[7]) );
- if ( Nt.Dot( upDir ) < 0 ) {
- DUMPSO( "Reverse top face");
- swap( 5, 7, idNodes, P );
- }
-
-// DUMPSO( "OUTPUT: ========================================");
-// for ( i = 0; i < 8; i++ ) {
-// float *p = ugrid->GetPoint(idNodes[i]);
-// DUMPSO( i << "(" << idNodes[i] << ") : " << p[0] << " " << p[1] << " " << p[2]);
-// }
-
- return true;
-}*/
-
-//================================================================================
-/*!
- * \brief Return nodes linked to the given one
- * \param theNode - the node
- * \param linkedNodes - the found nodes
- * \param type - the type of elements to check
- *
- * Medium nodes are ignored
- */
-//================================================================================
-
-void SMESH_MeshEditor::GetLinkedNodes( const SMDS_MeshNode* theNode,
- TIDSortedElemSet & linkedNodes,
- SMDSAbs_ElementType type )
-{
- SMDS_ElemIteratorPtr elemIt = theNode->GetInverseElementIterator(type);
- while ( elemIt->more() )
- {
- const SMDS_MeshElement* elem = elemIt->next();
- SMDS_ElemIteratorPtr nodeIt = elem->nodesIterator();
- if ( elem->GetType() == SMDSAbs_Volume )
- {
- SMDS_VolumeTool vol( elem );
- while ( nodeIt->more() ) {
- const SMDS_MeshNode* n = cast2Node( nodeIt->next() );
- if ( theNode != n && vol.IsLinked( theNode, n ))
- linkedNodes.insert( n );
- }
- }
- else
- {
- for ( int i = 0; nodeIt->more(); ++i ) {
- const SMDS_MeshNode* n = cast2Node( nodeIt->next() );
- if ( n == theNode ) {
- int iBefore = i - 1;
- int iAfter = i + 1;
- if ( elem->IsQuadratic() ) {
- int nb = elem->NbNodes() / 2;
- iAfter = SMESH_MesherHelper::WrapIndex( iAfter, nb );
- iBefore = SMESH_MesherHelper::WrapIndex( iBefore, nb );
- }
- linkedNodes.insert( elem->GetNode( iAfter ));
- linkedNodes.insert( elem->GetNode( iBefore ));
+ // find the first diagonal node n1 in the triangles:
+ // take in account a diagonal link orientation
+ const SMDS_MeshElement *nFirst[2], *tr[] = { tr1, tr2 };
+ for ( int t = 0; t < 2; t++ ) {
+ SMDS_ElemIteratorPtr it = tr[ t ]->nodesIterator();
+ int i = 0, iDiag = -1;
+ while ( it->more()) {
+ const SMDS_MeshElement *n = it->next();
+ if ( n == n1 || n == n2 ) {
+ if ( iDiag < 0)
+ iDiag = i;
+ else {
+ if ( i - iDiag == 1 )
+ nFirst[ t ] = ( n == n1 ? n2 : n1 );
+ else
+ nFirst[ t ] = n;
+ break;
}
}
+ i++;
}
}
-}
-
-//=======================================================================
-//function : laplacianSmooth
-//purpose : pulls theNode toward the center of surrounding nodes directly
-// connected to that node along an element edge
-//=======================================================================
+ if ( nFirst[ 0 ] == nFirst[ 1 ] )
+ N2.Reverse();
-void laplacianSmooth(const SMDS_MeshNode* theNode,
- const Handle(Geom_Surface)& theSurface,
- map< const SMDS_MeshNode*, gp_XY* >& theUVMap)
-{
- // find surrounding nodes
+ angle = N1.Angle( N2 );
+ //SCRUTE( angle );
+ return angle;
+}
- TIDSortedElemSet nodeSet;
- SMESH_MeshEditor::GetLinkedNodes( theNode, nodeSet, SMDSAbs_Face );
+// =================================================
+// class generating a unique ID for a pair of nodes
+// and able to return nodes by that ID
+// =================================================
+class LinkID_Gen {
+public:
- // compute new coodrs
+ LinkID_Gen( const SMESHDS_Mesh* theMesh )
+ :myMesh( theMesh ), myMaxID( theMesh->MaxNodeID() + 1)
+ {}
- double coord[] = { 0., 0., 0. };
- TIDSortedElemSet::iterator nodeSetIt = nodeSet.begin();
- for ( ; nodeSetIt != nodeSet.end(); nodeSetIt++ ) {
- const SMDS_MeshNode* node = cast2Node(*nodeSetIt);
- if ( theSurface.IsNull() ) { // smooth in 3D
- coord[0] += node->X();
- coord[1] += node->Y();
- coord[2] += node->Z();
- }
- else { // smooth in 2D
- ASSERT( theUVMap.find( node ) != theUVMap.end() );
- gp_XY* uv = theUVMap[ node ];
- coord[0] += uv->X();
- coord[1] += uv->Y();
- }
+ long GetLinkID (const SMDS_MeshNode * n1,
+ const SMDS_MeshNode * n2) const
+ {
+ return ( Min(n1->GetID(),n2->GetID()) * myMaxID + Max(n1->GetID(),n2->GetID()));
}
- int nbNodes = nodeSet.size();
- if ( !nbNodes )
- return;
- coord[0] /= nbNodes;
- coord[1] /= nbNodes;
- if ( !theSurface.IsNull() ) {
- ASSERT( theUVMap.find( theNode ) != theUVMap.end() );
- theUVMap[ theNode ]->SetCoord( coord[0], coord[1] );
- gp_Pnt p3d = theSurface->Value( coord[0], coord[1] );
- coord[0] = p3d.X();
- coord[1] = p3d.Y();
- coord[2] = p3d.Z();
+ bool GetNodes (const long theLinkID,
+ const SMDS_MeshNode* & theNode1,
+ const SMDS_MeshNode* & theNode2) const
+ {
+ theNode1 = myMesh->FindNode( theLinkID / myMaxID );
+ if ( !theNode1 ) return false;
+ theNode2 = myMesh->FindNode( theLinkID % myMaxID );
+ if ( !theNode2 ) return false;
+ return true;
}
- else
- coord[2] /= nbNodes;
- // move node
+private:
+ LinkID_Gen();
+ const SMESHDS_Mesh* myMesh;
+ long myMaxID;
+};
- const_cast< SMDS_MeshNode* >( theNode )->setXYZ(coord[0],coord[1],coord[2]);
-}
//=======================================================================
-//function : centroidalSmooth
-//purpose : pulls theNode toward the element-area-weighted centroid of the
-// surrounding elements
+//function : TriToQuad
+//purpose : Fuse neighbour triangles into quadrangles.
+// theCrit is used to select a neighbour to fuse with.
+// theMaxAngle is a max angle between element normals at which
+// fusion is still performed.
//=======================================================================
-void centroidalSmooth(const SMDS_MeshNode* theNode,
- const Handle(Geom_Surface)& theSurface,
- map< const SMDS_MeshNode*, gp_XY* >& theUVMap)
+bool SMESH_MeshEditor::TriToQuad (TIDSortedElemSet & theElems,
+ SMESH::Controls::NumericalFunctorPtr theCrit,
+ const double theMaxAngle)
{
- gp_XYZ aNewXYZ(0.,0.,0.);
- SMESH::Controls::Area anAreaFunc;
- double totalArea = 0.;
- int nbElems = 0;
+ myLastCreatedElems.Clear();
+ myLastCreatedNodes.Clear();
- // compute new XYZ
+ MESSAGE( "::TriToQuad()" );
- SMDS_ElemIteratorPtr elemIt = theNode->GetInverseElementIterator(SMDSAbs_Face);
- while ( elemIt->more() )
- {
- const SMDS_MeshElement* elem = elemIt->next();
- nbElems++;
+ if ( !theCrit.get() )
+ return false;
- gp_XYZ elemCenter(0.,0.,0.);
- SMESH::Controls::TSequenceOfXYZ aNodePoints;
- SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- int nn = elem->NbNodes();
- if(elem->IsQuadratic()) nn = nn/2;
- int i=0;
- //while ( itN->more() ) {
- while ( i<nn ) {
- const SMDS_MeshNode* aNode = static_cast<const SMDS_MeshNode*>( itN->next() );
- i++;
- gp_XYZ aP( aNode->X(), aNode->Y(), aNode->Z() );
- aNodePoints.push_back( aP );
- if ( !theSurface.IsNull() ) { // smooth in 2D
- ASSERT( theUVMap.find( aNode ) != theUVMap.end() );
- gp_XY* uv = theUVMap[ aNode ];
- aP.SetCoord( uv->X(), uv->Y(), 0. );
- }
- elemCenter += aP;
- }
- double elemArea = anAreaFunc.GetValue( aNodePoints );
- totalArea += elemArea;
- elemCenter /= nn;
- aNewXYZ += elemCenter * elemArea;
- }
- aNewXYZ /= totalArea;
- if ( !theSurface.IsNull() ) {
- theUVMap[ theNode ]->SetCoord( aNewXYZ.X(), aNewXYZ.Y() );
- aNewXYZ = theSurface->Value( aNewXYZ.X(), aNewXYZ.Y() ).XYZ();
- }
+ SMESHDS_Mesh * aMesh = GetMeshDS();
- // move node
+ // Prepare data for algo: build
+ // 1. map of elements with their linkIDs
+ // 2. map of linkIDs with their elements
- const_cast< SMDS_MeshNode* >( theNode )->setXYZ(aNewXYZ.X(),aNewXYZ.Y(),aNewXYZ.Z());
-}
+ map< SMESH_TLink, list< const SMDS_MeshElement* > > mapLi_listEl;
+ map< SMESH_TLink, list< const SMDS_MeshElement* > >::iterator itLE;
+ map< const SMDS_MeshElement*, set< SMESH_TLink > > mapEl_setLi;
+ map< const SMDS_MeshElement*, set< SMESH_TLink > >::iterator itEL;
-//=======================================================================
-//function : getClosestUV
-//purpose : return UV of closest projection
-//=======================================================================
+ TIDSortedElemSet::iterator itElem;
+ for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ ) {
+ const SMDS_MeshElement* elem = *itElem;
+ if(!elem || elem->GetType() != SMDSAbs_Face ) continue;
+ bool IsTria = elem->NbNodes()==3 || (elem->NbNodes()==6 && elem->IsQuadratic());
+ if(!IsTria) continue;
-static bool getClosestUV (Extrema_GenExtPS& projector,
- const gp_Pnt& point,
- gp_XY & result)
-{
- projector.Perform( point );
- if ( projector.IsDone() ) {
- double u, v, minVal = DBL_MAX;
- for ( int i = projector.NbExt(); i > 0; i-- )
- if ( projector.Value( i ) < minVal ) {
- minVal = projector.Value( i );
- projector.Point( i ).Parameter( u, v );
- }
- result.SetCoord( u, v );
- return true;
- }
- return false;
-}
+ // retrieve element nodes
+ const SMDS_MeshNode* aNodes [4];
+ SMDS_ElemIteratorPtr itN = elem->nodesIterator();
+ int i = 0;
+ while ( i<3 )
+ aNodes[ i++ ] = cast2Node( itN->next() );
+ aNodes[ 3 ] = aNodes[ 0 ];
-//=======================================================================
-//function : Smooth
-//purpose : Smooth theElements during theNbIterations or until a worst
-// element has aspect ratio <= theTgtAspectRatio.
-// Aspect Ratio varies in range [1.0, inf].
-// If theElements is empty, the whole mesh is smoothed.
-// theFixedNodes contains additionally fixed nodes. Nodes built
-// on edges and boundary nodes are always fixed.
-//=======================================================================
-
-void SMESH_MeshEditor::Smooth (TIDSortedElemSet & theElems,
- set<const SMDS_MeshNode*> & theFixedNodes,
- const SmoothMethod theSmoothMethod,
- const int theNbIterations,
- double theTgtAspectRatio,
- const bool the2D)
-{
- myLastCreatedElems.Clear();
- myLastCreatedNodes.Clear();
-
- MESSAGE((theSmoothMethod==LAPLACIAN ? "LAPLACIAN" : "CENTROIDAL") << "--::Smooth()");
-
- if ( theTgtAspectRatio < 1.0 )
- theTgtAspectRatio = 1.0;
-
- const double disttol = 1.e-16;
-
- SMESH::Controls::AspectRatio aQualityFunc;
-
- SMESHDS_Mesh* aMesh = GetMeshDS();
-
- if ( theElems.empty() ) {
- // add all faces to theElems
- SMDS_FaceIteratorPtr fIt = aMesh->facesIterator();
- while ( fIt->more() ) {
- const SMDS_MeshElement* face = fIt->next();
- theElems.insert( face );
- }
- }
- // get all face ids theElems are on
- set< int > faceIdSet;
- TIDSortedElemSet::iterator itElem;
- if ( the2D )
- for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ ) {
- int fId = FindShape( *itElem );
- // check that corresponding submesh exists and a shape is face
- if (fId &&
- faceIdSet.find( fId ) == faceIdSet.end() &&
- aMesh->MeshElements( fId )) {
- TopoDS_Shape F = aMesh->IndexToShape( fId );
- if ( !F.IsNull() && F.ShapeType() == TopAbs_FACE )
- faceIdSet.insert( fId );
+ // fill maps
+ for ( i = 0; i < 3; i++ ) {
+ SMESH_TLink link( aNodes[i], aNodes[i+1] );
+ // check if elements sharing a link can be fused
+ itLE = mapLi_listEl.find( link );
+ if ( itLE != mapLi_listEl.end() ) {
+ if ((*itLE).second.size() > 1 ) // consider only 2 elems adjacent by a link
+ continue;
+ const SMDS_MeshElement* elem2 = (*itLE).second.front();
+ //if ( FindShape( elem ) != FindShape( elem2 ))
+ // continue; // do not fuse triangles laying on different shapes
+ if ( getAngle( elem, elem2, aNodes[i], aNodes[i+1] ) > theMaxAngle )
+ continue; // avoid making badly shaped quads
+ (*itLE).second.push_back( elem );
}
+ else {
+ mapLi_listEl[ link ].push_back( elem );
+ }
+ mapEl_setLi [ elem ].insert( link );
}
- faceIdSet.insert( 0 ); // to smooth elements that are not on any TopoDS_Face
-
- // ===============================================
- // smooth elements on each TopoDS_Face separately
- // ===============================================
+ }
+ // Clean the maps from the links shared by a sole element, ie
+ // links to which only one element is bound in mapLi_listEl
- set< int >::reverse_iterator fId = faceIdSet.rbegin(); // treate 0 fId at the end
- for ( ; fId != faceIdSet.rend(); ++fId ) {
- // get face surface and submesh
- Handle(Geom_Surface) surface;
- SMESHDS_SubMesh* faceSubMesh = 0;
- TopoDS_Face face;
- double fToler2 = 0, vPeriod = 0., uPeriod = 0., f,l;
- double u1 = 0, u2 = 0, v1 = 0, v2 = 0;
- bool isUPeriodic = false, isVPeriodic = false;
- if ( *fId ) {
- face = TopoDS::Face( aMesh->IndexToShape( *fId ));
- surface = BRep_Tool::Surface( face );
- faceSubMesh = aMesh->MeshElements( *fId );
- fToler2 = BRep_Tool::Tolerance( face );
- fToler2 *= fToler2 * 10.;
- isUPeriodic = surface->IsUPeriodic();
- if ( isUPeriodic )
- vPeriod = surface->UPeriod();
- isVPeriodic = surface->IsVPeriodic();
- if ( isVPeriodic )
- uPeriod = surface->VPeriod();
- surface->Bounds( u1, u2, v1, v2 );
+ for ( itLE = mapLi_listEl.begin(); itLE != mapLi_listEl.end(); itLE++ ) {
+ int nbElems = (*itLE).second.size();
+ if ( nbElems < 2 ) {
+ const SMDS_MeshElement* elem = (*itLE).second.front();
+ SMESH_TLink link = (*itLE).first;
+ mapEl_setLi[ elem ].erase( link );
+ if ( mapEl_setLi[ elem ].empty() )
+ mapEl_setLi.erase( elem );
}
- // ---------------------------------------------------------
- // for elements on a face, find movable and fixed nodes and
- // compute UV for them
- // ---------------------------------------------------------
- bool checkBoundaryNodes = false;
- bool isQuadratic = false;
- set<const SMDS_MeshNode*> setMovableNodes;
- map< const SMDS_MeshNode*, gp_XY* > uvMap, uvMap2;
- list< gp_XY > listUV; // uvs the 2 uvMaps refer to
- list< const SMDS_MeshElement* > elemsOnFace;
+ }
- Extrema_GenExtPS projector;
- GeomAdaptor_Surface surfAdaptor;
- if ( !surface.IsNull() ) {
- surfAdaptor.Load( surface );
- projector.Initialize( surfAdaptor, 20,20, 1e-5,1e-5 );
- }
- int nbElemOnFace = 0;
- itElem = theElems.begin();
- // loop on not yet smoothed elements: look for elems on a face
- while ( itElem != theElems.end() ) {
- if ( faceSubMesh && nbElemOnFace == faceSubMesh->NbElements() )
- break; // all elements found
+ // Algo: fuse triangles into quadrangles
- const SMDS_MeshElement* elem = *itElem;
- if ( !elem || elem->GetType() != SMDSAbs_Face || elem->NbNodes() < 3 ||
- ( faceSubMesh && !faceSubMesh->Contains( elem ))) {
- ++itElem;
- continue;
+ while ( ! mapEl_setLi.empty() ) {
+ // Look for the start element:
+ // the element having the least nb of shared links
+ const SMDS_MeshElement* startElem = 0;
+ int minNbLinks = 4;
+ for ( itEL = mapEl_setLi.begin(); itEL != mapEl_setLi.end(); itEL++ ) {
+ int nbLinks = (*itEL).second.size();
+ if ( nbLinks < minNbLinks ) {
+ startElem = (*itEL).first;
+ minNbLinks = nbLinks;
+ if ( minNbLinks == 1 )
+ break;
}
- elemsOnFace.push_back( elem );
- theElems.erase( itElem++ );
- nbElemOnFace++;
-
- if ( !isQuadratic )
- isQuadratic = elem->IsQuadratic();
+ }
- // get movable nodes of elem
- const SMDS_MeshNode* node;
- SMDS_TypeOfPosition posType;
- SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- int nn = 0, nbn = elem->NbNodes();
- if(elem->IsQuadratic())
- nbn = nbn/2;
- while ( nn++ < nbn ) {
- node = static_cast<const SMDS_MeshNode*>( itN->next() );
- const SMDS_PositionPtr& pos = node->GetPosition();
- posType = pos.get() ? pos->GetTypeOfPosition() : SMDS_TOP_3DSPACE;
- if (posType != SMDS_TOP_EDGE &&
- posType != SMDS_TOP_VERTEX &&
- theFixedNodes.find( node ) == theFixedNodes.end())
- {
- // check if all faces around the node are on faceSubMesh
- // because a node on edge may be bound to face
- SMDS_ElemIteratorPtr eIt = node->GetInverseElementIterator(SMDSAbs_Face);
- bool all = true;
- if ( faceSubMesh ) {
- while ( eIt->more() && all ) {
- const SMDS_MeshElement* e = eIt->next();
- all = faceSubMesh->Contains( e );
- }
- }
- if ( all )
- setMovableNodes.insert( node );
- else
- checkBoundaryNodes = true;
+ // search elements to fuse starting from startElem or links of elements
+ // fused earlyer - startLinks
+ list< SMESH_TLink > startLinks;
+ while ( startElem || !startLinks.empty() ) {
+ while ( !startElem && !startLinks.empty() ) {
+ // Get an element to start, by a link
+ SMESH_TLink linkId = startLinks.front();
+ startLinks.pop_front();
+ itLE = mapLi_listEl.find( linkId );
+ if ( itLE != mapLi_listEl.end() ) {
+ list< const SMDS_MeshElement* > & listElem = (*itLE).second;
+ list< const SMDS_MeshElement* >::iterator itE = listElem.begin();
+ for ( ; itE != listElem.end() ; itE++ )
+ if ( mapEl_setLi.find( (*itE) ) != mapEl_setLi.end() )
+ startElem = (*itE);
+ mapLi_listEl.erase( itLE );
}
- if ( posType == SMDS_TOP_3DSPACE )
- checkBoundaryNodes = true;
}
- if ( surface.IsNull() )
- continue;
+ if ( startElem ) {
+ // Get candidates to be fused
+ const SMDS_MeshElement *tr1 = startElem, *tr2 = 0, *tr3 = 0;
+ const SMESH_TLink *link12, *link13;
+ startElem = 0;
+ ASSERT( mapEl_setLi.find( tr1 ) != mapEl_setLi.end() );
+ set< SMESH_TLink >& setLi = mapEl_setLi[ tr1 ];
+ ASSERT( !setLi.empty() );
+ set< SMESH_TLink >::iterator itLi;
+ for ( itLi = setLi.begin(); itLi != setLi.end(); itLi++ )
+ {
+ const SMESH_TLink & link = (*itLi);
+ itLE = mapLi_listEl.find( link );
+ if ( itLE == mapLi_listEl.end() )
+ continue;
- // get nodes to check UV
- list< const SMDS_MeshNode* > uvCheckNodes;
- itN = elem->nodesIterator();
- nn = 0; nbn = elem->NbNodes();
- if(elem->IsQuadratic())
- nbn = nbn/2;
- while ( nn++ < nbn ) {
- node = static_cast<const SMDS_MeshNode*>( itN->next() );
- if ( uvMap.find( node ) == uvMap.end() )
- uvCheckNodes.push_back( node );
- // add nodes of elems sharing node
-// SMDS_ElemIteratorPtr eIt = node->GetInverseElementIterator(SMDSAbs_Face);
-// while ( eIt->more() ) {
-// const SMDS_MeshElement* e = eIt->next();
-// if ( e != elem ) {
-// SMDS_ElemIteratorPtr nIt = e->nodesIterator();
-// while ( nIt->more() ) {
-// const SMDS_MeshNode* n =
-// static_cast<const SMDS_MeshNode*>( nIt->next() );
-// if ( uvMap.find( n ) == uvMap.end() )
-// uvCheckNodes.push_back( n );
-// }
-// }
-// }
- }
- // check UV on face
- list< const SMDS_MeshNode* >::iterator n = uvCheckNodes.begin();
- for ( ; n != uvCheckNodes.end(); ++n ) {
- node = *n;
- gp_XY uv( 0, 0 );
- const SMDS_PositionPtr& pos = node->GetPosition();
- posType = pos.get() ? pos->GetTypeOfPosition() : SMDS_TOP_3DSPACE;
- // get existing UV
- switch ( posType ) {
- case SMDS_TOP_FACE: {
- SMDS_FacePosition* fPos = ( SMDS_FacePosition* ) pos.get();
- uv.SetCoord( fPos->GetUParameter(), fPos->GetVParameter() );
- break;
- }
- case SMDS_TOP_EDGE: {
- TopoDS_Shape S = aMesh->IndexToShape( pos->GetShapeId() );
- Handle(Geom2d_Curve) pcurve;
- if ( !S.IsNull() && S.ShapeType() == TopAbs_EDGE )
- pcurve = BRep_Tool::CurveOnSurface( TopoDS::Edge( S ), face, f,l );
- if ( !pcurve.IsNull() ) {
- double u = (( SMDS_EdgePosition* ) pos.get() )->GetUParameter();
- uv = pcurve->Value( u ).XY();
+ const SMDS_MeshElement* elem = (*itLE).second.front();
+ if ( elem == tr1 )
+ elem = (*itLE).second.back();
+ mapLi_listEl.erase( itLE );
+ if ( mapEl_setLi.find( elem ) == mapEl_setLi.end())
+ continue;
+ if ( tr2 ) {
+ tr3 = elem;
+ link13 = &link;
+ }
+ else {
+ tr2 = elem;
+ link12 = &link;
+ }
+
+ // add other links of elem to list of links to re-start from
+ set< SMESH_TLink >& links = mapEl_setLi[ elem ];
+ set< SMESH_TLink >::iterator it;
+ for ( it = links.begin(); it != links.end(); it++ ) {
+ const SMESH_TLink& link2 = (*it);
+ if ( link2 != link )
+ startLinks.push_back( link2 );
}
- break;
}
- case SMDS_TOP_VERTEX: {
- TopoDS_Shape S = aMesh->IndexToShape( pos->GetShapeId() );
- if ( !S.IsNull() && S.ShapeType() == TopAbs_VERTEX )
- uv = BRep_Tool::Parameters( TopoDS::Vertex( S ), face ).XY();
- break;
- }
- default:;
- }
- // check existing UV
- bool project = true;
- gp_Pnt pNode ( node->X(), node->Y(), node->Z() );
- double dist1 = DBL_MAX, dist2 = 0;
- if ( posType != SMDS_TOP_3DSPACE ) {
- dist1 = pNode.SquareDistance( surface->Value( uv.X(), uv.Y() ));
- project = dist1 > fToler2;
+
+ // Get nodes of possible quadrangles
+ const SMDS_MeshNode *n12 [4], *n13 [4];
+ bool Ok12 = false, Ok13 = false;
+ const SMDS_MeshNode *linkNode1, *linkNode2;
+ if(tr2) {
+ linkNode1 = link12->first;
+ linkNode2 = link12->second;
+ if ( tr2 && getQuadrangleNodes( n12, linkNode1, linkNode2, tr1, tr2 ))
+ Ok12 = true;
}
- if ( project ) { // compute new UV
- gp_XY newUV;
- if ( !getClosestUV( projector, pNode, newUV )) {
- MESSAGE("Node Projection Failed " << node);
- }
- else {
- if ( isUPeriodic )
- newUV.SetX( ElCLib::InPeriod( newUV.X(), u1, u2 ));
- if ( isVPeriodic )
- newUV.SetY( ElCLib::InPeriod( newUV.Y(), v1, v2 ));
- // check new UV
- if ( posType != SMDS_TOP_3DSPACE )
- dist2 = pNode.SquareDistance( surface->Value( newUV.X(), newUV.Y() ));
- if ( dist2 < dist1 )
- uv = newUV;
- }
+ if(tr3) {
+ linkNode1 = link13->first;
+ linkNode2 = link13->second;
+ if ( tr3 && getQuadrangleNodes( n13, linkNode1, linkNode2, tr1, tr3 ))
+ Ok13 = true;
}
- // store UV in the map
- listUV.push_back( uv );
- uvMap.insert( make_pair( node, &listUV.back() ));
- }
- } // loop on not yet smoothed elements
-
- if ( !faceSubMesh || nbElemOnFace != faceSubMesh->NbElements() )
- checkBoundaryNodes = true;
- // fix nodes on mesh boundary
-
- if ( checkBoundaryNodes ) {
- typedef pair<const SMDS_MeshNode*, const SMDS_MeshNode*> TLink;
- map< TLink, int > linkNbMap; // how many times a link encounters in elemsOnFace
- map< TLink, int >::iterator link_nb;
- // put all elements links to linkNbMap
- list< const SMDS_MeshElement* >::iterator elemIt = elemsOnFace.begin();
- for ( ; elemIt != elemsOnFace.end(); ++elemIt ) {
- const SMDS_MeshElement* elem = (*elemIt);
- int nbn = elem->NbNodes();
- if(elem->IsQuadratic())
- nbn = nbn/2;
- // loop on elem links: insert them in linkNbMap
- const SMDS_MeshNode* curNode, *prevNode = elem->GetNode( nbn );
- for ( int iN = 0; iN < nbn; ++iN ) {
- curNode = elem->GetNode( iN );
- TLink link;
- if ( curNode < prevNode ) link = make_pair( curNode , prevNode );
- else link = make_pair( prevNode , curNode );
- prevNode = curNode;
- link_nb = linkNbMap.find( link );
- if ( link_nb == linkNbMap.end() )
- linkNbMap.insert( make_pair ( link, 1 ));
+ // Choose a pair to fuse
+ if ( Ok12 && Ok13 ) {
+ SMDS_FaceOfNodes quad12 ( n12[ 0 ], n12[ 1 ], n12[ 2 ], n12[ 3 ] );
+ SMDS_FaceOfNodes quad13 ( n13[ 0 ], n13[ 1 ], n13[ 2 ], n13[ 3 ] );
+ double aBadRate12 = getBadRate( &quad12, theCrit );
+ double aBadRate13 = getBadRate( &quad13, theCrit );
+ if ( aBadRate13 < aBadRate12 )
+ Ok12 = false;
else
- link_nb->second++;
- }
- }
- // remove nodes that are in links encountered only once from setMovableNodes
- for ( link_nb = linkNbMap.begin(); link_nb != linkNbMap.end(); ++link_nb ) {
- if ( link_nb->second == 1 ) {
- setMovableNodes.erase( link_nb->first.first );
- setMovableNodes.erase( link_nb->first.second );
+ Ok13 = false;
}
- }
- }
-
- // -----------------------------------------------------
- // for nodes on seam edge, compute one more UV ( uvMap2 );
- // find movable nodes linked to nodes on seam and which
- // are to be smoothed using the second UV ( uvMap2 )
- // -----------------------------------------------------
- set<const SMDS_MeshNode*> nodesNearSeam; // to smooth using uvMap2
- if ( !surface.IsNull() ) {
- TopExp_Explorer eExp( face, TopAbs_EDGE );
- for ( ; eExp.More(); eExp.Next() ) {
- TopoDS_Edge edge = TopoDS::Edge( eExp.Current() );
- if ( !BRep_Tool::IsClosed( edge, face ))
- continue;
- SMESHDS_SubMesh* sm = aMesh->MeshElements( edge );
- if ( !sm ) continue;
- // find out which parameter varies for a node on seam
- double f,l;
- gp_Pnt2d uv1, uv2;
- Handle(Geom2d_Curve) pcurve = BRep_Tool::CurveOnSurface( edge, face, f, l );
- if ( pcurve.IsNull() ) continue;
- uv1 = pcurve->Value( f );
- edge.Reverse();
- pcurve = BRep_Tool::CurveOnSurface( edge, face, f, l );
- if ( pcurve.IsNull() ) continue;
- uv2 = pcurve->Value( f );
- int iPar = Abs( uv1.X() - uv2.X() ) > Abs( uv1.Y() - uv2.Y() ) ? 1 : 2;
- // assure uv1 < uv2
- if ( uv1.Coord( iPar ) > uv2.Coord( iPar )) {
- gp_Pnt2d tmp = uv1; uv1 = uv2; uv2 = tmp;
- }
- // get nodes on seam and its vertices
- list< const SMDS_MeshNode* > seamNodes;
- SMDS_NodeIteratorPtr nSeamIt = sm->GetNodes();
- while ( nSeamIt->more() ) {
- const SMDS_MeshNode* node = nSeamIt->next();
- if ( !isQuadratic || !IsMedium( node ))
- seamNodes.push_back( node );
- }
- TopExp_Explorer vExp( edge, TopAbs_VERTEX );
- for ( ; vExp.More(); vExp.Next() ) {
- sm = aMesh->MeshElements( vExp.Current() );
- if ( sm ) {
- nSeamIt = sm->GetNodes();
- while ( nSeamIt->more() )
- seamNodes.push_back( nSeamIt->next() );
+ // Make quadrangles
+ // and remove fused elems and removed links from the maps
+ mapEl_setLi.erase( tr1 );
+ if ( Ok12 ) {
+ mapEl_setLi.erase( tr2 );
+ mapLi_listEl.erase( *link12 );
+ if(tr1->NbNodes()==3) {
+ const SMDS_MeshElement* newElem = 0;
+ newElem = aMesh->AddFace(n12[0], n12[1], n12[2], n12[3] );
+ myLastCreatedElems.Append(newElem);
+ AddToSameGroups( newElem, tr1, aMesh );
+ int aShapeId = tr1->getshapeId();
+ if ( aShapeId )
+ {
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ }
+ aMesh->RemoveElement( tr1 );
+ aMesh->RemoveElement( tr2 );
+ }
+ else {
+ const SMDS_MeshNode* N1 [6];
+ const SMDS_MeshNode* N2 [6];
+ GetNodesFromTwoTria(tr1,tr2,N1,N2);
+ // now we receive following N1 and N2 (using numeration as above image)
+ // tria1 : (1 2 4 5 9 7) and tria2 : (3 4 2 8 9 6)
+ // i.e. first nodes from both arrays determ new diagonal
+ const SMDS_MeshNode* aNodes[8];
+ aNodes[0] = N1[0];
+ aNodes[1] = N1[1];
+ aNodes[2] = N2[0];
+ aNodes[3] = N2[1];
+ aNodes[4] = N1[3];
+ aNodes[5] = N2[5];
+ aNodes[6] = N2[3];
+ aNodes[7] = N1[5];
+ const SMDS_MeshElement* newElem = 0;
+ newElem = aMesh->AddFace(aNodes[0], aNodes[1], aNodes[2], aNodes[3],
+ aNodes[4], aNodes[5], aNodes[6], aNodes[7]);
+ myLastCreatedElems.Append(newElem);
+ AddToSameGroups( newElem, tr1, aMesh );
+ int aShapeId = tr1->getshapeId();
+ if ( aShapeId )
+ {
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ }
+ aMesh->RemoveElement( tr1 );
+ aMesh->RemoveElement( tr2 );
+ // remove middle node (9)
+ GetMeshDS()->RemoveNode( N1[4] );
}
}
- // loop on nodes on seam
- list< const SMDS_MeshNode* >::iterator noSeIt = seamNodes.begin();
- for ( ; noSeIt != seamNodes.end(); ++noSeIt ) {
- const SMDS_MeshNode* nSeam = *noSeIt;
- map< const SMDS_MeshNode*, gp_XY* >::iterator n_uv = uvMap.find( nSeam );
- if ( n_uv == uvMap.end() )
- continue;
- // set the first UV
- n_uv->second->SetCoord( iPar, uv1.Coord( iPar ));
- // set the second UV
- listUV.push_back( *n_uv->second );
- listUV.back().SetCoord( iPar, uv2.Coord( iPar ));
- if ( uvMap2.empty() )
- uvMap2 = uvMap; // copy the uvMap contents
- uvMap2[ nSeam ] = &listUV.back();
-
- // collect movable nodes linked to ones on seam in nodesNearSeam
- SMDS_ElemIteratorPtr eIt = nSeam->GetInverseElementIterator(SMDSAbs_Face);
- while ( eIt->more() ) {
- const SMDS_MeshElement* e = eIt->next();
- int nbUseMap1 = 0, nbUseMap2 = 0;
- SMDS_ElemIteratorPtr nIt = e->nodesIterator();
- int nn = 0, nbn = e->NbNodes();
- if(e->IsQuadratic()) nbn = nbn/2;
- while ( nn++ < nbn )
- {
- const SMDS_MeshNode* n =
- static_cast<const SMDS_MeshNode*>( nIt->next() );
- if (n == nSeam ||
- setMovableNodes.find( n ) == setMovableNodes.end() )
- continue;
- // add only nodes being closer to uv2 than to uv1
- gp_Pnt pMid (0.5 * ( n->X() + nSeam->X() ),
- 0.5 * ( n->Y() + nSeam->Y() ),
- 0.5 * ( n->Z() + nSeam->Z() ));
- gp_XY uv;
- getClosestUV( projector, pMid, uv );
- if ( uv.Coord( iPar ) > uvMap[ n ]->Coord( iPar ) ) {
- nodesNearSeam.insert( n );
- nbUseMap2++;
+ else if ( Ok13 ) {
+ mapEl_setLi.erase( tr3 );
+ mapLi_listEl.erase( *link13 );
+ if(tr1->NbNodes()==3) {
+ const SMDS_MeshElement* newElem = 0;
+ newElem = aMesh->AddFace(n13[0], n13[1], n13[2], n13[3] );
+ myLastCreatedElems.Append(newElem);
+ AddToSameGroups( newElem, tr1, aMesh );
+ int aShapeId = tr1->getshapeId();
+ if ( aShapeId )
+ {
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
}
- else
- nbUseMap1++;
- }
- // for centroidalSmooth all element nodes must
- // be on one side of a seam
- if ( theSmoothMethod == CENTROIDAL && nbUseMap1 && nbUseMap2 ) {
- SMDS_ElemIteratorPtr nIt = e->nodesIterator();
- nn = 0;
- while ( nn++ < nbn ) {
- const SMDS_MeshNode* n =
- static_cast<const SMDS_MeshNode*>( nIt->next() );
- setMovableNodes.erase( n );
+ aMesh->RemoveElement( tr1 );
+ aMesh->RemoveElement( tr3 );
+ }
+ else {
+ const SMDS_MeshNode* N1 [6];
+ const SMDS_MeshNode* N2 [6];
+ GetNodesFromTwoTria(tr1,tr3,N1,N2);
+ // now we receive following N1 and N2 (using numeration as above image)
+ // tria1 : (1 2 4 5 9 7) and tria2 : (3 4 2 8 9 6)
+ // i.e. first nodes from both arrays determ new diagonal
+ const SMDS_MeshNode* aNodes[8];
+ aNodes[0] = N1[0];
+ aNodes[1] = N1[1];
+ aNodes[2] = N2[0];
+ aNodes[3] = N2[1];
+ aNodes[4] = N1[3];
+ aNodes[5] = N2[5];
+ aNodes[6] = N2[3];
+ aNodes[7] = N1[5];
+ const SMDS_MeshElement* newElem = 0;
+ newElem = aMesh->AddFace(aNodes[0], aNodes[1], aNodes[2], aNodes[3],
+ aNodes[4], aNodes[5], aNodes[6], aNodes[7]);
+ myLastCreatedElems.Append(newElem);
+ AddToSameGroups( newElem, tr1, aMesh );
+ int aShapeId = tr1->getshapeId();
+ if ( aShapeId )
+ {
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
}
- }
+ aMesh->RemoveElement( tr1 );
+ aMesh->RemoveElement( tr3 );
+ // remove middle node (9)
+ GetMeshDS()->RemoveNode( N1[4] );
}
- } // loop on nodes on seam
- } // loop on edge of a face
- } // if ( !face.IsNull() )
+ }
- if ( setMovableNodes.empty() ) {
- MESSAGE( "Face id : " << *fId << " - NO SMOOTHING: no nodes to move!!!");
- continue; // goto next face
- }
+ // Next element to fuse: the rejected one
+ if ( tr3 )
+ startElem = Ok12 ? tr3 : tr2;
- // -------------
- // SMOOTHING //
- // -------------
+ } // if ( startElem )
+ } // while ( startElem || !startLinks.empty() )
+ } // while ( ! mapEl_setLi.empty() )
- int it = -1;
- double maxRatio = -1., maxDisplacement = -1.;
- set<const SMDS_MeshNode*>::iterator nodeToMove;
- for ( it = 0; it < theNbIterations; it++ ) {
- maxDisplacement = 0.;
- nodeToMove = setMovableNodes.begin();
- for ( ; nodeToMove != setMovableNodes.end(); nodeToMove++ ) {
- const SMDS_MeshNode* node = (*nodeToMove);
- gp_XYZ aPrevPos ( node->X(), node->Y(), node->Z() );
-
- // smooth
- bool map2 = ( nodesNearSeam.find( node ) != nodesNearSeam.end() );
- if ( theSmoothMethod == LAPLACIAN )
- laplacianSmooth( node, surface, map2 ? uvMap2 : uvMap );
- else
- centroidalSmooth( node, surface, map2 ? uvMap2 : uvMap );
-
- // node displacement
- gp_XYZ aNewPos ( node->X(), node->Y(), node->Z() );
- Standard_Real aDispl = (aPrevPos - aNewPos).SquareModulus();
- if ( aDispl > maxDisplacement )
- maxDisplacement = aDispl;
- }
- // no node movement => exit
- //if ( maxDisplacement < 1.e-16 ) {
- if ( maxDisplacement < disttol ) {
- MESSAGE("-- no node movement --");
- break;
- }
-
- // check elements quality
- maxRatio = 0;
- list< const SMDS_MeshElement* >::iterator elemIt = elemsOnFace.begin();
- for ( ; elemIt != elemsOnFace.end(); ++elemIt ) {
- const SMDS_MeshElement* elem = (*elemIt);
- if ( !elem || elem->GetType() != SMDSAbs_Face )
- continue;
- SMESH::Controls::TSequenceOfXYZ aPoints;
- if ( aQualityFunc.GetPoints( elem, aPoints )) {
- double aValue = aQualityFunc.GetValue( aPoints );
- if ( aValue > maxRatio )
- maxRatio = aValue;
- }
- }
- if ( maxRatio <= theTgtAspectRatio ) {
- MESSAGE("-- quality achived --");
- break;
- }
- if (it+1 == theNbIterations) {
- MESSAGE("-- Iteration limit exceeded --");
- }
- } // smoothing iterations
-
- MESSAGE(" Face id: " << *fId <<
- " Nb iterstions: " << it <<
- " Displacement: " << maxDisplacement <<
- " Aspect Ratio " << maxRatio);
-
- // ---------------------------------------
- // new nodes positions are computed,
- // record movement in DS and set new UV
- // ---------------------------------------
- nodeToMove = setMovableNodes.begin();
- for ( ; nodeToMove != setMovableNodes.end(); nodeToMove++ ) {
- SMDS_MeshNode* node = const_cast< SMDS_MeshNode* > (*nodeToMove);
- aMesh->MoveNode( node, node->X(), node->Y(), node->Z() );
- map< const SMDS_MeshNode*, gp_XY* >::iterator node_uv = uvMap.find( node );
- if ( node_uv != uvMap.end() ) {
- gp_XY* uv = node_uv->second;
- node->SetPosition
- ( SMDS_PositionPtr( new SMDS_FacePosition( *fId, uv->X(), uv->Y() )));
- }
- }
-
- // move medium nodes of quadratic elements
- if ( isQuadratic )
- {
- SMESH_MesherHelper helper( *GetMesh() );
- if ( !face.IsNull() )
- helper.SetSubShape( face );
- list< const SMDS_MeshElement* >::iterator elemIt = elemsOnFace.begin();
- for ( ; elemIt != elemsOnFace.end(); ++elemIt ) {
- const SMDS_QuadraticFaceOfNodes* QF =
- dynamic_cast<const SMDS_QuadraticFaceOfNodes*> (*elemIt);
- if(QF) {
- vector<const SMDS_MeshNode*> Ns;
- Ns.reserve(QF->NbNodes()+1);
- SMDS_NodeIteratorPtr anIter = QF->interlacedNodesIterator();
- while ( anIter->more() )
- Ns.push_back( anIter->next() );
- Ns.push_back( Ns[0] );
- double x, y, z;
- for(int i=0; i<QF->NbNodes(); i=i+2) {
- if ( !surface.IsNull() ) {
- gp_XY uv1 = helper.GetNodeUV( face, Ns[i], Ns[i+2] );
- gp_XY uv2 = helper.GetNodeUV( face, Ns[i+2], Ns[i] );
- gp_XY uv = ( uv1 + uv2 ) / 2.;
- gp_Pnt xyz = surface->Value( uv.X(), uv.Y() );
- x = xyz.X(); y = xyz.Y(); z = xyz.Z();
- }
- else {
- x = (Ns[i]->X() + Ns[i+2]->X())/2;
- y = (Ns[i]->Y() + Ns[i+2]->Y())/2;
- z = (Ns[i]->Z() + Ns[i+2]->Z())/2;
- }
- if( fabs( Ns[i+1]->X() - x ) > disttol ||
- fabs( Ns[i+1]->Y() - y ) > disttol ||
- fabs( Ns[i+1]->Z() - z ) > disttol ) {
- // we have to move i+1 node
- aMesh->MoveNode( Ns[i+1], x, y, z );
- }
- }
- }
- }
- }
+ return true;
+}
- } // loop on face ids
+/*#define DUMPSO(txt) \
+// cout << txt << endl;
+//=============================================================================
+//
+//
+//
+//=============================================================================
+static void swap( int i1, int i2, int idNodes[], gp_Pnt P[] )
+{
+if ( i1 == i2 )
+return;
+int tmp = idNodes[ i1 ];
+idNodes[ i1 ] = idNodes[ i2 ];
+idNodes[ i2 ] = tmp;
+gp_Pnt Ptmp = P[ i1 ];
+P[ i1 ] = P[ i2 ];
+P[ i2 ] = Ptmp;
+DUMPSO( i1 << "(" << idNodes[ i2 ] << ") <-> " << i2 << "(" << idNodes[ i1 ] << ")");
}
//=======================================================================
-//function : isReverse
-//purpose : Return true if normal of prevNodes is not co-directied with
-// gp_Vec(prevNodes[iNotSame],nextNodes[iNotSame]).
-// iNotSame is where prevNodes and nextNodes are different
+//function : SortQuadNodes
+//purpose : Set 4 nodes of a quadrangle face in a good order.
+// Swap 1<->2 or 2<->3 nodes and correspondingly return
+// 1 or 2 else 0.
//=======================================================================
-static bool isReverse(vector<const SMDS_MeshNode*> prevNodes,
- vector<const SMDS_MeshNode*> nextNodes,
- const int nbNodes,
- const int iNotSame)
+int SMESH_MeshEditor::SortQuadNodes (const SMDS_Mesh * theMesh,
+int idNodes[] )
{
- int iBeforeNotSame = ( iNotSame == 0 ? nbNodes - 1 : iNotSame - 1 );
- int iAfterNotSame = ( iNotSame + 1 == nbNodes ? 0 : iNotSame + 1 );
+ gp_Pnt P[4];
+ int i;
+ for ( i = 0; i < 4; i++ ) {
+ const SMDS_MeshNode *n = theMesh->FindNode( idNodes[i] );
+ if ( !n ) return 0;
+ P[ i ].SetCoord( n->X(), n->Y(), n->Z() );
+ }
+
+ gp_Vec V1(P[0], P[1]);
+ gp_Vec V2(P[0], P[2]);
+ gp_Vec V3(P[0], P[3]);
- const SMDS_MeshNode* nB = prevNodes[ iBeforeNotSame ];
- const SMDS_MeshNode* nA = prevNodes[ iAfterNotSame ];
- const SMDS_MeshNode* nP = prevNodes[ iNotSame ];
- const SMDS_MeshNode* nN = nextNodes[ iNotSame ];
+ gp_Vec Cross1 = V1 ^ V2;
+ gp_Vec Cross2 = V2 ^ V3;
- gp_Pnt pB ( nB->X(), nB->Y(), nB->Z() );
- gp_Pnt pA ( nA->X(), nA->Y(), nA->Z() );
- gp_Pnt pP ( nP->X(), nP->Y(), nP->Z() );
- gp_Pnt pN ( nN->X(), nN->Y(), nN->Z() );
+ i = 0;
+ if (Cross1.Dot(Cross2) < 0)
+ {
+ Cross1 = V2 ^ V1;
+ Cross2 = V1 ^ V3;
- gp_Vec vB ( pP, pB ), vA ( pP, pA ), vN ( pP, pN );
+ if (Cross1.Dot(Cross2) < 0)
+ i = 2;
+ else
+ i = 1;
+ swap ( i, i + 1, idNodes, P );
- return (vA ^ vB) * vN < 0.0;
+ // for ( int ii = 0; ii < 4; ii++ ) {
+ // const SMDS_MeshNode *n = theMesh->FindNode( idNodes[ii] );
+ // DUMPSO( ii << "(" << idNodes[ii] <<") : "<<n->X()<<" "<<n->Y()<<" "<<n->Z());
+ // }
+ }
+ return i;
}
//=======================================================================
-/*!
- * \brief Create elements by sweeping an element
- * \param elem - element to sweep
- * \param newNodesItVec - nodes generated from each node of the element
- * \param newElems - generated elements
- * \param nbSteps - number of sweeping steps
- * \param srcElements - to append elem for each generated element
- */
+//function : SortHexaNodes
+//purpose : Set 8 nodes of a hexahedron in a good order.
+// Return success status
//=======================================================================
-void SMESH_MeshEditor::sweepElement(const SMDS_MeshElement* elem,
- const vector<TNodeOfNodeListMapItr> & newNodesItVec,
- list<const SMDS_MeshElement*>& newElems,
- const int nbSteps,
- SMESH_SequenceOfElemPtr& srcElements)
+bool SMESH_MeshEditor::SortHexaNodes (const SMDS_Mesh * theMesh,
+ int idNodes[] )
{
- SMESHDS_Mesh* aMesh = GetMeshDS();
-
- // Loop on elem nodes:
- // find new nodes and detect same nodes indices
- int nbNodes = elem->NbNodes();
- vector < list< const SMDS_MeshNode* >::const_iterator > itNN( nbNodes );
- vector<const SMDS_MeshNode*> prevNod( nbNodes );
- vector<const SMDS_MeshNode*> nextNod( nbNodes );
- vector<const SMDS_MeshNode*> midlNod( nbNodes );
-
- int iNode, nbSame = 0, iNotSameNode = 0, iSameNode = 0;
- vector<int> sames(nbNodes);
-
- //bool issimple[nbNodes];
- vector<bool> issimple(nbNodes);
-
- for ( iNode = 0; iNode < nbNodes; iNode++ ) {
- TNodeOfNodeListMapItr nnIt = newNodesItVec[ iNode ];
- const SMDS_MeshNode* node = nnIt->first;
- const list< const SMDS_MeshNode* > & listNewNodes = nnIt->second;
- if ( listNewNodes.empty() )
- return;
-
- if(listNewNodes.size()==nbSteps) {
- issimple[iNode] = true;
- }
- else {
- issimple[iNode] = false;
- }
-
- itNN[ iNode ] = listNewNodes.begin();
- prevNod[ iNode ] = node;
- nextNod[ iNode ] = listNewNodes.front();
-//cout<<"iNode="<<iNode<<endl;
-//cout<<" prevNod[iNode]="<< prevNod[iNode]<<" nextNod[iNode]="<< nextNod[iNode]<<endl;
- if ( prevNod[ iNode ] != nextNod [ iNode ])
- iNotSameNode = iNode;
- else {
- iSameNode = iNode;
- //nbSame++;
- sames[nbSame++] = iNode;
- }
- }
-//cout<<"1 nbSame="<<nbSame<<endl;
- if ( nbSame == nbNodes || nbSame > 2) {
- MESSAGE( " Too many same nodes of element " << elem->GetID() );
- return;
+ gp_Pnt P[8];
+ int i;
+ DUMPSO( "INPUT: ========================================");
+ for ( i = 0; i < 8; i++ ) {
+ const SMDS_MeshNode *n = theMesh->FindNode( idNodes[i] );
+ if ( !n ) return false;
+ P[ i ].SetCoord( n->X(), n->Y(), n->Z() );
+ DUMPSO( i << "(" << idNodes[i] <<") : "<<n->X()<<" "<<n->Y()<<" "<<n->Z());
}
+ DUMPSO( "========================================");
-// if( elem->IsQuadratic() && nbSame>0 ) {
-// MESSAGE( "Can not rotate quadratic element " << elem->GetID() );
-// return;
-// }
-
- int iBeforeSame = 0, iAfterSame = 0, iOpposSame = 0;
- if ( nbSame > 0 ) {
- iBeforeSame = ( iSameNode == 0 ? nbNodes - 1 : iSameNode - 1 );
- iAfterSame = ( iSameNode + 1 == nbNodes ? 0 : iSameNode + 1 );
- iOpposSame = ( iSameNode - 2 < 0 ? iSameNode + 2 : iSameNode - 2 );
- }
-//if(nbNodes==8)
-//cout<<" prevNod[0]="<< prevNod[0]<<" prevNod[1]="<< prevNod[1]
-// <<" prevNod[2]="<< prevNod[2]<<" prevNod[3]="<< prevNod[4]
-// <<" prevNod[4]="<< prevNod[4]<<" prevNod[5]="<< prevNod[5]
-// <<" prevNod[6]="<< prevNod[6]<<" prevNod[7]="<< prevNod[7]<<endl;
+ set<int> faceNodes; // ids of bottom face nodes, to be found
+ set<int> checkedId1; // ids of tried 2-nd nodes
+ Standard_Real leastDist = DBL_MAX; // dist of the 4-th node from 123 plane
+ const Standard_Real tol = 1.e-6; // tolerance to find nodes in plane
+ int iMin, iLoop1 = 0;
- // check element orientation
- int i0 = 0, i2 = 2;
- if ( nbNodes > 2 && !isReverse( prevNod, nextNod, nbNodes, iNotSameNode )) {
- //MESSAGE("Reversed elem " << elem );
- i0 = 2;
- i2 = 0;
- if ( nbSame > 0 ) {
- int iAB = iAfterSame + iBeforeSame;
- iBeforeSame = iAB - iBeforeSame;
- iAfterSame = iAB - iAfterSame;
- }
- }
+ // Loop to try the 2-nd nodes
- // make new elements
- for (int iStep = 0; iStep < nbSteps; iStep++ ) {
- // get next nodes
- for ( iNode = 0; iNode < nbNodes; iNode++ ) {
- if(issimple[iNode]) {
- nextNod[ iNode ] = *itNN[ iNode ];
- itNN[ iNode ]++;
- }
- else {
- if( elem->GetType()==SMDSAbs_Node ) {
- // we have to use two nodes
- midlNod[ iNode ] = *itNN[ iNode ];
- itNN[ iNode ]++;
- nextNod[ iNode ] = *itNN[ iNode ];
- itNN[ iNode ]++;
- }
- else if(!elem->IsQuadratic() ||
- elem->IsQuadratic() && elem->IsMediumNode(prevNod[iNode]) ) {
- // we have to use each second node
- itNN[ iNode ]++;
- nextNod[ iNode ] = *itNN[ iNode ];
- itNN[ iNode ]++;
- }
- else {
- // we have to use two nodes
- midlNod[ iNode ] = *itNN[ iNode ];
- itNN[ iNode ]++;
- nextNod[ iNode ] = *itNN[ iNode ];
- itNN[ iNode ]++;
- }
- }
- }
- SMDS_MeshElement* aNewElem = 0;
- if(!elem->IsPoly()) {
- switch ( nbNodes ) {
- case 0:
- return;
- case 1: { // NODE
- if ( nbSame == 0 ) {
- if(issimple[0])
- aNewElem = aMesh->AddEdge( prevNod[ 0 ], nextNod[ 0 ] );
- else
- aNewElem = aMesh->AddEdge( prevNod[ 0 ], nextNod[ 0 ], midlNod[ 0 ] );
- }
- break;
- }
- case 2: { // EDGE
- if ( nbSame == 0 )
- aNewElem = aMesh->AddFace(prevNod[ 0 ], prevNod[ 1 ],
- nextNod[ 1 ], nextNod[ 0 ] );
- else
- aNewElem = aMesh->AddFace(prevNod[ 0 ], prevNod[ 1 ],
- nextNod[ iNotSameNode ] );
+ while ( leastDist > DBL_MIN && ++iLoop1 < 8 )
+ {
+ // Find not checked 2-nd node
+ for ( i = 1; i < 8; i++ )
+ if ( checkedId1.find( idNodes[i] ) == checkedId1.end() ) {
+ int id1 = idNodes[i];
+ swap ( 1, i, idNodes, P );
+ checkedId1.insert ( id1 );
break;
}
- case 3: { // TRIANGLE or quadratic edge
- if(elem->GetType() == SMDSAbs_Face) { // TRIANGLE
-
- if ( nbSame == 0 ) // --- pentahedron
- aNewElem = aMesh->AddVolume (prevNod[ i0 ], prevNod[ 1 ], prevNod[ i2 ],
- nextNod[ i0 ], nextNod[ 1 ], nextNod[ i2 ] );
+ // Find the 3-d node so that 1-2-3 triangle to be on a hexa face,
+ // ie that all but meybe one (id3 which is on the same face) nodes
+ // lay on the same side from the triangle plane.
- else if ( nbSame == 1 ) // --- pyramid
- aNewElem = aMesh->AddVolume (prevNod[ iBeforeSame ], prevNod[ iAfterSame ],
- nextNod[ iAfterSame ], nextNod[ iBeforeSame ],
- nextNod[ iSameNode ]);
+ bool manyInPlane = false; // more than 4 nodes lay in plane
+ int iLoop2 = 0;
+ while ( ++iLoop2 < 6 ) {
- else // 2 same nodes: --- tetrahedron
- aNewElem = aMesh->AddVolume (prevNod[ i0 ], prevNod[ 1 ], prevNod[ i2 ],
- nextNod[ iNotSameNode ]);
- }
- else { // quadratic edge
- if(nbSame==0) { // quadratic quadrangle
- aNewElem = aMesh->AddFace(prevNod[0], nextNod[0], nextNod[1], prevNod[1],
- midlNod[0], nextNod[2], midlNod[1], prevNod[2]);
- }
- else if(nbSame==1) { // quadratic triangle
- if(sames[0]==2)
- return; // medium node on axis
- else if(sames[0]==0) {
- aNewElem = aMesh->AddFace(prevNod[0], nextNod[1], prevNod[1],
- nextNod[2], midlNod[1], prevNod[2]);
- }
- else { // sames[0]==1
- aNewElem = aMesh->AddFace(prevNod[0], nextNod[0], prevNod[1],
- midlNod[0], nextNod[2], prevNod[2]);
- }
+ // get 1-2-3 plane coeffs
+ Standard_Real A, B, C, D;
+ gp_Vec N = gp_Vec (P[0], P[1]).Crossed( gp_Vec (P[0], P[2]) );
+ if ( N.SquareMagnitude() > gp::Resolution() )
+ {
+ gp_Pln pln ( P[0], N );
+ pln.Coefficients( A, B, C, D );
+
+ // find the node (iMin) closest to pln
+ Standard_Real dist[ 8 ], minDist = DBL_MAX;
+ set<int> idInPln;
+ for ( i = 3; i < 8; i++ ) {
+ dist[i] = A * P[i].X() + B * P[i].Y() + C * P[i].Z() + D;
+ if ( fabs( dist[i] ) < minDist ) {
+ minDist = fabs( dist[i] );
+ iMin = i;
}
- else
- return;
+ if ( fabs( dist[i] ) <= tol )
+ idInPln.insert( idNodes[i] );
}
- break;
- }
- case 4: { // QUADRANGLE
- if ( nbSame == 0 ) // --- hexahedron
- aNewElem = aMesh->AddVolume (prevNod[ i0 ], prevNod[ 1 ], prevNod[ i2 ], prevNod[ 3 ],
- nextNod[ i0 ], nextNod[ 1 ], nextNod[ i2 ], nextNod[ 3 ]);
+ // there should not be more than 4 nodes in bottom plane
+ if ( idInPln.size() > 1 )
+ {
+ DUMPSO( "### idInPln.size() = " << idInPln.size());
+ // idInPlane does not contain the first 3 nodes
+ if ( manyInPlane || idInPln.size() == 5)
+ return false; // all nodes in one plane
+ manyInPlane = true;
- else if ( nbSame == 1 ) { // --- pyramid + pentahedron
- aNewElem = aMesh->AddVolume (prevNod[ iBeforeSame ], prevNod[ iAfterSame ],
- nextNod[ iAfterSame ], nextNod[ iBeforeSame ],
- nextNod[ iSameNode ]);
- newElems.push_back( aNewElem );
- aNewElem = aMesh->AddVolume (prevNod[ iAfterSame ], prevNod[ iOpposSame ],
- prevNod[ iBeforeSame ], nextNod[ iAfterSame ],
- nextNod[ iOpposSame ], nextNod[ iBeforeSame ] );
- }
- else if ( nbSame == 2 ) { // pentahedron
- if ( prevNod[ iBeforeSame ] == nextNod[ iBeforeSame ] )
- // iBeforeSame is same too
- aNewElem = aMesh->AddVolume (prevNod[ iBeforeSame ], prevNod[ iOpposSame ],
- nextNod[ iOpposSame ], prevNod[ iSameNode ],
- prevNod[ iAfterSame ], nextNod[ iAfterSame ]);
- else
- // iAfterSame is same too
- aNewElem = aMesh->AddVolume (prevNod[ iSameNode ], prevNod[ iBeforeSame ],
- nextNod[ iBeforeSame ], prevNod[ iAfterSame ],
- prevNod[ iOpposSame ], nextNod[ iOpposSame ]);
- }
- break;
- }
- case 6: { // quadratic triangle
- // create pentahedron with 15 nodes
- if(i0>0) { // reversed case
- aNewElem = aMesh->AddVolume (prevNod[0], prevNod[2], prevNod[1],
- nextNod[0], nextNod[2], nextNod[1],
- prevNod[5], prevNod[4], prevNod[3],
- nextNod[5], nextNod[4], nextNod[3],
- midlNod[0], midlNod[2], midlNod[1]);
- }
- else { // not reversed case
- aNewElem = aMesh->AddVolume (prevNod[0], prevNod[1], prevNod[2],
- nextNod[0], nextNod[1], nextNod[2],
- prevNod[3], prevNod[4], prevNod[5],
- nextNod[3], nextNod[4], nextNod[5],
- midlNod[0], midlNod[1], midlNod[2]);
+ // set the 1-st node to be not in plane
+ for ( i = 3; i < 8; i++ ) {
+ if ( idInPln.find( idNodes[ i ] ) == idInPln.end() ) {
+ DUMPSO( "### Reset 0-th node");
+ swap( 0, i, idNodes, P );
+ break;
+ }
+ }
+
+ // reset to re-check second nodes
+ leastDist = DBL_MAX;
+ faceNodes.clear();
+ checkedId1.clear();
+ iLoop1 = 0;
+ break; // from iLoop2;
}
- break;
- }
- case 8: { // quadratic quadrangle
- // create hexahedron with 20 nodes
- if(i0>0) { // reversed case
- aNewElem = aMesh->AddVolume (prevNod[0], prevNod[3], prevNod[2], prevNod[1],
- nextNod[0], nextNod[3], nextNod[2], nextNod[1],
- prevNod[7], prevNod[6], prevNod[5], prevNod[4],
- nextNod[7], nextNod[6], nextNod[5], nextNod[4],
- midlNod[0], midlNod[3], midlNod[2], midlNod[1]);
+
+ // check that the other 4 nodes are on the same side
+ bool sameSide = true;
+ bool isNeg = dist[ iMin == 3 ? 4 : 3 ] <= 0.;
+ for ( i = 3; sameSide && i < 8; i++ ) {
+ if ( i != iMin )
+ sameSide = ( isNeg == dist[i] <= 0.);
}
- else { // not reversed case
- aNewElem = aMesh->AddVolume (prevNod[0], prevNod[1], prevNod[2], prevNod[3],
- nextNod[0], nextNod[1], nextNod[2], nextNod[3],
- prevNod[4], prevNod[5], prevNod[6], prevNod[7],
- nextNod[4], nextNod[5], nextNod[6], nextNod[7],
- midlNod[0], midlNod[1], midlNod[2], midlNod[3]);
+
+ // keep best solution
+ if ( sameSide && minDist < leastDist ) {
+ leastDist = minDist;
+ faceNodes.clear();
+ faceNodes.insert( idNodes[ 1 ] );
+ faceNodes.insert( idNodes[ 2 ] );
+ faceNodes.insert( idNodes[ iMin ] );
+ DUMPSO( "loop " << iLoop2 << " id2 " << idNodes[ 1 ] << " id3 " << idNodes[ 2 ]
+ << " leastDist = " << leastDist);
+ if ( leastDist <= DBL_MIN )
+ break;
}
- break;
- }
- default: {
- // realized for extrusion only
- //vector<const SMDS_MeshNode*> polyedre_nodes (nbNodes*2 + 4*nbNodes);
- //vector<int> quantities (nbNodes + 2);
-
- //quantities[0] = nbNodes; // bottom of prism
- //for (int inode = 0; inode < nbNodes; inode++) {
- // polyedre_nodes[inode] = prevNod[inode];
- //}
-
- //quantities[1] = nbNodes; // top of prism
- //for (int inode = 0; inode < nbNodes; inode++) {
- // polyedre_nodes[nbNodes + inode] = nextNod[inode];
- //}
-
- //for (int iface = 0; iface < nbNodes; iface++) {
- // quantities[iface + 2] = 4;
- // int inextface = (iface == nbNodes - 1) ? 0 : iface + 1;
- // polyedre_nodes[2*nbNodes + 4*iface + 0] = prevNod[iface];
- // polyedre_nodes[2*nbNodes + 4*iface + 1] = prevNod[inextface];
- // polyedre_nodes[2*nbNodes + 4*iface + 2] = nextNod[inextface];
- // polyedre_nodes[2*nbNodes + 4*iface + 3] = nextNod[iface];
- //}
- //aNewElem = aMesh->AddPolyhedralVolume (polyedre_nodes, quantities);
- break;
}
+
+ // set next 3-d node to check
+ int iNext = 2 + iLoop2;
+ if ( iNext < 8 ) {
+ DUMPSO( "Try 2-nd");
+ swap ( 2, iNext, idNodes, P );
}
+ } // while ( iLoop2 < 6 )
+ } // iLoop1
+
+ if ( faceNodes.empty() ) return false;
+
+ // Put the faceNodes in proper places
+ for ( i = 4; i < 8; i++ ) {
+ if ( faceNodes.find( idNodes[ i ] ) != faceNodes.end() ) {
+ // find a place to put
+ int iTo = 1;
+ while ( faceNodes.find( idNodes[ iTo ] ) != faceNodes.end() )
+ iTo++;
+ DUMPSO( "Set faceNodes");
+ swap ( iTo, i, idNodes, P );
}
+ }
- if(!aNewElem) {
- // realized for extrusion only
- vector<const SMDS_MeshNode*> polyedre_nodes (nbNodes*2 + 4*nbNodes);
- vector<int> quantities (nbNodes + 2);
- quantities[0] = nbNodes; // bottom of prism
- for (int inode = 0; inode < nbNodes; inode++) {
- polyedre_nodes[inode] = prevNod[inode];
- }
+ // Set nodes of the found bottom face in good order
+ DUMPSO( " Found bottom face: ");
+ i = SortQuadNodes( theMesh, idNodes );
+ if ( i ) {
+ gp_Pnt Ptmp = P[ i ];
+ P[ i ] = P[ i+1 ];
+ P[ i+1 ] = Ptmp;
+ }
+ // else
+ // for ( int ii = 0; ii < 4; ii++ ) {
+ // const SMDS_MeshNode *n = theMesh->FindNode( idNodes[ii] );
+ // DUMPSO( ii << "(" << idNodes[ii] <<") : "<<n->X()<<" "<<n->Y()<<" "<<n->Z());
+ // }
- quantities[1] = nbNodes; // top of prism
- for (int inode = 0; inode < nbNodes; inode++) {
- polyedre_nodes[nbNodes + inode] = nextNod[inode];
- }
+ // Gravity center of the top and bottom faces
+ gp_Pnt aGCb = ( P[0].XYZ() + P[1].XYZ() + P[2].XYZ() + P[3].XYZ() ) / 4.;
+ gp_Pnt aGCt = ( P[4].XYZ() + P[5].XYZ() + P[6].XYZ() + P[7].XYZ() ) / 4.;
- for (int iface = 0; iface < nbNodes; iface++) {
- quantities[iface + 2] = 4;
- int inextface = (iface == nbNodes - 1) ? 0 : iface + 1;
- polyedre_nodes[2*nbNodes + 4*iface + 0] = prevNod[iface];
- polyedre_nodes[2*nbNodes + 4*iface + 1] = prevNod[inextface];
- polyedre_nodes[2*nbNodes + 4*iface + 2] = nextNod[inextface];
- polyedre_nodes[2*nbNodes + 4*iface + 3] = nextNod[iface];
- }
- aNewElem = aMesh->AddPolyhedralVolume (polyedre_nodes, quantities);
- }
+ // Get direction from the bottom to the top face
+ gp_Vec upDir ( aGCb, aGCt );
+ Standard_Real upDirSize = upDir.Magnitude();
+ if ( upDirSize <= gp::Resolution() ) return false;
+ upDir / upDirSize;
- if ( aNewElem ) {
- newElems.push_back( aNewElem );
- myLastCreatedElems.Append(aNewElem);
- srcElements.Append( elem );
+ // Assure that the bottom face normal points up
+ gp_Vec Nb = gp_Vec (P[0], P[1]).Crossed( gp_Vec (P[0], P[2]) );
+ Nb += gp_Vec (P[0], P[2]).Crossed( gp_Vec (P[0], P[3]) );
+ if ( Nb.Dot( upDir ) < 0 ) {
+ DUMPSO( "Reverse bottom face");
+ swap( 1, 3, idNodes, P );
+ }
+
+ // Find 5-th node - the one closest to the 1-st among the last 4 nodes.
+ Standard_Real minDist = DBL_MAX;
+ for ( i = 4; i < 8; i++ ) {
+ // projection of P[i] to the plane defined by P[0] and upDir
+ gp_Pnt Pp = P[i].Translated( upDir * ( upDir.Dot( gp_Vec( P[i], P[0] ))));
+ Standard_Real sqDist = P[0].SquareDistance( Pp );
+ if ( sqDist < minDist ) {
+ minDist = sqDist;
+ iMin = i;
}
+ }
+ DUMPSO( "Set 4-th");
+ swap ( 4, iMin, idNodes, P );
- // set new prev nodes
- for ( iNode = 0; iNode < nbNodes; iNode++ )
- prevNod[ iNode ] = nextNod[ iNode ];
+ // Set nodes of the top face in good order
+ DUMPSO( "Sort top face");
+ i = SortQuadNodes( theMesh, &idNodes[4] );
+ if ( i ) {
+ i += 4;
+ gp_Pnt Ptmp = P[ i ];
+ P[ i ] = P[ i+1 ];
+ P[ i+1 ] = Ptmp;
+ }
- } // for steps
-}
+ // Assure that direction of the top face normal is from the bottom face
+ gp_Vec Nt = gp_Vec (P[4], P[5]).Crossed( gp_Vec (P[4], P[6]) );
+ Nt += gp_Vec (P[4], P[6]).Crossed( gp_Vec (P[4], P[7]) );
+ if ( Nt.Dot( upDir ) < 0 ) {
+ DUMPSO( "Reverse top face");
+ swap( 5, 7, idNodes, P );
+ }
-//=======================================================================
+ // DUMPSO( "OUTPUT: ========================================");
+ // for ( i = 0; i < 8; i++ ) {
+ // float *p = ugrid->GetPoint(idNodes[i]);
+ // DUMPSO( i << "(" << idNodes[i] << ") : " << p[0] << " " << p[1] << " " << p[2]);
+ // }
+
+ return true;
+}*/
+
+//================================================================================
/*!
- * \brief Create 1D and 2D elements around swept elements
- * \param mapNewNodes - source nodes and ones generated from them
- * \param newElemsMap - source elements and ones generated from them
- * \param elemNewNodesMap - nodes generated from each node of each element
- * \param elemSet - all swept elements
- * \param nbSteps - number of sweeping steps
- * \param srcElements - to append elem for each generated element
+ * \brief Return nodes linked to the given one
+ * \param theNode - the node
+ * \param linkedNodes - the found nodes
+ * \param type - the type of elements to check
+ *
+ * Medium nodes are ignored
*/
-//=======================================================================
+//================================================================================
-void SMESH_MeshEditor::makeWalls (TNodeOfNodeListMap & mapNewNodes,
- TElemOfElemListMap & newElemsMap,
- TElemOfVecOfNnlmiMap & elemNewNodesMap,
- TIDSortedElemSet& elemSet,
- const int nbSteps,
- SMESH_SequenceOfElemPtr& srcElements)
+void SMESH_MeshEditor::GetLinkedNodes( const SMDS_MeshNode* theNode,
+ TIDSortedElemSet & linkedNodes,
+ SMDSAbs_ElementType type )
{
- ASSERT( newElemsMap.size() == elemNewNodesMap.size() );
- SMESHDS_Mesh* aMesh = GetMeshDS();
-
- // Find nodes belonging to only one initial element - sweep them to get edges.
-
- TNodeOfNodeListMapItr nList = mapNewNodes.begin();
- for ( ; nList != mapNewNodes.end(); nList++ ) {
- const SMDS_MeshNode* node =
- static_cast<const SMDS_MeshNode*>( nList->first );
- SMDS_ElemIteratorPtr eIt = node->GetInverseElementIterator();
- int nbInitElems = 0;
- const SMDS_MeshElement* el = 0;
- SMDSAbs_ElementType highType = SMDSAbs_Edge; // count most complex elements only
- while ( eIt->more() && nbInitElems < 2 ) {
- el = eIt->next();
- SMDSAbs_ElementType type = el->GetType();
- if ( type == SMDSAbs_Volume || type < highType ) continue;
- if ( type > highType ) {
- nbInitElems = 0;
- highType = type;
- }
- if ( elemSet.find(el) != elemSet.end() )
- nbInitElems++;
- }
- if ( nbInitElems < 2 ) {
- bool NotCreateEdge = el && el->IsQuadratic() && el->IsMediumNode(node);
- if(!NotCreateEdge) {
- vector<TNodeOfNodeListMapItr> newNodesItVec( 1, nList );
- list<const SMDS_MeshElement*> newEdges;
- sweepElement( node, newNodesItVec, newEdges, nbSteps, srcElements );
+ SMDS_ElemIteratorPtr elemIt = theNode->GetInverseElementIterator(type);
+ while ( elemIt->more() )
+ {
+ const SMDS_MeshElement* elem = elemIt->next();
+ if(elem->GetType() == SMDSAbs_0DElement)
+ continue;
+
+ SMDS_ElemIteratorPtr nodeIt = elem->nodesIterator();
+ if ( elem->GetType() == SMDSAbs_Volume )
+ {
+ SMDS_VolumeTool vol( elem );
+ while ( nodeIt->more() ) {
+ const SMDS_MeshNode* n = cast2Node( nodeIt->next() );
+ if ( theNode != n && vol.IsLinked( theNode, n ))
+ linkedNodes.insert( n );
}
}
- }
-
- // Make a ceiling for each element ie an equal element of last new nodes.
- // Find free links of faces - make edges and sweep them into faces.
-
- TElemOfElemListMap::iterator itElem = newElemsMap.begin();
- TElemOfVecOfNnlmiMap::iterator itElemNodes = elemNewNodesMap.begin();
- for ( ; itElem != newElemsMap.end(); itElem++, itElemNodes++ ) {
- const SMDS_MeshElement* elem = itElem->first;
- vector<TNodeOfNodeListMapItr>& vecNewNodes = itElemNodes->second;
-
- if ( elem->GetType() == SMDSAbs_Edge ) {
- // create a ceiling edge
- if (!elem->IsQuadratic()) {
- if ( !aMesh->FindEdge( vecNewNodes[ 0 ]->second.back(),
- vecNewNodes[ 1 ]->second.back())) {
- myLastCreatedElems.Append(aMesh->AddEdge(vecNewNodes[ 0 ]->second.back(),
- vecNewNodes[ 1 ]->second.back()));
- srcElements.Append( myLastCreatedElems.Last() );
- }
- }
- else {
- if ( !aMesh->FindEdge( vecNewNodes[ 0 ]->second.back(),
- vecNewNodes[ 1 ]->second.back(),
- vecNewNodes[ 2 ]->second.back())) {
- myLastCreatedElems.Append(aMesh->AddEdge(vecNewNodes[ 0 ]->second.back(),
- vecNewNodes[ 1 ]->second.back(),
- vecNewNodes[ 2 ]->second.back()));
- srcElements.Append( myLastCreatedElems.Last() );
- }
- }
- }
- if ( elem->GetType() != SMDSAbs_Face )
- continue;
-
- if(itElem->second.size()==0) continue;
-
- bool hasFreeLinks = false;
-
- TIDSortedElemSet avoidSet;
- avoidSet.insert( elem );
-
- set<const SMDS_MeshNode*> aFaceLastNodes;
- int iNode, nbNodes = vecNewNodes.size();
- if(!elem->IsQuadratic()) {
- // loop on the face nodes
- for ( iNode = 0; iNode < nbNodes; iNode++ ) {
- aFaceLastNodes.insert( vecNewNodes[ iNode ]->second.back() );
- // look for free links of the face
- int iNext = ( iNode + 1 == nbNodes ) ? 0 : iNode + 1;
- const SMDS_MeshNode* n1 = vecNewNodes[ iNode ]->first;
- const SMDS_MeshNode* n2 = vecNewNodes[ iNext ]->first;
- // check if a link is free
- if ( ! SMESH_MeshEditor::FindFaceInSet ( n1, n2, elemSet, avoidSet )) {
- hasFreeLinks = true;
- // make an edge and a ceiling for a new edge
- if ( !aMesh->FindEdge( n1, n2 )) {
- myLastCreatedElems.Append(aMesh->AddEdge( n1, n2 )); // free link edge
- srcElements.Append( myLastCreatedElems.Last() );
- }
- n1 = vecNewNodes[ iNode ]->second.back();
- n2 = vecNewNodes[ iNext ]->second.back();
- if ( !aMesh->FindEdge( n1, n2 )) {
- myLastCreatedElems.Append(aMesh->AddEdge( n1, n2 )); // ceiling edge
- srcElements.Append( myLastCreatedElems.Last() );
- }
- }
- }
- }
- else { // elem is quadratic face
- int nbn = nbNodes/2;
- for ( iNode = 0; iNode < nbn; iNode++ ) {
- aFaceLastNodes.insert( vecNewNodes[ iNode ]->second.back() );
- int iNext = ( iNode + 1 == nbn ) ? 0 : iNode + 1;
- const SMDS_MeshNode* n1 = vecNewNodes[ iNode ]->first;
- const SMDS_MeshNode* n2 = vecNewNodes[ iNext ]->first;
- // check if a link is free
- if ( ! SMESH_MeshEditor::FindFaceInSet ( n1, n2, elemSet, avoidSet )) {
- hasFreeLinks = true;
- // make an edge and a ceiling for a new edge
- // find medium node
- const SMDS_MeshNode* n3 = vecNewNodes[ iNode+nbn ]->first;
- if ( !aMesh->FindEdge( n1, n2, n3 )) {
- myLastCreatedElems.Append(aMesh->AddEdge( n1, n2, n3 )); // free link edge
- srcElements.Append( myLastCreatedElems.Last() );
- }
- n1 = vecNewNodes[ iNode ]->second.back();
- n2 = vecNewNodes[ iNext ]->second.back();
- n3 = vecNewNodes[ iNode+nbn ]->second.back();
- if ( !aMesh->FindEdge( n1, n2, n3 )) {
- myLastCreatedElems.Append(aMesh->AddEdge( n1, n2, n3 )); // ceiling edge
- srcElements.Append( myLastCreatedElems.Last() );
+ else
+ {
+ for ( int i = 0; nodeIt->more(); ++i ) {
+ const SMDS_MeshNode* n = cast2Node( nodeIt->next() );
+ if ( n == theNode ) {
+ int iBefore = i - 1;
+ int iAfter = i + 1;
+ if ( elem->IsQuadratic() ) {
+ int nb = elem->NbNodes() / 2;
+ iAfter = SMESH_MesherHelper::WrapIndex( iAfter, nb );
+ iBefore = SMESH_MesherHelper::WrapIndex( iBefore, nb );
}
+ linkedNodes.insert( elem->GetNodeWrap( iAfter ));
+ linkedNodes.insert( elem->GetNodeWrap( iBefore ));
}
}
- for ( iNode = nbn; iNode < 2*nbn; iNode++ ) {
- aFaceLastNodes.insert( vecNewNodes[ iNode ]->second.back() );
- }
}
+ }
+}
- // sweep free links into faces
-
- if ( hasFreeLinks ) {
- list<const SMDS_MeshElement*> & newVolumes = itElem->second;
- int iVol, volNb, nbVolumesByStep = newVolumes.size() / nbSteps;
-
- set<const SMDS_MeshNode*> initNodeSet, topNodeSet, faceNodeSet;
- for ( iNode = 0; iNode < nbNodes; iNode++ ) {
- initNodeSet.insert( vecNewNodes[ iNode ]->first );
- topNodeSet .insert( vecNewNodes[ iNode ]->second.back() );
- }
- for ( volNb = 0; volNb < nbVolumesByStep; volNb++ ) {
- list<const SMDS_MeshElement*>::iterator v = newVolumes.begin();
- iVol = 0;
- while ( iVol++ < volNb ) v++;
- // find indices of free faces of a volume and their source edges
- list< int > freeInd;
- list< const SMDS_MeshElement* > srcEdges; // source edges of free faces
- SMDS_VolumeTool vTool( *v );
- int iF, nbF = vTool.NbFaces();
- for ( iF = 0; iF < nbF; iF ++ ) {
- if (vTool.IsFreeFace( iF ) &&
- vTool.GetFaceNodes( iF, faceNodeSet ) &&
- initNodeSet != faceNodeSet) // except an initial face
- {
- if ( nbSteps == 1 && faceNodeSet == topNodeSet )
- continue;
- freeInd.push_back( iF );
- // find source edge of a free face iF
- vector<const SMDS_MeshNode*> commonNodes; // shared by the initial and free faces
- commonNodes.resize( initNodeSet.size(), NULL ); // avoid spoiling memory
- std::set_intersection( faceNodeSet.begin(), faceNodeSet.end(),
- initNodeSet.begin(), initNodeSet.end(),
- commonNodes.begin());
- if ( (*v)->IsQuadratic() )
- srcEdges.push_back(aMesh->FindEdge (commonNodes[0],commonNodes[1],commonNodes[2]));
- else
- srcEdges.push_back(aMesh->FindEdge (commonNodes[0],commonNodes[1]));
-#ifdef _DEBUG_
- if ( !srcEdges.back() )
- {
- cout << "SMESH_MeshEditor::makeWalls(), no source edge found for a free face #"
- << iF << " of volume #" << vTool.ID() << endl;
- }
-#endif
- }
- }
- if ( freeInd.empty() )
- continue;
+//=======================================================================
+//function : laplacianSmooth
+//purpose : pulls theNode toward the center of surrounding nodes directly
+// connected to that node along an element edge
+//=======================================================================
- // create faces for all steps;
- // if such a face has been already created by sweep of edge,
- // assure that its orientation is OK
- for ( int iStep = 0; iStep < nbSteps; iStep++ ) {
- vTool.Set( *v );
- vTool.SetExternalNormal();
- list< int >::iterator ind = freeInd.begin();
- list< const SMDS_MeshElement* >::iterator srcEdge = srcEdges.begin();
- for ( ; ind != freeInd.end(); ++ind, ++srcEdge ) // loop on free faces
- {
- const SMDS_MeshNode** nodes = vTool.GetFaceNodes( *ind );
- int nbn = vTool.NbFaceNodes( *ind );
- switch ( nbn ) {
- case 3: { ///// triangle
- const SMDS_MeshFace * f = aMesh->FindFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ]);
- if ( !f )
- myLastCreatedElems.Append(aMesh->AddFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ] ));
- else if ( nodes[ 1 ] != f->GetNode( f->GetNodeIndex( nodes[ 0 ] ) + 1 ))
- aMesh->ChangeElementNodes( f, nodes, nbn );
- break;
- }
- case 4: { ///// quadrangle
- const SMDS_MeshFace * f = aMesh->FindFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ], nodes[ 3 ]);
- if ( !f )
- myLastCreatedElems.Append(aMesh->AddFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ], nodes[ 3 ] ));
- else if ( nodes[ 1 ] != f->GetNode( f->GetNodeIndex( nodes[ 0 ] ) + 1 ))
- aMesh->ChangeElementNodes( f, nodes, nbn );
- break;
- }
- default:
- if( (*v)->IsQuadratic() ) {
- if(nbn==6) { /////// quadratic triangle
- const SMDS_MeshFace * f = aMesh->FindFace( nodes[0], nodes[2], nodes[4],
- nodes[1], nodes[3], nodes[5] );
- if ( !f )
- myLastCreatedElems.Append(aMesh->AddFace(nodes[0], nodes[2], nodes[4],
- nodes[1], nodes[3], nodes[5]));
- else if ( nodes[ 2 ] != f->GetNode( f->GetNodeIndex( nodes[ 0 ] ) + 1 ))
- aMesh->ChangeElementNodes( f, nodes, nbn );
- }
- else { /////// quadratic quadrangle
- const SMDS_MeshFace * f = aMesh->FindFace( nodes[0], nodes[2], nodes[4], nodes[6],
- nodes[1], nodes[3], nodes[5], nodes[7] );
- if ( !f )
- myLastCreatedElems.Append(aMesh->AddFace(nodes[0], nodes[2], nodes[4], nodes[6],
- nodes[1], nodes[3], nodes[5], nodes[7]));
- else if ( nodes[ 2 ] != f->GetNode( f->GetNodeIndex( nodes[ 0 ] ) + 1 ))
- aMesh->ChangeElementNodes( f, nodes, nbn );
- }
- }
- else { //////// polygon
- vector<const SMDS_MeshNode*> polygon_nodes ( nodes, &nodes[nbn] );
- const SMDS_MeshFace * f = aMesh->FindFace( polygon_nodes );
- if ( !f )
- myLastCreatedElems.Append(aMesh->AddPolygonalFace(polygon_nodes));
- else if ( nodes[ 1 ] != f->GetNode( f->GetNodeIndex( nodes[ 0 ] ) + 1 ))
- aMesh->ChangeElementNodes( f, nodes, nbn );
- }
- }
- while ( srcElements.Length() < myLastCreatedElems.Length() )
- srcElements.Append( *srcEdge );
+void laplacianSmooth(const SMDS_MeshNode* theNode,
+ const Handle(Geom_Surface)& theSurface,
+ map< const SMDS_MeshNode*, gp_XY* >& theUVMap)
+{
+ // find surrounding nodes
- } // loop on free faces
+ TIDSortedElemSet nodeSet;
+ SMESH_MeshEditor::GetLinkedNodes( theNode, nodeSet, SMDSAbs_Face );
- // go to the next volume
- iVol = 0;
- while ( iVol++ < nbVolumesByStep ) v++;
- }
- }
- } // sweep free links into faces
+ // compute new coodrs
- // Make a ceiling face with a normal external to a volume
+ double coord[] = { 0., 0., 0. };
+ TIDSortedElemSet::iterator nodeSetIt = nodeSet.begin();
+ for ( ; nodeSetIt != nodeSet.end(); nodeSetIt++ ) {
+ const SMDS_MeshNode* node = cast2Node(*nodeSetIt);
+ if ( theSurface.IsNull() ) { // smooth in 3D
+ coord[0] += node->X();
+ coord[1] += node->Y();
+ coord[2] += node->Z();
+ }
+ else { // smooth in 2D
+ ASSERT( theUVMap.find( node ) != theUVMap.end() );
+ gp_XY* uv = theUVMap[ node ];
+ coord[0] += uv->X();
+ coord[1] += uv->Y();
+ }
+ }
+ int nbNodes = nodeSet.size();
+ if ( !nbNodes )
+ return;
+ coord[0] /= nbNodes;
+ coord[1] /= nbNodes;
- SMDS_VolumeTool lastVol( itElem->second.back() );
+ if ( !theSurface.IsNull() ) {
+ ASSERT( theUVMap.find( theNode ) != theUVMap.end() );
+ theUVMap[ theNode ]->SetCoord( coord[0], coord[1] );
+ gp_Pnt p3d = theSurface->Value( coord[0], coord[1] );
+ coord[0] = p3d.X();
+ coord[1] = p3d.Y();
+ coord[2] = p3d.Z();
+ }
+ else
+ coord[2] /= nbNodes;
- int iF = lastVol.GetFaceIndex( aFaceLastNodes );
- if ( iF >= 0 ) {
- lastVol.SetExternalNormal();
- const SMDS_MeshNode** nodes = lastVol.GetFaceNodes( iF );
- int nbn = lastVol.NbFaceNodes( iF );
- switch ( nbn ) {
- case 3:
- if (!hasFreeLinks ||
- !aMesh->FindFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ]))
- myLastCreatedElems.Append(aMesh->AddFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ] ));
- break;
- case 4:
- if (!hasFreeLinks ||
- !aMesh->FindFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ], nodes[ 3 ]))
- myLastCreatedElems.Append(aMesh->AddFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ], nodes[ 3 ] ));
- break;
- default:
- if(itElem->second.back()->IsQuadratic()) {
- if(nbn==6) {
- if (!hasFreeLinks ||
- !aMesh->FindFace(nodes[0], nodes[2], nodes[4],
- nodes[1], nodes[3], nodes[5]) ) {
- myLastCreatedElems.Append(aMesh->AddFace(nodes[0], nodes[2], nodes[4],
- nodes[1], nodes[3], nodes[5]));
- }
- }
- else { // nbn==8
- if (!hasFreeLinks ||
- !aMesh->FindFace(nodes[0], nodes[2], nodes[4], nodes[6],
- nodes[1], nodes[3], nodes[5], nodes[7]) )
- myLastCreatedElems.Append(aMesh->AddFace(nodes[0], nodes[2], nodes[4], nodes[6],
- nodes[1], nodes[3], nodes[5], nodes[7]));
- }
- }
- else {
- vector<const SMDS_MeshNode*> polygon_nodes ( nodes, &nodes[nbn] );
- if (!hasFreeLinks || !aMesh->FindFace(polygon_nodes))
- myLastCreatedElems.Append(aMesh->AddPolygonalFace(polygon_nodes));
- }
- } // switch
+ // move node
- while ( srcElements.Length() < myLastCreatedElems.Length() )
- srcElements.Append( myLastCreatedElems.Last() );
- }
- } // loop on swept elements
+ const_cast< SMDS_MeshNode* >( theNode )->setXYZ(coord[0],coord[1],coord[2]);
}
//=======================================================================
-//function : RotationSweep
-//purpose :
+//function : centroidalSmooth
+//purpose : pulls theNode toward the element-area-weighted centroid of the
+// surrounding elements
//=======================================================================
-SMESH_MeshEditor::PGroupIDs
-SMESH_MeshEditor::RotationSweep(TIDSortedElemSet & theElems,
- const gp_Ax1& theAxis,
- const double theAngle,
- const int theNbSteps,
- const double theTol,
- const bool theMakeGroups,
- const bool theMakeWalls)
+void centroidalSmooth(const SMDS_MeshNode* theNode,
+ const Handle(Geom_Surface)& theSurface,
+ map< const SMDS_MeshNode*, gp_XY* >& theUVMap)
{
- myLastCreatedElems.Clear();
- myLastCreatedNodes.Clear();
-
- // source elements for each generated one
- SMESH_SequenceOfElemPtr srcElems, srcNodes;
-
- MESSAGE( "RotationSweep()");
- gp_Trsf aTrsf;
- aTrsf.SetRotation( theAxis, theAngle );
- gp_Trsf aTrsf2;
- aTrsf2.SetRotation( theAxis, theAngle/2. );
-
- gp_Lin aLine( theAxis );
- double aSqTol = theTol * theTol;
-
- SMESHDS_Mesh* aMesh = GetMeshDS();
+ gp_XYZ aNewXYZ(0.,0.,0.);
+ SMESH::Controls::Area anAreaFunc;
+ double totalArea = 0.;
+ int nbElems = 0;
- TNodeOfNodeListMap mapNewNodes;
- TElemOfVecOfNnlmiMap mapElemNewNodes;
- TElemOfElemListMap newElemsMap;
+ // compute new XYZ
- // loop on theElems
- TIDSortedElemSet::iterator itElem;
- for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ ) {
- const SMDS_MeshElement* elem = *itElem;
- if ( !elem || elem->GetType() == SMDSAbs_Volume )
- continue;
- vector<TNodeOfNodeListMapItr> & newNodesItVec = mapElemNewNodes[ elem ];
- newNodesItVec.reserve( elem->NbNodes() );
+ SMDS_ElemIteratorPtr elemIt = theNode->GetInverseElementIterator(SMDSAbs_Face);
+ while ( elemIt->more() )
+ {
+ const SMDS_MeshElement* elem = elemIt->next();
+ nbElems++;
- // loop on elem nodes
+ gp_XYZ elemCenter(0.,0.,0.);
+ SMESH::Controls::TSequenceOfXYZ aNodePoints;
SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- while ( itN->more() )
- {
- // check if a node has been already sweeped
- const SMDS_MeshNode* node = cast2Node( itN->next() );
- TNodeOfNodeListMapItr nIt = mapNewNodes.find( node );
- if ( nIt == mapNewNodes.end() ) {
- nIt = mapNewNodes.insert( make_pair( node, list<const SMDS_MeshNode*>() )).first;
- list<const SMDS_MeshNode*>& listNewNodes = nIt->second;
-
- // make new nodes
- gp_XYZ aXYZ( node->X(), node->Y(), node->Z() );
- double coord[3];
- aXYZ.Coord( coord[0], coord[1], coord[2] );
- bool isOnAxis = ( aLine.SquareDistance( aXYZ ) <= aSqTol );
- const SMDS_MeshNode * newNode = node;
- for ( int i = 0; i < theNbSteps; i++ ) {
- if ( !isOnAxis ) {
- if( elem->IsQuadratic() && !elem->IsMediumNode(node) ) {
- // create two nodes
- aTrsf2.Transforms( coord[0], coord[1], coord[2] );
- //aTrsf.Transforms( coord[0], coord[1], coord[2] );
- newNode = aMesh->AddNode( coord[0], coord[1], coord[2] );
- myLastCreatedNodes.Append(newNode);
- srcNodes.Append( node );
- listNewNodes.push_back( newNode );
- aTrsf2.Transforms( coord[0], coord[1], coord[2] );
- //aTrsf.Transforms( coord[0], coord[1], coord[2] );
- }
- else {
- aTrsf.Transforms( coord[0], coord[1], coord[2] );
- }
- newNode = aMesh->AddNode( coord[0], coord[1], coord[2] );
- myLastCreatedNodes.Append(newNode);
- srcNodes.Append( node );
- }
- listNewNodes.push_back( newNode );
- }
- }
- else {
- // if current elem is quadratic and current node is not medium
- // we have to check - may be it is needed to insert additional nodes
- if( elem->IsQuadratic() && !elem->IsMediumNode(node) ) {
- list< const SMDS_MeshNode* > & listNewNodes = nIt->second;
- if(listNewNodes.size()==theNbSteps) {
- listNewNodes.clear();
- // make new nodes
- gp_XYZ aXYZ( node->X(), node->Y(), node->Z() );
- double coord[3];
- aXYZ.Coord( coord[0], coord[1], coord[2] );
- const SMDS_MeshNode * newNode = node;
- for(int i = 0; i<theNbSteps; i++) {
- aTrsf2.Transforms( coord[0], coord[1], coord[2] );
- newNode = aMesh->AddNode( coord[0], coord[1], coord[2] );
- myLastCreatedNodes.Append(newNode);
- listNewNodes.push_back( newNode );
- srcNodes.Append( node );
- aTrsf2.Transforms( coord[0], coord[1], coord[2] );
- newNode = aMesh->AddNode( coord[0], coord[1], coord[2] );
- myLastCreatedNodes.Append(newNode);
- srcNodes.Append( node );
- listNewNodes.push_back( newNode );
- }
- }
- }
+ int nn = elem->NbNodes();
+ if(elem->IsQuadratic()) nn = nn/2;
+ int i=0;
+ //while ( itN->more() ) {
+ while ( i<nn ) {
+ const SMDS_MeshNode* aNode = static_cast<const SMDS_MeshNode*>( itN->next() );
+ i++;
+ gp_XYZ aP( aNode->X(), aNode->Y(), aNode->Z() );
+ aNodePoints.push_back( aP );
+ if ( !theSurface.IsNull() ) { // smooth in 2D
+ ASSERT( theUVMap.find( aNode ) != theUVMap.end() );
+ gp_XY* uv = theUVMap[ aNode ];
+ aP.SetCoord( uv->X(), uv->Y(), 0. );
}
- newNodesItVec.push_back( nIt );
- }
- // make new elements
- sweepElement( elem, newNodesItVec, newElemsMap[elem], theNbSteps, srcElems );
- }
-
- if ( theMakeWalls )
- makeWalls( mapNewNodes, newElemsMap, mapElemNewNodes, theElems, theNbSteps, srcElems );
-
- PGroupIDs newGroupIDs;
- if ( theMakeGroups )
- newGroupIDs = generateGroups( srcNodes, srcElems, "rotated");
-
- return newGroupIDs;
-}
-
-
-//=======================================================================
-//function : CreateNode
-//purpose :
-//=======================================================================
-const SMDS_MeshNode* SMESH_MeshEditor::CreateNode(const double x,
- const double y,
- const double z,
- const double tolnode,
- SMESH_SequenceOfNode& aNodes)
-{
- myLastCreatedElems.Clear();
- myLastCreatedNodes.Clear();
-
- gp_Pnt P1(x,y,z);
- SMESHDS_Mesh * aMesh = myMesh->GetMeshDS();
-
- // try to search in sequence of existing nodes
- // if aNodes.Length()>0 we 'nave to use given sequence
- // else - use all nodes of mesh
- if(aNodes.Length()>0) {
- int i;
- for(i=1; i<=aNodes.Length(); i++) {
- gp_Pnt P2(aNodes.Value(i)->X(),aNodes.Value(i)->Y(),aNodes.Value(i)->Z());
- if(P1.Distance(P2)<tolnode)
- return aNodes.Value(i);
+ elemCenter += aP;
}
+ double elemArea = anAreaFunc.GetValue( aNodePoints );
+ totalArea += elemArea;
+ elemCenter /= nn;
+ aNewXYZ += elemCenter * elemArea;
}
- else {
- SMDS_NodeIteratorPtr itn = aMesh->nodesIterator();
- while(itn->more()) {
- const SMDS_MeshNode* aN = static_cast<const SMDS_MeshNode*> (itn->next());
- gp_Pnt P2(aN->X(),aN->Y(),aN->Z());
- if(P1.Distance(P2)<tolnode)
- return aN;
- }
+ aNewXYZ /= totalArea;
+ if ( !theSurface.IsNull() ) {
+ theUVMap[ theNode ]->SetCoord( aNewXYZ.X(), aNewXYZ.Y() );
+ aNewXYZ = theSurface->Value( aNewXYZ.X(), aNewXYZ.Y() ).XYZ();
}
- // create new node and return it
- const SMDS_MeshNode* NewNode = aMesh->AddNode(x,y,z);
- myLastCreatedNodes.Append(NewNode);
- return NewNode;
-}
+ // move node
+ const_cast< SMDS_MeshNode* >( theNode )->setXYZ(aNewXYZ.X(),aNewXYZ.Y(),aNewXYZ.Z());
+}
//=======================================================================
-//function : ExtrusionSweep
-//purpose :
+//function : getClosestUV
+//purpose : return UV of closest projection
//=======================================================================
-SMESH_MeshEditor::PGroupIDs
-SMESH_MeshEditor::ExtrusionSweep (TIDSortedElemSet & theElems,
- const gp_Vec& theStep,
- const int theNbSteps,
- TElemOfElemListMap& newElemsMap,
- const bool theMakeGroups,
- const int theFlags,
- const double theTolerance)
+static bool getClosestUV (Extrema_GenExtPS& projector,
+ const gp_Pnt& point,
+ gp_XY & result)
{
- ExtrusParam aParams;
- aParams.myDir = gp_Dir(theStep);
- aParams.myNodes.Clear();
- aParams.mySteps = new TColStd_HSequenceOfReal;
- int i;
- for(i=1; i<=theNbSteps; i++)
- aParams.mySteps->Append(theStep.Magnitude());
-
- return
- ExtrusionSweep(theElems,aParams,newElemsMap,theMakeGroups,theFlags,theTolerance);
+ projector.Perform( point );
+ if ( projector.IsDone() ) {
+ double u, v, minVal = DBL_MAX;
+ for ( int i = projector.NbExt(); i > 0; i-- )
+#if OCC_VERSION_LARGE > 0x06040000 // Porting to OCCT6.5.1
+ if ( projector.SquareDistance( i ) < minVal ) {
+ minVal = projector.SquareDistance( i );
+#else
+ if ( projector.Value( i ) < minVal ) {
+ minVal = projector.Value( i );
+#endif
+ projector.Point( i ).Parameter( u, v );
+ }
+ result.SetCoord( u, v );
+ return true;
+ }
+ return false;
}
-
//=======================================================================
-//function : ExtrusionSweep
-//purpose :
+//function : Smooth
+//purpose : Smooth theElements during theNbIterations or until a worst
+// element has aspect ratio <= theTgtAspectRatio.
+// Aspect Ratio varies in range [1.0, inf].
+// If theElements is empty, the whole mesh is smoothed.
+// theFixedNodes contains additionally fixed nodes. Nodes built
+// on edges and boundary nodes are always fixed.
//=======================================================================
-SMESH_MeshEditor::PGroupIDs
-SMESH_MeshEditor::ExtrusionSweep (TIDSortedElemSet & theElems,
- ExtrusParam& theParams,
- TElemOfElemListMap& newElemsMap,
- const bool theMakeGroups,
- const int theFlags,
- const double theTolerance)
+void SMESH_MeshEditor::Smooth (TIDSortedElemSet & theElems,
+ set<const SMDS_MeshNode*> & theFixedNodes,
+ const SmoothMethod theSmoothMethod,
+ const int theNbIterations,
+ double theTgtAspectRatio,
+ const bool the2D)
{
myLastCreatedElems.Clear();
myLastCreatedNodes.Clear();
- // source elements for each generated one
- SMESH_SequenceOfElemPtr srcElems, srcNodes;
+ MESSAGE((theSmoothMethod==LAPLACIAN ? "LAPLACIAN" : "CENTROIDAL") << "--::Smooth()");
- SMESHDS_Mesh* aMesh = GetMeshDS();
+ if ( theTgtAspectRatio < 1.0 )
+ theTgtAspectRatio = 1.0;
- int nbsteps = theParams.mySteps->Length();
+ const double disttol = 1.e-16;
- TNodeOfNodeListMap mapNewNodes;
- //TNodeOfNodeVecMap mapNewNodes;
- TElemOfVecOfNnlmiMap mapElemNewNodes;
- //TElemOfVecOfMapNodesMap mapElemNewNodes;
+ SMESH::Controls::AspectRatio aQualityFunc;
- // loop on theElems
- TIDSortedElemSet::iterator itElem;
- for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ ) {
- // check element type
- const SMDS_MeshElement* elem = *itElem;
- if ( !elem || elem->GetType() == SMDSAbs_Volume )
- continue;
+ SMESHDS_Mesh* aMesh = GetMeshDS();
- vector<TNodeOfNodeListMapItr> & newNodesItVec = mapElemNewNodes[ elem ];
- //vector<TNodeOfNodeVecMapItr> & newNodesItVec = mapElemNewNodes[ elem ];
- newNodesItVec.reserve( elem->NbNodes() );
+ if ( theElems.empty() ) {
+ // add all faces to theElems
+ SMDS_FaceIteratorPtr fIt = aMesh->facesIterator();
+ while ( fIt->more() ) {
+ const SMDS_MeshElement* face = fIt->next();
+ theElems.insert( face );
+ }
+ }
+ // get all face ids theElems are on
+ set< int > faceIdSet;
+ TIDSortedElemSet::iterator itElem;
+ if ( the2D )
+ for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ ) {
+ int fId = FindShape( *itElem );
+ // check that corresponding submesh exists and a shape is face
+ if (fId &&
+ faceIdSet.find( fId ) == faceIdSet.end() &&
+ aMesh->MeshElements( fId )) {
+ TopoDS_Shape F = aMesh->IndexToShape( fId );
+ if ( !F.IsNull() && F.ShapeType() == TopAbs_FACE )
+ faceIdSet.insert( fId );
+ }
+ }
+ faceIdSet.insert( 0 ); // to smooth elements that are not on any TopoDS_Face
- // loop on elem nodes
- SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- while ( itN->more() )
- {
- // check if a node has been already sweeped
- const SMDS_MeshNode* node = cast2Node( itN->next() );
- TNodeOfNodeListMap::iterator nIt = mapNewNodes.find( node );
- //TNodeOfNodeVecMap::iterator nIt = mapNewNodes.find( node );
- if ( nIt == mapNewNodes.end() ) {
- nIt = mapNewNodes.insert( make_pair( node, list<const SMDS_MeshNode*>() )).first;
- //nIt = mapNewNodes.insert( make_pair( node, vector<const SMDS_MeshNode*>() )).first;
- list<const SMDS_MeshNode*>& listNewNodes = nIt->second;
- //vector<const SMDS_MeshNode*>& vecNewNodes = nIt->second;
- //vecNewNodes.reserve(nbsteps);
+ // ===============================================
+ // smooth elements on each TopoDS_Face separately
+ // ===============================================
- // make new nodes
- double coord[] = { node->X(), node->Y(), node->Z() };
- //int nbsteps = theParams.mySteps->Length();
- for ( int i = 0; i < nbsteps; i++ ) {
- if( elem->IsQuadratic() && !elem->IsMediumNode(node) ) {
- // create additional node
- double x = coord[0] + theParams.myDir.X()*theParams.mySteps->Value(i+1)/2.;
- double y = coord[1] + theParams.myDir.Y()*theParams.mySteps->Value(i+1)/2.;
- double z = coord[2] + theParams.myDir.Z()*theParams.mySteps->Value(i+1)/2.;
- if( theFlags & EXTRUSION_FLAG_SEW ) {
- const SMDS_MeshNode * newNode = CreateNode(x, y, z,
- theTolerance, theParams.myNodes);
- listNewNodes.push_back( newNode );
- }
- else {
- const SMDS_MeshNode * newNode = aMesh->AddNode(x, y, z);
- myLastCreatedNodes.Append(newNode);
- srcNodes.Append( node );
- listNewNodes.push_back( newNode );
+ set< int >::reverse_iterator fId = faceIdSet.rbegin(); // treate 0 fId at the end
+ for ( ; fId != faceIdSet.rend(); ++fId ) {
+ // get face surface and submesh
+ Handle(Geom_Surface) surface;
+ SMESHDS_SubMesh* faceSubMesh = 0;
+ TopoDS_Face face;
+ double fToler2 = 0, f,l;
+ double u1 = 0, u2 = 0, v1 = 0, v2 = 0;
+ bool isUPeriodic = false, isVPeriodic = false;
+ if ( *fId ) {
+ face = TopoDS::Face( aMesh->IndexToShape( *fId ));
+ surface = BRep_Tool::Surface( face );
+ faceSubMesh = aMesh->MeshElements( *fId );
+ fToler2 = BRep_Tool::Tolerance( face );
+ fToler2 *= fToler2 * 10.;
+ isUPeriodic = surface->IsUPeriodic();
+ if ( isUPeriodic )
+ surface->UPeriod();
+ isVPeriodic = surface->IsVPeriodic();
+ if ( isVPeriodic )
+ surface->VPeriod();
+ surface->Bounds( u1, u2, v1, v2 );
+ }
+ // ---------------------------------------------------------
+ // for elements on a face, find movable and fixed nodes and
+ // compute UV for them
+ // ---------------------------------------------------------
+ bool checkBoundaryNodes = false;
+ bool isQuadratic = false;
+ set<const SMDS_MeshNode*> setMovableNodes;
+ map< const SMDS_MeshNode*, gp_XY* > uvMap, uvMap2;
+ list< gp_XY > listUV; // uvs the 2 uvMaps refer to
+ list< const SMDS_MeshElement* > elemsOnFace;
+
+ Extrema_GenExtPS projector;
+ GeomAdaptor_Surface surfAdaptor;
+ if ( !surface.IsNull() ) {
+ surfAdaptor.Load( surface );
+ projector.Initialize( surfAdaptor, 20,20, 1e-5,1e-5 );
+ }
+ int nbElemOnFace = 0;
+ itElem = theElems.begin();
+ // loop on not yet smoothed elements: look for elems on a face
+ while ( itElem != theElems.end() ) {
+ if ( faceSubMesh && nbElemOnFace == faceSubMesh->NbElements() )
+ break; // all elements found
+
+ const SMDS_MeshElement* elem = *itElem;
+ if ( !elem || elem->GetType() != SMDSAbs_Face || elem->NbNodes() < 3 ||
+ ( faceSubMesh && !faceSubMesh->Contains( elem ))) {
+ ++itElem;
+ continue;
+ }
+ elemsOnFace.push_back( elem );
+ theElems.erase( itElem++ );
+ nbElemOnFace++;
+
+ if ( !isQuadratic )
+ isQuadratic = elem->IsQuadratic();
+
+ // get movable nodes of elem
+ const SMDS_MeshNode* node;
+ SMDS_TypeOfPosition posType;
+ SMDS_ElemIteratorPtr itN = elem->nodesIterator();
+ int nn = 0, nbn = elem->NbNodes();
+ if(elem->IsQuadratic())
+ nbn = nbn/2;
+ while ( nn++ < nbn ) {
+ node = static_cast<const SMDS_MeshNode*>( itN->next() );
+ const SMDS_PositionPtr& pos = node->GetPosition();
+ posType = pos ? pos->GetTypeOfPosition() : SMDS_TOP_3DSPACE;
+ if (posType != SMDS_TOP_EDGE &&
+ posType != SMDS_TOP_VERTEX &&
+ theFixedNodes.find( node ) == theFixedNodes.end())
+ {
+ // check if all faces around the node are on faceSubMesh
+ // because a node on edge may be bound to face
+ SMDS_ElemIteratorPtr eIt = node->GetInverseElementIterator(SMDSAbs_Face);
+ bool all = true;
+ if ( faceSubMesh ) {
+ while ( eIt->more() && all ) {
+ const SMDS_MeshElement* e = eIt->next();
+ all = faceSubMesh->Contains( e );
}
}
- //aTrsf.Transforms( coord[0], coord[1], coord[2] );
- coord[0] = coord[0] + theParams.myDir.X()*theParams.mySteps->Value(i+1);
- coord[1] = coord[1] + theParams.myDir.Y()*theParams.mySteps->Value(i+1);
- coord[2] = coord[2] + theParams.myDir.Z()*theParams.mySteps->Value(i+1);
- if( theFlags & EXTRUSION_FLAG_SEW ) {
- const SMDS_MeshNode * newNode = CreateNode(coord[0], coord[1], coord[2],
- theTolerance, theParams.myNodes);
- listNewNodes.push_back( newNode );
- //vecNewNodes[i]=newNode;
+ if ( all )
+ setMovableNodes.insert( node );
+ else
+ checkBoundaryNodes = true;
+ }
+ if ( posType == SMDS_TOP_3DSPACE )
+ checkBoundaryNodes = true;
+ }
+
+ if ( surface.IsNull() )
+ continue;
+
+ // get nodes to check UV
+ list< const SMDS_MeshNode* > uvCheckNodes;
+ itN = elem->nodesIterator();
+ nn = 0; nbn = elem->NbNodes();
+ if(elem->IsQuadratic())
+ nbn = nbn/2;
+ while ( nn++ < nbn ) {
+ node = static_cast<const SMDS_MeshNode*>( itN->next() );
+ if ( uvMap.find( node ) == uvMap.end() )
+ uvCheckNodes.push_back( node );
+ // add nodes of elems sharing node
+ // SMDS_ElemIteratorPtr eIt = node->GetInverseElementIterator(SMDSAbs_Face);
+ // while ( eIt->more() ) {
+ // const SMDS_MeshElement* e = eIt->next();
+ // if ( e != elem ) {
+ // SMDS_ElemIteratorPtr nIt = e->nodesIterator();
+ // while ( nIt->more() ) {
+ // const SMDS_MeshNode* n =
+ // static_cast<const SMDS_MeshNode*>( nIt->next() );
+ // if ( uvMap.find( n ) == uvMap.end() )
+ // uvCheckNodes.push_back( n );
+ // }
+ // }
+ // }
+ }
+ // check UV on face
+ list< const SMDS_MeshNode* >::iterator n = uvCheckNodes.begin();
+ for ( ; n != uvCheckNodes.end(); ++n ) {
+ node = *n;
+ gp_XY uv( 0, 0 );
+ const SMDS_PositionPtr& pos = node->GetPosition();
+ posType = pos ? pos->GetTypeOfPosition() : SMDS_TOP_3DSPACE;
+ // get existing UV
+ switch ( posType ) {
+ case SMDS_TOP_FACE: {
+ SMDS_FacePosition* fPos = ( SMDS_FacePosition* ) pos;
+ uv.SetCoord( fPos->GetUParameter(), fPos->GetVParameter() );
+ break;
+ }
+ case SMDS_TOP_EDGE: {
+ TopoDS_Shape S = aMesh->IndexToShape( node->getshapeId() );
+ Handle(Geom2d_Curve) pcurve;
+ if ( !S.IsNull() && S.ShapeType() == TopAbs_EDGE )
+ pcurve = BRep_Tool::CurveOnSurface( TopoDS::Edge( S ), face, f,l );
+ if ( !pcurve.IsNull() ) {
+ double u = (( SMDS_EdgePosition* ) pos )->GetUParameter();
+ uv = pcurve->Value( u ).XY();
+ }
+ break;
+ }
+ case SMDS_TOP_VERTEX: {
+ TopoDS_Shape S = aMesh->IndexToShape( node->getshapeId() );
+ if ( !S.IsNull() && S.ShapeType() == TopAbs_VERTEX )
+ uv = BRep_Tool::Parameters( TopoDS::Vertex( S ), face ).XY();
+ break;
+ }
+ default:;
+ }
+ // check existing UV
+ bool project = true;
+ gp_Pnt pNode ( node->X(), node->Y(), node->Z() );
+ double dist1 = DBL_MAX, dist2 = 0;
+ if ( posType != SMDS_TOP_3DSPACE ) {
+ dist1 = pNode.SquareDistance( surface->Value( uv.X(), uv.Y() ));
+ project = dist1 > fToler2;
+ }
+ if ( project ) { // compute new UV
+ gp_XY newUV;
+ if ( !getClosestUV( projector, pNode, newUV )) {
+ MESSAGE("Node Projection Failed " << node);
}
else {
- const SMDS_MeshNode * newNode = aMesh->AddNode( coord[0], coord[1], coord[2] );
- myLastCreatedNodes.Append(newNode);
- srcNodes.Append( node );
- listNewNodes.push_back( newNode );
- //vecNewNodes[i]=newNode;
+ if ( isUPeriodic )
+ newUV.SetX( ElCLib::InPeriod( newUV.X(), u1, u2 ));
+ if ( isVPeriodic )
+ newUV.SetY( ElCLib::InPeriod( newUV.Y(), v1, v2 ));
+ // check new UV
+ if ( posType != SMDS_TOP_3DSPACE )
+ dist2 = pNode.SquareDistance( surface->Value( newUV.X(), newUV.Y() ));
+ if ( dist2 < dist1 )
+ uv = newUV;
}
}
+ // store UV in the map
+ listUV.push_back( uv );
+ uvMap.insert( make_pair( node, &listUV.back() ));
}
- else {
- // if current elem is quadratic and current node is not medium
- // we have to check - may be it is needed to insert additional nodes
- if( elem->IsQuadratic() && !elem->IsMediumNode(node) ) {
- list< const SMDS_MeshNode* > & listNewNodes = nIt->second;
- if(listNewNodes.size()==nbsteps) {
- listNewNodes.clear();
- double coord[] = { node->X(), node->Y(), node->Z() };
- for ( int i = 0; i < nbsteps; i++ ) {
- double x = coord[0] + theParams.myDir.X()*theParams.mySteps->Value(i+1);
- double y = coord[1] + theParams.myDir.Y()*theParams.mySteps->Value(i+1);
- double z = coord[2] + theParams.myDir.Z()*theParams.mySteps->Value(i+1);
- if( theFlags & EXTRUSION_FLAG_SEW ) {
- const SMDS_MeshNode * newNode = CreateNode(x, y, z,
- theTolerance, theParams.myNodes);
- listNewNodes.push_back( newNode );
- }
- else {
- const SMDS_MeshNode * newNode = aMesh->AddNode(x, y, z);
- myLastCreatedNodes.Append(newNode);
- srcNodes.Append( node );
- listNewNodes.push_back( newNode );
- }
- coord[0] = coord[0] + theParams.myDir.X()*theParams.mySteps->Value(i+1);
- coord[1] = coord[1] + theParams.myDir.Y()*theParams.mySteps->Value(i+1);
- coord[2] = coord[2] + theParams.myDir.Z()*theParams.mySteps->Value(i+1);
- if( theFlags & EXTRUSION_FLAG_SEW ) {
- const SMDS_MeshNode * newNode = CreateNode(coord[0], coord[1], coord[2],
- theTolerance, theParams.myNodes);
- listNewNodes.push_back( newNode );
- }
- else {
- const SMDS_MeshNode * newNode = aMesh->AddNode( coord[0], coord[1], coord[2] );
- myLastCreatedNodes.Append(newNode);
- srcNodes.Append( node );
- listNewNodes.push_back( newNode );
- }
- }
- }
+ } // loop on not yet smoothed elements
+
+ if ( !faceSubMesh || nbElemOnFace != faceSubMesh->NbElements() )
+ checkBoundaryNodes = true;
+
+ // fix nodes on mesh boundary
+
+ if ( checkBoundaryNodes ) {
+ map< SMESH_TLink, int > linkNbMap; // how many times a link encounters in elemsOnFace
+ map< SMESH_TLink, int >::iterator link_nb;
+ // put all elements links to linkNbMap
+ list< const SMDS_MeshElement* >::iterator elemIt = elemsOnFace.begin();
+ for ( ; elemIt != elemsOnFace.end(); ++elemIt ) {
+ const SMDS_MeshElement* elem = (*elemIt);
+ int nbn = elem->NbCornerNodes();
+ // loop on elem links: insert them in linkNbMap
+ for ( int iN = 0; iN < nbn; ++iN ) {
+ const SMDS_MeshNode* n1 = elem->GetNode( iN );
+ const SMDS_MeshNode* n2 = elem->GetNode(( iN+1 ) % nbn);
+ SMESH_TLink link( n1, n2 );
+ link_nb = linkNbMap.insert( make_pair( link, 0 )).first;
+ link_nb->second++;
+ }
+ }
+ // remove nodes that are in links encountered only once from setMovableNodes
+ for ( link_nb = linkNbMap.begin(); link_nb != linkNbMap.end(); ++link_nb ) {
+ if ( link_nb->second == 1 ) {
+ setMovableNodes.erase( link_nb->first.node1() );
+ setMovableNodes.erase( link_nb->first.node2() );
}
}
- newNodesItVec.push_back( nIt );
}
- // make new elements
- sweepElement( elem, newNodesItVec, newElemsMap[elem], nbsteps, srcElems );
- }
- if( theFlags & EXTRUSION_FLAG_BOUNDARY ) {
- makeWalls( mapNewNodes, newElemsMap, mapElemNewNodes, theElems, nbsteps, srcElems );
- }
- PGroupIDs newGroupIDs;
- if ( theMakeGroups )
- newGroupIDs = generateGroups( srcNodes, srcElems, "extruded");
-
- return newGroupIDs;
-}
-
-
-//=======================================================================
-//class : SMESH_MeshEditor_PathPoint
-//purpose : auxiliary class
-//=======================================================================
-class SMESH_MeshEditor_PathPoint {
-public:
- SMESH_MeshEditor_PathPoint() {
- myPnt.SetCoord(99., 99., 99.);
- myTgt.SetCoord(1.,0.,0.);
- myAngle=0.;
- myPrm=0.;
- }
- void SetPnt(const gp_Pnt& aP3D){
- myPnt=aP3D;
- }
- void SetTangent(const gp_Dir& aTgt){
- myTgt=aTgt;
- }
- void SetAngle(const double& aBeta){
- myAngle=aBeta;
- }
- void SetParameter(const double& aPrm){
- myPrm=aPrm;
- }
- const gp_Pnt& Pnt()const{
- return myPnt;
- }
- const gp_Dir& Tangent()const{
- return myTgt;
- }
- double Angle()const{
- return myAngle;
- }
- double Parameter()const{
- return myPrm;
- }
-
-protected:
- gp_Pnt myPnt;
- gp_Dir myTgt;
- double myAngle;
- double myPrm;
-};
-
-//=======================================================================
-//function : ExtrusionAlongTrack
-//purpose :
-//=======================================================================
-SMESH_MeshEditor::Extrusion_Error
- SMESH_MeshEditor::ExtrusionAlongTrack (TIDSortedElemSet & theElements,
- SMESH_subMesh* theTrack,
- const SMDS_MeshNode* theN1,
- const bool theHasAngles,
- list<double>& theAngles,
- const bool theHasRefPoint,
- const gp_Pnt& theRefPoint,
- const bool theMakeGroups)
-{
- myLastCreatedElems.Clear();
- myLastCreatedNodes.Clear();
-
- // source elements for each generated one
- SMESH_SequenceOfElemPtr srcElems, srcNodes;
-
- int j, aNbTP, aNbE, aNb;
- double aT1, aT2, aT, aAngle, aX, aY, aZ;
- std::list<double> aPrms;
- std::list<double>::iterator aItD;
- TIDSortedElemSet::iterator itElem;
-
- Standard_Real aTx1, aTx2, aL2, aTolVec, aTolVec2;
- gp_Pnt aP3D, aV0;
- gp_Vec aVec;
- gp_XYZ aGC;
- Handle(Geom_Curve) aC3D;
- TopoDS_Edge aTrackEdge;
- TopoDS_Vertex aV1, aV2;
-
- SMDS_ElemIteratorPtr aItE;
- SMDS_NodeIteratorPtr aItN;
- SMDSAbs_ElementType aTypeE;
-
- TNodeOfNodeListMap mapNewNodes;
- TElemOfVecOfNnlmiMap mapElemNewNodes;
- TElemOfElemListMap newElemsMap;
-
- aTolVec=1.e-7;
- aTolVec2=aTolVec*aTolVec;
-
- // 1. Check data
- aNbE = theElements.size();
- // nothing to do
- if ( !aNbE )
- return EXTR_NO_ELEMENTS;
+ // -----------------------------------------------------
+ // for nodes on seam edge, compute one more UV ( uvMap2 );
+ // find movable nodes linked to nodes on seam and which
+ // are to be smoothed using the second UV ( uvMap2 )
+ // -----------------------------------------------------
- // 1.1 Track Pattern
- ASSERT( theTrack );
+ set<const SMDS_MeshNode*> nodesNearSeam; // to smooth using uvMap2
+ if ( !surface.IsNull() ) {
+ TopExp_Explorer eExp( face, TopAbs_EDGE );
+ for ( ; eExp.More(); eExp.Next() ) {
+ TopoDS_Edge edge = TopoDS::Edge( eExp.Current() );
+ if ( !BRep_Tool::IsClosed( edge, face ))
+ continue;
+ SMESHDS_SubMesh* sm = aMesh->MeshElements( edge );
+ if ( !sm ) continue;
+ // find out which parameter varies for a node on seam
+ double f,l;
+ gp_Pnt2d uv1, uv2;
+ Handle(Geom2d_Curve) pcurve = BRep_Tool::CurveOnSurface( edge, face, f, l );
+ if ( pcurve.IsNull() ) continue;
+ uv1 = pcurve->Value( f );
+ edge.Reverse();
+ pcurve = BRep_Tool::CurveOnSurface( edge, face, f, l );
+ if ( pcurve.IsNull() ) continue;
+ uv2 = pcurve->Value( f );
+ int iPar = Abs( uv1.X() - uv2.X() ) > Abs( uv1.Y() - uv2.Y() ) ? 1 : 2;
+ // assure uv1 < uv2
+ if ( uv1.Coord( iPar ) > uv2.Coord( iPar )) {
+ gp_Pnt2d tmp = uv1; uv1 = uv2; uv2 = tmp;
+ }
+ // get nodes on seam and its vertices
+ list< const SMDS_MeshNode* > seamNodes;
+ SMDS_NodeIteratorPtr nSeamIt = sm->GetNodes();
+ while ( nSeamIt->more() ) {
+ const SMDS_MeshNode* node = nSeamIt->next();
+ if ( !isQuadratic || !IsMedium( node ))
+ seamNodes.push_back( node );
+ }
+ TopExp_Explorer vExp( edge, TopAbs_VERTEX );
+ for ( ; vExp.More(); vExp.Next() ) {
+ sm = aMesh->MeshElements( vExp.Current() );
+ if ( sm ) {
+ nSeamIt = sm->GetNodes();
+ while ( nSeamIt->more() )
+ seamNodes.push_back( nSeamIt->next() );
+ }
+ }
+ // loop on nodes on seam
+ list< const SMDS_MeshNode* >::iterator noSeIt = seamNodes.begin();
+ for ( ; noSeIt != seamNodes.end(); ++noSeIt ) {
+ const SMDS_MeshNode* nSeam = *noSeIt;
+ map< const SMDS_MeshNode*, gp_XY* >::iterator n_uv = uvMap.find( nSeam );
+ if ( n_uv == uvMap.end() )
+ continue;
+ // set the first UV
+ n_uv->second->SetCoord( iPar, uv1.Coord( iPar ));
+ // set the second UV
+ listUV.push_back( *n_uv->second );
+ listUV.back().SetCoord( iPar, uv2.Coord( iPar ));
+ if ( uvMap2.empty() )
+ uvMap2 = uvMap; // copy the uvMap contents
+ uvMap2[ nSeam ] = &listUV.back();
- SMESHDS_SubMesh* pSubMeshDS=theTrack->GetSubMeshDS();
+ // collect movable nodes linked to ones on seam in nodesNearSeam
+ SMDS_ElemIteratorPtr eIt = nSeam->GetInverseElementIterator(SMDSAbs_Face);
+ while ( eIt->more() ) {
+ const SMDS_MeshElement* e = eIt->next();
+ int nbUseMap1 = 0, nbUseMap2 = 0;
+ SMDS_ElemIteratorPtr nIt = e->nodesIterator();
+ int nn = 0, nbn = e->NbNodes();
+ if(e->IsQuadratic()) nbn = nbn/2;
+ while ( nn++ < nbn )
+ {
+ const SMDS_MeshNode* n =
+ static_cast<const SMDS_MeshNode*>( nIt->next() );
+ if (n == nSeam ||
+ setMovableNodes.find( n ) == setMovableNodes.end() )
+ continue;
+ // add only nodes being closer to uv2 than to uv1
+ gp_Pnt pMid (0.5 * ( n->X() + nSeam->X() ),
+ 0.5 * ( n->Y() + nSeam->Y() ),
+ 0.5 * ( n->Z() + nSeam->Z() ));
+ gp_XY uv;
+ getClosestUV( projector, pMid, uv );
+ if ( uv.Coord( iPar ) > uvMap[ n ]->Coord( iPar ) ) {
+ nodesNearSeam.insert( n );
+ nbUseMap2++;
+ }
+ else
+ nbUseMap1++;
+ }
+ // for centroidalSmooth all element nodes must
+ // be on one side of a seam
+ if ( theSmoothMethod == CENTROIDAL && nbUseMap1 && nbUseMap2 ) {
+ SMDS_ElemIteratorPtr nIt = e->nodesIterator();
+ nn = 0;
+ while ( nn++ < nbn ) {
+ const SMDS_MeshNode* n =
+ static_cast<const SMDS_MeshNode*>( nIt->next() );
+ setMovableNodes.erase( n );
+ }
+ }
+ }
+ } // loop on nodes on seam
+ } // loop on edge of a face
+ } // if ( !face.IsNull() )
- aItE = pSubMeshDS->GetElements();
- while ( aItE->more() ) {
- const SMDS_MeshElement* pE = aItE->next();
- aTypeE = pE->GetType();
- // Pattern must contain links only
- if ( aTypeE != SMDSAbs_Edge )
- return EXTR_PATH_NOT_EDGE;
- }
+ if ( setMovableNodes.empty() ) {
+ MESSAGE( "Face id : " << *fId << " - NO SMOOTHING: no nodes to move!!!");
+ continue; // goto next face
+ }
- const TopoDS_Shape& aS = theTrack->GetSubShape();
- // Sub shape for the Pattern must be an Edge
- if ( aS.ShapeType() != TopAbs_EDGE )
- return EXTR_BAD_PATH_SHAPE;
+ // -------------
+ // SMOOTHING //
+ // -------------
- aTrackEdge = TopoDS::Edge( aS );
- // the Edge must not be degenerated
- if ( BRep_Tool::Degenerated( aTrackEdge ) )
- return EXTR_BAD_PATH_SHAPE;
+ int it = -1;
+ double maxRatio = -1., maxDisplacement = -1.;
+ set<const SMDS_MeshNode*>::iterator nodeToMove;
+ for ( it = 0; it < theNbIterations; it++ ) {
+ maxDisplacement = 0.;
+ nodeToMove = setMovableNodes.begin();
+ for ( ; nodeToMove != setMovableNodes.end(); nodeToMove++ ) {
+ const SMDS_MeshNode* node = (*nodeToMove);
+ gp_XYZ aPrevPos ( node->X(), node->Y(), node->Z() );
- TopExp::Vertices( aTrackEdge, aV1, aV2 );
- aT1=BRep_Tool::Parameter( aV1, aTrackEdge );
- aT2=BRep_Tool::Parameter( aV2, aTrackEdge );
+ // smooth
+ bool map2 = ( nodesNearSeam.find( node ) != nodesNearSeam.end() );
+ if ( theSmoothMethod == LAPLACIAN )
+ laplacianSmooth( node, surface, map2 ? uvMap2 : uvMap );
+ else
+ centroidalSmooth( node, surface, map2 ? uvMap2 : uvMap );
- aItN = theTrack->GetFather()->GetSubMesh( aV1 )->GetSubMeshDS()->GetNodes();
- const SMDS_MeshNode* aN1 = aItN->next();
+ // node displacement
+ gp_XYZ aNewPos ( node->X(), node->Y(), node->Z() );
+ Standard_Real aDispl = (aPrevPos - aNewPos).SquareModulus();
+ if ( aDispl > maxDisplacement )
+ maxDisplacement = aDispl;
+ }
+ // no node movement => exit
+ //if ( maxDisplacement < 1.e-16 ) {
+ if ( maxDisplacement < disttol ) {
+ MESSAGE("-- no node movement --");
+ break;
+ }
- aItN = theTrack->GetFather()->GetSubMesh( aV2 )->GetSubMeshDS()->GetNodes();
- const SMDS_MeshNode* aN2 = aItN->next();
+ // check elements quality
+ maxRatio = 0;
+ list< const SMDS_MeshElement* >::iterator elemIt = elemsOnFace.begin();
+ for ( ; elemIt != elemsOnFace.end(); ++elemIt ) {
+ const SMDS_MeshElement* elem = (*elemIt);
+ if ( !elem || elem->GetType() != SMDSAbs_Face )
+ continue;
+ SMESH::Controls::TSequenceOfXYZ aPoints;
+ if ( aQualityFunc.GetPoints( elem, aPoints )) {
+ double aValue = aQualityFunc.GetValue( aPoints );
+ if ( aValue > maxRatio )
+ maxRatio = aValue;
+ }
+ }
+ if ( maxRatio <= theTgtAspectRatio ) {
+ MESSAGE("-- quality achived --");
+ break;
+ }
+ if (it+1 == theNbIterations) {
+ MESSAGE("-- Iteration limit exceeded --");
+ }
+ } // smoothing iterations
- // starting node must be aN1 or aN2
- if ( !( aN1 == theN1 || aN2 == theN1 ) )
- return EXTR_BAD_STARTING_NODE;
+ MESSAGE(" Face id: " << *fId <<
+ " Nb iterstions: " << it <<
+ " Displacement: " << maxDisplacement <<
+ " Aspect Ratio " << maxRatio);
- aNbTP = pSubMeshDS->NbNodes() + 2;
+ // ---------------------------------------
+ // new nodes positions are computed,
+ // record movement in DS and set new UV
+ // ---------------------------------------
+ nodeToMove = setMovableNodes.begin();
+ for ( ; nodeToMove != setMovableNodes.end(); nodeToMove++ ) {
+ SMDS_MeshNode* node = const_cast< SMDS_MeshNode* > (*nodeToMove);
+ aMesh->MoveNode( node, node->X(), node->Y(), node->Z() );
+ map< const SMDS_MeshNode*, gp_XY* >::iterator node_uv = uvMap.find( node );
+ if ( node_uv != uvMap.end() ) {
+ gp_XY* uv = node_uv->second;
+ node->SetPosition
+ ( SMDS_PositionPtr( new SMDS_FacePosition( uv->X(), uv->Y() )));
+ }
+ }
- // 1.2. Angles
- vector<double> aAngles( aNbTP );
-
- for ( j=0; j < aNbTP; ++j ) {
- aAngles[j] = 0.;
- }
-
- if ( theHasAngles ) {
- aItD = theAngles.begin();
- for ( j=1; (aItD != theAngles.end()) && (j<aNbTP); ++aItD, ++j ) {
- aAngle = *aItD;
- aAngles[j] = aAngle;
- }
- }
-
- // 2. Collect parameters on the track edge
- aPrms.push_back( aT1 );
- aPrms.push_back( aT2 );
-
- aItN = pSubMeshDS->GetNodes();
- while ( aItN->more() ) {
- const SMDS_MeshNode* pNode = aItN->next();
- const SMDS_EdgePosition* pEPos =
- static_cast<const SMDS_EdgePosition*>( pNode->GetPosition().get() );
- aT = pEPos->GetUParameter();
- aPrms.push_back( aT );
- }
-
- // sort parameters
- aPrms.sort();
- if ( aN1 == theN1 ) {
- if ( aT1 > aT2 ) {
- aPrms.reverse();
- }
- }
- else {
- if ( aT2 > aT1 ) {
- aPrms.reverse();
+ // move medium nodes of quadratic elements
+ if ( isQuadratic )
+ {
+ SMESH_MesherHelper helper( *GetMesh() );
+ if ( !face.IsNull() )
+ helper.SetSubShape( face );
+ list< const SMDS_MeshElement* >::iterator elemIt = elemsOnFace.begin();
+ for ( ; elemIt != elemsOnFace.end(); ++elemIt ) {
+ const SMDS_VtkFace* QF =
+ dynamic_cast<const SMDS_VtkFace*> (*elemIt);
+ if(QF && QF->IsQuadratic()) {
+ vector<const SMDS_MeshNode*> Ns;
+ Ns.reserve(QF->NbNodes()+1);
+ SMDS_ElemIteratorPtr anIter = QF->interlacedNodesElemIterator();
+ while ( anIter->more() )
+ Ns.push_back( cast2Node(anIter->next()) );
+ Ns.push_back( Ns[0] );
+ double x, y, z;
+ for(int i=0; i<QF->NbNodes(); i=i+2) {
+ if ( !surface.IsNull() ) {
+ gp_XY uv1 = helper.GetNodeUV( face, Ns[i], Ns[i+2] );
+ gp_XY uv2 = helper.GetNodeUV( face, Ns[i+2], Ns[i] );
+ gp_XY uv = ( uv1 + uv2 ) / 2.;
+ gp_Pnt xyz = surface->Value( uv.X(), uv.Y() );
+ x = xyz.X(); y = xyz.Y(); z = xyz.Z();
+ }
+ else {
+ x = (Ns[i]->X() + Ns[i+2]->X())/2;
+ y = (Ns[i]->Y() + Ns[i+2]->Y())/2;
+ z = (Ns[i]->Z() + Ns[i+2]->Z())/2;
+ }
+ if( fabs( Ns[i+1]->X() - x ) > disttol ||
+ fabs( Ns[i+1]->Y() - y ) > disttol ||
+ fabs( Ns[i+1]->Z() - z ) > disttol ) {
+ // we have to move i+1 node
+ aMesh->MoveNode( Ns[i+1], x, y, z );
+ }
+ }
+ }
+ }
}
- }
- // 3. Path Points
- SMESH_MeshEditor_PathPoint aPP;
- vector<SMESH_MeshEditor_PathPoint> aPPs( aNbTP );
- //
- aC3D = BRep_Tool::Curve( aTrackEdge, aTx1, aTx2 );
- //
- aItD = aPrms.begin();
- for ( j=0; aItD != aPrms.end(); ++aItD, ++j ) {
- aT = *aItD;
- aC3D->D1( aT, aP3D, aVec );
- aL2 = aVec.SquareMagnitude();
- if ( aL2 < aTolVec2 )
- return EXTR_CANT_GET_TANGENT;
+ } // loop on face ids
- gp_Dir aTgt( aVec );
- aAngle = aAngles[j];
+}
- aPP.SetPnt( aP3D );
- aPP.SetTangent( aTgt );
- aPP.SetAngle( aAngle );
- aPP.SetParameter( aT );
- aPPs[j]=aPP;
- }
+//=======================================================================
+//function : isReverse
+//purpose : Return true if normal of prevNodes is not co-directied with
+// gp_Vec(prevNodes[iNotSame],nextNodes[iNotSame]).
+// iNotSame is where prevNodes and nextNodes are different.
+// If result is true then future volume orientation is OK
+//=======================================================================
- // 3. Center of rotation aV0
- aV0 = theRefPoint;
- if ( !theHasRefPoint ) {
- aNb = 0;
- aGC.SetCoord( 0.,0.,0. );
+static bool isReverse(const SMDS_MeshElement* face,
+ const vector<const SMDS_MeshNode*>& prevNodes,
+ const vector<const SMDS_MeshNode*>& nextNodes,
+ const int iNotSame)
+{
- itElem = theElements.begin();
- for ( ; itElem != theElements.end(); itElem++ ) {
- const SMDS_MeshElement* elem = *itElem;
+ SMESH_TNodeXYZ pP = prevNodes[ iNotSame ];
+ SMESH_TNodeXYZ pN = nextNodes[ iNotSame ];
+ gp_XYZ extrDir( pN - pP ), faceNorm;
+ SMESH_Algo::FaceNormal( face, faceNorm, /*normalized=*/false );
- SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- while ( itN->more() ) {
- const SMDS_MeshNode* node = static_cast<const SMDS_MeshNode*>( itN->next() );
- aX = node->X();
- aY = node->Y();
- aZ = node->Z();
+ return faceNorm * extrDir < 0.0;
+}
- if ( mapNewNodes.find( node ) == mapNewNodes.end() ) {
- list<const SMDS_MeshNode*> aLNx;
- mapNewNodes[node] = aLNx;
- //
- gp_XYZ aXYZ( aX, aY, aZ );
- aGC += aXYZ;
- ++aNb;
- }
- }
- }
- aGC /= aNb;
- aV0.SetXYZ( aGC );
- } // if (!theHasRefPoint) {
- mapNewNodes.clear();
+//=======================================================================
+/*!
+ * \brief Create elements by sweeping an element
+ * \param elem - element to sweep
+ * \param newNodesItVec - nodes generated from each node of the element
+ * \param newElems - generated elements
+ * \param nbSteps - number of sweeping steps
+ * \param srcElements - to append elem for each generated element
+ */
+//=======================================================================
- // 4. Processing the elements
+void SMESH_MeshEditor::sweepElement(const SMDS_MeshElement* elem,
+ const vector<TNodeOfNodeListMapItr> & newNodesItVec,
+ list<const SMDS_MeshElement*>& newElems,
+ const int nbSteps,
+ SMESH_SequenceOfElemPtr& srcElements)
+{
+ //MESSAGE("sweepElement " << nbSteps);
SMESHDS_Mesh* aMesh = GetMeshDS();
- for ( itElem = theElements.begin(); itElem != theElements.end(); itElem++ ) {
- // check element type
- const SMDS_MeshElement* elem = *itElem;
- aTypeE = elem->GetType();
- if ( !elem || ( aTypeE != SMDSAbs_Face && aTypeE != SMDSAbs_Edge ) )
- continue;
-
- vector<TNodeOfNodeListMapItr> & newNodesItVec = mapElemNewNodes[ elem ];
- newNodesItVec.reserve( elem->NbNodes() );
-
- // loop on elem nodes
- int nodeIndex = -1;
- SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- while ( itN->more() )
- {
- ++nodeIndex;
- // check if a node has been already processed
- const SMDS_MeshNode* node =
- static_cast<const SMDS_MeshNode*>( itN->next() );
- TNodeOfNodeListMap::iterator nIt = mapNewNodes.find( node );
- if ( nIt == mapNewNodes.end() ) {
- nIt = mapNewNodes.insert( make_pair( node, list<const SMDS_MeshNode*>() )).first;
- list<const SMDS_MeshNode*>& listNewNodes = nIt->second;
-
- // make new nodes
- aX = node->X(); aY = node->Y(); aZ = node->Z();
-
- Standard_Real aAngle1x, aAngleT1T0, aTolAng;
- gp_Pnt aP0x, aP1x, aPN0, aPN1, aV0x, aV1x;
- gp_Ax1 anAx1, anAxT1T0;
- gp_Dir aDT1x, aDT0x, aDT1T0;
-
- aTolAng=1.e-4;
+ const int nbNodes = elem->NbNodes();
+ const int nbCorners = elem->NbCornerNodes();
+ SMDSAbs_EntityType baseType = elem->GetEntityType(); /* it can change in case of
+ polyhedron creation !!! */
+ // Loop on elem nodes:
+ // find new nodes and detect same nodes indices
+ vector < list< const SMDS_MeshNode* >::const_iterator > itNN( nbNodes );
+ vector<const SMDS_MeshNode*> prevNod( nbNodes );
+ vector<const SMDS_MeshNode*> nextNod( nbNodes );
+ vector<const SMDS_MeshNode*> midlNod( nbNodes );
- aV0x = aV0;
- aPN0.SetCoord(aX, aY, aZ);
+ int iNode, nbSame = 0, nbDouble = 0, iNotSameNode = 0;
+ vector<int> sames(nbNodes);
+ vector<bool> isSingleNode(nbNodes);
- const SMESH_MeshEditor_PathPoint& aPP0 = aPPs[0];
- aP0x = aPP0.Pnt();
- aDT0x= aPP0.Tangent();
+ for ( iNode = 0; iNode < nbNodes; iNode++ ) {
+ TNodeOfNodeListMapItr nnIt = newNodesItVec[ iNode ];
+ const SMDS_MeshNode* node = nnIt->first;
+ const list< const SMDS_MeshNode* > & listNewNodes = nnIt->second;
+ if ( listNewNodes.empty() )
+ return;
- for ( j = 1; j < aNbTP; ++j ) {
- const SMESH_MeshEditor_PathPoint& aPP1 = aPPs[j];
- aP1x = aPP1.Pnt();
- aDT1x = aPP1.Tangent();
- aAngle1x = aPP1.Angle();
+ itNN [ iNode ] = listNewNodes.begin();
+ prevNod[ iNode ] = node;
+ nextNod[ iNode ] = listNewNodes.front();
- gp_Trsf aTrsf, aTrsfRot, aTrsfRotT1T0;
- // Translation
- gp_Vec aV01x( aP0x, aP1x );
- aTrsf.SetTranslation( aV01x );
+ isSingleNode[iNode] = (listNewNodes.size()==nbSteps); /* medium node of quadratic or
+ corner node of linear */
+ if ( prevNod[ iNode ] != nextNod [ iNode ])
+ nbDouble += !isSingleNode[iNode];
- // traslated point
- aV1x = aV0x.Transformed( aTrsf );
- aPN1 = aPN0.Transformed( aTrsf );
+ if( iNode < nbCorners ) { // check corners only
+ if ( prevNod[ iNode ] == nextNod [ iNode ])
+ sames[nbSame++] = iNode;
+ else
+ iNotSameNode = iNode;
+ }
+ }
- // rotation 1 [ T1,T0 ]
- aAngleT1T0=-aDT1x.Angle( aDT0x );
- if (fabs(aAngleT1T0) > aTolAng) {
- aDT1T0=aDT1x^aDT0x;
- anAxT1T0.SetLocation( aV1x );
- anAxT1T0.SetDirection( aDT1T0 );
- aTrsfRotT1T0.SetRotation( anAxT1T0, aAngleT1T0 );
+ if ( nbSame == nbNodes || nbSame > 2) {
+ MESSAGE( " Too many same nodes of element " << elem->GetID() );
+ return;
+ }
- aPN1 = aPN1.Transformed( aTrsfRotT1T0 );
- }
+ if ( elem->GetType() == SMDSAbs_Face && !isReverse( elem, prevNod, nextNod, iNotSameNode ))
+ {
+ // fix nodes order to have bottom normal external
+ if ( baseType == SMDSEntity_Polygon )
+ {
+ std::reverse( itNN.begin(), itNN.end() );
+ std::reverse( prevNod.begin(), prevNod.end() );
+ std::reverse( midlNod.begin(), midlNod.end() );
+ std::reverse( nextNod.begin(), nextNod.end() );
+ std::reverse( isSingleNode.begin(), isSingleNode.end() );
+ }
+ else
+ {
+ const vector<int>& ind = SMDS_MeshCell::reverseSmdsOrder( baseType );
+ SMDS_MeshCell::applyInterlace( ind, itNN );
+ SMDS_MeshCell::applyInterlace( ind, prevNod );
+ SMDS_MeshCell::applyInterlace( ind, nextNod );
+ SMDS_MeshCell::applyInterlace( ind, midlNod );
+ SMDS_MeshCell::applyInterlace( ind, isSingleNode );
+ if ( nbSame > 0 )
+ {
+ sames[nbSame] = iNotSameNode;
+ for ( int j = 0; j <= nbSame; ++j )
+ for ( size_t i = 0; i < ind.size(); ++i )
+ if ( ind[i] == sames[j] )
+ {
+ sames[j] = i;
+ break;
+ }
+ iNotSameNode = sames[nbSame];
+ }
+ }
+ }
- // rotation 2
- if ( theHasAngles ) {
- anAx1.SetLocation( aV1x );
- anAx1.SetDirection( aDT1x );
- aTrsfRot.SetRotation( anAx1, aAngle1x );
+ int iSameNode = 0, iBeforeSame = 0, iAfterSame = 0, iOpposSame = 0;
+ if ( nbSame > 0 ) {
+ iSameNode = sames[ nbSame-1 ];
+ iBeforeSame = ( iSameNode + nbCorners - 1 ) % nbCorners;
+ iAfterSame = ( iSameNode + 1 ) % nbCorners;
+ iOpposSame = ( iSameNode - 2 < 0 ? iSameNode + 2 : iSameNode - 2 );
+ }
- aPN1 = aPN1.Transformed( aTrsfRot );
- }
+ // make new elements
+ for (int iStep = 0; iStep < nbSteps; iStep++ )
+ {
+ // get next nodes
+ for ( iNode = 0; iNode < nbNodes; iNode++ )
+ {
+ midlNod[ iNode ] = isSingleNode[iNode] ? 0 : *itNN[ iNode ]++;
+ nextNod[ iNode ] = *itNN[ iNode ]++;
+ }
- // make new node
- if( elem->IsQuadratic() && !elem->IsMediumNode(node) ) {
- // create additional node
- double x = ( aPN1.X() + aPN0.X() )/2.;
- double y = ( aPN1.Y() + aPN0.Y() )/2.;
- double z = ( aPN1.Z() + aPN0.Z() )/2.;
- const SMDS_MeshNode* newNode = aMesh->AddNode(x,y,z);
- myLastCreatedNodes.Append(newNode);
- srcNodes.Append( node );
- listNewNodes.push_back( newNode );
+ SMDS_MeshElement* aNewElem = 0;
+ /*if(!elem->IsPoly())*/ {
+ switch ( baseType ) {
+ case SMDSEntity_0D:
+ case SMDSEntity_Node: { // sweep NODE
+ if ( nbSame == 0 ) {
+ if ( isSingleNode[0] )
+ aNewElem = aMesh->AddEdge( prevNod[ 0 ], nextNod[ 0 ] );
+ else
+ aNewElem = aMesh->AddEdge( prevNod[ 0 ], nextNod[ 0 ], midlNod[ 0 ] );
+ }
+ else
+ return;
+ break;
+ }
+ case SMDSEntity_Edge: { // sweep EDGE
+ if ( nbDouble == 0 )
+ {
+ if ( nbSame == 0 ) // ---> quadrangle
+ aNewElem = aMesh->AddFace(prevNod[ 0 ], prevNod[ 1 ],
+ nextNod[ 1 ], nextNod[ 0 ] );
+ else // ---> triangle
+ aNewElem = aMesh->AddFace(prevNod[ 0 ], prevNod[ 1 ],
+ nextNod[ iNotSameNode ] );
+ }
+ else // ---> polygon
+ {
+ vector<const SMDS_MeshNode*> poly_nodes;
+ poly_nodes.push_back( prevNod[0] );
+ poly_nodes.push_back( prevNod[1] );
+ if ( prevNod[1] != nextNod[1] )
+ {
+ if ( midlNod[1]) poly_nodes.push_back( midlNod[1]);
+ poly_nodes.push_back( nextNod[1] );
}
- aX = aPN1.X();
- aY = aPN1.Y();
- aZ = aPN1.Z();
- const SMDS_MeshNode* newNode = aMesh->AddNode( aX, aY, aZ );
- myLastCreatedNodes.Append(newNode);
- srcNodes.Append( node );
- listNewNodes.push_back( newNode );
-
- aPN0 = aPN1;
- aP0x = aP1x;
- aV0x = aV1x;
- aDT0x = aDT1x;
- }
+ if ( prevNod[0] != nextNod[0] )
+ {
+ poly_nodes.push_back( nextNod[0] );
+ if ( midlNod[0]) poly_nodes.push_back( midlNod[0]);
+ }
+ switch ( poly_nodes.size() ) {
+ case 3:
+ aNewElem = aMesh->AddFace( poly_nodes[ 0 ], poly_nodes[ 1 ], poly_nodes[ 2 ]);
+ break;
+ case 4:
+ aNewElem = aMesh->AddFace( poly_nodes[ 0 ], poly_nodes[ 1 ],
+ poly_nodes[ 2 ], poly_nodes[ 3 ]);
+ break;
+ default:
+ aNewElem = aMesh->AddPolygonalFace (poly_nodes);
+ }
+ }
+ break;
}
+ case SMDSEntity_Triangle: // TRIANGLE --->
+ {
+ if ( nbDouble > 0 ) break;
+ if ( nbSame == 0 ) // ---> pentahedron
+ aNewElem = aMesh->AddVolume (prevNod[ 0 ], prevNod[ 1 ], prevNod[ 2 ],
+ nextNod[ 0 ], nextNod[ 1 ], nextNod[ 2 ] );
+
+ else if ( nbSame == 1 ) // ---> pyramid
+ aNewElem = aMesh->AddVolume (prevNod[ iBeforeSame ], prevNod[ iAfterSame ],
+ nextNod[ iAfterSame ], nextNod[ iBeforeSame ],
+ nextNod[ iSameNode ]);
- else {
- // if current elem is quadratic and current node is not medium
- // we have to check - may be it is needed to insert additional nodes
- if( elem->IsQuadratic() && !elem->IsMediumNode(node) ) {
- list< const SMDS_MeshNode* > & listNewNodes = nIt->second;
- if(listNewNodes.size()==aNbTP-1) {
- vector<const SMDS_MeshNode*> aNodes(2*(aNbTP-1));
- gp_XYZ P(node->X(), node->Y(), node->Z());
- list< const SMDS_MeshNode* >::iterator it = listNewNodes.begin();
- int i;
- for(i=0; i<aNbTP-1; i++) {
- const SMDS_MeshNode* N = *it;
- double x = ( N->X() + P.X() )/2.;
- double y = ( N->Y() + P.Y() )/2.;
- double z = ( N->Z() + P.Z() )/2.;
- const SMDS_MeshNode* newN = aMesh->AddNode(x,y,z);
- srcNodes.Append( node );
- myLastCreatedNodes.Append(newN);
- aNodes[2*i] = newN;
- aNodes[2*i+1] = N;
- P = gp_XYZ(N->X(),N->Y(),N->Z());
+ else // 2 same nodes: ---> tetrahedron
+ aNewElem = aMesh->AddVolume (prevNod[ 0 ], prevNod[ 1 ], prevNod[ 2 ],
+ nextNod[ iNotSameNode ]);
+ break;
+ }
+ case SMDSEntity_Quad_Edge: // sweep quadratic EDGE --->
+ {
+ if ( nbSame == 2 )
+ return;
+ if ( nbDouble+nbSame == 2 )
+ {
+ if(nbSame==0) { // ---> quadratic quadrangle
+ aNewElem = aMesh->AddFace(prevNod[0], prevNod[1], nextNod[1], nextNod[0],
+ prevNod[2], midlNod[1], nextNod[2], midlNod[0]);
}
- listNewNodes.clear();
- for(i=0; i<2*(aNbTP-1); i++) {
- listNewNodes.push_back(aNodes[i]);
+ else { //(nbSame==1) // ---> quadratic triangle
+ if(sames[0]==2) {
+ return; // medium node on axis
+ }
+ else if(sames[0]==0)
+ aNewElem = aMesh->AddFace(prevNod[0], nextNod[1], prevNod[1],
+ nextNod[2], midlNod[1], prevNod[2]);
+ else // sames[0]==1
+ aNewElem = aMesh->AddFace(prevNod[0], nextNod[0], prevNod[1],
+ midlNod[0], nextNod[2], prevNod[2]);
+ }
+ }
+ else if ( nbDouble == 3 )
+ {
+ if ( nbSame == 0 ) { // ---> bi-quadratic quadrangle
+ aNewElem = aMesh->AddFace(prevNod[0], prevNod[1], nextNod[1], nextNod[0],
+ prevNod[2], midlNod[1], nextNod[2], midlNod[0], midlNod[2]);
}
}
+ else
+ return;
+ break;
}
- }
+ case SMDSEntity_Quadrangle: { // sweep QUADRANGLE --->
+ if ( nbDouble > 0 ) break;
- newNodesItVec.push_back( nIt );
- }
- // make new elements
- //sweepElement( aMesh, elem, newNodesItVec, newElemsMap[elem],
- // newNodesItVec[0]->second.size(), myLastCreatedElems );
- sweepElement( elem, newNodesItVec, newElemsMap[elem], aNbTP-1, srcElems );
- }
+ if ( nbSame == 0 ) // ---> hexahedron
+ aNewElem = aMesh->AddVolume (prevNod[ 0 ], prevNod[ 1 ], prevNod[ 2 ], prevNod[ 3 ],
+ nextNod[ 0 ], nextNod[ 1 ], nextNod[ 2 ], nextNod[ 3 ]);
- makeWalls( mapNewNodes, newElemsMap, mapElemNewNodes, theElements, aNbTP-1, srcElems );
+ else if ( nbSame == 1 ) { // ---> pyramid + pentahedron
+ aNewElem = aMesh->AddVolume (prevNod[ iBeforeSame ], prevNod[ iAfterSame ],
+ nextNod[ iAfterSame ], nextNod[ iBeforeSame ],
+ nextNod[ iSameNode ]);
+ newElems.push_back( aNewElem );
+ aNewElem = aMesh->AddVolume (prevNod[ iAfterSame ], prevNod[ iOpposSame ],
+ prevNod[ iBeforeSame ], nextNod[ iAfterSame ],
+ nextNod[ iOpposSame ], nextNod[ iBeforeSame ] );
+ }
+ else if ( nbSame == 2 ) { // ---> pentahedron
+ if ( prevNod[ iBeforeSame ] == nextNod[ iBeforeSame ] )
+ // iBeforeSame is same too
+ aNewElem = aMesh->AddVolume (prevNod[ iBeforeSame ], prevNod[ iOpposSame ],
+ nextNod[ iOpposSame ], prevNod[ iSameNode ],
+ prevNod[ iAfterSame ], nextNod[ iAfterSame ]);
+ else
+ // iAfterSame is same too
+ aNewElem = aMesh->AddVolume (prevNod[ iSameNode ], prevNod[ iBeforeSame ],
+ nextNod[ iBeforeSame ], prevNod[ iAfterSame ],
+ prevNod[ iOpposSame ], nextNod[ iOpposSame ]);
+ }
+ break;
+ }
+ case SMDSEntity_Quad_Triangle: { // sweep Quadratic TRIANGLE --->
+ if ( nbDouble+nbSame != 3 ) break;
+ if(nbSame==0) {
+ // ---> pentahedron with 15 nodes
+ aNewElem = aMesh->AddVolume (prevNod[0], prevNod[1], prevNod[2],
+ nextNod[0], nextNod[1], nextNod[2],
+ prevNod[3], prevNod[4], prevNod[5],
+ nextNod[3], nextNod[4], nextNod[5],
+ midlNod[0], midlNod[1], midlNod[2]);
+ }
+ else if(nbSame==1) {
+ // ---> 2d order pyramid of 13 nodes
+ int apex = iSameNode;
+ int i0 = ( apex + 1 ) % nbCorners;
+ int i1 = ( apex - 1 + nbCorners ) % nbCorners;
+ int i0a = apex + 3;
+ int i1a = i1 + 3;
+ int i01 = i0 + 3;
+ aNewElem = aMesh->AddVolume(prevNod[i1], prevNod[i0],
+ nextNod[i0], nextNod[i1], prevNod[apex],
+ prevNod[i01], midlNod[i0],
+ nextNod[i01], midlNod[i1],
+ prevNod[i1a], prevNod[i0a],
+ nextNod[i0a], nextNod[i1a]);
+ }
+ else if(nbSame==2) {
+ // ---> 2d order tetrahedron of 10 nodes
+ int n1 = iNotSameNode;
+ int n2 = ( n1 + 1 ) % nbCorners;
+ int n3 = ( n1 + nbCorners - 1 ) % nbCorners;
+ int n12 = n1 + 3;
+ int n23 = n2 + 3;
+ int n31 = n3 + 3;
+ aNewElem = aMesh->AddVolume (prevNod[n1], prevNod[n2], prevNod[n3], nextNod[n1],
+ prevNod[n12], prevNod[n23], prevNod[n31],
+ midlNod[n1], nextNod[n12], nextNod[n31]);
+ }
+ break;
+ }
+ case SMDSEntity_Quad_Quadrangle: { // sweep Quadratic QUADRANGLE --->
+ if ( nbDouble != 4 ) break;
+ if( nbSame == 0 ) {
+ // ---> hexahedron with 20 nodes
+ aNewElem = aMesh->AddVolume (prevNod[0], prevNod[1], prevNod[2], prevNod[3],
+ nextNod[0], nextNod[1], nextNod[2], nextNod[3],
+ prevNod[4], prevNod[5], prevNod[6], prevNod[7],
+ nextNod[4], nextNod[5], nextNod[6], nextNod[7],
+ midlNod[0], midlNod[1], midlNod[2], midlNod[3]);
+ }
+ else if(nbSame==1) {
+ // ---> pyramid + pentahedron - can not be created since it is needed
+ // additional middle node at the center of face
+ INFOS( " Sweep for face " << elem->GetID() << " can not be created" );
+ return;
+ }
+ else if( nbSame == 2 ) {
+ // ---> 2d order Pentahedron with 15 nodes
+ int n1,n2,n4,n5;
+ if ( prevNod[ iBeforeSame ] == nextNod[ iBeforeSame ] ) {
+ // iBeforeSame is same too
+ n1 = iBeforeSame;
+ n2 = iOpposSame;
+ n4 = iSameNode;
+ n5 = iAfterSame;
+ }
+ else {
+ // iAfterSame is same too
+ n1 = iSameNode;
+ n2 = iBeforeSame;
+ n4 = iAfterSame;
+ n5 = iOpposSame;
+ }
+ int n12 = n2 + 4;
+ int n45 = n4 + 4;
+ int n14 = n1 + 4;
+ int n25 = n5 + 4;
+ aNewElem = aMesh->AddVolume (prevNod[n1], prevNod[n2], nextNod[n2],
+ prevNod[n4], prevNod[n5], nextNod[n5],
+ prevNod[n12], midlNod[n2], nextNod[n12],
+ prevNod[n45], midlNod[n5], nextNod[n45],
+ prevNod[n14], prevNod[n25], nextNod[n25]);
+ }
+ break;
+ }
+ case SMDSEntity_BiQuad_Quadrangle: { // sweep BiQuadratic QUADRANGLE --->
- if ( theMakeGroups )
- generateGroups( srcNodes, srcElems, "extruded");
+ if( nbSame == 0 && nbDouble == 9 ) {
+ // ---> tri-quadratic hexahedron with 27 nodes
+ aNewElem = aMesh->AddVolume (prevNod[0], prevNod[1], prevNod[2], prevNod[3],
+ nextNod[0], nextNod[1], nextNod[2], nextNod[3],
+ prevNod[4], prevNod[5], prevNod[6], prevNod[7],
+ nextNod[4], nextNod[5], nextNod[6], nextNod[7],
+ midlNod[0], midlNod[1], midlNod[2], midlNod[3],
+ prevNod[8], // bottom center
+ midlNod[4], midlNod[5], midlNod[6], midlNod[7],
+ nextNod[8], // top center
+ midlNod[8]);// elem center
+ }
+ else
+ {
+ return;
+ }
+ break;
+ }
+ case SMDSEntity_Polygon: { // sweep POLYGON
- return EXTR_OK;
+ if ( nbNodes == 6 && nbSame == 0 && nbDouble == 0 ) {
+ // ---> hexagonal prism
+ aNewElem = aMesh->AddVolume (prevNod[0], prevNod[1], prevNod[2],
+ prevNod[3], prevNod[4], prevNod[5],
+ nextNod[0], nextNod[1], nextNod[2],
+ nextNod[3], nextNod[4], nextNod[5]);
+ }
+ break;
+ }
+ default:
+ break;
+ }
+ }
+
+ if ( !aNewElem && elem->GetType() == SMDSAbs_Face ) // try to create a polyherdal prism
+ {
+ if ( baseType != SMDSEntity_Polygon )
+ {
+ const std::vector<int>& ind = SMDS_MeshCell::interlacedSmdsOrder(baseType);
+ SMDS_MeshCell::applyInterlace( ind, prevNod );
+ SMDS_MeshCell::applyInterlace( ind, nextNod );
+ SMDS_MeshCell::applyInterlace( ind, midlNod );
+ SMDS_MeshCell::applyInterlace( ind, itNN );
+ SMDS_MeshCell::applyInterlace( ind, isSingleNode );
+ baseType = SMDSEntity_Polygon; // WARNING: change baseType !!!!
+ }
+ vector<const SMDS_MeshNode*> polyedre_nodes (nbNodes*2 + 4*nbNodes);
+ vector<int> quantities (nbNodes + 2);
+ polyedre_nodes.clear();
+ quantities.clear();
+
+ // bottom of prism
+ for (int inode = 0; inode < nbNodes; inode++)
+ polyedre_nodes.push_back( prevNod[inode] );
+ quantities.push_back( nbNodes );
+
+ // top of prism
+ polyedre_nodes.push_back( nextNod[0] );
+ for (int inode = nbNodes; inode-1; --inode )
+ polyedre_nodes.push_back( nextNod[inode-1] );
+ quantities.push_back( nbNodes );
+
+ // side faces
+ for (int iface = 0; iface < nbNodes; iface++)
+ {
+ const int prevNbNodes = polyedre_nodes.size();
+ int inextface = (iface+1) % nbNodes;
+ polyedre_nodes.push_back( prevNod[inextface] );
+ polyedre_nodes.push_back( prevNod[iface] );
+ if ( prevNod[iface] != nextNod[iface] )
+ {
+ if ( midlNod[ iface ]) polyedre_nodes.push_back( midlNod[ iface ]);
+ polyedre_nodes.push_back( nextNod[iface] );
+ }
+ if ( prevNod[inextface] != nextNod[inextface] )
+ {
+ polyedre_nodes.push_back( nextNod[inextface] );
+ if ( midlNod[ inextface ]) polyedre_nodes.push_back( midlNod[ inextface ]);
+ }
+ const int nbFaceNodes = polyedre_nodes.size() - prevNbNodes;
+ if ( nbFaceNodes > 2 )
+ quantities.push_back( nbFaceNodes );
+ else // degenerated face
+ polyedre_nodes.resize( prevNbNodes );
+ }
+ aNewElem = aMesh->AddPolyhedralVolume (polyedre_nodes, quantities);
+ }
+
+ if ( aNewElem ) {
+ newElems.push_back( aNewElem );
+ myLastCreatedElems.Append(aNewElem);
+ srcElements.Append( elem );
+ }
+
+ // set new prev nodes
+ for ( iNode = 0; iNode < nbNodes; iNode++ )
+ prevNod[ iNode ] = nextNod[ iNode ];
+
+ } // for steps
}
//=======================================================================
-//function : Transform
-//purpose :
+/*!
+ * \brief Create 1D and 2D elements around swept elements
+ * \param mapNewNodes - source nodes and ones generated from them
+ * \param newElemsMap - source elements and ones generated from them
+ * \param elemNewNodesMap - nodes generated from each node of each element
+ * \param elemSet - all swept elements
+ * \param nbSteps - number of sweeping steps
+ * \param srcElements - to append elem for each generated element
+ */
//=======================================================================
-SMESH_MeshEditor::PGroupIDs
-SMESH_MeshEditor::Transform (TIDSortedElemSet & theElems,
- const gp_Trsf& theTrsf,
- const bool theCopy,
- const bool theMakeGroups,
- SMESH_Mesh* theTargetMesh)
+void SMESH_MeshEditor::makeWalls (TNodeOfNodeListMap & mapNewNodes,
+ TElemOfElemListMap & newElemsMap,
+ TElemOfVecOfNnlmiMap & elemNewNodesMap,
+ TIDSortedElemSet& elemSet,
+ const int nbSteps,
+ SMESH_SequenceOfElemPtr& srcElements)
{
- myLastCreatedElems.Clear();
- myLastCreatedNodes.Clear();
-
- bool needReverse = false;
- string groupPostfix;
- switch ( theTrsf.Form() ) {
- case gp_PntMirror:
- case gp_Ax1Mirror:
- case gp_Ax2Mirror:
- needReverse = true;
- groupPostfix = "mirrored";
- break;
- case gp_Rotation:
- groupPostfix = "rotated";
- break;
- case gp_Translation:
- groupPostfix = "translated";
- break;
- case gp_Scale:
- groupPostfix = "scaled";
- break;
- default:
- needReverse = false;
- groupPostfix = "transformed";
- }
-
- SMESH_MeshEditor targetMeshEditor( theTargetMesh );
- SMESHDS_Mesh* aTgtMesh = theTargetMesh ? theTargetMesh->GetMeshDS() : 0;
- SMESHDS_Mesh* aMesh = GetMeshDS();
-
+ ASSERT( newElemsMap.size() == elemNewNodesMap.size() );
+ SMESHDS_Mesh* aMesh = GetMeshDS();
- // map old node to new one
- TNodeNodeMap nodeMap;
+ // Find nodes belonging to only one initial element - sweep them to get edges.
- // elements sharing moved nodes; those of them which have all
- // nodes mirrored but are not in theElems are to be reversed
- TIDSortedElemSet inverseElemSet;
+ TNodeOfNodeListMapItr nList = mapNewNodes.begin();
+ for ( ; nList != mapNewNodes.end(); nList++ )
+ {
+ const SMDS_MeshNode* node =
+ static_cast<const SMDS_MeshNode*>( nList->first );
+ SMDS_ElemIteratorPtr eIt = node->GetInverseElementIterator();
+ int nbInitElems = 0;
+ const SMDS_MeshElement* el = 0;
+ SMDSAbs_ElementType highType = SMDSAbs_Edge; // count most complex elements only
+ while ( eIt->more() && nbInitElems < 2 ) {
+ el = eIt->next();
+ SMDSAbs_ElementType type = el->GetType();
+ if ( type == SMDSAbs_Volume || type < highType ) continue;
+ if ( type > highType ) {
+ nbInitElems = 0;
+ highType = type;
+ }
+ nbInitElems += elemSet.count(el);
+ }
+ if ( nbInitElems < 2 ) {
+ bool NotCreateEdge = el && el->IsMediumNode(node);
+ if(!NotCreateEdge) {
+ vector<TNodeOfNodeListMapItr> newNodesItVec( 1, nList );
+ list<const SMDS_MeshElement*> newEdges;
+ sweepElement( node, newNodesItVec, newEdges, nbSteps, srcElements );
+ }
+ }
+ }
- // source elements for each generated one
- SMESH_SequenceOfElemPtr srcElems, srcNodes;
+ // Make a ceiling for each element ie an equal element of last new nodes.
+ // Find free links of faces - make edges and sweep them into faces.
- // loop on theElems
- TIDSortedElemSet::iterator itElem;
- for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ ) {
- const SMDS_MeshElement* elem = *itElem;
- if ( !elem )
- continue;
+ TElemOfElemListMap::iterator itElem = newElemsMap.begin();
+ TElemOfVecOfNnlmiMap::iterator itElemNodes = elemNewNodesMap.begin();
+ for ( ; itElem != newElemsMap.end(); itElem++, itElemNodes++ )
+ {
+ const SMDS_MeshElement* elem = itElem->first;
+ vector<TNodeOfNodeListMapItr>& vecNewNodes = itElemNodes->second;
- // loop on elem nodes
- SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- while ( itN->more() ) {
+ if(itElem->second.size()==0) continue;
- // check if a node has been already transformed
- const SMDS_MeshNode* node = cast2Node( itN->next() );
- pair<TNodeNodeMap::iterator,bool> n2n_isnew =
- nodeMap.insert( make_pair ( node, node ));
- if ( !n2n_isnew.second )
- continue;
+ const bool isQuadratic = elem->IsQuadratic();
- double coord[3];
- coord[0] = node->X();
- coord[1] = node->Y();
- coord[2] = node->Z();
- theTrsf.Transforms( coord[0], coord[1], coord[2] );
- if ( theTargetMesh ) {
- const SMDS_MeshNode * newNode = aTgtMesh->AddNode( coord[0], coord[1], coord[2] );
- n2n_isnew.first->second = newNode;
- myLastCreatedNodes.Append(newNode);
- srcNodes.Append( node );
- }
- else if ( theCopy ) {
- const SMDS_MeshNode * newNode = aMesh->AddNode( coord[0], coord[1], coord[2] );
- n2n_isnew.first->second = newNode;
- myLastCreatedNodes.Append(newNode);
- srcNodes.Append( node );
+ if ( elem->GetType() == SMDSAbs_Edge ) {
+ // create a ceiling edge
+ if ( !isQuadratic ) {
+ if ( !aMesh->FindEdge( vecNewNodes[ 0 ]->second.back(),
+ vecNewNodes[ 1 ]->second.back())) {
+ myLastCreatedElems.Append(aMesh->AddEdge(vecNewNodes[ 0 ]->second.back(),
+ vecNewNodes[ 1 ]->second.back()));
+ srcElements.Append( myLastCreatedElems.Last() );
+ }
}
else {
- aMesh->MoveNode( node, coord[0], coord[1], coord[2] );
- // node position on shape becomes invalid
- const_cast< SMDS_MeshNode* > ( node )->SetPosition
- ( SMDS_SpacePosition::originSpacePosition() );
- }
-
- // keep inverse elements
- if ( !theCopy && !theTargetMesh && needReverse ) {
- SMDS_ElemIteratorPtr invElemIt = node->GetInverseElementIterator();
- while ( invElemIt->more() ) {
- const SMDS_MeshElement* iel = invElemIt->next();
- inverseElemSet.insert( iel );
+ if ( !aMesh->FindEdge( vecNewNodes[ 0 ]->second.back(),
+ vecNewNodes[ 1 ]->second.back(),
+ vecNewNodes[ 2 ]->second.back())) {
+ myLastCreatedElems.Append(aMesh->AddEdge(vecNewNodes[ 0 ]->second.back(),
+ vecNewNodes[ 1 ]->second.back(),
+ vecNewNodes[ 2 ]->second.back()));
+ srcElements.Append( myLastCreatedElems.Last() );
}
}
}
- }
+ if ( elem->GetType() != SMDSAbs_Face )
+ continue;
- // either create new elements or reverse mirrored ones
- if ( !theCopy && !needReverse && !theTargetMesh )
- return PGroupIDs();
+ bool hasFreeLinks = false;
- TIDSortedElemSet::iterator invElemIt = inverseElemSet.begin();
- for ( ; invElemIt != inverseElemSet.end(); invElemIt++ )
- theElems.insert( *invElemIt );
-
- // replicate or reverse elements
-
- enum {
- REV_TETRA = 0, // = nbNodes - 4
- REV_PYRAMID = 1, // = nbNodes - 4
- REV_PENTA = 2, // = nbNodes - 4
- REV_FACE = 3,
- REV_HEXA = 4, // = nbNodes - 4
- FORWARD = 5
- };
- int index[][8] = {
- { 2, 1, 0, 3, 4, 0, 0, 0 }, // REV_TETRA
- { 2, 1, 0, 3, 4, 0, 0, 0 }, // REV_PYRAMID
- { 2, 1, 0, 5, 4, 3, 0, 0 }, // REV_PENTA
- { 2, 1, 0, 3, 0, 0, 0, 0 }, // REV_FACE
- { 2, 1, 0, 3, 6, 5, 4, 7 }, // REV_HEXA
- { 0, 1, 2, 3, 4, 5, 6, 7 } // FORWARD
- };
-
- for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ )
- {
- const SMDS_MeshElement* elem = *itElem;
- if ( !elem || elem->GetType() == SMDSAbs_Node )
- continue;
-
- int nbNodes = elem->NbNodes();
- int elemType = elem->GetType();
+ TIDSortedElemSet avoidSet;
+ avoidSet.insert( elem );
- if (elem->IsPoly()) {
- // Polygon or Polyhedral Volume
- switch ( elemType ) {
- case SMDSAbs_Face:
- {
- vector<const SMDS_MeshNode*> poly_nodes (nbNodes);
- int iNode = 0;
- SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- while (itN->more()) {
- const SMDS_MeshNode* node =
- static_cast<const SMDS_MeshNode*>(itN->next());
- TNodeNodeMap::iterator nodeMapIt = nodeMap.find(node);
- if (nodeMapIt == nodeMap.end())
- break; // not all nodes transformed
- if (needReverse) {
- // reverse mirrored faces and volumes
- poly_nodes[nbNodes - iNode - 1] = (*nodeMapIt).second;
- } else {
- poly_nodes[iNode] = (*nodeMapIt).second;
- }
- iNode++;
+ set<const SMDS_MeshNode*> aFaceLastNodes;
+ int iNode, nbNodes = vecNewNodes.size();
+ if ( !isQuadratic ) {
+ // loop on the face nodes
+ for ( iNode = 0; iNode < nbNodes; iNode++ ) {
+ aFaceLastNodes.insert( vecNewNodes[ iNode ]->second.back() );
+ // look for free links of the face
+ int iNext = ( iNode + 1 == nbNodes ) ? 0 : iNode + 1;
+ const SMDS_MeshNode* n1 = vecNewNodes[ iNode ]->first;
+ const SMDS_MeshNode* n2 = vecNewNodes[ iNext ]->first;
+ // check if a link is free
+ if ( ! SMESH_MeshEditor::FindFaceInSet ( n1, n2, elemSet, avoidSet )) {
+ hasFreeLinks = true;
+ // make an edge and a ceiling for a new edge
+ if ( !aMesh->FindEdge( n1, n2 )) {
+ myLastCreatedElems.Append(aMesh->AddEdge( n1, n2 )); // free link edge
+ srcElements.Append( myLastCreatedElems.Last() );
}
- if ( iNode != nbNodes )
- continue; // not all nodes transformed
-
- if ( theTargetMesh ) {
- myLastCreatedElems.Append(aTgtMesh->AddPolygonalFace(poly_nodes));
- srcElems.Append( elem );
+ n1 = vecNewNodes[ iNode ]->second.back();
+ n2 = vecNewNodes[ iNext ]->second.back();
+ if ( !aMesh->FindEdge( n1, n2 )) {
+ myLastCreatedElems.Append(aMesh->AddEdge( n1, n2 )); // ceiling edge
+ srcElements.Append( myLastCreatedElems.Last() );
}
- else if ( theCopy ) {
- myLastCreatedElems.Append(aMesh->AddPolygonalFace(poly_nodes));
- srcElems.Append( elem );
+ }
+ }
+ }
+ else { // elem is quadratic face
+ int nbn = nbNodes/2;
+ for ( iNode = 0; iNode < nbn; iNode++ ) {
+ aFaceLastNodes.insert( vecNewNodes[ iNode ]->second.back() );
+ int iNext = ( iNode + 1 == nbn ) ? 0 : iNode + 1;
+ const SMDS_MeshNode* n1 = vecNewNodes[ iNode ]->first;
+ const SMDS_MeshNode* n2 = vecNewNodes[ iNext ]->first;
+ const SMDS_MeshNode* n3 = vecNewNodes[ iNode+nbn ]->first;
+ // check if a link is free
+ if ( ! SMESH_MeshEditor::FindFaceInSet ( n1, n2, elemSet, avoidSet ) &&
+ ! SMESH_MeshEditor::FindFaceInSet ( n1, n3, elemSet, avoidSet ) &&
+ ! SMESH_MeshEditor::FindFaceInSet ( n3, n2, elemSet, avoidSet ) ) {
+ hasFreeLinks = true;
+ // make an edge and a ceiling for a new edge
+ // find medium node
+ if ( !aMesh->FindEdge( n1, n2, n3 )) {
+ myLastCreatedElems.Append(aMesh->AddEdge( n1, n2, n3 )); // free link edge
+ srcElements.Append( myLastCreatedElems.Last() );
}
- else {
- aMesh->ChangePolygonNodes(elem, poly_nodes);
+ n1 = vecNewNodes[ iNode ]->second.back();
+ n2 = vecNewNodes[ iNext ]->second.back();
+ n3 = vecNewNodes[ iNode+nbn ]->second.back();
+ if ( !aMesh->FindEdge( n1, n2, n3 )) {
+ myLastCreatedElems.Append(aMesh->AddEdge( n1, n2, n3 )); // ceiling edge
+ srcElements.Append( myLastCreatedElems.Last() );
}
}
- break;
- case SMDSAbs_Volume:
- {
- // ATTENTION: Reversing is not yet done!!!
- const SMDS_PolyhedralVolumeOfNodes* aPolyedre =
- dynamic_cast<const SMDS_PolyhedralVolumeOfNodes*>( elem );
- if (!aPolyedre) {
- MESSAGE("Warning: bad volumic element");
- continue;
- }
+ }
+ for ( iNode = nbn; iNode < nbNodes; iNode++ ) {
+ aFaceLastNodes.insert( vecNewNodes[ iNode ]->second.back() );
+ }
+ }
- vector<const SMDS_MeshNode*> poly_nodes;
- vector<int> quantities;
+ // sweep free links into faces
- bool allTransformed = true;
- int nbFaces = aPolyedre->NbFaces();
- for (int iface = 1; iface <= nbFaces && allTransformed; iface++) {
- int nbFaceNodes = aPolyedre->NbFaceNodes(iface);
- for (int inode = 1; inode <= nbFaceNodes && allTransformed; inode++) {
- const SMDS_MeshNode* node = aPolyedre->GetFaceNode(iface, inode);
- TNodeNodeMap::iterator nodeMapIt = nodeMap.find(node);
- if (nodeMapIt == nodeMap.end()) {
- allTransformed = false; // not all nodes transformed
- } else {
- poly_nodes.push_back((*nodeMapIt).second);
- }
- }
- quantities.push_back(nbFaceNodes);
- }
- if ( !allTransformed )
- continue; // not all nodes transformed
+ if ( hasFreeLinks ) {
+ list<const SMDS_MeshElement*> & newVolumes = itElem->second;
+ int iVol, volNb, nbVolumesByStep = newVolumes.size() / nbSteps;
- if ( theTargetMesh ) {
- myLastCreatedElems.Append(aTgtMesh->AddPolyhedralVolume(poly_nodes, quantities));
- srcElems.Append( elem );
- }
- else if ( theCopy ) {
- myLastCreatedElems.Append(aMesh->AddPolyhedralVolume(poly_nodes, quantities));
- srcElems.Append( elem );
- }
- else {
- aMesh->ChangePolyhedronNodes(elem, poly_nodes, quantities);
+ set<const SMDS_MeshNode*> initNodeSet, topNodeSet, faceNodeSet;
+ for ( iNode = 0; iNode < nbNodes; iNode++ ) {
+ initNodeSet.insert( vecNewNodes[ iNode ]->first );
+ topNodeSet .insert( vecNewNodes[ iNode ]->second.back() );
+ }
+ for ( volNb = 0; volNb < nbVolumesByStep; volNb++ ) {
+ list<const SMDS_MeshElement*>::iterator v = newVolumes.begin();
+ std::advance( v, volNb );
+ // find indices of free faces of a volume and their source edges
+ list< int > freeInd;
+ list< const SMDS_MeshElement* > srcEdges; // source edges of free faces
+ SMDS_VolumeTool vTool( *v, /*ignoreCentralNodes=*/false );
+ int iF, nbF = vTool.NbFaces();
+ for ( iF = 0; iF < nbF; iF ++ ) {
+ if (vTool.IsFreeFace( iF ) &&
+ vTool.GetFaceNodes( iF, faceNodeSet ) &&
+ initNodeSet != faceNodeSet) // except an initial face
+ {
+ if ( nbSteps == 1 && faceNodeSet == topNodeSet )
+ continue;
+ freeInd.push_back( iF );
+ // find source edge of a free face iF
+ vector<const SMDS_MeshNode*> commonNodes; // shared by the initial and free faces
+ commonNodes.resize( initNodeSet.size(), NULL ); // avoid spoiling memory
+ std::set_intersection( faceNodeSet.begin(), faceNodeSet.end(),
+ initNodeSet.begin(), initNodeSet.end(),
+ commonNodes.begin());
+ if ( (*v)->IsQuadratic() )
+ srcEdges.push_back(aMesh->FindEdge (commonNodes[0],commonNodes[1],commonNodes[2]));
+ else
+ srcEdges.push_back(aMesh->FindEdge (commonNodes[0],commonNodes[1]));
+#ifdef _DEBUG_
+ if ( !srcEdges.back() )
+ {
+ cout << "SMESH_MeshEditor::makeWalls(), no source edge found for a free face #"
+ << iF << " of volume #" << vTool.ID() << endl;
+ }
+#endif
}
}
- break;
- default:;
- }
- continue;
- }
-
- // Regular elements
- int* i = index[ FORWARD ];
- if ( needReverse && nbNodes > 2) // reverse mirrored faces and volumes
- if ( elemType == SMDSAbs_Face )
- i = index[ REV_FACE ];
- else
- i = index[ nbNodes - 4 ];
+ if ( freeInd.empty() )
+ continue;
- if(elem->IsQuadratic()) {
- static int anIds[] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
- i = anIds;
- if(needReverse) {
- if(nbNodes==3) { // quadratic edge
- static int anIds[] = {1,0,2};
- i = anIds;
- }
- else if(nbNodes==6) { // quadratic triangle
- static int anIds[] = {0,2,1,5,4,3};
- i = anIds;
- }
- else if(nbNodes==8) { // quadratic quadrangle
- static int anIds[] = {0,3,2,1,7,6,5,4};
- i = anIds;
- }
- else if(nbNodes==10) { // quadratic tetrahedron of 10 nodes
- static int anIds[] = {0,2,1,3,6,5,4,7,9,8};
- i = anIds;
- }
- else if(nbNodes==13) { // quadratic pyramid of 13 nodes
- static int anIds[] = {0,3,2,1,4,8,7,6,5,9,12,11,10};
- i = anIds;
- }
- else if(nbNodes==15) { // quadratic pentahedron with 15 nodes
- static int anIds[] = {0,2,1,3,5,4,8,7,6,11,10,9,12,14,13};
- i = anIds;
- }
- else { // nbNodes==20 - quadratic hexahedron with 20 nodes
- static int anIds[] = {0,3,2,1,4,7,6,5,11,10,9,8,15,14,13,12,16,19,18,17};
- i = anIds;
- }
- }
- }
+ // create faces for all steps;
+ // if such a face has been already created by sweep of edge,
+ // assure that its orientation is OK
+ for ( int iStep = 0; iStep < nbSteps; iStep++ ) {
+ vTool.Set( *v, /*ignoreCentralNodes=*/false );
+ vTool.SetExternalNormal();
+ const int nextShift = vTool.IsForward() ? +1 : -1;
+ list< int >::iterator ind = freeInd.begin();
+ list< const SMDS_MeshElement* >::iterator srcEdge = srcEdges.begin();
+ for ( ; ind != freeInd.end(); ++ind, ++srcEdge ) // loop on free faces
+ {
+ const SMDS_MeshNode** nodes = vTool.GetFaceNodes( *ind );
+ int nbn = vTool.NbFaceNodes( *ind );
+ const SMDS_MeshElement * f = 0;
+ if ( nbn == 3 ) ///// triangle
+ {
+ f = aMesh->FindFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ]);
+ if ( !f ||
+ nodes[ 1 ] != f->GetNodeWrap( f->GetNodeIndex( nodes[ 0 ]) + nextShift ))
+ {
+ const SMDS_MeshNode* newOrder[3] = { nodes[ 1 - nextShift ],
+ nodes[ 1 ],
+ nodes[ 1 + nextShift ] };
+ if ( f )
+ aMesh->ChangeElementNodes( f, &newOrder[0], nbn );
+ else
+ myLastCreatedElems.Append(aMesh->AddFace( newOrder[ 0 ], newOrder[ 1 ],
+ newOrder[ 2 ] ));
+ }
+ }
+ else if ( nbn == 4 ) ///// quadrangle
+ {
+ f = aMesh->FindFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ], nodes[ 3 ]);
+ if ( !f ||
+ nodes[ 1 ] != f->GetNodeWrap( f->GetNodeIndex( nodes[ 0 ]) + nextShift ))
+ {
+ const SMDS_MeshNode* newOrder[4] = { nodes[ 0 ], nodes[ 2-nextShift ],
+ nodes[ 2 ], nodes[ 2+nextShift ] };
+ if ( f )
+ aMesh->ChangeElementNodes( f, &newOrder[0], nbn );
+ else
+ myLastCreatedElems.Append(aMesh->AddFace( newOrder[ 0 ], newOrder[ 1 ],
+ newOrder[ 2 ], newOrder[ 3 ]));
+ }
+ }
+ else if ( nbn == 6 && isQuadratic ) /////// quadratic triangle
+ {
+ f = aMesh->FindFace( nodes[0], nodes[2], nodes[4], nodes[1], nodes[3], nodes[5] );
+ if ( !f ||
+ nodes[2] != f->GetNodeWrap( f->GetNodeIndex( nodes[0] ) + 2*nextShift ))
+ {
+ const SMDS_MeshNode* newOrder[6] = { nodes[2 - 2*nextShift],
+ nodes[2],
+ nodes[2 + 2*nextShift],
+ nodes[3 - 2*nextShift],
+ nodes[3],
+ nodes[3 + 2*nextShift]};
+ if ( f )
+ aMesh->ChangeElementNodes( f, &newOrder[0], nbn );
+ else
+ myLastCreatedElems.Append(aMesh->AddFace( newOrder[ 0 ],
+ newOrder[ 1 ],
+ newOrder[ 2 ],
+ newOrder[ 3 ],
+ newOrder[ 4 ],
+ newOrder[ 5 ] ));
+ }
+ }
+ else if ( nbn == 8 && isQuadratic ) /////// quadratic quadrangle
+ {
+ f = aMesh->FindFace( nodes[0], nodes[2], nodes[4], nodes[6],
+ nodes[1], nodes[3], nodes[5], nodes[7] );
+ if ( !f ||
+ nodes[ 2 ] != f->GetNodeWrap( f->GetNodeIndex( nodes[ 0 ] ) + 2*nextShift ))
+ {
+ const SMDS_MeshNode* newOrder[8] = { nodes[0],
+ nodes[4 - 2*nextShift],
+ nodes[4],
+ nodes[4 + 2*nextShift],
+ nodes[1],
+ nodes[5 - 2*nextShift],
+ nodes[5],
+ nodes[5 + 2*nextShift] };
+ if ( f )
+ aMesh->ChangeElementNodes( f, &newOrder[0], nbn );
+ else
+ myLastCreatedElems.Append(aMesh->AddFace(newOrder[ 0 ], newOrder[ 1 ],
+ newOrder[ 2 ], newOrder[ 3 ],
+ newOrder[ 4 ], newOrder[ 5 ],
+ newOrder[ 6 ], newOrder[ 7 ]));
+ }
+ }
+ else if ( nbn == 9 && isQuadratic ) /////// bi-quadratic quadrangle
+ {
+ f = aMesh->FindElement( vector<const SMDS_MeshNode*>( nodes, nodes+nbn ),
+ SMDSAbs_Face, /*noMedium=*/false);
+ if ( !f ||
+ nodes[ 2 ] != f->GetNodeWrap( f->GetNodeIndex( nodes[ 0 ] ) + 2*nextShift ))
+ {
+ const SMDS_MeshNode* newOrder[9] = { nodes[0],
+ nodes[4 - 2*nextShift],
+ nodes[4],
+ nodes[4 + 2*nextShift],
+ nodes[1],
+ nodes[5 - 2*nextShift],
+ nodes[5],
+ nodes[5 + 2*nextShift],
+ nodes[8] };
+ if ( f )
+ aMesh->ChangeElementNodes( f, &newOrder[0], nbn );
+ else
+ myLastCreatedElems.Append(aMesh->AddFace(newOrder[ 0 ], newOrder[ 1 ],
+ newOrder[ 2 ], newOrder[ 3 ],
+ newOrder[ 4 ], newOrder[ 5 ],
+ newOrder[ 6 ], newOrder[ 7 ],
+ newOrder[ 8 ]));
+ }
+ }
+ else //////// polygon
+ {
+ vector<const SMDS_MeshNode*> polygon_nodes ( nodes, nodes+nbn );
+ const SMDS_MeshFace * f = aMesh->FindFace( polygon_nodes );
+ if ( !f ||
+ nodes[ 1 ] != f->GetNodeWrap( f->GetNodeIndex( nodes[ 0 ] ) + nextShift ))
+ {
+ if ( !vTool.IsForward() )
+ std::reverse( polygon_nodes.begin(), polygon_nodes.end());
+ if ( f )
+ aMesh->ChangeElementNodes( f, &polygon_nodes[0], nbn );
+ else
+ AddElement(polygon_nodes, SMDSAbs_Face, polygon_nodes.size()>4);
+ }
+ }
- // find transformed nodes
- vector<const SMDS_MeshNode*> nodes(nbNodes);
- int iNode = 0;
- SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- while ( itN->more() ) {
- const SMDS_MeshNode* node =
- static_cast<const SMDS_MeshNode*>( itN->next() );
- TNodeNodeMap::iterator nodeMapIt = nodeMap.find( node );
- if ( nodeMapIt == nodeMap.end() )
- break; // not all nodes transformed
- nodes[ i [ iNode++ ]] = (*nodeMapIt).second;
- }
- if ( iNode != nbNodes )
- continue; // not all nodes transformed
+ while ( srcElements.Length() < myLastCreatedElems.Length() )
+ srcElements.Append( *srcEdge );
- if ( theTargetMesh ) {
- if ( SMDS_MeshElement* copy =
- targetMeshEditor.AddElement( nodes, elem->GetType(), elem->IsPoly() )) {
- myLastCreatedElems.Append( copy );
- srcElems.Append( elem );
- }
- }
- else if ( theCopy ) {
- if ( SMDS_MeshElement* copy = AddElement( nodes, elem->GetType(), elem->IsPoly() )) {
- myLastCreatedElems.Append( copy );
- srcElems.Append( elem );
- }
- }
- else {
- // reverse element as it was reversed by transformation
- if ( nbNodes > 2 )
- aMesh->ChangeElementNodes( elem, &nodes[0], nbNodes );
- }
- }
+ } // loop on free faces
- PGroupIDs newGroupIDs;
+ // go to the next volume
+ iVol = 0;
+ while ( iVol++ < nbVolumesByStep ) v++;
- if ( theMakeGroups && theCopy ||
- theMakeGroups && theTargetMesh )
- newGroupIDs = generateGroups( srcNodes, srcElems, groupPostfix, theTargetMesh );
+ } // loop on steps
+ } // loop on volumes of one step
+ } // sweep free links into faces
- return newGroupIDs;
+ // Make a ceiling face with a normal external to a volume
+
+ SMDS_VolumeTool lastVol( itElem->second.back(), /*ignoreCentralNodes=*/false );
+
+ int iF = lastVol.GetFaceIndex( aFaceLastNodes );
+ if ( iF >= 0 ) {
+ lastVol.SetExternalNormal();
+ const SMDS_MeshNode** nodes = lastVol.GetFaceNodes( iF );
+ int nbn = lastVol.NbFaceNodes( iF );
+ if ( nbn == 3 ) {
+ if (!hasFreeLinks ||
+ !aMesh->FindFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ]))
+ myLastCreatedElems.Append(aMesh->AddFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ] ));
+ }
+ else if ( nbn == 4 )
+ {
+ if (!hasFreeLinks ||
+ !aMesh->FindFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ], nodes[ 3 ]))
+ myLastCreatedElems.Append(aMesh->AddFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ], nodes[ 3 ]));
+ }
+ else if ( nbn == 6 && isQuadratic )
+ {
+ if (!hasFreeLinks ||
+ !aMesh->FindFace(nodes[0], nodes[2], nodes[4], nodes[1], nodes[3], nodes[5]) )
+ myLastCreatedElems.Append(aMesh->AddFace(nodes[0], nodes[2], nodes[4],
+ nodes[1], nodes[3], nodes[5]));
+ }
+ else if ( nbn == 8 && isQuadratic )
+ {
+ if (!hasFreeLinks ||
+ !aMesh->FindFace(nodes[0], nodes[2], nodes[4], nodes[6],
+ nodes[1], nodes[3], nodes[5], nodes[7]) )
+ myLastCreatedElems.Append(aMesh->AddFace(nodes[0], nodes[2], nodes[4], nodes[6],
+ nodes[1], nodes[3], nodes[5], nodes[7]));
+ }
+ else if ( nbn == 9 && isQuadratic )
+ {
+ if (!hasFreeLinks ||
+ !aMesh->FindElement(vector<const SMDS_MeshNode*>( nodes, nodes+nbn ),
+ SMDSAbs_Face, /*noMedium=*/false) )
+ myLastCreatedElems.Append(aMesh->AddFace(nodes[0], nodes[2], nodes[4], nodes[6],
+ nodes[1], nodes[3], nodes[5], nodes[7],
+ nodes[8]));
+ }
+ else {
+ vector<const SMDS_MeshNode*> polygon_nodes ( nodes, nodes + nbn );
+ if (!hasFreeLinks || !aMesh->FindFace(polygon_nodes))
+ myLastCreatedElems.Append(aMesh->AddPolygonalFace(polygon_nodes));
+ }
+
+ while ( srcElements.Length() < myLastCreatedElems.Length() )
+ srcElements.Append( myLastCreatedElems.Last() );
+ }
+ } // loop on swept elements
}
//=======================================================================
-/*!
- * \brief Create groups of elements made during transformation
- * \param nodeGens - nodes making corresponding myLastCreatedNodes
- * \param elemGens - elements making corresponding myLastCreatedElems
- * \param postfix - to append to names of new groups
- */
+//function : RotationSweep
+//purpose :
//=======================================================================
SMESH_MeshEditor::PGroupIDs
-SMESH_MeshEditor::generateGroups(const SMESH_SequenceOfElemPtr& nodeGens,
- const SMESH_SequenceOfElemPtr& elemGens,
- const std::string& postfix,
- SMESH_Mesh* targetMesh)
+SMESH_MeshEditor::RotationSweep(TIDSortedElemSet & theElems,
+ const gp_Ax1& theAxis,
+ const double theAngle,
+ const int theNbSteps,
+ const double theTol,
+ const bool theMakeGroups,
+ const bool theMakeWalls)
{
- PGroupIDs newGroupIDs( new list<int> );
- SMESH_Mesh* mesh = targetMesh ? targetMesh : GetMesh();
+ myLastCreatedElems.Clear();
+ myLastCreatedNodes.Clear();
- // Sort existing groups by types and collect their names
+ // source elements for each generated one
+ SMESH_SequenceOfElemPtr srcElems, srcNodes;
- // to store an old group and a generated new one
- typedef pair< SMESHDS_GroupBase*, SMDS_MeshGroup* > TOldNewGroup;
- vector< list< TOldNewGroup > > groupsByType( SMDSAbs_NbElementTypes );
- // group names
- set< string > groupNames;
- //
- SMDS_MeshGroup* nullNewGroup = (SMDS_MeshGroup*) 0;
- SMESH_Mesh::GroupIteratorPtr groupIt = GetMesh()->GetGroups();
- while ( groupIt->more() ) {
- SMESH_Group * group = groupIt->next();
- if ( !group ) continue;
- SMESHDS_GroupBase* groupDS = group->GetGroupDS();
- if ( !groupDS || groupDS->IsEmpty() ) continue;
- groupNames.insert( group->GetName() );
- groupDS->SetStoreName( group->GetName() );
- groupsByType[ groupDS->GetType() ].push_back( make_pair( groupDS, nullNewGroup ));
- }
+ MESSAGE( "RotationSweep()");
+ gp_Trsf aTrsf;
+ aTrsf.SetRotation( theAxis, theAngle );
+ gp_Trsf aTrsf2;
+ aTrsf2.SetRotation( theAxis, theAngle/2. );
- // Groups creation
+ gp_Lin aLine( theAxis );
+ double aSqTol = theTol * theTol;
- // loop on nodes and elements
- for ( int isNodes = 0; isNodes < 2; ++isNodes )
- {
- const SMESH_SequenceOfElemPtr& gens = isNodes ? nodeGens : elemGens;
- const SMESH_SequenceOfElemPtr& elems = isNodes ? myLastCreatedNodes : myLastCreatedElems;
- if ( gens.Length() != elems.Length() )
- throw SALOME_Exception(LOCALIZED("invalid args"));
+ SMESHDS_Mesh* aMesh = GetMeshDS();
- // loop on created elements
- for (int iElem = 1; iElem <= elems.Length(); ++iElem )
+ TNodeOfNodeListMap mapNewNodes;
+ TElemOfVecOfNnlmiMap mapElemNewNodes;
+ TElemOfElemListMap newElemsMap;
+
+ const bool isQuadraticMesh = bool( myMesh->NbEdges(ORDER_QUADRATIC) +
+ myMesh->NbFaces(ORDER_QUADRATIC) +
+ myMesh->NbVolumes(ORDER_QUADRATIC) );
+ // loop on theElems
+ TIDSortedElemSet::iterator itElem;
+ for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ ) {
+ const SMDS_MeshElement* elem = *itElem;
+ if ( !elem || elem->GetType() == SMDSAbs_Volume )
+ continue;
+ vector<TNodeOfNodeListMapItr> & newNodesItVec = mapElemNewNodes[ elem ];
+ newNodesItVec.reserve( elem->NbNodes() );
+
+ // loop on elem nodes
+ SMDS_ElemIteratorPtr itN = elem->nodesIterator();
+ while ( itN->more() )
{
- const SMDS_MeshElement* sourceElem = gens( iElem );
- if ( !sourceElem ) {
- MESSAGE("generateGroups(): NULL source element");
- continue;
- }
- list< TOldNewGroup > & groupsOldNew = groupsByType[ sourceElem->GetType() ];
- if ( groupsOldNew.empty() ) {
- while ( iElem < gens.Length() && gens( iElem+1 ) == sourceElem )
- ++iElem; // skip all elements made by sourceElem
- continue;
- }
- // collect all elements made by sourceElem
- list< const SMDS_MeshElement* > resultElems;
- if ( const SMDS_MeshElement* resElem = elems( iElem ))
- if ( resElem != sourceElem )
- resultElems.push_back( resElem );
- while ( iElem < gens.Length() && gens( iElem+1 ) == sourceElem )
- if ( const SMDS_MeshElement* resElem = elems( ++iElem ))
- if ( resElem != sourceElem )
- resultElems.push_back( resElem );
- // do not generate element groups from node ones
- if ( sourceElem->GetType() == SMDSAbs_Node &&
- elems( iElem )->GetType() != SMDSAbs_Node )
- continue;
+ // check if a node has been already sweeped
+ const SMDS_MeshNode* node = cast2Node( itN->next() );
- // add resultElems to groups made by ones the sourceElem belongs to
- list< TOldNewGroup >::iterator gOldNew, gLast = groupsOldNew.end();
- for ( gOldNew = groupsOldNew.begin(); gOldNew != gLast; ++gOldNew )
+ gp_XYZ aXYZ( node->X(), node->Y(), node->Z() );
+ double coord[3];
+ aXYZ.Coord( coord[0], coord[1], coord[2] );
+ bool isOnAxis = ( aLine.SquareDistance( aXYZ ) <= aSqTol );
+
+ TNodeOfNodeListMapItr nIt =
+ mapNewNodes.insert( make_pair( node, list<const SMDS_MeshNode*>() )).first;
+ list<const SMDS_MeshNode*>& listNewNodes = nIt->second;
+ if ( listNewNodes.empty() )
{
- SMESHDS_GroupBase* oldGroup = gOldNew->first;
- if ( oldGroup->Contains( sourceElem )) // sourceElem in oldGroup
+ // check if we are to create medium nodes between corner ones
+ bool needMediumNodes = false;
+ if ( isQuadraticMesh )
{
- SMDS_MeshGroup* & newGroup = gOldNew->second;
- if ( !newGroup )// create a new group
+ SMDS_ElemIteratorPtr it = node->GetInverseElementIterator();
+ while (it->more() && !needMediumNodes )
{
- // make a name
- string name = oldGroup->GetStoreName();
- if ( !targetMesh ) {
- name += "_";
- name += postfix;
- int nb = 0;
- while ( !groupNames.insert( name ).second ) // name exists
- {
- if ( nb == 0 ) {
- name += "_1";
- }
- else {
- TCollection_AsciiString nbStr(nb+1);
- name.resize( name.rfind('_')+1 );
- name += nbStr.ToCString();
- }
- ++nb;
- }
- }
- // make a group
- int id;
- SMESH_Group* group = mesh->AddGroup( resultElems.back()->GetType(),
- name.c_str(), id );
- SMESHDS_Group* groupDS = static_cast<SMESHDS_Group*>(group->GetGroupDS());
- newGroup = & groupDS->SMDSGroup();
- newGroupIDs->push_back( id );
+ const SMDS_MeshElement* invElem = it->next();
+ if ( invElem != elem && !theElems.count( invElem )) continue;
+ needMediumNodes = ( invElem->IsQuadratic() && !invElem->IsMediumNode(node) );
+ if ( !needMediumNodes && invElem->GetEntityType() == SMDSEntity_BiQuad_Quadrangle )
+ needMediumNodes = true;
}
+ }
- // fill in a new group
- list< const SMDS_MeshElement* >::iterator resLast = resultElems.end(), resElemIt;
- for ( resElemIt = resultElems.begin(); resElemIt != resLast; ++resElemIt )
- newGroup->Add( *resElemIt );
+ // make new nodes
+ const SMDS_MeshNode * newNode = node;
+ for ( int i = 0; i < theNbSteps; i++ ) {
+ if ( !isOnAxis ) {
+ if ( needMediumNodes ) // create a medium node
+ {
+ aTrsf2.Transforms( coord[0], coord[1], coord[2] );
+ newNode = aMesh->AddNode( coord[0], coord[1], coord[2] );
+ myLastCreatedNodes.Append(newNode);
+ srcNodes.Append( node );
+ listNewNodes.push_back( newNode );
+ aTrsf2.Transforms( coord[0], coord[1], coord[2] );
+ }
+ else {
+ aTrsf.Transforms( coord[0], coord[1], coord[2] );
+ }
+ // create a corner node
+ newNode = aMesh->AddNode( coord[0], coord[1], coord[2] );
+ myLastCreatedNodes.Append(newNode);
+ srcNodes.Append( node );
+ listNewNodes.push_back( newNode );
+ }
+ else {
+ listNewNodes.push_back( newNode );
+ // if ( needMediumNodes )
+ // listNewNodes.push_back( newNode );
+ }
}
}
- } // loop on created elements
- }// loop on nodes and elements
+ newNodesItVec.push_back( nIt );
+ }
+ // make new elements
+ sweepElement( elem, newNodesItVec, newElemsMap[elem], theNbSteps, srcElems );
+ }
+
+ if ( theMakeWalls )
+ makeWalls( mapNewNodes, newElemsMap, mapElemNewNodes, theElems, theNbSteps, srcElems );
+
+ PGroupIDs newGroupIDs;
+ if ( theMakeGroups )
+ newGroupIDs = generateGroups( srcNodes, srcElems, "rotated");
return newGroupIDs;
}
+
//=======================================================================
-//function : FindCoincidentNodes
-//purpose : Return list of group of nodes close to each other within theTolerance
-// Search among theNodes or in the whole mesh if theNodes is empty using
-// an Octree algorithm
+//function : CreateNode
+//purpose :
//=======================================================================
-
-void SMESH_MeshEditor::FindCoincidentNodes (set<const SMDS_MeshNode*> & theNodes,
- const double theTolerance,
- TListOfListOfNodes & theGroupsOfNodes)
+const SMDS_MeshNode* SMESH_MeshEditor::CreateNode(const double x,
+ const double y,
+ const double z,
+ const double tolnode,
+ SMESH_SequenceOfNode& aNodes)
{
- myLastCreatedElems.Clear();
- myLastCreatedNodes.Clear();
+ // myLastCreatedElems.Clear();
+ // myLastCreatedNodes.Clear();
- set<const SMDS_MeshNode*> nodes;
- if ( theNodes.empty() )
- { // get all nodes in the mesh
- SMDS_NodeIteratorPtr nIt = GetMeshDS()->nodesIterator();
- while ( nIt->more() )
- nodes.insert( nodes.end(),nIt->next());
+ gp_Pnt P1(x,y,z);
+ SMESHDS_Mesh * aMesh = myMesh->GetMeshDS();
+
+ // try to search in sequence of existing nodes
+ // if aNodes.Length()>0 we 'nave to use given sequence
+ // else - use all nodes of mesh
+ if(aNodes.Length()>0) {
+ int i;
+ for(i=1; i<=aNodes.Length(); i++) {
+ gp_Pnt P2(aNodes.Value(i)->X(),aNodes.Value(i)->Y(),aNodes.Value(i)->Z());
+ if(P1.Distance(P2)<tolnode)
+ return aNodes.Value(i);
+ }
+ }
+ else {
+ SMDS_NodeIteratorPtr itn = aMesh->nodesIterator();
+ while(itn->more()) {
+ const SMDS_MeshNode* aN = static_cast<const SMDS_MeshNode*> (itn->next());
+ gp_Pnt P2(aN->X(),aN->Y(),aN->Z());
+ if(P1.Distance(P2)<tolnode)
+ return aN;
+ }
}
- else
- nodes=theNodes;
- SMESH_OctreeNode::FindCoincidentNodes ( nodes, &theGroupsOfNodes, theTolerance);
+ // create new node and return it
+ const SMDS_MeshNode* NewNode = aMesh->AddNode(x,y,z);
+ //myLastCreatedNodes.Append(NewNode);
+ return NewNode;
}
+
//=======================================================================
-/*!
- * \brief Implementation of search for the node closest to point
- */
+//function : ExtrusionSweep
+//purpose :
//=======================================================================
-struct SMESH_NodeSearcherImpl: public SMESH_NodeSearcher
+SMESH_MeshEditor::PGroupIDs
+SMESH_MeshEditor::ExtrusionSweep (TIDSortedElemSet & theElems,
+ const gp_Vec& theStep,
+ const int theNbSteps,
+ TElemOfElemListMap& newElemsMap,
+ const bool theMakeGroups,
+ const int theFlags,
+ const double theTolerance)
{
- /*!
- * \brief Constructor
- */
- SMESH_NodeSearcherImpl( const SMESHDS_Mesh* theMesh )
- {
- set<const SMDS_MeshNode*> nodes;
- if ( theMesh ) {
- SMDS_NodeIteratorPtr nIt = theMesh->nodesIterator();
- while ( nIt->more() )
- nodes.insert( nodes.end(), nIt->next() );
- }
- myOctreeNode = new SMESH_OctreeNode(nodes) ;
- }
- /*!
- * \brief Do it's job
- */
- const SMDS_MeshNode* FindClosestTo( const gp_Pnt& thePnt )
- {
- SMDS_MeshNode tgtNode( thePnt.X(), thePnt.Y(), thePnt.Z() );
- list<const SMDS_MeshNode*> nodes;
- const double precision = 1e-6;
- myOctreeNode->NodesAround( &tgtNode, &nodes, precision );
+ ExtrusParam aParams;
+ aParams.myDir = gp_Dir(theStep);
+ aParams.myNodes.Clear();
+ aParams.mySteps = new TColStd_HSequenceOfReal;
+ int i;
+ for(i=1; i<=theNbSteps; i++)
+ aParams.mySteps->Append(theStep.Magnitude());
- double minSqDist = DBL_MAX;
- Bnd_B3d box;
- if ( nodes.empty() ) // get all nodes of OctreeNode's closest to thePnt
+ return
+ ExtrusionSweep(theElems,aParams,newElemsMap,theMakeGroups,theFlags,theTolerance);
+}
+
+
+//=======================================================================
+//function : ExtrusionSweep
+//purpose :
+//=======================================================================
+
+SMESH_MeshEditor::PGroupIDs
+SMESH_MeshEditor::ExtrusionSweep (TIDSortedElemSet & theElems,
+ ExtrusParam& theParams,
+ TElemOfElemListMap& newElemsMap,
+ const bool theMakeGroups,
+ const int theFlags,
+ const double theTolerance)
+{
+ myLastCreatedElems.Clear();
+ myLastCreatedNodes.Clear();
+
+ // source elements for each generated one
+ SMESH_SequenceOfElemPtr srcElems, srcNodes;
+
+ SMESHDS_Mesh* aMesh = GetMeshDS();
+
+ int nbsteps = theParams.mySteps->Length();
+
+ TNodeOfNodeListMap mapNewNodes;
+ //TNodeOfNodeVecMap mapNewNodes;
+ TElemOfVecOfNnlmiMap mapElemNewNodes;
+ //TElemOfVecOfMapNodesMap mapElemNewNodes;
+
+ const bool isQuadraticMesh = bool( myMesh->NbEdges(ORDER_QUADRATIC) +
+ myMesh->NbFaces(ORDER_QUADRATIC) +
+ myMesh->NbVolumes(ORDER_QUADRATIC) );
+ // loop on theElems
+ TIDSortedElemSet::iterator itElem;
+ for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ ) {
+ // check element type
+ const SMDS_MeshElement* elem = *itElem;
+ if ( !elem || elem->GetType() == SMDSAbs_Volume )
+ continue;
+
+ vector<TNodeOfNodeListMapItr> & newNodesItVec = mapElemNewNodes[ elem ];
+ newNodesItVec.reserve( elem->NbNodes() );
+
+ // loop on elem nodes
+ SMDS_ElemIteratorPtr itN = elem->nodesIterator();
+ while ( itN->more() )
{
- // sort leafs by their distance from thePnt
- typedef map< double, SMESH_OctreeNode* > TDistTreeMap;
- TDistTreeMap treeMap;
- list< SMESH_OctreeNode* > treeList;
- list< SMESH_OctreeNode* >::iterator trIt;
- treeList.push_back( myOctreeNode );
- for ( trIt = treeList.begin(); trIt != treeList.end(); ++trIt)
+ // check if a node has been already sweeped
+ const SMDS_MeshNode* node = cast2Node( itN->next() );
+ TNodeOfNodeListMap::iterator nIt =
+ mapNewNodes.insert( make_pair( node, list<const SMDS_MeshNode*>() )).first;
+ list<const SMDS_MeshNode*>& listNewNodes = nIt->second;
+ if ( listNewNodes.empty() )
{
- SMESH_OctreeNode* tree = *trIt;
- if ( !tree->isLeaf() ) { // put children to the queue
- SMESH_OctreeNodeIteratorPtr cIt = tree->GetChildrenIterator();
- while ( cIt->more() )
- treeList.push_back( cIt->next() );
+ // make new nodes
+
+ // check if we are to create medium nodes between corner ones
+ bool needMediumNodes = false;
+ if ( isQuadraticMesh )
+ {
+ SMDS_ElemIteratorPtr it = node->GetInverseElementIterator();
+ while (it->more() && !needMediumNodes )
+ {
+ const SMDS_MeshElement* invElem = it->next();
+ if ( invElem != elem && !theElems.count( invElem )) continue;
+ needMediumNodes = ( invElem->IsQuadratic() && !invElem->IsMediumNode(node) );
+ if ( !needMediumNodes && invElem->GetEntityType() == SMDSEntity_BiQuad_Quadrangle )
+ needMediumNodes = true;
+ }
}
- else if ( tree->NbNodes() ) { // put tree to treeMap
- tree->getBox( box );
- double sqDist = thePnt.SquareDistance( 0.5 * ( box.CornerMin() + box.CornerMax() ));
- pair<TDistTreeMap::iterator,bool> it_in = treeMap.insert( make_pair( sqDist, tree ));
- if ( !it_in.second ) // not unique distance to box center
- treeMap.insert( it_in.first, make_pair( sqDist - 1e-13*treeMap.size(), tree ));
+
+ double coord[] = { node->X(), node->Y(), node->Z() };
+ for ( int i = 0; i < nbsteps; i++ )
+ {
+ if ( needMediumNodes ) // create a medium node
+ {
+ double x = coord[0] + theParams.myDir.X()*theParams.mySteps->Value(i+1)/2.;
+ double y = coord[1] + theParams.myDir.Y()*theParams.mySteps->Value(i+1)/2.;
+ double z = coord[2] + theParams.myDir.Z()*theParams.mySteps->Value(i+1)/2.;
+ if( theFlags & EXTRUSION_FLAG_SEW ) {
+ const SMDS_MeshNode * newNode = CreateNode(x, y, z,
+ theTolerance, theParams.myNodes);
+ listNewNodes.push_back( newNode );
+ }
+ else {
+ const SMDS_MeshNode * newNode = aMesh->AddNode(x, y, z);
+ myLastCreatedNodes.Append(newNode);
+ srcNodes.Append( node );
+ listNewNodes.push_back( newNode );
+ }
+ }
+ // create a corner node
+ coord[0] = coord[0] + theParams.myDir.X()*theParams.mySteps->Value(i+1);
+ coord[1] = coord[1] + theParams.myDir.Y()*theParams.mySteps->Value(i+1);
+ coord[2] = coord[2] + theParams.myDir.Z()*theParams.mySteps->Value(i+1);
+ if( theFlags & EXTRUSION_FLAG_SEW ) {
+ const SMDS_MeshNode * newNode = CreateNode(coord[0], coord[1], coord[2],
+ theTolerance, theParams.myNodes);
+ listNewNodes.push_back( newNode );
+ }
+ else {
+ const SMDS_MeshNode * newNode = aMesh->AddNode( coord[0], coord[1], coord[2] );
+ myLastCreatedNodes.Append(newNode);
+ srcNodes.Append( node );
+ listNewNodes.push_back( newNode );
+ }
}
}
- // find distance after which there is no sense to check tree's
- double sqLimit = DBL_MAX;
- TDistTreeMap::iterator sqDist_tree = treeMap.begin();
- if ( treeMap.size() > 5 ) {
- SMESH_OctreeNode* closestTree = sqDist_tree->second;
- closestTree->getBox( box );
- double limit = sqrt( sqDist_tree->first ) + sqrt ( box.SquareExtent() );
- sqLimit = limit * limit;
- }
- // get all nodes from trees
- for ( ; sqDist_tree != treeMap.end(); ++sqDist_tree) {
- if ( sqDist_tree->first > sqLimit )
- break;
- SMESH_OctreeNode* tree = sqDist_tree->second;
- tree->NodesAround( tree->GetNodeIterator()->next(), &nodes );
- }
- }
- // find closest among nodes
- minSqDist = DBL_MAX;
- const SMDS_MeshNode* closestNode = 0;
- list<const SMDS_MeshNode*>::iterator nIt = nodes.begin();
- for ( ; nIt != nodes.end(); ++nIt ) {
- double sqDist = thePnt.SquareDistance( TNodeXYZ( *nIt ) );
- if ( minSqDist > sqDist ) {
- closestNode = *nIt;
- minSqDist = sqDist;
- }
+ newNodesItVec.push_back( nIt );
}
- return closestNode;
+ // make new elements
+ sweepElement( elem, newNodesItVec, newElemsMap[elem], nbsteps, srcElems );
}
- /*!
- * \brief Destructor
- */
- ~SMESH_NodeSearcherImpl() { delete myOctreeNode; }
-private:
- SMESH_OctreeNode* myOctreeNode;
-};
-//=======================================================================
-/*!
- * \brief Return SMESH_NodeSearcher
- */
-//=======================================================================
+ if( theFlags & EXTRUSION_FLAG_BOUNDARY ) {
+ makeWalls( mapNewNodes, newElemsMap, mapElemNewNodes, theElems, nbsteps, srcElems );
+ }
+ PGroupIDs newGroupIDs;
+ if ( theMakeGroups )
+ newGroupIDs = generateGroups( srcNodes, srcElems, "extruded");
-SMESH_NodeSearcher* SMESH_MeshEditor::GetNodeSearcher()
-{
- return new SMESH_NodeSearcherImpl( GetMeshDS() );
+ return newGroupIDs;
}
//=======================================================================
-//function : SimplifyFace
+//function : ExtrusionAlongTrack
//purpose :
//=======================================================================
-int SMESH_MeshEditor::SimplifyFace (const vector<const SMDS_MeshNode *> faceNodes,
- vector<const SMDS_MeshNode *>& poly_nodes,
- vector<int>& quantities) const
+SMESH_MeshEditor::Extrusion_Error
+SMESH_MeshEditor::ExtrusionAlongTrack (TIDSortedElemSet & theElements,
+ SMESH_subMesh* theTrack,
+ const SMDS_MeshNode* theN1,
+ const bool theHasAngles,
+ list<double>& theAngles,
+ const bool theLinearVariation,
+ const bool theHasRefPoint,
+ const gp_Pnt& theRefPoint,
+ const bool theMakeGroups)
{
- int nbNodes = faceNodes.size();
+ MESSAGE("ExtrusionAlongTrack");
+ myLastCreatedElems.Clear();
+ myLastCreatedNodes.Clear();
- if (nbNodes < 3)
- return 0;
+ int aNbE;
+ std::list<double> aPrms;
+ TIDSortedElemSet::iterator itElem;
- set<const SMDS_MeshNode*> nodeSet;
+ gp_XYZ aGC;
+ TopoDS_Edge aTrackEdge;
+ TopoDS_Vertex aV1, aV2;
- // get simple seq of nodes
- //const SMDS_MeshNode* simpleNodes[ nbNodes ];
- vector<const SMDS_MeshNode*> simpleNodes( nbNodes );
- int iSimple = 0, nbUnique = 0;
+ SMDS_ElemIteratorPtr aItE;
+ SMDS_NodeIteratorPtr aItN;
+ SMDSAbs_ElementType aTypeE;
- simpleNodes[iSimple++] = faceNodes[0];
- nbUnique++;
- for (int iCur = 1; iCur < nbNodes; iCur++) {
- if (faceNodes[iCur] != simpleNodes[iSimple - 1]) {
- simpleNodes[iSimple++] = faceNodes[iCur];
- if (nodeSet.insert( faceNodes[iCur] ).second)
- nbUnique++;
- }
- }
- int nbSimple = iSimple;
- if (simpleNodes[nbSimple - 1] == simpleNodes[0]) {
- nbSimple--;
- iSimple--;
- }
+ TNodeOfNodeListMap mapNewNodes;
- if (nbUnique < 3)
- return 0;
+ // 1. Check data
+ aNbE = theElements.size();
+ // nothing to do
+ if ( !aNbE )
+ return EXTR_NO_ELEMENTS;
- // separate loops
- int nbNew = 0;
- bool foundLoop = (nbSimple > nbUnique);
- while (foundLoop) {
- foundLoop = false;
- set<const SMDS_MeshNode*> loopSet;
- for (iSimple = 0; iSimple < nbSimple && !foundLoop; iSimple++) {
- const SMDS_MeshNode* n = simpleNodes[iSimple];
- if (!loopSet.insert( n ).second) {
- foundLoop = true;
+ // 1.1 Track Pattern
+ ASSERT( theTrack );
- // separate loop
- int iC = 0, curLast = iSimple;
- for (; iC < curLast; iC++) {
- if (simpleNodes[iC] == n) break;
- }
- int loopLen = curLast - iC;
- if (loopLen > 2) {
- // create sub-element
- nbNew++;
- quantities.push_back(loopLen);
- for (; iC < curLast; iC++) {
- poly_nodes.push_back(simpleNodes[iC]);
- }
- }
- // shift the rest nodes (place from the first loop position)
- for (iC = curLast + 1; iC < nbSimple; iC++) {
- simpleNodes[iC - loopLen] = simpleNodes[iC];
+ SMESHDS_SubMesh* pSubMeshDS = theTrack->GetSubMeshDS();
+
+ aItE = pSubMeshDS->GetElements();
+ while ( aItE->more() ) {
+ const SMDS_MeshElement* pE = aItE->next();
+ aTypeE = pE->GetType();
+ // Pattern must contain links only
+ if ( aTypeE != SMDSAbs_Edge )
+ return EXTR_PATH_NOT_EDGE;
+ }
+
+ list<SMESH_MeshEditor_PathPoint> fullList;
+
+ const TopoDS_Shape& aS = theTrack->GetSubShape();
+ // Sub-shape for the Pattern must be an Edge or Wire
+ if( aS.ShapeType() == TopAbs_EDGE ) {
+ aTrackEdge = TopoDS::Edge( aS );
+ // the Edge must not be degenerated
+ if ( BRep_Tool::Degenerated( aTrackEdge ) )
+ return EXTR_BAD_PATH_SHAPE;
+ TopExp::Vertices( aTrackEdge, aV1, aV2 );
+ aItN = theTrack->GetFather()->GetSubMesh( aV1 )->GetSubMeshDS()->GetNodes();
+ const SMDS_MeshNode* aN1 = aItN->next();
+ aItN = theTrack->GetFather()->GetSubMesh( aV2 )->GetSubMeshDS()->GetNodes();
+ const SMDS_MeshNode* aN2 = aItN->next();
+ // starting node must be aN1 or aN2
+ if ( !( aN1 == theN1 || aN2 == theN1 ) )
+ return EXTR_BAD_STARTING_NODE;
+ aItN = pSubMeshDS->GetNodes();
+ while ( aItN->more() ) {
+ const SMDS_MeshNode* pNode = aItN->next();
+ const SMDS_EdgePosition* pEPos =
+ static_cast<const SMDS_EdgePosition*>( pNode->GetPosition() );
+ double aT = pEPos->GetUParameter();
+ aPrms.push_back( aT );
+ }
+ //Extrusion_Error err =
+ MakeEdgePathPoints(aPrms, aTrackEdge, (aN1==theN1), fullList);
+ } else if( aS.ShapeType() == TopAbs_WIRE ) {
+ list< SMESH_subMesh* > LSM;
+ TopTools_SequenceOfShape Edges;
+ SMESH_subMeshIteratorPtr itSM = theTrack->getDependsOnIterator(false,true);
+ while(itSM->more()) {
+ SMESH_subMesh* SM = itSM->next();
+ LSM.push_back(SM);
+ const TopoDS_Shape& aS = SM->GetSubShape();
+ Edges.Append(aS);
+ }
+ list< list<SMESH_MeshEditor_PathPoint> > LLPPs;
+ int startNid = theN1->GetID();
+ TColStd_MapOfInteger UsedNums;
+
+ int NbEdges = Edges.Length();
+ int i = 1;
+ for(; i<=NbEdges; i++) {
+ int k = 0;
+ list< SMESH_subMesh* >::iterator itLSM = LSM.begin();
+ for(; itLSM!=LSM.end(); itLSM++) {
+ k++;
+ if(UsedNums.Contains(k)) continue;
+ aTrackEdge = TopoDS::Edge( Edges.Value(k) );
+ SMESH_subMesh* locTrack = *itLSM;
+ SMESHDS_SubMesh* locMeshDS = locTrack->GetSubMeshDS();
+ TopExp::Vertices( aTrackEdge, aV1, aV2 );
+ aItN = locTrack->GetFather()->GetSubMesh(aV1)->GetSubMeshDS()->GetNodes();
+ const SMDS_MeshNode* aN1 = aItN->next();
+ aItN = locTrack->GetFather()->GetSubMesh(aV2)->GetSubMeshDS()->GetNodes();
+ const SMDS_MeshNode* aN2 = aItN->next();
+ // starting node must be aN1 or aN2
+ if ( !( aN1->GetID() == startNid || aN2->GetID() == startNid ) ) continue;
+ // 2. Collect parameters on the track edge
+ aPrms.clear();
+ aItN = locMeshDS->GetNodes();
+ while ( aItN->more() ) {
+ const SMDS_MeshNode* pNode = aItN->next();
+ const SMDS_EdgePosition* pEPos =
+ static_cast<const SMDS_EdgePosition*>( pNode->GetPosition() );
+ double aT = pEPos->GetUParameter();
+ aPrms.push_back( aT );
}
- nbSimple -= loopLen;
- iSimple -= loopLen;
+ list<SMESH_MeshEditor_PathPoint> LPP;
+ //Extrusion_Error err =
+ MakeEdgePathPoints(aPrms, aTrackEdge,(aN1->GetID()==startNid), LPP);
+ LLPPs.push_back(LPP);
+ UsedNums.Add(k);
+ // update startN for search following egde
+ if( aN1->GetID() == startNid ) startNid = aN2->GetID();
+ else startNid = aN1->GetID();
+ break;
}
- } // for (iSimple = 0; iSimple < nbSimple; iSimple++)
- } // while (foundLoop)
-
- if (iSimple > 2) {
- nbNew++;
- quantities.push_back(iSimple);
- for (int i = 0; i < iSimple; i++)
- poly_nodes.push_back(simpleNodes[i]);
+ }
+ list< list<SMESH_MeshEditor_PathPoint> >::iterator itLLPP = LLPPs.begin();
+ list<SMESH_MeshEditor_PathPoint> firstList = *itLLPP;
+ list<SMESH_MeshEditor_PathPoint>::iterator itPP = firstList.begin();
+ for(; itPP!=firstList.end(); itPP++) {
+ fullList.push_back( *itPP );
+ }
+ SMESH_MeshEditor_PathPoint PP1 = fullList.back();
+ fullList.pop_back();
+ itLLPP++;
+ for(; itLLPP!=LLPPs.end(); itLLPP++) {
+ list<SMESH_MeshEditor_PathPoint> currList = *itLLPP;
+ itPP = currList.begin();
+ SMESH_MeshEditor_PathPoint PP2 = currList.front();
+ gp_Dir D1 = PP1.Tangent();
+ gp_Dir D2 = PP2.Tangent();
+ gp_Dir Dnew( gp_Vec( (D1.X()+D2.X())/2, (D1.Y()+D2.Y())/2,
+ (D1.Z()+D2.Z())/2 ) );
+ PP1.SetTangent(Dnew);
+ fullList.push_back(PP1);
+ itPP++;
+ for(; itPP!=firstList.end(); itPP++) {
+ fullList.push_back( *itPP );
+ }
+ PP1 = fullList.back();
+ fullList.pop_back();
+ }
+ // if wire not closed
+ fullList.push_back(PP1);
+ // else ???
+ }
+ else {
+ return EXTR_BAD_PATH_SHAPE;
}
- return nbNew;
+ return MakeExtrElements(theElements, fullList, theHasAngles, theAngles, theLinearVariation,
+ theHasRefPoint, theRefPoint, theMakeGroups);
}
+
//=======================================================================
-//function : MergeNodes
-//purpose : In each group, the cdr of nodes are substituted by the first one
-// in all elements.
+//function : ExtrusionAlongTrack
+//purpose :
//=======================================================================
-
-void SMESH_MeshEditor::MergeNodes (TListOfListOfNodes & theGroupsOfNodes)
+SMESH_MeshEditor::Extrusion_Error
+SMESH_MeshEditor::ExtrusionAlongTrack (TIDSortedElemSet & theElements,
+ SMESH_Mesh* theTrack,
+ const SMDS_MeshNode* theN1,
+ const bool theHasAngles,
+ list<double>& theAngles,
+ const bool theLinearVariation,
+ const bool theHasRefPoint,
+ const gp_Pnt& theRefPoint,
+ const bool theMakeGroups)
{
myLastCreatedElems.Clear();
myLastCreatedNodes.Clear();
- SMESHDS_Mesh* aMesh = GetMeshDS();
+ int aNbE;
+ std::list<double> aPrms;
+ TIDSortedElemSet::iterator itElem;
- TNodeNodeMap nodeNodeMap; // node to replace - new node
- set<const SMDS_MeshElement*> elems; // all elements with changed nodes
- list< int > rmElemIds, rmNodeIds;
+ gp_XYZ aGC;
+ TopoDS_Edge aTrackEdge;
+ TopoDS_Vertex aV1, aV2;
- // Fill nodeNodeMap and elems
+ SMDS_ElemIteratorPtr aItE;
+ SMDS_NodeIteratorPtr aItN;
+ SMDSAbs_ElementType aTypeE;
- TListOfListOfNodes::iterator grIt = theGroupsOfNodes.begin();
- for ( ; grIt != theGroupsOfNodes.end(); grIt++ ) {
- list<const SMDS_MeshNode*>& nodes = *grIt;
- list<const SMDS_MeshNode*>::iterator nIt = nodes.begin();
- const SMDS_MeshNode* nToKeep = *nIt;
- for ( ++nIt; nIt != nodes.end(); nIt++ ) {
- const SMDS_MeshNode* nToRemove = *nIt;
- nodeNodeMap.insert( TNodeNodeMap::value_type( nToRemove, nToKeep ));
- if ( nToRemove != nToKeep ) {
- rmNodeIds.push_back( nToRemove->GetID() );
- AddToSameGroups( nToKeep, nToRemove, aMesh );
- }
+ TNodeOfNodeListMap mapNewNodes;
- SMDS_ElemIteratorPtr invElemIt = nToRemove->GetInverseElementIterator();
- while ( invElemIt->more() ) {
- const SMDS_MeshElement* elem = invElemIt->next();
- elems.insert(elem);
- }
- }
+ // 1. Check data
+ aNbE = theElements.size();
+ // nothing to do
+ if ( !aNbE )
+ return EXTR_NO_ELEMENTS;
+
+ // 1.1 Track Pattern
+ ASSERT( theTrack );
+
+ SMESHDS_Mesh* pMeshDS = theTrack->GetMeshDS();
+
+ aItE = pMeshDS->elementsIterator();
+ while ( aItE->more() ) {
+ const SMDS_MeshElement* pE = aItE->next();
+ aTypeE = pE->GetType();
+ // Pattern must contain links only
+ if ( aTypeE != SMDSAbs_Edge )
+ return EXTR_PATH_NOT_EDGE;
}
- // Change element nodes or remove an element
- set<const SMDS_MeshElement*>::iterator eIt = elems.begin();
- for ( ; eIt != elems.end(); eIt++ ) {
- const SMDS_MeshElement* elem = *eIt;
- int nbNodes = elem->NbNodes();
- int aShapeId = FindShape( elem );
+ list<SMESH_MeshEditor_PathPoint> fullList;
+
+ const TopoDS_Shape& aS = theTrack->GetShapeToMesh();
+
+ if( aS == SMESH_Mesh::PseudoShape() ) {
+ //Mesh without shape
+ const SMDS_MeshNode* currentNode = NULL;
+ const SMDS_MeshNode* prevNode = theN1;
+ std::vector<const SMDS_MeshNode*> aNodesList;
+ aNodesList.push_back(theN1);
+ int nbEdges = 0, conn=0;
+ const SMDS_MeshElement* prevElem = NULL;
+ const SMDS_MeshElement* currentElem = NULL;
+ int totalNbEdges = theTrack->NbEdges();
+ SMDS_ElemIteratorPtr nIt;
+ bool isClosed = false;
+
+ //check start node
+ if( !theTrack->GetMeshDS()->Contains(theN1) ) {
+ return EXTR_BAD_STARTING_NODE;
+ }
+
+ conn = nbEdgeConnectivity(theN1);
+ if(conn > 2)
+ return EXTR_PATH_NOT_EDGE;
- set<const SMDS_MeshNode*> nodeSet;
- vector< const SMDS_MeshNode*> curNodes( nbNodes ), uniqueNodes( nbNodes );
- int iUnique = 0, iCur = 0, nbRepl = 0;
- vector<int> iRepl( nbNodes );
+ aItE = theN1->GetInverseElementIterator();
+ prevElem = aItE->next();
+ currentElem = prevElem;
+ //Get all nodes
+ if(totalNbEdges == 1 ) {
+ nIt = currentElem->nodesIterator();
+ currentNode = static_cast<const SMDS_MeshNode*>(nIt->next());
+ if(currentNode == prevNode)
+ currentNode = static_cast<const SMDS_MeshNode*>(nIt->next());
+ aNodesList.push_back(currentNode);
+ } else {
+ nIt = currentElem->nodesIterator();
+ while( nIt->more() ) {
+ currentNode = static_cast<const SMDS_MeshNode*>(nIt->next());
+ if(currentNode == prevNode)
+ currentNode = static_cast<const SMDS_MeshNode*>(nIt->next());
+ aNodesList.push_back(currentNode);
+
+ //case of the closed mesh
+ if(currentNode == theN1) {
+ nbEdges++;
+ isClosed = true;
+ break;
+ }
- // get new seq of nodes
- SMDS_ElemIteratorPtr itN = elem->nodesIterator();
- while ( itN->more() ) {
- const SMDS_MeshNode* n =
- static_cast<const SMDS_MeshNode*>( itN->next() );
+ conn = nbEdgeConnectivity(currentNode);
+ if(conn > 2) {
+ return EXTR_PATH_NOT_EDGE;
+ }else if( conn == 1 && nbEdges > 0 ) {
+ //End of the path
+ nbEdges++;
+ break;
+ }else {
+ prevNode = currentNode;
+ aItE = currentNode->GetInverseElementIterator();
+ currentElem = aItE->next();
+ if( currentElem == prevElem)
+ currentElem = aItE->next();
+ nIt = currentElem->nodesIterator();
+ prevElem = currentElem;
+ nbEdges++;
+ }
+ }
+ }
+
+ if(nbEdges != totalNbEdges)
+ return EXTR_PATH_NOT_EDGE;
- TNodeNodeMap::iterator nnIt = nodeNodeMap.find( n );
- if ( nnIt != nodeNodeMap.end() ) { // n sticks
- n = (*nnIt).second;
- iRepl[ nbRepl++ ] = iCur;
+ TopTools_SequenceOfShape Edges;
+ double x1,x2,y1,y2,z1,z2;
+ list< list<SMESH_MeshEditor_PathPoint> > LLPPs;
+ int startNid = theN1->GetID();
+ for(int i = 1; i < aNodesList.size(); i++) {
+ x1 = aNodesList[i-1]->X();x2 = aNodesList[i]->X();
+ y1 = aNodesList[i-1]->Y();y2 = aNodesList[i]->Y();
+ z1 = aNodesList[i-1]->Z();z2 = aNodesList[i]->Z();
+ TopoDS_Edge e = BRepBuilderAPI_MakeEdge(gp_Pnt(x1,y1,z1),gp_Pnt(x2,y2,z2));
+ list<SMESH_MeshEditor_PathPoint> LPP;
+ aPrms.clear();
+ MakeEdgePathPoints(aPrms, e, (aNodesList[i-1]->GetID()==startNid), LPP);
+ LLPPs.push_back(LPP);
+ if( aNodesList[i-1]->GetID() == startNid ) startNid = aNodesList[i]->GetID();
+ else startNid = aNodesList[i-1]->GetID();
+
+ }
+
+ list< list<SMESH_MeshEditor_PathPoint> >::iterator itLLPP = LLPPs.begin();
+ list<SMESH_MeshEditor_PathPoint> firstList = *itLLPP;
+ list<SMESH_MeshEditor_PathPoint>::iterator itPP = firstList.begin();
+ for(; itPP!=firstList.end(); itPP++) {
+ fullList.push_back( *itPP );
+ }
+
+ SMESH_MeshEditor_PathPoint PP1 = fullList.back();
+ SMESH_MeshEditor_PathPoint PP2;
+ fullList.pop_back();
+ itLLPP++;
+ for(; itLLPP!=LLPPs.end(); itLLPP++) {
+ list<SMESH_MeshEditor_PathPoint> currList = *itLLPP;
+ itPP = currList.begin();
+ PP2 = currList.front();
+ gp_Dir D1 = PP1.Tangent();
+ gp_Dir D2 = PP2.Tangent();
+ gp_Dir Dnew( gp_Vec( (D1.X()+D2.X())/2, (D1.Y()+D2.Y())/2,
+ (D1.Z()+D2.Z())/2 ) );
+ PP1.SetTangent(Dnew);
+ fullList.push_back(PP1);
+ itPP++;
+ for(; itPP!=currList.end(); itPP++) {
+ fullList.push_back( *itPP );
+ }
+ PP1 = fullList.back();
+ fullList.pop_back();
+ }
+ fullList.push_back(PP1);
+
+ } // Sub-shape for the Pattern must be an Edge or Wire
+ else if( aS.ShapeType() == TopAbs_EDGE ) {
+ aTrackEdge = TopoDS::Edge( aS );
+ // the Edge must not be degenerated
+ if ( BRep_Tool::Degenerated( aTrackEdge ) )
+ return EXTR_BAD_PATH_SHAPE;
+ TopExp::Vertices( aTrackEdge, aV1, aV2 );
+ aItN = theTrack->GetSubMesh( aV1 )->GetSubMeshDS()->GetNodes();
+ const SMDS_MeshNode* aN1 = aItN->next();
+ aItN = theTrack->GetSubMesh( aV2 )->GetSubMeshDS()->GetNodes();
+ const SMDS_MeshNode* aN2 = aItN->next();
+ // starting node must be aN1 or aN2
+ if ( !( aN1 == theN1 || aN2 == theN1 ) )
+ return EXTR_BAD_STARTING_NODE;
+ aItN = pMeshDS->nodesIterator();
+ while ( aItN->more() ) {
+ const SMDS_MeshNode* pNode = aItN->next();
+ if( pNode==aN1 || pNode==aN2 ) continue;
+ const SMDS_EdgePosition* pEPos =
+ static_cast<const SMDS_EdgePosition*>( pNode->GetPosition() );
+ double aT = pEPos->GetUParameter();
+ aPrms.push_back( aT );
+ }
+ //Extrusion_Error err =
+ MakeEdgePathPoints(aPrms, aTrackEdge, (aN1==theN1), fullList);
+ }
+ else if( aS.ShapeType() == TopAbs_WIRE ) {
+ list< SMESH_subMesh* > LSM;
+ TopTools_SequenceOfShape Edges;
+ TopExp_Explorer eExp(aS, TopAbs_EDGE);
+ for(; eExp.More(); eExp.Next()) {
+ TopoDS_Edge E = TopoDS::Edge( eExp.Current() );
+ if( BRep_Tool::Degenerated(E) ) continue;
+ SMESH_subMesh* SM = theTrack->GetSubMesh(E);
+ if(SM) {
+ LSM.push_back(SM);
+ Edges.Append(E);
+ }
+ }
+ list< list<SMESH_MeshEditor_PathPoint> > LLPPs;
+ int startNid = theN1->GetID();
+ TColStd_MapOfInteger UsedNums;
+ int NbEdges = Edges.Length();
+ int i = 1;
+ for(; i<=NbEdges; i++) {
+ int k = 0;
+ list< SMESH_subMesh* >::iterator itLSM = LSM.begin();
+ for(; itLSM!=LSM.end(); itLSM++) {
+ k++;
+ if(UsedNums.Contains(k)) continue;
+ aTrackEdge = TopoDS::Edge( Edges.Value(k) );
+ SMESH_subMesh* locTrack = *itLSM;
+ SMESHDS_SubMesh* locMeshDS = locTrack->GetSubMeshDS();
+ TopExp::Vertices( aTrackEdge, aV1, aV2 );
+ aItN = locTrack->GetFather()->GetSubMesh(aV1)->GetSubMeshDS()->GetNodes();
+ const SMDS_MeshNode* aN1 = aItN->next();
+ aItN = locTrack->GetFather()->GetSubMesh(aV2)->GetSubMeshDS()->GetNodes();
+ const SMDS_MeshNode* aN2 = aItN->next();
+ // starting node must be aN1 or aN2
+ if ( !( aN1->GetID() == startNid || aN2->GetID() == startNid ) ) continue;
+ // 2. Collect parameters on the track edge
+ aPrms.clear();
+ aItN = locMeshDS->GetNodes();
+ while ( aItN->more() ) {
+ const SMDS_MeshNode* pNode = aItN->next();
+ const SMDS_EdgePosition* pEPos =
+ static_cast<const SMDS_EdgePosition*>( pNode->GetPosition() );
+ double aT = pEPos->GetUParameter();
+ aPrms.push_back( aT );
+ }
+ list<SMESH_MeshEditor_PathPoint> LPP;
+ //Extrusion_Error err =
+ MakeEdgePathPoints(aPrms, aTrackEdge,(aN1->GetID()==startNid), LPP);
+ LLPPs.push_back(LPP);
+ UsedNums.Add(k);
+ // update startN for search following egde
+ if( aN1->GetID() == startNid ) startNid = aN2->GetID();
+ else startNid = aN1->GetID();
+ break;
}
- curNodes[ iCur ] = n;
- bool isUnique = nodeSet.insert( n ).second;
- if ( isUnique )
- uniqueNodes[ iUnique++ ] = n;
- iCur++;
}
+ list< list<SMESH_MeshEditor_PathPoint> >::iterator itLLPP = LLPPs.begin();
+ list<SMESH_MeshEditor_PathPoint> firstList = *itLLPP;
+ list<SMESH_MeshEditor_PathPoint>::iterator itPP = firstList.begin();
+ for(; itPP!=firstList.end(); itPP++) {
+ fullList.push_back( *itPP );
+ }
+ SMESH_MeshEditor_PathPoint PP1 = fullList.back();
+ fullList.pop_back();
+ itLLPP++;
+ for(; itLLPP!=LLPPs.end(); itLLPP++) {
+ list<SMESH_MeshEditor_PathPoint> currList = *itLLPP;
+ itPP = currList.begin();
+ SMESH_MeshEditor_PathPoint PP2 = currList.front();
+ gp_Dir D1 = PP1.Tangent();
+ gp_Dir D2 = PP2.Tangent();
+ gp_Dir Dnew( gp_Vec( (D1.X()+D2.X())/2, (D1.Y()+D2.Y())/2,
+ (D1.Z()+D2.Z())/2 ) );
+ PP1.SetTangent(Dnew);
+ fullList.push_back(PP1);
+ itPP++;
+ for(; itPP!=currList.end(); itPP++) {
+ fullList.push_back( *itPP );
+ }
+ PP1 = fullList.back();
+ fullList.pop_back();
+ }
+ // if wire not closed
+ fullList.push_back(PP1);
+ // else ???
+ }
+ else {
+ return EXTR_BAD_PATH_SHAPE;
+ }
- // Analyse element topology after replacement
+ return MakeExtrElements(theElements, fullList, theHasAngles, theAngles, theLinearVariation,
+ theHasRefPoint, theRefPoint, theMakeGroups);
+}
- bool isOk = true;
- int nbUniqueNodes = nodeSet.size();
- if ( nbNodes != nbUniqueNodes ) { // some nodes stick
- // Polygons and Polyhedral volumes
- if (elem->IsPoly()) {
- if (elem->GetType() == SMDSAbs_Face) {
- // Polygon
- vector<const SMDS_MeshNode *> face_nodes (nbNodes);
- int inode = 0;
- for (; inode < nbNodes; inode++) {
- face_nodes[inode] = curNodes[inode];
- }
+//=======================================================================
+//function : MakeEdgePathPoints
+//purpose : auxilary for ExtrusionAlongTrack
+//=======================================================================
+SMESH_MeshEditor::Extrusion_Error
+SMESH_MeshEditor::MakeEdgePathPoints(std::list<double>& aPrms,
+ const TopoDS_Edge& aTrackEdge,
+ bool FirstIsStart,
+ list<SMESH_MeshEditor_PathPoint>& LPP)
+{
+ Standard_Real aTx1, aTx2, aL2, aTolVec, aTolVec2;
+ aTolVec=1.e-7;
+ aTolVec2=aTolVec*aTolVec;
+ double aT1, aT2;
+ TopoDS_Vertex aV1, aV2;
+ TopExp::Vertices( aTrackEdge, aV1, aV2 );
+ aT1=BRep_Tool::Parameter( aV1, aTrackEdge );
+ aT2=BRep_Tool::Parameter( aV2, aTrackEdge );
+ // 2. Collect parameters on the track edge
+ aPrms.push_front( aT1 );
+ aPrms.push_back( aT2 );
+ // sort parameters
+ aPrms.sort();
+ if( FirstIsStart ) {
+ if ( aT1 > aT2 ) {
+ aPrms.reverse();
+ }
+ }
+ else {
+ if ( aT2 > aT1 ) {
+ aPrms.reverse();
+ }
+ }
+ // 3. Path Points
+ SMESH_MeshEditor_PathPoint aPP;
+ Handle(Geom_Curve) aC3D = BRep_Tool::Curve( aTrackEdge, aTx1, aTx2 );
+ std::list<double>::iterator aItD = aPrms.begin();
+ for(; aItD != aPrms.end(); ++aItD) {
+ double aT = *aItD;
+ gp_Pnt aP3D;
+ gp_Vec aVec;
+ aC3D->D1( aT, aP3D, aVec );
+ aL2 = aVec.SquareMagnitude();
+ if ( aL2 < aTolVec2 )
+ return EXTR_CANT_GET_TANGENT;
+ gp_Dir aTgt( aVec );
+ aPP.SetPnt( aP3D );
+ aPP.SetTangent( aTgt );
+ aPP.SetParameter( aT );
+ LPP.push_back(aPP);
+ }
+ return EXTR_OK;
+}
- vector<const SMDS_MeshNode *> polygons_nodes;
- vector<int> quantities;
- int nbNew = SimplifyFace(face_nodes, polygons_nodes, quantities);
- if (nbNew > 0) {
- inode = 0;
- for (int iface = 0; iface < nbNew - 1; iface++) {
- int nbNodes = quantities[iface];
- vector<const SMDS_MeshNode *> poly_nodes (nbNodes);
- for (int ii = 0; ii < nbNodes; ii++, inode++) {
- poly_nodes[ii] = polygons_nodes[inode];
- }
- SMDS_MeshElement* newElem = aMesh->AddPolygonalFace(poly_nodes);
- myLastCreatedElems.Append(newElem);
- if (aShapeId)
- aMesh->SetMeshElementOnShape(newElem, aShapeId);
- }
- aMesh->ChangeElementNodes(elem, &polygons_nodes[inode], quantities[nbNew - 1]);
- }
- else {
- rmElemIds.push_back(elem->GetID());
- }
+//=======================================================================
+//function : MakeExtrElements
+//purpose : auxilary for ExtrusionAlongTrack
+//=======================================================================
+SMESH_MeshEditor::Extrusion_Error
+SMESH_MeshEditor::MakeExtrElements(TIDSortedElemSet& theElements,
+ list<SMESH_MeshEditor_PathPoint>& fullList,
+ const bool theHasAngles,
+ list<double>& theAngles,
+ const bool theLinearVariation,
+ const bool theHasRefPoint,
+ const gp_Pnt& theRefPoint,
+ const bool theMakeGroups)
+{
+ MESSAGE("MakeExtrElements");
+ //cout<<"MakeExtrElements fullList.size() = "<<fullList.size()<<endl;
+ int aNbTP = fullList.size();
+ vector<SMESH_MeshEditor_PathPoint> aPPs(aNbTP);
+ // Angles
+ if( theHasAngles && theAngles.size()>0 && theLinearVariation ) {
+ LinearAngleVariation(aNbTP-1, theAngles);
+ }
+ vector<double> aAngles( aNbTP );
+ int j = 0;
+ for(; j<aNbTP; ++j) {
+ aAngles[j] = 0.;
+ }
+ if ( theHasAngles ) {
+ double anAngle;;
+ std::list<double>::iterator aItD = theAngles.begin();
+ for ( j=1; (aItD != theAngles.end()) && (j<aNbTP); ++aItD, ++j ) {
+ anAngle = *aItD;
+ aAngles[j] = anAngle;
+ }
+ }
+ // fill vector of path points with angles
+ //aPPs.resize(fullList.size());
+ j = -1;
+ list<SMESH_MeshEditor_PathPoint>::iterator itPP = fullList.begin();
+ for(; itPP!=fullList.end(); itPP++) {
+ j++;
+ SMESH_MeshEditor_PathPoint PP = *itPP;
+ PP.SetAngle(aAngles[j]);
+ aPPs[j] = PP;
+ }
- }
- else if (elem->GetType() == SMDSAbs_Volume) {
- // Polyhedral volume
- if (nbUniqueNodes < 4) {
- rmElemIds.push_back(elem->GetID());
- }
- else {
- // each face has to be analized in order to check volume validity
- const SMDS_PolyhedralVolumeOfNodes* aPolyedre =
- static_cast<const SMDS_PolyhedralVolumeOfNodes*>( elem );
- if (aPolyedre) {
- int nbFaces = aPolyedre->NbFaces();
+ TNodeOfNodeListMap mapNewNodes;
+ TElemOfVecOfNnlmiMap mapElemNewNodes;
+ TElemOfElemListMap newElemsMap;
+ TIDSortedElemSet::iterator itElem;
+ double aX, aY, aZ;
+ int aNb;
+ SMDSAbs_ElementType aTypeE;
+ // source elements for each generated one
+ SMESH_SequenceOfElemPtr srcElems, srcNodes;
- vector<const SMDS_MeshNode *> poly_nodes;
- vector<int> quantities;
+ // 3. Center of rotation aV0
+ gp_Pnt aV0 = theRefPoint;
+ gp_XYZ aGC;
+ if ( !theHasRefPoint ) {
+ aNb = 0;
+ aGC.SetCoord( 0.,0.,0. );
- for (int iface = 1; iface <= nbFaces; iface++) {
- int nbFaceNodes = aPolyedre->NbFaceNodes(iface);
- vector<const SMDS_MeshNode *> faceNodes (nbFaceNodes);
+ itElem = theElements.begin();
+ for ( ; itElem != theElements.end(); itElem++ ) {
+ const SMDS_MeshElement* elem = *itElem;
- for (int inode = 1; inode <= nbFaceNodes; inode++) {
- const SMDS_MeshNode * faceNode = aPolyedre->GetFaceNode(iface, inode);
- TNodeNodeMap::iterator nnIt = nodeNodeMap.find(faceNode);
- if (nnIt != nodeNodeMap.end()) { // faceNode sticks
- faceNode = (*nnIt).second;
- }
- faceNodes[inode - 1] = faceNode;
- }
+ SMDS_ElemIteratorPtr itN = elem->nodesIterator();
+ while ( itN->more() ) {
+ const SMDS_MeshNode* node = static_cast<const SMDS_MeshNode*>( itN->next() );
+ aX = node->X();
+ aY = node->Y();
+ aZ = node->Z();
+
+ if ( mapNewNodes.find( node ) == mapNewNodes.end() ) {
+ list<const SMDS_MeshNode*> aLNx;
+ mapNewNodes[node] = aLNx;
+ //
+ gp_XYZ aXYZ( aX, aY, aZ );
+ aGC += aXYZ;
+ ++aNb;
+ }
+ }
+ }
+ aGC /= aNb;
+ aV0.SetXYZ( aGC );
+ } // if (!theHasRefPoint) {
+ mapNewNodes.clear();
- SimplifyFace(faceNodes, poly_nodes, quantities);
- }
+ // 4. Processing the elements
+ SMESHDS_Mesh* aMesh = GetMeshDS();
- if (quantities.size() > 3) {
- // to be done: remove coincident faces
- }
+ for ( itElem = theElements.begin(); itElem != theElements.end(); itElem++ ) {
+ // check element type
+ const SMDS_MeshElement* elem = *itElem;
+ aTypeE = elem->GetType();
+ if ( !elem || ( aTypeE != SMDSAbs_Face && aTypeE != SMDSAbs_Edge ) )
+ continue;
- if (quantities.size() > 3)
- aMesh->ChangePolyhedronNodes(elem, poly_nodes, quantities);
- else
- rmElemIds.push_back(elem->GetID());
+ vector<TNodeOfNodeListMapItr> & newNodesItVec = mapElemNewNodes[ elem ];
+ newNodesItVec.reserve( elem->NbNodes() );
- }
- else {
- rmElemIds.push_back(elem->GetID());
- }
+ // loop on elem nodes
+ int nodeIndex = -1;
+ SMDS_ElemIteratorPtr itN = elem->nodesIterator();
+ while ( itN->more() )
+ {
+ ++nodeIndex;
+ // check if a node has been already processed
+ const SMDS_MeshNode* node =
+ static_cast<const SMDS_MeshNode*>( itN->next() );
+ TNodeOfNodeListMap::iterator nIt = mapNewNodes.find( node );
+ if ( nIt == mapNewNodes.end() ) {
+ nIt = mapNewNodes.insert( make_pair( node, list<const SMDS_MeshNode*>() )).first;
+ list<const SMDS_MeshNode*>& listNewNodes = nIt->second;
+
+ // make new nodes
+ aX = node->X(); aY = node->Y(); aZ = node->Z();
+
+ Standard_Real aAngle1x, aAngleT1T0, aTolAng;
+ gp_Pnt aP0x, aP1x, aPN0, aPN1, aV0x, aV1x;
+ gp_Ax1 anAx1, anAxT1T0;
+ gp_Dir aDT1x, aDT0x, aDT1T0;
+
+ aTolAng=1.e-4;
+
+ aV0x = aV0;
+ aPN0.SetCoord(aX, aY, aZ);
+
+ const SMESH_MeshEditor_PathPoint& aPP0 = aPPs[0];
+ aP0x = aPP0.Pnt();
+ aDT0x= aPP0.Tangent();
+ //cout<<"j = 0 PP: Pnt("<<aP0x.X()<<","<<aP0x.Y()<<","<<aP0x.Z()<<")"<<endl;
+
+ for ( j = 1; j < aNbTP; ++j ) {
+ const SMESH_MeshEditor_PathPoint& aPP1 = aPPs[j];
+ aP1x = aPP1.Pnt();
+ aDT1x = aPP1.Tangent();
+ aAngle1x = aPP1.Angle();
+
+ gp_Trsf aTrsf, aTrsfRot, aTrsfRotT1T0;
+ // Translation
+ gp_Vec aV01x( aP0x, aP1x );
+ aTrsf.SetTranslation( aV01x );
+
+ // traslated point
+ aV1x = aV0x.Transformed( aTrsf );
+ aPN1 = aPN0.Transformed( aTrsf );
+
+ // rotation 1 [ T1,T0 ]
+ aAngleT1T0=-aDT1x.Angle( aDT0x );
+ if (fabs(aAngleT1T0) > aTolAng) {
+ aDT1T0=aDT1x^aDT0x;
+ anAxT1T0.SetLocation( aV1x );
+ anAxT1T0.SetDirection( aDT1T0 );
+ aTrsfRotT1T0.SetRotation( anAxT1T0, aAngleT1T0 );
+
+ aPN1 = aPN1.Transformed( aTrsfRotT1T0 );
}
- }
- else {
- }
- continue;
- }
+ // rotation 2
+ if ( theHasAngles ) {
+ anAx1.SetLocation( aV1x );
+ anAx1.SetDirection( aDT1x );
+ aTrsfRot.SetRotation( anAx1, aAngle1x );
- // Regular elements
- switch ( nbNodes ) {
- case 2: ///////////////////////////////////// EDGE
- isOk = false; break;
- case 3: ///////////////////////////////////// TRIANGLE
- isOk = false; break;
- case 4:
- if ( elem->GetType() == SMDSAbs_Volume ) // TETRAHEDRON
- isOk = false;
- else { //////////////////////////////////// QUADRANGLE
- if ( nbUniqueNodes < 3 )
- isOk = false;
- else if ( nbRepl == 2 && iRepl[ 1 ] - iRepl[ 0 ] == 2 )
- isOk = false; // opposite nodes stick
- }
- break;
- case 6: ///////////////////////////////////// PENTAHEDRON
- if ( nbUniqueNodes == 4 ) {
- // ---------------------------------> tetrahedron
- if (nbRepl == 3 &&
- iRepl[ 0 ] > 2 && iRepl[ 1 ] > 2 && iRepl[ 2 ] > 2 ) {
- // all top nodes stick: reverse a bottom
- uniqueNodes[ 0 ] = curNodes [ 1 ];
- uniqueNodes[ 1 ] = curNodes [ 0 ];
- }
- else if (nbRepl == 3 &&
- iRepl[ 0 ] < 3 && iRepl[ 1 ] < 3 && iRepl[ 2 ] < 3 ) {
- // all bottom nodes stick: set a top before
- uniqueNodes[ 3 ] = uniqueNodes [ 0 ];
- uniqueNodes[ 0 ] = curNodes [ 3 ];
- uniqueNodes[ 1 ] = curNodes [ 4 ];
- uniqueNodes[ 2 ] = curNodes [ 5 ];
- }
- else if (nbRepl == 4 &&
- iRepl[ 2 ] - iRepl [ 0 ] == 3 && iRepl[ 3 ] - iRepl [ 1 ] == 3 ) {
- // a lateral face turns into a line: reverse a bottom
- uniqueNodes[ 0 ] = curNodes [ 1 ];
- uniqueNodes[ 1 ] = curNodes [ 0 ];
+ aPN1 = aPN1.Transformed( aTrsfRot );
}
- else
- isOk = false;
- }
- else if ( nbUniqueNodes == 5 ) {
- // PENTAHEDRON --------------------> 2 tetrahedrons
- if ( nbRepl == 2 && iRepl[ 1 ] - iRepl [ 0 ] == 3 ) {
- // a bottom node sticks with a linked top one
- // 1.
- SMDS_MeshElement* newElem =
- aMesh->AddVolume(curNodes[ 3 ],
- curNodes[ 4 ],
- curNodes[ 5 ],
- curNodes[ iRepl[ 0 ] == 2 ? 1 : 2 ]);
- myLastCreatedElems.Append(newElem);
- if ( aShapeId )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
- // 2. : reverse a bottom
- uniqueNodes[ 0 ] = curNodes [ 1 ];
- uniqueNodes[ 1 ] = curNodes [ 0 ];
- nbUniqueNodes = 4;
+
+ // make new node
+ //MESSAGE("elem->IsQuadratic " << elem->IsQuadratic() << " " << elem->IsMediumNode(node));
+ if( elem->IsQuadratic() && !elem->IsMediumNode(node) ) {
+ // create additional node
+ double x = ( aPN1.X() + aPN0.X() )/2.;
+ double y = ( aPN1.Y() + aPN0.Y() )/2.;
+ double z = ( aPN1.Z() + aPN0.Z() )/2.;
+ const SMDS_MeshNode* newNode = aMesh->AddNode(x,y,z);
+ myLastCreatedNodes.Append(newNode);
+ srcNodes.Append( node );
+ listNewNodes.push_back( newNode );
}
- else
- isOk = false;
+ aX = aPN1.X();
+ aY = aPN1.Y();
+ aZ = aPN1.Z();
+ const SMDS_MeshNode* newNode = aMesh->AddNode( aX, aY, aZ );
+ myLastCreatedNodes.Append(newNode);
+ srcNodes.Append( node );
+ listNewNodes.push_back( newNode );
+
+ aPN0 = aPN1;
+ aP0x = aP1x;
+ aV0x = aV1x;
+ aDT0x = aDT1x;
}
- else
- isOk = false;
- break;
- case 8: {
- if(elem->IsQuadratic()) { // Quadratic quadrangle
- // 1 5 2
- // +---+---+
- // | |
- // | |
- // 4+ +6
- // | |
- // | |
- // +---+---+
- // 0 7 3
- isOk = false;
- if(nbRepl==3) {
- nbUniqueNodes = 6;
- if( iRepl[0]==0 && iRepl[1]==1 && iRepl[2]==4 ) {
- uniqueNodes[0] = curNodes[0];
- uniqueNodes[1] = curNodes[2];
- uniqueNodes[2] = curNodes[3];
- uniqueNodes[3] = curNodes[5];
- uniqueNodes[4] = curNodes[6];
- uniqueNodes[5] = curNodes[7];
- isOk = true;
- }
- if( iRepl[0]==0 && iRepl[1]==3 && iRepl[2]==7 ) {
- uniqueNodes[0] = curNodes[0];
- uniqueNodes[1] = curNodes[1];
- uniqueNodes[2] = curNodes[2];
- uniqueNodes[3] = curNodes[4];
- uniqueNodes[4] = curNodes[5];
- uniqueNodes[5] = curNodes[6];
- isOk = true;
- }
- if( iRepl[0]==0 && iRepl[1]==4 && iRepl[2]==7 ) {
- uniqueNodes[0] = curNodes[1];
- uniqueNodes[1] = curNodes[2];
- uniqueNodes[2] = curNodes[3];
- uniqueNodes[3] = curNodes[5];
- uniqueNodes[4] = curNodes[6];
- uniqueNodes[5] = curNodes[0];
- isOk = true;
- }
- if( iRepl[0]==1 && iRepl[1]==2 && iRepl[2]==5 ) {
- uniqueNodes[0] = curNodes[0];
- uniqueNodes[1] = curNodes[1];
- uniqueNodes[2] = curNodes[3];
- uniqueNodes[3] = curNodes[4];
- uniqueNodes[4] = curNodes[6];
- uniqueNodes[5] = curNodes[7];
- isOk = true;
- }
- if( iRepl[0]==1 && iRepl[1]==4 && iRepl[2]==5 ) {
- uniqueNodes[0] = curNodes[0];
- uniqueNodes[1] = curNodes[2];
- uniqueNodes[2] = curNodes[3];
- uniqueNodes[3] = curNodes[1];
- uniqueNodes[4] = curNodes[6];
- uniqueNodes[5] = curNodes[7];
- isOk = true;
- }
- if( iRepl[0]==2 && iRepl[1]==3 && iRepl[2]==6 ) {
- uniqueNodes[0] = curNodes[0];
- uniqueNodes[1] = curNodes[1];
- uniqueNodes[2] = curNodes[2];
- uniqueNodes[3] = curNodes[4];
- uniqueNodes[4] = curNodes[5];
- uniqueNodes[5] = curNodes[7];
- isOk = true;
- }
- if( iRepl[0]==2 && iRepl[1]==5 && iRepl[2]==6 ) {
- uniqueNodes[0] = curNodes[0];
- uniqueNodes[1] = curNodes[1];
- uniqueNodes[2] = curNodes[3];
- uniqueNodes[3] = curNodes[4];
- uniqueNodes[4] = curNodes[2];
- uniqueNodes[5] = curNodes[7];
- isOk = true;
+ }
+
+ else {
+ // if current elem is quadratic and current node is not medium
+ // we have to check - may be it is needed to insert additional nodes
+ if( elem->IsQuadratic() && !elem->IsMediumNode(node) ) {
+ list< const SMDS_MeshNode* > & listNewNodes = nIt->second;
+ if(listNewNodes.size()==aNbTP-1) {
+ vector<const SMDS_MeshNode*> aNodes(2*(aNbTP-1));
+ gp_XYZ P(node->X(), node->Y(), node->Z());
+ list< const SMDS_MeshNode* >::iterator it = listNewNodes.begin();
+ int i;
+ for(i=0; i<aNbTP-1; i++) {
+ const SMDS_MeshNode* N = *it;
+ double x = ( N->X() + P.X() )/2.;
+ double y = ( N->Y() + P.Y() )/2.;
+ double z = ( N->Z() + P.Z() )/2.;
+ const SMDS_MeshNode* newN = aMesh->AddNode(x,y,z);
+ srcNodes.Append( node );
+ myLastCreatedNodes.Append(newN);
+ aNodes[2*i] = newN;
+ aNodes[2*i+1] = N;
+ P = gp_XYZ(N->X(),N->Y(),N->Z());
}
- if( iRepl[0]==3 && iRepl[1]==6 && iRepl[2]==7 ) {
- uniqueNodes[0] = curNodes[0];
- uniqueNodes[1] = curNodes[1];
- uniqueNodes[2] = curNodes[2];
- uniqueNodes[3] = curNodes[4];
- uniqueNodes[4] = curNodes[5];
- uniqueNodes[5] = curNodes[3];
- isOk = true;
+ listNewNodes.clear();
+ for(i=0; i<2*(aNbTP-1); i++) {
+ listNewNodes.push_back(aNodes[i]);
}
}
- break;
}
- //////////////////////////////////// HEXAHEDRON
- isOk = false;
- SMDS_VolumeTool hexa (elem);
- hexa.SetExternalNormal();
- if ( nbUniqueNodes == 4 && nbRepl == 6 ) {
- //////////////////////// ---> tetrahedron
- for ( int iFace = 0; iFace < 6; iFace++ ) {
- const int *ind = hexa.GetFaceNodesIndices( iFace ); // indices of face nodes
- if (curNodes[ind[ 0 ]] == curNodes[ind[ 1 ]] &&
- curNodes[ind[ 0 ]] == curNodes[ind[ 2 ]] &&
- curNodes[ind[ 0 ]] == curNodes[ind[ 3 ]] ) {
- // one face turns into a point ...
- int iOppFace = hexa.GetOppFaceIndex( iFace );
- ind = hexa.GetFaceNodesIndices( iOppFace );
- int nbStick = 0;
- iUnique = 2; // reverse a tetrahedron bottom
- for ( iCur = 0; iCur < 4 && nbStick < 2; iCur++ ) {
- if ( curNodes[ind[ iCur ]] == curNodes[ind[ iCur + 1 ]] )
- nbStick++;
- else if ( iUnique >= 0 )
- uniqueNodes[ iUnique-- ] = curNodes[ind[ iCur ]];
- }
- if ( nbStick == 1 ) {
- // ... and the opposite one - into a triangle.
- // set a top node
- ind = hexa.GetFaceNodesIndices( iFace );
- uniqueNodes[ 3 ] = curNodes[ind[ 0 ]];
- isOk = true;
- }
- break;
+ }
+
+ newNodesItVec.push_back( nIt );
+ }
+ // make new elements
+ //sweepElement( aMesh, elem, newNodesItVec, newElemsMap[elem],
+ // newNodesItVec[0]->second.size(), myLastCreatedElems );
+ sweepElement( elem, newNodesItVec, newElemsMap[elem], aNbTP-1, srcElems );
+ }
+
+ makeWalls( mapNewNodes, newElemsMap, mapElemNewNodes, theElements, aNbTP-1, srcElems );
+
+ if ( theMakeGroups )
+ generateGroups( srcNodes, srcElems, "extruded");
+
+ return EXTR_OK;
+}
+
+
+//=======================================================================
+//function : LinearAngleVariation
+//purpose : auxilary for ExtrusionAlongTrack
+//=======================================================================
+void SMESH_MeshEditor::LinearAngleVariation(const int nbSteps,
+ list<double>& Angles)
+{
+ int nbAngles = Angles.size();
+ if( nbSteps > nbAngles ) {
+ vector<double> theAngles(nbAngles);
+ list<double>::iterator it = Angles.begin();
+ int i = -1;
+ for(; it!=Angles.end(); it++) {
+ i++;
+ theAngles[i] = (*it);
+ }
+ list<double> res;
+ double rAn2St = double( nbAngles ) / double( nbSteps );
+ double angPrev = 0, angle;
+ for ( int iSt = 0; iSt < nbSteps; ++iSt ) {
+ double angCur = rAn2St * ( iSt+1 );
+ double angCurFloor = floor( angCur );
+ double angPrevFloor = floor( angPrev );
+ if ( angPrevFloor == angCurFloor )
+ angle = rAn2St * theAngles[ int( angCurFloor ) ];
+ else {
+ int iP = int( angPrevFloor );
+ double angPrevCeil = ceil(angPrev);
+ angle = ( angPrevCeil - angPrev ) * theAngles[ iP ];
+
+ int iC = int( angCurFloor );
+ if ( iC < nbAngles )
+ angle += ( angCur - angCurFloor ) * theAngles[ iC ];
+
+ iP = int( angPrevCeil );
+ while ( iC-- > iP )
+ angle += theAngles[ iC ];
+ }
+ res.push_back(angle);
+ angPrev = angCur;
+ }
+ Angles.clear();
+ it = res.begin();
+ for(; it!=res.end(); it++)
+ Angles.push_back( *it );
+ }
+}
+
+
+//================================================================================
+/*!
+ * \brief Move or copy theElements applying theTrsf to their nodes
+ * \param theElems - elements to transform, if theElems is empty then apply to all mesh nodes
+ * \param theTrsf - transformation to apply
+ * \param theCopy - if true, create translated copies of theElems
+ * \param theMakeGroups - if true and theCopy, create translated groups
+ * \param theTargetMesh - mesh to copy translated elements into
+ * \return SMESH_MeshEditor::PGroupIDs - list of ids of created groups
+ */
+//================================================================================
+
+SMESH_MeshEditor::PGroupIDs
+SMESH_MeshEditor::Transform (TIDSortedElemSet & theElems,
+ const gp_Trsf& theTrsf,
+ const bool theCopy,
+ const bool theMakeGroups,
+ SMESH_Mesh* theTargetMesh)
+{
+ myLastCreatedElems.Clear();
+ myLastCreatedNodes.Clear();
+
+ bool needReverse = false;
+ string groupPostfix;
+ switch ( theTrsf.Form() ) {
+ case gp_PntMirror:
+ MESSAGE("gp_PntMirror");
+ needReverse = true;
+ groupPostfix = "mirrored";
+ break;
+ case gp_Ax1Mirror:
+ MESSAGE("gp_Ax1Mirror");
+ groupPostfix = "mirrored";
+ break;
+ case gp_Ax2Mirror:
+ MESSAGE("gp_Ax2Mirror");
+ needReverse = true;
+ groupPostfix = "mirrored";
+ break;
+ case gp_Rotation:
+ MESSAGE("gp_Rotation");
+ groupPostfix = "rotated";
+ break;
+ case gp_Translation:
+ MESSAGE("gp_Translation");
+ groupPostfix = "translated";
+ break;
+ case gp_Scale:
+ MESSAGE("gp_Scale");
+ groupPostfix = "scaled";
+ break;
+ case gp_CompoundTrsf: // different scale by axis
+ MESSAGE("gp_CompoundTrsf");
+ groupPostfix = "scaled";
+ break;
+ default:
+ MESSAGE("default");
+ needReverse = false;
+ groupPostfix = "transformed";
+ }
+
+ SMESH_MeshEditor targetMeshEditor( theTargetMesh );
+ SMESHDS_Mesh* aTgtMesh = theTargetMesh ? theTargetMesh->GetMeshDS() : 0;
+ SMESHDS_Mesh* aMesh = GetMeshDS();
+
+
+ // map old node to new one
+ TNodeNodeMap nodeMap;
+
+ // elements sharing moved nodes; those of them which have all
+ // nodes mirrored but are not in theElems are to be reversed
+ TIDSortedElemSet inverseElemSet;
+
+ // source elements for each generated one
+ SMESH_SequenceOfElemPtr srcElems, srcNodes;
+
+ // issue 021015: EDF 1578 SMESH: Free nodes are removed when translating a mesh
+ TIDSortedElemSet orphanNode;
+
+ if ( theElems.empty() ) // transform the whole mesh
+ {
+ // add all elements
+ SMDS_ElemIteratorPtr eIt = aMesh->elementsIterator();
+ while ( eIt->more() ) theElems.insert( eIt->next() );
+ // add orphan nodes
+ SMDS_NodeIteratorPtr nIt = aMesh->nodesIterator();
+ while ( nIt->more() )
+ {
+ const SMDS_MeshNode* node = nIt->next();
+ if ( node->NbInverseElements() == 0)
+ orphanNode.insert( node );
+ }
+ }
+
+ // loop on elements to transform nodes : first orphan nodes then elems
+ TIDSortedElemSet::iterator itElem;
+ TIDSortedElemSet *elements[] = {&orphanNode, &theElems };
+ for (int i=0; i<2; i++)
+ for ( itElem = elements[i]->begin(); itElem != elements[i]->end(); itElem++ ) {
+ const SMDS_MeshElement* elem = *itElem;
+ if ( !elem )
+ continue;
+
+ // loop on elem nodes
+ SMDS_ElemIteratorPtr itN = elem->nodesIterator();
+ while ( itN->more() ) {
+
+ const SMDS_MeshNode* node = cast2Node( itN->next() );
+ // check if a node has been already transformed
+ pair<TNodeNodeMap::iterator,bool> n2n_isnew =
+ nodeMap.insert( make_pair ( node, node ));
+ if ( !n2n_isnew.second )
+ continue;
+
+ double coord[3];
+ coord[0] = node->X();
+ coord[1] = node->Y();
+ coord[2] = node->Z();
+ theTrsf.Transforms( coord[0], coord[1], coord[2] );
+ if ( theTargetMesh ) {
+ const SMDS_MeshNode * newNode = aTgtMesh->AddNode( coord[0], coord[1], coord[2] );
+ n2n_isnew.first->second = newNode;
+ myLastCreatedNodes.Append(newNode);
+ srcNodes.Append( node );
+ }
+ else if ( theCopy ) {
+ const SMDS_MeshNode * newNode = aMesh->AddNode( coord[0], coord[1], coord[2] );
+ n2n_isnew.first->second = newNode;
+ myLastCreatedNodes.Append(newNode);
+ srcNodes.Append( node );
+ }
+ else {
+ aMesh->MoveNode( node, coord[0], coord[1], coord[2] );
+ // node position on shape becomes invalid
+ const_cast< SMDS_MeshNode* > ( node )->SetPosition
+ ( SMDS_SpacePosition::originSpacePosition() );
+ }
+
+ // keep inverse elements
+ if ( !theCopy && !theTargetMesh && needReverse ) {
+ SMDS_ElemIteratorPtr invElemIt = node->GetInverseElementIterator();
+ while ( invElemIt->more() ) {
+ const SMDS_MeshElement* iel = invElemIt->next();
+ inverseElemSet.insert( iel );
+ }
+ }
+ }
+ }
+
+ // either create new elements or reverse mirrored ones
+ if ( !theCopy && !needReverse && !theTargetMesh )
+ return PGroupIDs();
+
+ TIDSortedElemSet::iterator invElemIt = inverseElemSet.begin();
+ for ( ; invElemIt != inverseElemSet.end(); invElemIt++ )
+ theElems.insert( *invElemIt );
+
+ // Replicate or reverse elements
+
+ std::vector<int> iForw;
+ for ( itElem = theElems.begin(); itElem != theElems.end(); itElem++ )
+ {
+ const SMDS_MeshElement* elem = *itElem;
+ if ( !elem || elem->GetType() == SMDSAbs_Node )
+ continue;
+
+ int nbNodes = elem->NbNodes();
+ int elemType = elem->GetType();
+
+ if (elem->IsPoly()) {
+
+ // polygon or polyhedral volume
+ switch ( elemType ) {
+ case SMDSAbs_Face:
+ {
+ vector<const SMDS_MeshNode*> poly_nodes (nbNodes);
+ int iNode = 0;
+ SMDS_ElemIteratorPtr itN = elem->nodesIterator();
+ while (itN->more()) {
+ const SMDS_MeshNode* node =
+ static_cast<const SMDS_MeshNode*>(itN->next());
+ TNodeNodeMap::iterator nodeMapIt = nodeMap.find(node);
+ if (nodeMapIt == nodeMap.end())
+ break; // not all nodes transformed
+ if (needReverse) {
+ // reverse mirrored faces and volumes
+ poly_nodes[nbNodes - iNode - 1] = (*nodeMapIt).second;
+ } else {
+ poly_nodes[iNode] = (*nodeMapIt).second;
}
+ iNode++;
+ }
+ if ( iNode != nbNodes )
+ continue; // not all nodes transformed
+
+ if ( theTargetMesh ) {
+ myLastCreatedElems.Append(aTgtMesh->AddPolygonalFace(poly_nodes));
+ srcElems.Append( elem );
+ }
+ else if ( theCopy ) {
+ myLastCreatedElems.Append(aMesh->AddPolygonalFace(poly_nodes));
+ srcElems.Append( elem );
+ }
+ else {
+ aMesh->ChangePolygonNodes(elem, poly_nodes);
}
}
- else if (nbUniqueNodes == 5 && nbRepl == 4 ) {
- //////////////////// HEXAHEDRON ---> 2 tetrahedrons
- for ( int iFace = 0; iFace < 6; iFace++ ) {
- const int *ind = hexa.GetFaceNodesIndices( iFace ); // indices of face nodes
- if (curNodes[ind[ 0 ]] == curNodes[ind[ 1 ]] &&
- curNodes[ind[ 0 ]] == curNodes[ind[ 2 ]] &&
- curNodes[ind[ 0 ]] == curNodes[ind[ 3 ]] ) {
- // one face turns into a point ...
- int iOppFace = hexa.GetOppFaceIndex( iFace );
- ind = hexa.GetFaceNodesIndices( iOppFace );
- int nbStick = 0;
- iUnique = 2; // reverse a tetrahedron 1 bottom
- for ( iCur = 0; iCur < 4 && nbStick == 0; iCur++ ) {
- if ( curNodes[ind[ iCur ]] == curNodes[ind[ iCur + 1 ]] )
- nbStick++;
- else if ( iUnique >= 0 )
- uniqueNodes[ iUnique-- ] = curNodes[ind[ iCur ]];
+ break;
+ case SMDSAbs_Volume:
+ {
+ const SMDS_VtkVolume* aPolyedre =
+ dynamic_cast<const SMDS_VtkVolume*>( elem );
+ if (!aPolyedre) {
+ MESSAGE("Warning: bad volumic element");
+ continue;
+ }
+
+ vector<const SMDS_MeshNode*> poly_nodes; poly_nodes.reserve( nbNodes );
+ vector<int> quantities;
+
+ bool allTransformed = true;
+ int nbFaces = aPolyedre->NbFaces();
+ for (int iface = 1; iface <= nbFaces && allTransformed; iface++) {
+ int nbFaceNodes = aPolyedre->NbFaceNodes(iface);
+ for (int inode = 1; inode <= nbFaceNodes && allTransformed; inode++) {
+ const SMDS_MeshNode* node = aPolyedre->GetFaceNode(iface, inode);
+ TNodeNodeMap::iterator nodeMapIt = nodeMap.find(node);
+ if (nodeMapIt == nodeMap.end()) {
+ allTransformed = false; // not all nodes transformed
+ } else {
+ poly_nodes.push_back((*nodeMapIt).second);
}
- if ( nbStick == 0 ) {
- // ... and the opposite one is a quadrangle
- // set a top node
- const int* indTop = hexa.GetFaceNodesIndices( iFace );
- uniqueNodes[ 3 ] = curNodes[indTop[ 0 ]];
- nbUniqueNodes = 4;
- // tetrahedron 2
- SMDS_MeshElement* newElem =
- aMesh->AddVolume(curNodes[ind[ 0 ]],
- curNodes[ind[ 3 ]],
- curNodes[ind[ 2 ]],
- curNodes[indTop[ 0 ]]);
- myLastCreatedElems.Append(newElem);
- if ( aShapeId )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
- isOk = true;
+ if ( needReverse && allTransformed )
+ std::reverse( poly_nodes.end() - nbFaceNodes, poly_nodes.end() );
+ }
+ quantities.push_back(nbFaceNodes);
+ }
+ if ( !allTransformed )
+ continue; // not all nodes transformed
+
+ if ( theTargetMesh ) {
+ myLastCreatedElems.Append(aTgtMesh->AddPolyhedralVolume(poly_nodes, quantities));
+ srcElems.Append( elem );
+ }
+ else if ( theCopy ) {
+ myLastCreatedElems.Append(aMesh->AddPolyhedralVolume(poly_nodes, quantities));
+ srcElems.Append( elem );
+ }
+ else {
+ aMesh->ChangePolyhedronNodes(elem, poly_nodes, quantities);
+ }
+ }
+ break;
+ default:;
+ }
+ continue;
+
+ } // elem->isPoly()
+
+ // Regular elements
+
+ while ( iForw.size() < nbNodes ) iForw.push_back( iForw.size() );
+ const std::vector<int>& iRev = SMDS_MeshCell::reverseSmdsOrder( elem->GetEntityType() );
+ const std::vector<int>& i = needReverse ? iRev : iForw;
+
+ // find transformed nodes
+ vector<const SMDS_MeshNode*> nodes(nbNodes);
+ int iNode = 0;
+ SMDS_ElemIteratorPtr itN = elem->nodesIterator();
+ while ( itN->more() ) {
+ const SMDS_MeshNode* node =
+ static_cast<const SMDS_MeshNode*>( itN->next() );
+ TNodeNodeMap::iterator nodeMapIt = nodeMap.find( node );
+ if ( nodeMapIt == nodeMap.end() )
+ break; // not all nodes transformed
+ nodes[ i [ iNode++ ]] = (*nodeMapIt).second;
+ }
+ if ( iNode != nbNodes )
+ continue; // not all nodes transformed
+
+ if ( theTargetMesh ) {
+ if ( SMDS_MeshElement* copy =
+ targetMeshEditor.AddElement( nodes, elem->GetType(), elem->IsPoly() )) {
+ myLastCreatedElems.Append( copy );
+ srcElems.Append( elem );
+ }
+ }
+ else if ( theCopy ) {
+ if ( AddElement( nodes, elem->GetType(), elem->IsPoly() ))
+ srcElems.Append( elem );
+ }
+ else {
+ // reverse element as it was reversed by transformation
+ if ( nbNodes > 2 )
+ aMesh->ChangeElementNodes( elem, &nodes[0], nbNodes );
+ }
+
+ } // loop on elements
+
+ PGroupIDs newGroupIDs;
+
+ if ( ( theMakeGroups && theCopy ) ||
+ ( theMakeGroups && theTargetMesh ) )
+ newGroupIDs = generateGroups( srcNodes, srcElems, groupPostfix, theTargetMesh );
+
+ return newGroupIDs;
+}
+
+//=======================================================================
+/*!
+ * \brief Create groups of elements made during transformation
+ * \param nodeGens - nodes making corresponding myLastCreatedNodes
+ * \param elemGens - elements making corresponding myLastCreatedElems
+ * \param postfix - to append to names of new groups
+ */
+//=======================================================================
+
+SMESH_MeshEditor::PGroupIDs
+SMESH_MeshEditor::generateGroups(const SMESH_SequenceOfElemPtr& nodeGens,
+ const SMESH_SequenceOfElemPtr& elemGens,
+ const std::string& postfix,
+ SMESH_Mesh* targetMesh)
+{
+ PGroupIDs newGroupIDs( new list<int> );
+ SMESH_Mesh* mesh = targetMesh ? targetMesh : GetMesh();
+
+ // Sort existing groups by types and collect their names
+
+ // to store an old group and a generated new one
+ typedef pair< SMESHDS_GroupBase*, SMDS_MeshGroup* > TOldNewGroup;
+ vector< list< TOldNewGroup > > groupsByType( SMDSAbs_NbElementTypes );
+ // group names
+ set< string > groupNames;
+ //
+ SMDS_MeshGroup* nullNewGroup = (SMDS_MeshGroup*) 0;
+ SMESH_Mesh::GroupIteratorPtr groupIt = GetMesh()->GetGroups();
+ while ( groupIt->more() ) {
+ SMESH_Group * group = groupIt->next();
+ if ( !group ) continue;
+ SMESHDS_GroupBase* groupDS = group->GetGroupDS();
+ if ( !groupDS || groupDS->IsEmpty() ) continue;
+ groupNames.insert( group->GetName() );
+ groupDS->SetStoreName( group->GetName() );
+ groupsByType[ groupDS->GetType() ].push_back( make_pair( groupDS, nullNewGroup ));
+ }
+
+ // Groups creation
+
+ // loop on nodes and elements
+ for ( int isNodes = 0; isNodes < 2; ++isNodes )
+ {
+ const SMESH_SequenceOfElemPtr& gens = isNodes ? nodeGens : elemGens;
+ const SMESH_SequenceOfElemPtr& elems = isNodes ? myLastCreatedNodes : myLastCreatedElems;
+ if ( gens.Length() != elems.Length() )
+ throw SALOME_Exception(LOCALIZED("invalid args"));
+
+ // loop on created elements
+ for (int iElem = 1; iElem <= elems.Length(); ++iElem )
+ {
+ const SMDS_MeshElement* sourceElem = gens( iElem );
+ if ( !sourceElem ) {
+ MESSAGE("generateGroups(): NULL source element");
+ continue;
+ }
+ list< TOldNewGroup > & groupsOldNew = groupsByType[ sourceElem->GetType() ];
+ if ( groupsOldNew.empty() ) {
+ while ( iElem < gens.Length() && gens( iElem+1 ) == sourceElem )
+ ++iElem; // skip all elements made by sourceElem
+ continue;
+ }
+ // collect all elements made by sourceElem
+ list< const SMDS_MeshElement* > resultElems;
+ if ( const SMDS_MeshElement* resElem = elems( iElem ))
+ if ( resElem != sourceElem )
+ resultElems.push_back( resElem );
+ while ( iElem < gens.Length() && gens( iElem+1 ) == sourceElem )
+ if ( const SMDS_MeshElement* resElem = elems( ++iElem ))
+ if ( resElem != sourceElem )
+ resultElems.push_back( resElem );
+ // do not generate element groups from node ones
+ if ( sourceElem->GetType() == SMDSAbs_Node &&
+ elems( iElem )->GetType() != SMDSAbs_Node )
+ continue;
+
+ // add resultElems to groups made by ones the sourceElem belongs to
+ list< TOldNewGroup >::iterator gOldNew, gLast = groupsOldNew.end();
+ for ( gOldNew = groupsOldNew.begin(); gOldNew != gLast; ++gOldNew )
+ {
+ SMESHDS_GroupBase* oldGroup = gOldNew->first;
+ if ( oldGroup->Contains( sourceElem )) // sourceElem in oldGroup
+ {
+ SMDS_MeshGroup* & newGroup = gOldNew->second;
+ if ( !newGroup )// create a new group
+ {
+ // make a name
+ string name = oldGroup->GetStoreName();
+ if ( !targetMesh ) {
+ name += "_";
+ name += postfix;
+ int nb = 0;
+ while ( !groupNames.insert( name ).second ) // name exists
+ {
+ if ( nb == 0 ) {
+ name += "_1";
+ }
+ else {
+ TCollection_AsciiString nbStr(nb+1);
+ name.resize( name.rfind('_')+1 );
+ name += nbStr.ToCString();
+ }
+ ++nb;
}
- break;
}
+ // make a group
+ int id;
+ SMESH_Group* group = mesh->AddGroup( resultElems.back()->GetType(),
+ name.c_str(), id );
+ SMESHDS_Group* groupDS = static_cast<SMESHDS_Group*>(group->GetGroupDS());
+ newGroup = & groupDS->SMDSGroup();
+ newGroupIDs->push_back( id );
+ }
+
+ // fill in a new group
+ list< const SMDS_MeshElement* >::iterator resLast = resultElems.end(), resElemIt;
+ for ( resElemIt = resultElems.begin(); resElemIt != resLast; ++resElemIt )
+ newGroup->Add( *resElemIt );
+ }
+ }
+ } // loop on created elements
+ }// loop on nodes and elements
+
+ return newGroupIDs;
+}
+
+//================================================================================
+/*!
+ * \brief Return list of group of nodes close to each other within theTolerance
+ * Search among theNodes or in the whole mesh if theNodes is empty using
+ * an Octree algorithm
+ */
+//================================================================================
+
+void SMESH_MeshEditor::FindCoincidentNodes (TIDSortedNodeSet & theNodes,
+ const double theTolerance,
+ TListOfListOfNodes & theGroupsOfNodes)
+{
+ myLastCreatedElems.Clear();
+ myLastCreatedNodes.Clear();
+
+ if ( theNodes.empty() )
+ { // get all nodes in the mesh
+ SMDS_NodeIteratorPtr nIt = GetMeshDS()->nodesIterator(/*idInceasingOrder=*/true);
+ while ( nIt->more() )
+ theNodes.insert( theNodes.end(),nIt->next());
+ }
+
+ SMESH_OctreeNode::FindCoincidentNodes ( theNodes, &theGroupsOfNodes, theTolerance);
+}
+
+
+//=======================================================================
+/*!
+ * \brief Implementation of search for the node closest to point
+ */
+//=======================================================================
+
+struct SMESH_NodeSearcherImpl: public SMESH_NodeSearcher
+{
+ //---------------------------------------------------------------------
+ /*!
+ * \brief Constructor
+ */
+ SMESH_NodeSearcherImpl( const SMESHDS_Mesh* theMesh )
+ {
+ myMesh = ( SMESHDS_Mesh* ) theMesh;
+
+ TIDSortedNodeSet nodes;
+ if ( theMesh ) {
+ SMDS_NodeIteratorPtr nIt = theMesh->nodesIterator(/*idInceasingOrder=*/true);
+ while ( nIt->more() )
+ nodes.insert( nodes.end(), nIt->next() );
+ }
+ myOctreeNode = new SMESH_OctreeNode(nodes) ;
+
+ // get max size of a leaf box
+ SMESH_OctreeNode* tree = myOctreeNode;
+ while ( !tree->isLeaf() )
+ {
+ SMESH_OctreeNodeIteratorPtr cIt = tree->GetChildrenIterator();
+ if ( cIt->more() )
+ tree = cIt->next();
+ }
+ myHalfLeafSize = tree->maxSize() / 2.;
+ }
+
+ //---------------------------------------------------------------------
+ /*!
+ * \brief Move node and update myOctreeNode accordingly
+ */
+ void MoveNode( const SMDS_MeshNode* node, const gp_Pnt& toPnt )
+ {
+ myOctreeNode->UpdateByMoveNode( node, toPnt );
+ myMesh->MoveNode( node, toPnt.X(), toPnt.Y(), toPnt.Z() );
+ }
+
+ //---------------------------------------------------------------------
+ /*!
+ * \brief Do it's job
+ */
+ const SMDS_MeshNode* FindClosestTo( const gp_Pnt& thePnt )
+ {
+ map<double, const SMDS_MeshNode*> dist2Nodes;
+ myOctreeNode->NodesAround( thePnt.Coord(), dist2Nodes, myHalfLeafSize );
+ if ( !dist2Nodes.empty() )
+ return dist2Nodes.begin()->second;
+ list<const SMDS_MeshNode*> nodes;
+ //myOctreeNode->NodesAround( &tgtNode, &nodes, myHalfLeafSize );
+
+ double minSqDist = DBL_MAX;
+ if ( nodes.empty() ) // get all nodes of OctreeNode's closest to thePnt
+ {
+ // sort leafs by their distance from thePnt
+ typedef map< double, SMESH_OctreeNode* > TDistTreeMap;
+ TDistTreeMap treeMap;
+ list< SMESH_OctreeNode* > treeList;
+ list< SMESH_OctreeNode* >::iterator trIt;
+ treeList.push_back( myOctreeNode );
+
+ gp_XYZ pointNode( thePnt.X(), thePnt.Y(), thePnt.Z() );
+ bool pointInside = myOctreeNode->isInside( pointNode, myHalfLeafSize );
+ for ( trIt = treeList.begin(); trIt != treeList.end(); ++trIt)
+ {
+ SMESH_OctreeNode* tree = *trIt;
+ if ( !tree->isLeaf() ) // put children to the queue
+ {
+ if ( pointInside && !tree->isInside( pointNode, myHalfLeafSize )) continue;
+ SMESH_OctreeNodeIteratorPtr cIt = tree->GetChildrenIterator();
+ while ( cIt->more() )
+ treeList.push_back( cIt->next() );
+ }
+ else if ( tree->NbNodes() ) // put a tree to the treeMap
+ {
+ const Bnd_B3d& box = tree->getBox();
+ double sqDist = thePnt.SquareDistance( 0.5 * ( box.CornerMin() + box.CornerMax() ));
+ pair<TDistTreeMap::iterator,bool> it_in = treeMap.insert( make_pair( sqDist, tree ));
+ if ( !it_in.second ) // not unique distance to box center
+ treeMap.insert( it_in.first, make_pair( sqDist + 1e-13*treeMap.size(), tree ));
+ }
+ }
+ // find distance after which there is no sense to check tree's
+ double sqLimit = DBL_MAX;
+ TDistTreeMap::iterator sqDist_tree = treeMap.begin();
+ if ( treeMap.size() > 5 ) {
+ SMESH_OctreeNode* closestTree = sqDist_tree->second;
+ const Bnd_B3d& box = closestTree->getBox();
+ double limit = sqrt( sqDist_tree->first ) + sqrt ( box.SquareExtent() );
+ sqLimit = limit * limit;
+ }
+ // get all nodes from trees
+ for ( ; sqDist_tree != treeMap.end(); ++sqDist_tree) {
+ if ( sqDist_tree->first > sqLimit )
+ break;
+ SMESH_OctreeNode* tree = sqDist_tree->second;
+ tree->NodesAround( tree->GetNodeIterator()->next(), &nodes );
+ }
+ }
+ // find closest among nodes
+ minSqDist = DBL_MAX;
+ const SMDS_MeshNode* closestNode = 0;
+ list<const SMDS_MeshNode*>::iterator nIt = nodes.begin();
+ for ( ; nIt != nodes.end(); ++nIt ) {
+ double sqDist = thePnt.SquareDistance( SMESH_TNodeXYZ( *nIt ) );
+ if ( minSqDist > sqDist ) {
+ closestNode = *nIt;
+ minSqDist = sqDist;
+ }
+ }
+ return closestNode;
+ }
+
+ //---------------------------------------------------------------------
+ /*!
+ * \brief Destructor
+ */
+ ~SMESH_NodeSearcherImpl() { delete myOctreeNode; }
+
+ //---------------------------------------------------------------------
+ /*!
+ * \brief Return the node tree
+ */
+ const SMESH_OctreeNode* getTree() const { return myOctreeNode; }
+
+private:
+ SMESH_OctreeNode* myOctreeNode;
+ SMESHDS_Mesh* myMesh;
+ double myHalfLeafSize; // max size of a leaf box
+};
+
+//=======================================================================
+/*!
+ * \brief Return SMESH_NodeSearcher
+ */
+//=======================================================================
+
+SMESH_NodeSearcher* SMESH_MeshEditor::GetNodeSearcher()
+{
+ return new SMESH_NodeSearcherImpl( GetMeshDS() );
+}
+
+// ========================================================================
+namespace // Utils used in SMESH_ElementSearcherImpl::FindElementsByPoint()
+{
+ const int MaxNbElemsInLeaf = 10; // maximal number of elements in a leaf of tree
+ const int MaxLevel = 7; // maximal tree height -> nb terminal boxes: 8^7 = 2097152
+ const double NodeRadius = 1e-9; // to enlarge bnd box of element
+
+ //=======================================================================
+ /*!
+ * \brief Octal tree of bounding boxes of elements
+ */
+ //=======================================================================
+
+ class ElementBndBoxTree : public SMESH_Octree
+ {
+ public:
+
+ ElementBndBoxTree(const SMDS_Mesh& mesh, SMDSAbs_ElementType elemType, SMDS_ElemIteratorPtr theElemIt = SMDS_ElemIteratorPtr(), double tolerance = NodeRadius );
+ void getElementsNearPoint( const gp_Pnt& point, TIDSortedElemSet& foundElems);
+ void getElementsNearLine ( const gp_Ax1& line, TIDSortedElemSet& foundElems);
+ ~ElementBndBoxTree();
+
+ protected:
+ ElementBndBoxTree() {}
+ SMESH_Octree* allocateOctreeChild() const { return new ElementBndBoxTree; }
+ void buildChildrenData();
+ Bnd_B3d* buildRootBox();
+ private:
+ //!< Bounding box of element
+ struct ElementBox : public Bnd_B3d
+ {
+ const SMDS_MeshElement* _element;
+ int _refCount; // an ElementBox can be included in several tree branches
+ ElementBox(const SMDS_MeshElement* elem, double tolerance);
+ };
+ vector< ElementBox* > _elements;
+ };
+
+ //================================================================================
+ /*!
+ * \brief ElementBndBoxTree creation
+ */
+ //================================================================================
+
+ ElementBndBoxTree::ElementBndBoxTree(const SMDS_Mesh& mesh, SMDSAbs_ElementType elemType, SMDS_ElemIteratorPtr theElemIt, double tolerance)
+ :SMESH_Octree( new SMESH_Octree::Limit( MaxLevel, /*minSize=*/0. ))
+ {
+ int nbElems = mesh.GetMeshInfo().NbElements( elemType );
+ _elements.reserve( nbElems );
+
+ SMDS_ElemIteratorPtr elemIt = theElemIt ? theElemIt : mesh.elementsIterator( elemType );
+ while ( elemIt->more() )
+ _elements.push_back( new ElementBox( elemIt->next(),tolerance ));
+
+ if ( _elements.size() > MaxNbElemsInLeaf )
+ compute();
+ else
+ myIsLeaf = true;
+ }
+
+ //================================================================================
+ /*!
+ * \brief Destructor
+ */
+ //================================================================================
+
+ ElementBndBoxTree::~ElementBndBoxTree()
+ {
+ for ( int i = 0; i < _elements.size(); ++i )
+ if ( --_elements[i]->_refCount <= 0 )
+ delete _elements[i];
+ }
+
+ //================================================================================
+ /*!
+ * \brief Return the maximal box
+ */
+ //================================================================================
+
+ Bnd_B3d* ElementBndBoxTree::buildRootBox()
+ {
+ Bnd_B3d* box = new Bnd_B3d;
+ for ( int i = 0; i < _elements.size(); ++i )
+ box->Add( *_elements[i] );
+ return box;
+ }
+
+ //================================================================================
+ /*!
+ * \brief Redistrubute element boxes among children
+ */
+ //================================================================================
+
+ void ElementBndBoxTree::buildChildrenData()
+ {
+ for ( int i = 0; i < _elements.size(); ++i )
+ {
+ for (int j = 0; j < 8; j++)
+ {
+ if ( !_elements[i]->IsOut( myChildren[j]->getBox() ))
+ {
+ _elements[i]->_refCount++;
+ ((ElementBndBoxTree*)myChildren[j])->_elements.push_back( _elements[i]);
+ }
+ }
+ _elements[i]->_refCount--;
+ }
+ _elements.clear();
+
+ for (int j = 0; j < 8; j++)
+ {
+ ElementBndBoxTree* child = static_cast<ElementBndBoxTree*>( myChildren[j]);
+ if ( child->_elements.size() <= MaxNbElemsInLeaf )
+ child->myIsLeaf = true;
+
+ if ( child->_elements.capacity() - child->_elements.size() > 1000 )
+ child->_elements.resize( child->_elements.size() ); // compact
+ }
+ }
+
+ //================================================================================
+ /*!
+ * \brief Return elements which can include the point
+ */
+ //================================================================================
+
+ void ElementBndBoxTree::getElementsNearPoint( const gp_Pnt& point,
+ TIDSortedElemSet& foundElems)
+ {
+ if ( level() && getBox().IsOut( point.XYZ() ))
+ return;
+
+ if ( isLeaf() )
+ {
+ for ( int i = 0; i < _elements.size(); ++i )
+ if ( !_elements[i]->IsOut( point.XYZ() ))
+ foundElems.insert( _elements[i]->_element );
+ }
+ else
+ {
+ for (int i = 0; i < 8; i++)
+ ((ElementBndBoxTree*) myChildren[i])->getElementsNearPoint( point, foundElems );
+ }
+ }
+
+ //================================================================================
+ /*!
+ * \brief Return elements which can be intersected by the line
+ */
+ //================================================================================
+
+ void ElementBndBoxTree::getElementsNearLine( const gp_Ax1& line,
+ TIDSortedElemSet& foundElems)
+ {
+ if ( level() && getBox().IsOut( line ))
+ return;
+
+ if ( isLeaf() )
+ {
+ for ( int i = 0; i < _elements.size(); ++i )
+ if ( !_elements[i]->IsOut( line ))
+ foundElems.insert( _elements[i]->_element );
+ }
+ else
+ {
+ for (int i = 0; i < 8; i++)
+ ((ElementBndBoxTree*) myChildren[i])->getElementsNearLine( line, foundElems );
+ }
+ }
+
+ //================================================================================
+ /*!
+ * \brief Construct the element box
+ */
+ //================================================================================
+
+ ElementBndBoxTree::ElementBox::ElementBox(const SMDS_MeshElement* elem, double tolerance)
+ {
+ _element = elem;
+ _refCount = 1;
+ SMDS_ElemIteratorPtr nIt = elem->nodesIterator();
+ while ( nIt->more() )
+ Add( SMESH_TNodeXYZ( cast2Node( nIt->next() )));
+ Enlarge( tolerance );
+ }
+
+} // namespace
+
+//=======================================================================
+/*!
+ * \brief Implementation of search for the elements by point and
+ * of classification of point in 2D mesh
+ */
+//=======================================================================
+
+struct SMESH_ElementSearcherImpl: public SMESH_ElementSearcher
+{
+ SMESHDS_Mesh* _mesh;
+ SMDS_ElemIteratorPtr _meshPartIt;
+ ElementBndBoxTree* _ebbTree;
+ SMESH_NodeSearcherImpl* _nodeSearcher;
+ SMDSAbs_ElementType _elementType;
+ double _tolerance;
+ bool _outerFacesFound;
+ set<const SMDS_MeshElement*> _outerFaces; // empty means "no internal faces at all"
+
+ SMESH_ElementSearcherImpl( SMESHDS_Mesh& mesh, SMDS_ElemIteratorPtr elemIt=SMDS_ElemIteratorPtr())
+ : _mesh(&mesh),_meshPartIt(elemIt),_ebbTree(0),_nodeSearcher(0),_tolerance(-1),_outerFacesFound(false) {}
+ ~SMESH_ElementSearcherImpl()
+ {
+ if ( _ebbTree ) delete _ebbTree; _ebbTree = 0;
+ if ( _nodeSearcher ) delete _nodeSearcher; _nodeSearcher = 0;
+ }
+ virtual int FindElementsByPoint(const gp_Pnt& point,
+ SMDSAbs_ElementType type,
+ vector< const SMDS_MeshElement* >& foundElements);
+ virtual TopAbs_State GetPointState(const gp_Pnt& point);
+
+ void GetElementsNearLine( const gp_Ax1& line,
+ SMDSAbs_ElementType type,
+ vector< const SMDS_MeshElement* >& foundElems);
+ double getTolerance();
+ bool getIntersParamOnLine(const gp_Lin& line, const SMDS_MeshElement* face,
+ const double tolerance, double & param);
+ void findOuterBoundary(const SMDS_MeshElement* anyOuterFace);
+ bool isOuterBoundary(const SMDS_MeshElement* face) const
+ {
+ return _outerFaces.empty() || _outerFaces.count(face);
+ }
+ struct TInters //!< data of intersection of the line and the mesh face (used in GetPointState())
+ {
+ const SMDS_MeshElement* _face;
+ gp_Vec _faceNorm;
+ bool _coincides; //!< the line lays in face plane
+ TInters(const SMDS_MeshElement* face, const gp_Vec& faceNorm, bool coinc=false)
+ : _face(face), _faceNorm( faceNorm ), _coincides( coinc ) {}
+ };
+ struct TFaceLink //!< link and faces sharing it (used in findOuterBoundary())
+ {
+ SMESH_TLink _link;
+ TIDSortedElemSet _faces;
+ TFaceLink( const SMDS_MeshNode* n1, const SMDS_MeshNode* n2, const SMDS_MeshElement* face)
+ : _link( n1, n2 ), _faces( &face, &face + 1) {}
+ };
+};
+
+ostream& operator<< (ostream& out, const SMESH_ElementSearcherImpl::TInters& i)
+{
+ return out << "TInters(face=" << ( i._face ? i._face->GetID() : 0)
+ << ", _coincides="<<i._coincides << ")";
+}
+
+//=======================================================================
+/*!
+ * \brief define tolerance for search
+ */
+//=======================================================================
+
+double SMESH_ElementSearcherImpl::getTolerance()
+{
+ if ( _tolerance < 0 )
+ {
+ const SMDS_MeshInfo& meshInfo = _mesh->GetMeshInfo();
+
+ _tolerance = 0;
+ if ( _nodeSearcher && meshInfo.NbNodes() > 1 )
+ {
+ double boxSize = _nodeSearcher->getTree()->maxSize();
+ _tolerance = 1e-8 * boxSize/* / meshInfo.NbNodes()*/;
+ }
+ else if ( _ebbTree && meshInfo.NbElements() > 0 )
+ {
+ double boxSize = _ebbTree->maxSize();
+ _tolerance = 1e-8 * boxSize/* / meshInfo.NbElements()*/;
+ }
+ if ( _tolerance == 0 )
+ {
+ // define tolerance by size of a most complex element
+ int complexType = SMDSAbs_Volume;
+ while ( complexType > SMDSAbs_All &&
+ meshInfo.NbElements( SMDSAbs_ElementType( complexType )) < 1 )
+ --complexType;
+ if ( complexType == SMDSAbs_All ) return 0; // empty mesh
+ double elemSize;
+ if ( complexType == int( SMDSAbs_Node ))
+ {
+ SMDS_NodeIteratorPtr nodeIt = _mesh->nodesIterator();
+ elemSize = 1;
+ if ( meshInfo.NbNodes() > 2 )
+ elemSize = SMESH_TNodeXYZ( nodeIt->next() ).Distance( nodeIt->next() );
+ }
+ else
+ {
+ SMDS_ElemIteratorPtr elemIt =
+ _mesh->elementsIterator( SMDSAbs_ElementType( complexType ));
+ const SMDS_MeshElement* elem = elemIt->next();
+ SMDS_ElemIteratorPtr nodeIt = elem->nodesIterator();
+ SMESH_TNodeXYZ n1( cast2Node( nodeIt->next() ));
+ elemSize = 0;
+ while ( nodeIt->more() )
+ {
+ double dist = n1.Distance( cast2Node( nodeIt->next() ));
+ elemSize = max( dist, elemSize );
+ }
+ }
+ _tolerance = 1e-4 * elemSize;
+ }
+ }
+ return _tolerance;
+}
+
+//================================================================================
+/*!
+ * \brief Find intersection of the line and an edge of face and return parameter on line
+ */
+//================================================================================
+
+bool SMESH_ElementSearcherImpl::getIntersParamOnLine(const gp_Lin& line,
+ const SMDS_MeshElement* face,
+ const double tol,
+ double & param)
+{
+ int nbInts = 0;
+ param = 0;
+
+ GeomAPI_ExtremaCurveCurve anExtCC;
+ Handle(Geom_Curve) lineCurve = new Geom_Line( line );
+
+ int nbNodes = face->IsQuadratic() ? face->NbNodes()/2 : face->NbNodes();
+ for ( int i = 0; i < nbNodes && nbInts < 2; ++i )
+ {
+ GC_MakeSegment edge( SMESH_TNodeXYZ( face->GetNode( i )),
+ SMESH_TNodeXYZ( face->GetNode( (i+1)%nbNodes) ));
+ anExtCC.Init( lineCurve, edge);
+ if ( anExtCC.NbExtrema() > 0 && anExtCC.LowerDistance() <= tol)
+ {
+ Quantity_Parameter pl, pe;
+ anExtCC.LowerDistanceParameters( pl, pe );
+ param += pl;
+ if ( ++nbInts == 2 )
+ break;
+ }
+ }
+ if ( nbInts > 0 ) param /= nbInts;
+ return nbInts > 0;
+}
+//================================================================================
+/*!
+ * \brief Find all faces belonging to the outer boundary of mesh
+ */
+//================================================================================
+
+void SMESH_ElementSearcherImpl::findOuterBoundary(const SMDS_MeshElement* outerFace)
+{
+ if ( _outerFacesFound ) return;
+
+ // Collect all outer faces by passing from one outer face to another via their links
+ // and BTW find out if there are internal faces at all.
+
+ // checked links and links where outer boundary meets internal one
+ set< SMESH_TLink > visitedLinks, seamLinks;
+
+ // links to treat with already visited faces sharing them
+ list < TFaceLink > startLinks;
+
+ // load startLinks with the first outerFace
+ startLinks.push_back( TFaceLink( outerFace->GetNode(0), outerFace->GetNode(1), outerFace));
+ _outerFaces.insert( outerFace );
+
+ TIDSortedElemSet emptySet;
+ while ( !startLinks.empty() )
+ {
+ const SMESH_TLink& link = startLinks.front()._link;
+ TIDSortedElemSet& faces = startLinks.front()._faces;
+
+ outerFace = *faces.begin();
+ // find other faces sharing the link
+ const SMDS_MeshElement* f;
+ while (( f = SMESH_MeshEditor::FindFaceInSet(link.node1(), link.node2(), emptySet, faces )))
+ faces.insert( f );
+
+ // select another outer face among the found
+ const SMDS_MeshElement* outerFace2 = 0;
+ if ( faces.size() == 2 )
+ {
+ outerFace2 = (outerFace == *faces.begin() ? *faces.rbegin() : *faces.begin());
+ }
+ else if ( faces.size() > 2 )
+ {
+ seamLinks.insert( link );
+
+ // link direction within the outerFace
+ gp_Vec n1n2( SMESH_TNodeXYZ( link.node1()),
+ SMESH_TNodeXYZ( link.node2()));
+ int i1 = outerFace->GetNodeIndex( link.node1() );
+ int i2 = outerFace->GetNodeIndex( link.node2() );
+ bool rev = ( abs(i2-i1) == 1 ? i1 > i2 : i2 > i1 );
+ if ( rev ) n1n2.Reverse();
+ // outerFace normal
+ gp_XYZ ofNorm, fNorm;
+ if ( SMESH_Algo::FaceNormal( outerFace, ofNorm, /*normalized=*/false ))
+ {
+ // direction from the link inside outerFace
+ gp_Vec dirInOF = gp_Vec( ofNorm ) ^ n1n2;
+ // sort all other faces by angle with the dirInOF
+ map< double, const SMDS_MeshElement* > angle2Face;
+ set< const SMDS_MeshElement*, TIDCompare >::const_iterator face = faces.begin();
+ for ( ; face != faces.end(); ++face )
+ {
+ if ( !SMESH_Algo::FaceNormal( *face, fNorm, /*normalized=*/false ))
+ continue;
+ gp_Vec dirInF = gp_Vec( fNorm ) ^ n1n2;
+ double angle = dirInOF.AngleWithRef( dirInF, n1n2 );
+ if ( angle < 0 ) angle += 2. * M_PI;
+ angle2Face.insert( make_pair( angle, *face ));
+ }
+ if ( !angle2Face.empty() )
+ outerFace2 = angle2Face.begin()->second;
+ }
+ }
+ // store the found outer face and add its links to continue seaching from
+ if ( outerFace2 )
+ {
+ _outerFaces.insert( outerFace );
+ int nbNodes = outerFace2->NbNodes()/( outerFace2->IsQuadratic() ? 2 : 1 );
+ for ( int i = 0; i < nbNodes; ++i )
+ {
+ SMESH_TLink link2( outerFace2->GetNode(i), outerFace2->GetNode((i+1)%nbNodes));
+ if ( visitedLinks.insert( link2 ).second )
+ startLinks.push_back( TFaceLink( link2.node1(), link2.node2(), outerFace2 ));
+ }
+ }
+ startLinks.pop_front();
+ }
+ _outerFacesFound = true;
+
+ if ( !seamLinks.empty() )
+ {
+ // There are internal boundaries touching the outher one,
+ // find all faces of internal boundaries in order to find
+ // faces of boundaries of holes, if any.
+
+ }
+ else
+ {
+ _outerFaces.clear();
+ }
+}
+
+//=======================================================================
+/*!
+ * \brief Find elements of given type where the given point is IN or ON.
+ * Returns nb of found elements and elements them-selves.
+ *
+ * 'ALL' type means elements of any type excluding nodes and 0D elements
+ */
+//=======================================================================
+
+int SMESH_ElementSearcherImpl::
+FindElementsByPoint(const gp_Pnt& point,
+ SMDSAbs_ElementType type,
+ vector< const SMDS_MeshElement* >& foundElements)
+{
+ foundElements.clear();
+
+ double tolerance = getTolerance();
+
+ // =================================================================================
+ if ( type == SMDSAbs_Node || type == SMDSAbs_0DElement )
+ {
+ if ( !_nodeSearcher )
+ _nodeSearcher = new SMESH_NodeSearcherImpl( _mesh );
+
+ const SMDS_MeshNode* closeNode = _nodeSearcher->FindClosestTo( point );
+ if ( !closeNode ) return foundElements.size();
+
+ if ( point.Distance( SMESH_TNodeXYZ( closeNode )) > tolerance )
+ return foundElements.size(); // to far from any node
+
+ if ( type == SMDSAbs_Node )
+ {
+ foundElements.push_back( closeNode );
+ }
+ else
+ {
+ SMDS_ElemIteratorPtr elemIt = closeNode->GetInverseElementIterator( SMDSAbs_0DElement );
+ while ( elemIt->more() )
+ foundElements.push_back( elemIt->next() );
+ }
+ }
+ // =================================================================================
+ else // elements more complex than 0D
+ {
+ if ( !_ebbTree || _elementType != type )
+ {
+ if ( _ebbTree ) delete _ebbTree;
+ _ebbTree = new ElementBndBoxTree( *_mesh, _elementType = type, _meshPartIt, tolerance );
+ }
+ TIDSortedElemSet suspectElems;
+ _ebbTree->getElementsNearPoint( point, suspectElems );
+ TIDSortedElemSet::iterator elem = suspectElems.begin();
+ for ( ; elem != suspectElems.end(); ++elem )
+ if ( !SMESH_MeshEditor::isOut( *elem, point, tolerance ))
+ foundElements.push_back( *elem );
+ }
+ return foundElements.size();
+}
+
+//================================================================================
+/*!
+ * \brief Classify the given point in the closed 2D mesh
+ */
+//================================================================================
+
+TopAbs_State SMESH_ElementSearcherImpl::GetPointState(const gp_Pnt& point)
+{
+ double tolerance = getTolerance();
+ if ( !_ebbTree || _elementType != SMDSAbs_Face )
+ {
+ if ( _ebbTree ) delete _ebbTree;
+ _ebbTree = new ElementBndBoxTree( *_mesh, _elementType = SMDSAbs_Face, _meshPartIt );
+ }
+ // Algo: analyse transition of a line starting at the point through mesh boundary;
+ // try three lines parallel to axis of the coordinate system and perform rough
+ // analysis. If solution is not clear perform thorough analysis.
+
+ const int nbAxes = 3;
+ gp_Dir axisDir[ nbAxes ] = { gp::DX(), gp::DY(), gp::DZ() };
+ map< double, TInters > paramOnLine2TInters[ nbAxes ];
+ list< TInters > tangentInters[ nbAxes ]; // of faces whose plane includes the line
+ multimap< int, int > nbInt2Axis; // to find the simplest case
+ for ( int axis = 0; axis < nbAxes; ++axis )
+ {
+ gp_Ax1 lineAxis( point, axisDir[axis]);
+ gp_Lin line ( lineAxis );
+
+ TIDSortedElemSet suspectFaces; // faces possibly intersecting the line
+ _ebbTree->getElementsNearLine( lineAxis, suspectFaces );
+
+ // Intersect faces with the line
+
+ map< double, TInters > & u2inters = paramOnLine2TInters[ axis ];
+ TIDSortedElemSet::iterator face = suspectFaces.begin();
+ for ( ; face != suspectFaces.end(); ++face )
+ {
+ // get face plane
+ gp_XYZ fNorm;
+ if ( !SMESH_Algo::FaceNormal( *face, fNorm, /*normalized=*/false)) continue;
+ gp_Pln facePlane( SMESH_TNodeXYZ( (*face)->GetNode(0)), fNorm );
+
+ // perform intersection
+ IntAna_IntConicQuad intersection( line, IntAna_Quadric( facePlane ));
+ if ( !intersection.IsDone() )
+ continue;
+ if ( intersection.IsInQuadric() )
+ {
+ tangentInters[ axis ].push_back( TInters( *face, fNorm, true ));
+ }
+ else if ( ! intersection.IsParallel() && intersection.NbPoints() > 0 )
+ {
+ gp_Pnt intersectionPoint = intersection.Point(1);
+ if ( !SMESH_MeshEditor::isOut( *face, intersectionPoint, tolerance ))
+ u2inters.insert(make_pair( intersection.ParamOnConic(1), TInters( *face, fNorm )));
+ }
+ }
+ // Analyse intersections roughly
+
+ int nbInter = u2inters.size();
+ if ( nbInter == 0 )
+ return TopAbs_OUT;
+
+ double f = u2inters.begin()->first, l = u2inters.rbegin()->first;
+ if ( nbInter == 1 ) // not closed mesh
+ return fabs( f ) < tolerance ? TopAbs_ON : TopAbs_UNKNOWN;
+
+ if ( fabs( f ) < tolerance || fabs( l ) < tolerance )
+ return TopAbs_ON;
+
+ if ( (f<0) == (l<0) )
+ return TopAbs_OUT;
+
+ int nbIntBeforePoint = std::distance( u2inters.begin(), u2inters.lower_bound(0));
+ int nbIntAfterPoint = nbInter - nbIntBeforePoint;
+ if ( nbIntBeforePoint == 1 || nbIntAfterPoint == 1 )
+ return TopAbs_IN;
+
+ nbInt2Axis.insert( make_pair( min( nbIntBeforePoint, nbIntAfterPoint ), axis ));
+
+ if ( _outerFacesFound ) break; // pass to thorough analysis
+
+ } // three attempts - loop on CS axes
+
+ // Analyse intersections thoroughly.
+ // We make two loops maximum, on the first one we only exclude touching intersections,
+ // on the second, if situation is still unclear, we gather and use information on
+ // position of faces (internal or outer). If faces position is already gathered,
+ // we make the second loop right away.
+
+ for ( int hasPositionInfo = _outerFacesFound; hasPositionInfo < 2; ++hasPositionInfo )
+ {
+ multimap< int, int >::const_iterator nb_axis = nbInt2Axis.begin();
+ for ( ; nb_axis != nbInt2Axis.end(); ++nb_axis )
+ {
+ int axis = nb_axis->second;
+ map< double, TInters > & u2inters = paramOnLine2TInters[ axis ];
+
+ gp_Ax1 lineAxis( point, axisDir[axis]);
+ gp_Lin line ( lineAxis );
+
+ // add tangent intersections to u2inters
+ double param;
+ list< TInters >::const_iterator tgtInt = tangentInters[ axis ].begin();
+ for ( ; tgtInt != tangentInters[ axis ].end(); ++tgtInt )
+ if ( getIntersParamOnLine( line, tgtInt->_face, tolerance, param ))
+ u2inters.insert(make_pair( param, *tgtInt ));
+ tangentInters[ axis ].clear();
+
+ // Count intersections before and after the point excluding touching ones.
+ // If hasPositionInfo we count intersections of outer boundary only
+
+ int nbIntBeforePoint = 0, nbIntAfterPoint = 0;
+ double f = numeric_limits<double>::max(), l = -numeric_limits<double>::max();
+ map< double, TInters >::iterator u_int1 = u2inters.begin(), u_int2 = u_int1;
+ bool ok = ! u_int1->second._coincides;
+ while ( ok && u_int1 != u2inters.end() )
+ {
+ double u = u_int1->first;
+ bool touchingInt = false;
+ if ( ++u_int2 != u2inters.end() )
+ {
+ // skip intersections at the same point (if the line passes through edge or node)
+ int nbSamePnt = 0;
+ while ( u_int2 != u2inters.end() && fabs( u_int2->first - u ) < tolerance )
+ {
+ ++nbSamePnt;
+ ++u_int2;
+ }
+
+ // skip tangent intersections
+ int nbTgt = 0;
+ const SMDS_MeshElement* prevFace = u_int1->second._face;
+ while ( ok && u_int2->second._coincides )
+ {
+ if ( SMESH_Algo::GetCommonNodes(prevFace , u_int2->second._face).empty() )
+ ok = false;
+ else
+ {
+ nbTgt++;
+ u_int2++;
+ ok = ( u_int2 != u2inters.end() );
+ }
+ }
+ if ( !ok ) break;
+
+ // skip intersections at the same point after tangent intersections
+ if ( nbTgt > 0 )
+ {
+ double u2 = u_int2->first;
+ ++u_int2;
+ while ( u_int2 != u2inters.end() && fabs( u_int2->first - u2 ) < tolerance )
+ {
+ ++nbSamePnt;
+ ++u_int2;
+ }
+ }
+ // decide if we skipped a touching intersection
+ if ( nbSamePnt + nbTgt > 0 )
+ {
+ double minDot = numeric_limits<double>::max(), maxDot = -numeric_limits<double>::max();
+ map< double, TInters >::iterator u_int = u_int1;
+ for ( ; u_int != u_int2; ++u_int )
+ {
+ if ( u_int->second._coincides ) continue;
+ double dot = u_int->second._faceNorm * line.Direction();
+ if ( dot > maxDot ) maxDot = dot;
+ if ( dot < minDot ) minDot = dot;
+ }
+ touchingInt = ( minDot*maxDot < 0 );
+ }
+ }
+ if ( !touchingInt )
+ {
+ if ( !hasPositionInfo || isOuterBoundary( u_int1->second._face ))
+ {
+ if ( u < 0 )
+ ++nbIntBeforePoint;
+ else
+ ++nbIntAfterPoint;
+ }
+ if ( u < f ) f = u;
+ if ( u > l ) l = u;
+ }
+
+ u_int1 = u_int2; // to next intersection
+
+ } // loop on intersections with one line
+
+ if ( ok )
+ {
+ if ( fabs( f ) < tolerance || fabs( l ) < tolerance )
+ return TopAbs_ON;
+
+ if ( nbIntBeforePoint == 0 || nbIntAfterPoint == 0)
+ return TopAbs_OUT;
+
+ if ( nbIntBeforePoint + nbIntAfterPoint == 1 ) // not closed mesh
+ return fabs( f ) < tolerance ? TopAbs_ON : TopAbs_UNKNOWN;
+
+ if ( nbIntBeforePoint == 1 || nbIntAfterPoint == 1 )
+ return TopAbs_IN;
+
+ if ( (f<0) == (l<0) )
+ return TopAbs_OUT;
+
+ if ( hasPositionInfo )
+ return nbIntBeforePoint % 2 ? TopAbs_IN : TopAbs_OUT;
+ }
+ } // loop on intersections of the tree lines - thorough analysis
+
+ if ( !hasPositionInfo )
+ {
+ // gather info on faces position - is face in the outer boundary or not
+ map< double, TInters > & u2inters = paramOnLine2TInters[ 0 ];
+ findOuterBoundary( u2inters.begin()->second._face );
+ }
+
+ } // two attempts - with and w/o faces position info in the mesh
+
+ return TopAbs_UNKNOWN;
+}
+
+//=======================================================================
+/*!
+ * \brief Return elements possibly intersecting the line
+ */
+//=======================================================================
+
+void SMESH_ElementSearcherImpl::GetElementsNearLine( const gp_Ax1& line,
+ SMDSAbs_ElementType type,
+ vector< const SMDS_MeshElement* >& foundElems)
+{
+ if ( !_ebbTree || _elementType != type )
+ {
+ if ( _ebbTree ) delete _ebbTree;
+ _ebbTree = new ElementBndBoxTree( *_mesh, _elementType = type, _meshPartIt );
+ }
+ TIDSortedElemSet suspectFaces; // elements possibly intersecting the line
+ _ebbTree->getElementsNearLine( line, suspectFaces );
+ foundElems.assign( suspectFaces.begin(), suspectFaces.end());
+}
+
+//=======================================================================
+/*!
+ * \brief Return SMESH_ElementSearcher
+ */
+//=======================================================================
+
+SMESH_ElementSearcher* SMESH_MeshEditor::GetElementSearcher()
+{
+ return new SMESH_ElementSearcherImpl( *GetMeshDS() );
+}
+
+//=======================================================================
+/*!
+ * \brief Return SMESH_ElementSearcher acting on a sub-set of elements
+ */
+//=======================================================================
+
+SMESH_ElementSearcher* SMESH_MeshEditor::GetElementSearcher(SMDS_ElemIteratorPtr elemIt)
+{
+ return new SMESH_ElementSearcherImpl( *GetMeshDS(), elemIt );
+}
+
+//=======================================================================
+/*!
+ * \brief Return true if the point is IN or ON of the element
+ */
+//=======================================================================
+
+bool SMESH_MeshEditor::isOut( const SMDS_MeshElement* element, const gp_Pnt& point, double tol )
+{
+ if ( element->GetType() == SMDSAbs_Volume)
+ {
+ return SMDS_VolumeTool( element ).IsOut( point.X(), point.Y(), point.Z(), tol );
+ }
+
+ // get ordered nodes
+
+ vector< gp_XYZ > xyz;
+ vector<const SMDS_MeshNode*> nodeList;
+
+ SMDS_ElemIteratorPtr nodeIt = element->nodesIterator();
+ if ( element->IsQuadratic() ) {
+ if (const SMDS_VtkFace* f=dynamic_cast<const SMDS_VtkFace*>(element))
+ nodeIt = f->interlacedNodesElemIterator();
+ else if (const SMDS_VtkEdge* e =dynamic_cast<const SMDS_VtkEdge*>(element))
+ nodeIt = e->interlacedNodesElemIterator();
+ }
+ while ( nodeIt->more() )
+ {
+ const SMDS_MeshNode* node = cast2Node( nodeIt->next() );
+ xyz.push_back( SMESH_TNodeXYZ(node) );
+ nodeList.push_back(node);
+ }
+
+ int i, nbNodes = element->NbNodes();
+
+ if ( element->GetType() == SMDSAbs_Face ) // --------------------------------------------------
+ {
+ // compute face normal
+ gp_Vec faceNorm(0,0,0);
+ xyz.push_back( xyz.front() );
+ nodeList.push_back( nodeList.front() );
+ for ( i = 0; i < nbNodes; ++i )
+ {
+ gp_Vec edge1( xyz[i+1], xyz[i]);
+ gp_Vec edge2( xyz[i+1], xyz[(i+2)%nbNodes] );
+ faceNorm += edge1 ^ edge2;
+ }
+ double normSize = faceNorm.Magnitude();
+ if ( normSize <= tol )
+ {
+ // degenerated face: point is out if it is out of all face edges
+ for ( i = 0; i < nbNodes; ++i )
+ {
+ SMDS_LinearEdge edge( nodeList[i], nodeList[i+1] );
+ if ( !isOut( &edge, point, tol ))
+ return false;
+ }
+ return true;
+ }
+ faceNorm /= normSize;
+
+ // check if the point lays on face plane
+ gp_Vec n2p( xyz[0], point );
+ if ( fabs( n2p * faceNorm ) > tol )
+ return true; // not on face plane
+
+ // check if point is out of face boundary:
+ // define it by closest transition of a ray point->infinity through face boundary
+ // on the face plane.
+ // First, find normal of a plane perpendicular to face plane, to be used as a cutting tool
+ // to find intersections of the ray with the boundary.
+ gp_Vec ray = n2p;
+ gp_Vec plnNorm = ray ^ faceNorm;
+ normSize = plnNorm.Magnitude();
+ if ( normSize <= tol ) return false; // point coincides with the first node
+ plnNorm /= normSize;
+ // for each node of the face, compute its signed distance to the plane
+ vector<double> dist( nbNodes + 1);
+ for ( i = 0; i < nbNodes; ++i )
+ {
+ gp_Vec n2p( xyz[i], point );
+ dist[i] = n2p * plnNorm;
+ }
+ dist.back() = dist.front();
+ // find the closest intersection
+ int iClosest = -1;
+ double rClosest, distClosest = 1e100;;
+ gp_Pnt pClosest;
+ for ( i = 0; i < nbNodes; ++i )
+ {
+ double r;
+ if ( fabs( dist[i]) < tol )
+ r = 0.;
+ else if ( fabs( dist[i+1]) < tol )
+ r = 1.;
+ else if ( dist[i] * dist[i+1] < 0 )
+ r = dist[i] / ( dist[i] - dist[i+1] );
+ else
+ continue; // no intersection
+ gp_Pnt pInt = xyz[i] * (1.-r) + xyz[i+1] * r;
+ gp_Vec p2int ( point, pInt);
+ if ( p2int * ray > -tol ) // right half-space
+ {
+ double intDist = p2int.SquareMagnitude();
+ if ( intDist < distClosest )
+ {
+ iClosest = i;
+ rClosest = r;
+ pClosest = pInt;
+ distClosest = intDist;
+ }
+ }
+ }
+ if ( iClosest < 0 )
+ return true; // no intesections - out
+
+ // analyse transition
+ gp_Vec edge( xyz[iClosest], xyz[iClosest+1] );
+ gp_Vec edgeNorm = -( edge ^ faceNorm ); // normal to intersected edge pointing out of face
+ gp_Vec p2int ( point, pClosest );
+ bool out = (edgeNorm * p2int) < -tol;
+ if ( rClosest > 0. && rClosest < 1. ) // not node intersection
+ return out;
+
+ // ray pass through a face node; analyze transition through an adjacent edge
+ gp_Pnt p1 = xyz[ (rClosest == 0.) ? ((iClosest+nbNodes-1) % nbNodes) : (iClosest+1) ];
+ gp_Pnt p2 = xyz[ (rClosest == 0.) ? iClosest : ((iClosest+2) % nbNodes) ];
+ gp_Vec edgeAdjacent( p1, p2 );
+ gp_Vec edgeNorm2 = -( edgeAdjacent ^ faceNorm );
+ bool out2 = (edgeNorm2 * p2int) < -tol;
+
+ bool covexCorner = ( edgeNorm * edgeAdjacent * (rClosest==1. ? 1. : -1.)) < 0;
+ return covexCorner ? (out || out2) : (out && out2);
+ }
+ if ( element->GetType() == SMDSAbs_Edge ) // --------------------------------------------------
+ {
+ // point is out of edge if it is NOT ON any straight part of edge
+ // (we consider quadratic edge as being composed of two straight parts)
+ for ( i = 1; i < nbNodes; ++i )
+ {
+ gp_Vec edge( xyz[i-1], xyz[i]);
+ gp_Vec n1p ( xyz[i-1], point);
+ double dist = ( edge ^ n1p ).Magnitude() / edge.Magnitude();
+ if ( dist > tol )
+ continue;
+ gp_Vec n2p( xyz[i], point );
+ if ( fabs( edge.Magnitude() - n1p.Magnitude() - n2p.Magnitude()) > tol )
+ continue;
+ return false; // point is ON this part
+ }
+ return true;
+ }
+ // Node or 0D element -------------------------------------------------------------------------
+ {
+ gp_Vec n2p ( xyz[0], point );
+ return n2p.Magnitude() <= tol;
+ }
+ return true;
+}
+
+//=======================================================================
+//function : SimplifyFace
+//purpose :
+//=======================================================================
+int SMESH_MeshEditor::SimplifyFace (const vector<const SMDS_MeshNode *> faceNodes,
+ vector<const SMDS_MeshNode *>& poly_nodes,
+ vector<int>& quantities) const
+{
+ int nbNodes = faceNodes.size();
+
+ if (nbNodes < 3)
+ return 0;
+
+ set<const SMDS_MeshNode*> nodeSet;
+
+ // get simple seq of nodes
+ //const SMDS_MeshNode* simpleNodes[ nbNodes ];
+ vector<const SMDS_MeshNode*> simpleNodes( nbNodes );
+ int iSimple = 0, nbUnique = 0;
+
+ simpleNodes[iSimple++] = faceNodes[0];
+ nbUnique++;
+ for (int iCur = 1; iCur < nbNodes; iCur++) {
+ if (faceNodes[iCur] != simpleNodes[iSimple - 1]) {
+ simpleNodes[iSimple++] = faceNodes[iCur];
+ if (nodeSet.insert( faceNodes[iCur] ).second)
+ nbUnique++;
+ }
+ }
+ int nbSimple = iSimple;
+ if (simpleNodes[nbSimple - 1] == simpleNodes[0]) {
+ nbSimple--;
+ iSimple--;
+ }
+
+ if (nbUnique < 3)
+ return 0;
+
+ // separate loops
+ int nbNew = 0;
+ bool foundLoop = (nbSimple > nbUnique);
+ while (foundLoop) {
+ foundLoop = false;
+ set<const SMDS_MeshNode*> loopSet;
+ for (iSimple = 0; iSimple < nbSimple && !foundLoop; iSimple++) {
+ const SMDS_MeshNode* n = simpleNodes[iSimple];
+ if (!loopSet.insert( n ).second) {
+ foundLoop = true;
+
+ // separate loop
+ int iC = 0, curLast = iSimple;
+ for (; iC < curLast; iC++) {
+ if (simpleNodes[iC] == n) break;
+ }
+ int loopLen = curLast - iC;
+ if (loopLen > 2) {
+ // create sub-element
+ nbNew++;
+ quantities.push_back(loopLen);
+ for (; iC < curLast; iC++) {
+ poly_nodes.push_back(simpleNodes[iC]);
+ }
+ }
+ // shift the rest nodes (place from the first loop position)
+ for (iC = curLast + 1; iC < nbSimple; iC++) {
+ simpleNodes[iC - loopLen] = simpleNodes[iC];
+ }
+ nbSimple -= loopLen;
+ iSimple -= loopLen;
+ }
+ } // for (iSimple = 0; iSimple < nbSimple; iSimple++)
+ } // while (foundLoop)
+
+ if (iSimple > 2) {
+ nbNew++;
+ quantities.push_back(iSimple);
+ for (int i = 0; i < iSimple; i++)
+ poly_nodes.push_back(simpleNodes[i]);
+ }
+
+ return nbNew;
+}
+
+//=======================================================================
+//function : MergeNodes
+//purpose : In each group, the cdr of nodes are substituted by the first one
+// in all elements.
+//=======================================================================
+
+void SMESH_MeshEditor::MergeNodes (TListOfListOfNodes & theGroupsOfNodes)
+{
+ MESSAGE("MergeNodes");
+ myLastCreatedElems.Clear();
+ myLastCreatedNodes.Clear();
+
+ SMESHDS_Mesh* aMesh = GetMeshDS();
+
+ TNodeNodeMap nodeNodeMap; // node to replace - new node
+ set<const SMDS_MeshElement*> elems; // all elements with changed nodes
+ list< int > rmElemIds, rmNodeIds;
+
+ // Fill nodeNodeMap and elems
+
+ TListOfListOfNodes::iterator grIt = theGroupsOfNodes.begin();
+ for ( ; grIt != theGroupsOfNodes.end(); grIt++ ) {
+ list<const SMDS_MeshNode*>& nodes = *grIt;
+ list<const SMDS_MeshNode*>::iterator nIt = nodes.begin();
+ const SMDS_MeshNode* nToKeep = *nIt;
+ //MESSAGE("node to keep " << nToKeep->GetID());
+ for ( ++nIt; nIt != nodes.end(); nIt++ ) {
+ const SMDS_MeshNode* nToRemove = *nIt;
+ nodeNodeMap.insert( TNodeNodeMap::value_type( nToRemove, nToKeep ));
+ if ( nToRemove != nToKeep ) {
+ //MESSAGE(" node to remove " << nToRemove->GetID());
+ rmNodeIds.push_back( nToRemove->GetID() );
+ AddToSameGroups( nToKeep, nToRemove, aMesh );
+ }
+
+ SMDS_ElemIteratorPtr invElemIt = nToRemove->GetInverseElementIterator();
+ while ( invElemIt->more() ) {
+ const SMDS_MeshElement* elem = invElemIt->next();
+ elems.insert(elem);
+ }
+ }
+ }
+ // Change element nodes or remove an element
+
+ set<const SMDS_MeshElement*>::iterator eIt = elems.begin();
+ for ( ; eIt != elems.end(); eIt++ ) {
+ const SMDS_MeshElement* elem = *eIt;
+ //MESSAGE(" ---- inverse elem on node to remove " << elem->GetID());
+ int nbNodes = elem->NbNodes();
+ int aShapeId = FindShape( elem );
+
+ set<const SMDS_MeshNode*> nodeSet;
+ vector< const SMDS_MeshNode*> curNodes( nbNodes ), uniqueNodes( nbNodes );
+ int iUnique = 0, iCur = 0, nbRepl = 0;
+ vector<int> iRepl( nbNodes );
+
+ // get new seq of nodes
+ SMDS_ElemIteratorPtr itN = elem->nodesIterator();
+ while ( itN->more() ) {
+ const SMDS_MeshNode* n =
+ static_cast<const SMDS_MeshNode*>( itN->next() );
+
+ TNodeNodeMap::iterator nnIt = nodeNodeMap.find( n );
+ if ( nnIt != nodeNodeMap.end() ) { // n sticks
+ n = (*nnIt).second;
+ // BUG 0020185: begin
+ {
+ bool stopRecur = false;
+ set<const SMDS_MeshNode*> nodesRecur;
+ nodesRecur.insert(n);
+ while (!stopRecur) {
+ TNodeNodeMap::iterator nnIt_i = nodeNodeMap.find( n );
+ if ( nnIt_i != nodeNodeMap.end() ) { // n sticks
+ n = (*nnIt_i).second;
+ if (!nodesRecur.insert(n).second) {
+ // error: recursive dependancy
+ stopRecur = true;
+ }
+ }
+ else
+ stopRecur = true;
+ }
+ }
+ // BUG 0020185: end
+ }
+ curNodes[ iCur ] = n;
+ bool isUnique = nodeSet.insert( n ).second;
+ if ( isUnique )
+ uniqueNodes[ iUnique++ ] = n;
+ else
+ iRepl[ nbRepl++ ] = iCur;
+ iCur++;
+ }
+
+ // Analyse element topology after replacement
+
+ bool isOk = true;
+ int nbUniqueNodes = nodeSet.size();
+ //MESSAGE("nbNodes nbUniqueNodes " << nbNodes << " " << nbUniqueNodes);
+ if ( nbNodes != nbUniqueNodes ) { // some nodes stick
+ // Polygons and Polyhedral volumes
+ if (elem->IsPoly()) {
+
+ if (elem->GetType() == SMDSAbs_Face) {
+ // Polygon
+ vector<const SMDS_MeshNode *> face_nodes (nbNodes);
+ int inode = 0;
+ for (; inode < nbNodes; inode++) {
+ face_nodes[inode] = curNodes[inode];
+ }
+
+ vector<const SMDS_MeshNode *> polygons_nodes;
+ vector<int> quantities;
+ int nbNew = SimplifyFace(face_nodes, polygons_nodes, quantities);
+ if (nbNew > 0) {
+ inode = 0;
+ for (int iface = 0; iface < nbNew; iface++) {
+ int nbNodes = quantities[iface];
+ vector<const SMDS_MeshNode *> poly_nodes (nbNodes);
+ for (int ii = 0; ii < nbNodes; ii++, inode++) {
+ poly_nodes[ii] = polygons_nodes[inode];
+ }
+ SMDS_MeshElement* newElem = aMesh->AddPolygonalFace(poly_nodes);
+ myLastCreatedElems.Append(newElem);
+ if (aShapeId)
+ aMesh->SetMeshElementOnShape(newElem, aShapeId);
+ }
+
+ MESSAGE("ChangeElementNodes MergeNodes Polygon");
+ //aMesh->ChangeElementNodes(elem, &polygons_nodes[inode], quantities[nbNew - 1]);
+ vector<const SMDS_MeshNode *> polynodes(polygons_nodes.begin()+inode,polygons_nodes.end());
+ int quid =0;
+ if (nbNew > 0) quid = nbNew - 1;
+ vector<int> newquant(quantities.begin()+quid, quantities.end());
+ const SMDS_MeshElement* newElem = 0;
+ newElem = aMesh->AddPolyhedralVolume(polynodes, newquant);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId && newElem )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ rmElemIds.push_back(elem->GetID());
+ }
+ else {
+ rmElemIds.push_back(elem->GetID());
+ }
+
+ }
+ else if (elem->GetType() == SMDSAbs_Volume) {
+ // Polyhedral volume
+ if (nbUniqueNodes < 4) {
+ rmElemIds.push_back(elem->GetID());
+ }
+ else {
+ // each face has to be analyzed in order to check volume validity
+ const SMDS_VtkVolume* aPolyedre =
+ dynamic_cast<const SMDS_VtkVolume*>( elem );
+ if (aPolyedre) {
+ int nbFaces = aPolyedre->NbFaces();
+
+ vector<const SMDS_MeshNode *> poly_nodes;
+ vector<int> quantities;
+
+ for (int iface = 1; iface <= nbFaces; iface++) {
+ int nbFaceNodes = aPolyedre->NbFaceNodes(iface);
+ vector<const SMDS_MeshNode *> faceNodes (nbFaceNodes);
+
+ for (int inode = 1; inode <= nbFaceNodes; inode++) {
+ const SMDS_MeshNode * faceNode = aPolyedre->GetFaceNode(iface, inode);
+ TNodeNodeMap::iterator nnIt = nodeNodeMap.find(faceNode);
+ if (nnIt != nodeNodeMap.end()) { // faceNode sticks
+ faceNode = (*nnIt).second;
+ }
+ faceNodes[inode - 1] = faceNode;
+ }
+
+ SimplifyFace(faceNodes, poly_nodes, quantities);
+ }
+
+ if (quantities.size() > 3) {
+ // to be done: remove coincident faces
+ }
+
+ if (quantities.size() > 3)
+ {
+ MESSAGE("ChangeElementNodes MergeNodes Polyhedron");
+ //aMesh->ChangePolyhedronNodes(elem, poly_nodes, quantities);
+ const SMDS_MeshElement* newElem = 0;
+ newElem = aMesh->AddPolyhedralVolume(poly_nodes, quantities);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId && newElem )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ rmElemIds.push_back(elem->GetID());
+ }
+ }
+ else {
+ rmElemIds.push_back(elem->GetID());
+ }
+ }
+ }
+ else {
+ }
+
+ continue;
+ } // poly element
+
+ // Regular elements
+ // TODO not all the possible cases are solved. Find something more generic?
+ switch ( nbNodes ) {
+ case 2: ///////////////////////////////////// EDGE
+ isOk = false; break;
+ case 3: ///////////////////////////////////// TRIANGLE
+ isOk = false; break;
+ case 4:
+ if ( elem->GetType() == SMDSAbs_Volume ) // TETRAHEDRON
+ isOk = false;
+ else { //////////////////////////////////// QUADRANGLE
+ if ( nbUniqueNodes < 3 )
+ isOk = false;
+ else if ( nbRepl == 2 && iRepl[ 1 ] - iRepl[ 0 ] == 2 )
+ isOk = false; // opposite nodes stick
+ //MESSAGE("isOk " << isOk);
+ }
+ break;
+ case 6: ///////////////////////////////////// PENTAHEDRON
+ if ( nbUniqueNodes == 4 ) {
+ // ---------------------------------> tetrahedron
+ if (nbRepl == 3 &&
+ iRepl[ 0 ] > 2 && iRepl[ 1 ] > 2 && iRepl[ 2 ] > 2 ) {
+ // all top nodes stick: reverse a bottom
+ uniqueNodes[ 0 ] = curNodes [ 1 ];
+ uniqueNodes[ 1 ] = curNodes [ 0 ];
+ }
+ else if (nbRepl == 3 &&
+ iRepl[ 0 ] < 3 && iRepl[ 1 ] < 3 && iRepl[ 2 ] < 3 ) {
+ // all bottom nodes stick: set a top before
+ uniqueNodes[ 3 ] = uniqueNodes [ 0 ];
+ uniqueNodes[ 0 ] = curNodes [ 3 ];
+ uniqueNodes[ 1 ] = curNodes [ 4 ];
+ uniqueNodes[ 2 ] = curNodes [ 5 ];
+ }
+ else if (nbRepl == 4 &&
+ iRepl[ 2 ] - iRepl [ 0 ] == 3 && iRepl[ 3 ] - iRepl [ 1 ] == 3 ) {
+ // a lateral face turns into a line: reverse a bottom
+ uniqueNodes[ 0 ] = curNodes [ 1 ];
+ uniqueNodes[ 1 ] = curNodes [ 0 ];
+ }
+ else
+ isOk = false;
+ }
+ else if ( nbUniqueNodes == 5 ) {
+ // PENTAHEDRON --------------------> 2 tetrahedrons
+ if ( nbRepl == 2 && iRepl[ 1 ] - iRepl [ 0 ] == 3 ) {
+ // a bottom node sticks with a linked top one
+ // 1.
+ SMDS_MeshElement* newElem =
+ aMesh->AddVolume(curNodes[ 3 ],
+ curNodes[ 4 ],
+ curNodes[ 5 ],
+ curNodes[ iRepl[ 0 ] == 2 ? 1 : 2 ]);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ // 2. : reverse a bottom
+ uniqueNodes[ 0 ] = curNodes [ 1 ];
+ uniqueNodes[ 1 ] = curNodes [ 0 ];
+ nbUniqueNodes = 4;
+ }
+ else
+ isOk = false;
+ }
+ else
+ isOk = false;
+ break;
+ case 8: {
+ if(elem->IsQuadratic()) { // Quadratic quadrangle
+ // 1 5 2
+ // +---+---+
+ // | |
+ // | |
+ // 4+ +6
+ // | |
+ // | |
+ // +---+---+
+ // 0 7 3
+ isOk = false;
+ if(nbRepl==2) {
+ MESSAGE("nbRepl=2: " << iRepl[0] << " " << iRepl[1]);
+ }
+ if(nbRepl==3) {
+ MESSAGE("nbRepl=3: " << iRepl[0] << " " << iRepl[1] << " " << iRepl[2]);
+ nbUniqueNodes = 6;
+ if( iRepl[0]==0 && iRepl[1]==1 && iRepl[2]==4 ) {
+ uniqueNodes[0] = curNodes[0];
+ uniqueNodes[1] = curNodes[2];
+ uniqueNodes[2] = curNodes[3];
+ uniqueNodes[3] = curNodes[5];
+ uniqueNodes[4] = curNodes[6];
+ uniqueNodes[5] = curNodes[7];
+ isOk = true;
+ }
+ if( iRepl[0]==0 && iRepl[1]==3 && iRepl[2]==7 ) {
+ uniqueNodes[0] = curNodes[0];
+ uniqueNodes[1] = curNodes[1];
+ uniqueNodes[2] = curNodes[2];
+ uniqueNodes[3] = curNodes[4];
+ uniqueNodes[4] = curNodes[5];
+ uniqueNodes[5] = curNodes[6];
+ isOk = true;
+ }
+ if( iRepl[0]==0 && iRepl[1]==4 && iRepl[2]==7 ) {
+ uniqueNodes[0] = curNodes[1];
+ uniqueNodes[1] = curNodes[2];
+ uniqueNodes[2] = curNodes[3];
+ uniqueNodes[3] = curNodes[5];
+ uniqueNodes[4] = curNodes[6];
+ uniqueNodes[5] = curNodes[0];
+ isOk = true;
+ }
+ if( iRepl[0]==1 && iRepl[1]==2 && iRepl[2]==5 ) {
+ uniqueNodes[0] = curNodes[0];
+ uniqueNodes[1] = curNodes[1];
+ uniqueNodes[2] = curNodes[3];
+ uniqueNodes[3] = curNodes[4];
+ uniqueNodes[4] = curNodes[6];
+ uniqueNodes[5] = curNodes[7];
+ isOk = true;
+ }
+ if( iRepl[0]==1 && iRepl[1]==4 && iRepl[2]==5 ) {
+ uniqueNodes[0] = curNodes[0];
+ uniqueNodes[1] = curNodes[2];
+ uniqueNodes[2] = curNodes[3];
+ uniqueNodes[3] = curNodes[1];
+ uniqueNodes[4] = curNodes[6];
+ uniqueNodes[5] = curNodes[7];
+ isOk = true;
+ }
+ if( iRepl[0]==2 && iRepl[1]==3 && iRepl[2]==6 ) {
+ uniqueNodes[0] = curNodes[0];
+ uniqueNodes[1] = curNodes[1];
+ uniqueNodes[2] = curNodes[2];
+ uniqueNodes[3] = curNodes[4];
+ uniqueNodes[4] = curNodes[5];
+ uniqueNodes[5] = curNodes[7];
+ isOk = true;
+ }
+ if( iRepl[0]==2 && iRepl[1]==5 && iRepl[2]==6 ) {
+ uniqueNodes[0] = curNodes[0];
+ uniqueNodes[1] = curNodes[1];
+ uniqueNodes[2] = curNodes[3];
+ uniqueNodes[3] = curNodes[4];
+ uniqueNodes[4] = curNodes[2];
+ uniqueNodes[5] = curNodes[7];
+ isOk = true;
+ }
+ if( iRepl[0]==3 && iRepl[1]==6 && iRepl[2]==7 ) {
+ uniqueNodes[0] = curNodes[0];
+ uniqueNodes[1] = curNodes[1];
+ uniqueNodes[2] = curNodes[2];
+ uniqueNodes[3] = curNodes[4];
+ uniqueNodes[4] = curNodes[5];
+ uniqueNodes[5] = curNodes[3];
+ isOk = true;
+ }
+ }
+ if(nbRepl==4) {
+ MESSAGE("nbRepl=4: " << iRepl[0] << " " << iRepl[1] << " " << iRepl[2] << " " << iRepl[3]);
+ }
+ if(nbRepl==5) {
+ MESSAGE("nbRepl=5: " << iRepl[0] << " " << iRepl[1] << " " << iRepl[2] << " " << iRepl[3] << " " << iRepl[4]);
+ }
+ break;
+ }
+ //////////////////////////////////// HEXAHEDRON
+ isOk = false;
+ SMDS_VolumeTool hexa (elem);
+ hexa.SetExternalNormal();
+ if ( nbUniqueNodes == 4 && nbRepl == 4 ) {
+ //////////////////////// HEX ---> 1 tetrahedron
+ for ( int iFace = 0; iFace < 6; iFace++ ) {
+ const int *ind = hexa.GetFaceNodesIndices( iFace ); // indices of face nodes
+ if (curNodes[ind[ 0 ]] == curNodes[ind[ 1 ]] &&
+ curNodes[ind[ 0 ]] == curNodes[ind[ 2 ]] &&
+ curNodes[ind[ 0 ]] == curNodes[ind[ 3 ]] ) {
+ // one face turns into a point ...
+ int iOppFace = hexa.GetOppFaceIndex( iFace );
+ ind = hexa.GetFaceNodesIndices( iOppFace );
+ int nbStick = 0;
+ for ( iCur = 0; iCur < 4 && nbStick < 2; iCur++ ) {
+ if ( curNodes[ind[ iCur ]] == curNodes[ind[ iCur + 1 ]] )
+ nbStick++;
+ }
+ if ( nbStick == 1 ) {
+ // ... and the opposite one - into a triangle.
+ // set a top node
+ ind = hexa.GetFaceNodesIndices( iFace );
+ uniqueNodes[ 3 ] = curNodes[ind[ 0 ]];
+ isOk = true;
+ }
+ break;
+ }
+ }
+ }
+ else if ( nbUniqueNodes == 6 && nbRepl == 2 ) {
+ //////////////////////// HEX ---> 1 prism
+ int nbTria = 0, iTria[3];
+ const int *ind; // indices of face nodes
+ // look for triangular faces
+ for ( int iFace = 0; iFace < 6 && nbTria < 3; iFace++ ) {
+ ind = hexa.GetFaceNodesIndices( iFace );
+ TIDSortedNodeSet faceNodes;
+ for ( iCur = 0; iCur < 4; iCur++ )
+ faceNodes.insert( curNodes[ind[iCur]] );
+ if ( faceNodes.size() == 3 )
+ iTria[ nbTria++ ] = iFace;
+ }
+ // check if triangles are opposite
+ if ( nbTria == 2 && iTria[0] == hexa.GetOppFaceIndex( iTria[1] ))
+ {
+ isOk = true;
+ // set nodes of the bottom triangle
+ ind = hexa.GetFaceNodesIndices( iTria[ 0 ]);
+ vector<int> indB;
+ for ( iCur = 0; iCur < 4; iCur++ )
+ if ( ind[iCur] != iRepl[0] && ind[iCur] != iRepl[1])
+ indB.push_back( ind[iCur] );
+ if ( !hexa.IsForward() )
+ std::swap( indB[0], indB[2] );
+ for ( iCur = 0; iCur < 3; iCur++ )
+ uniqueNodes[ iCur ] = curNodes[indB[iCur]];
+ // set nodes of the top triangle
+ const int *indT = hexa.GetFaceNodesIndices( iTria[ 1 ]);
+ for ( iCur = 0; iCur < 3; ++iCur )
+ for ( int j = 0; j < 4; ++j )
+ if ( hexa.IsLinked( indB[ iCur ], indT[ j ] ))
+ {
+ uniqueNodes[ iCur + 3 ] = curNodes[ indT[ j ]];
+ break;
+ }
+ }
+ break;
+ }
+ else if (nbUniqueNodes == 5 && nbRepl == 4 ) {
+ //////////////////// HEXAHEDRON ---> 2 tetrahedrons
+ for ( int iFace = 0; iFace < 6; iFace++ ) {
+ const int *ind = hexa.GetFaceNodesIndices( iFace ); // indices of face nodes
+ if (curNodes[ind[ 0 ]] == curNodes[ind[ 1 ]] &&
+ curNodes[ind[ 0 ]] == curNodes[ind[ 2 ]] &&
+ curNodes[ind[ 0 ]] == curNodes[ind[ 3 ]] ) {
+ // one face turns into a point ...
+ int iOppFace = hexa.GetOppFaceIndex( iFace );
+ ind = hexa.GetFaceNodesIndices( iOppFace );
+ int nbStick = 0;
+ iUnique = 2; // reverse a tetrahedron 1 bottom
+ for ( iCur = 0; iCur < 4 && nbStick == 0; iCur++ ) {
+ if ( curNodes[ind[ iCur ]] == curNodes[ind[ iCur + 1 ]] )
+ nbStick++;
+ else if ( iUnique >= 0 )
+ uniqueNodes[ iUnique-- ] = curNodes[ind[ iCur ]];
+ }
+ if ( nbStick == 0 ) {
+ // ... and the opposite one is a quadrangle
+ // set a top node
+ const int* indTop = hexa.GetFaceNodesIndices( iFace );
+ uniqueNodes[ 3 ] = curNodes[indTop[ 0 ]];
+ nbUniqueNodes = 4;
+ // tetrahedron 2
+ SMDS_MeshElement* newElem =
+ aMesh->AddVolume(curNodes[ind[ 0 ]],
+ curNodes[ind[ 3 ]],
+ curNodes[ind[ 2 ]],
+ curNodes[indTop[ 0 ]]);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ isOk = true;
+ }
+ break;
+ }
+ }
+ }
+ else if ( nbUniqueNodes == 6 && nbRepl == 4 ) {
+ ////////////////// HEXAHEDRON ---> 2 tetrahedrons or 1 prism
+ // find indices of quad and tri faces
+ int iQuadFace[ 6 ], iTriFace[ 6 ], nbQuad = 0, nbTri = 0, iFace;
+ for ( iFace = 0; iFace < 6; iFace++ ) {
+ const int *ind = hexa.GetFaceNodesIndices( iFace ); // indices of face nodes
+ nodeSet.clear();
+ for ( iCur = 0; iCur < 4; iCur++ )
+ nodeSet.insert( curNodes[ind[ iCur ]] );
+ nbUniqueNodes = nodeSet.size();
+ if ( nbUniqueNodes == 3 )
+ iTriFace[ nbTri++ ] = iFace;
+ else if ( nbUniqueNodes == 4 )
+ iQuadFace[ nbQuad++ ] = iFace;
+ }
+ if (nbQuad == 2 && nbTri == 4 &&
+ hexa.GetOppFaceIndex( iQuadFace[ 0 ] ) == iQuadFace[ 1 ]) {
+ // 2 opposite quadrangles stuck with a diagonal;
+ // sample groups of merged indices: (0-4)(2-6)
+ // --------------------------------------------> 2 tetrahedrons
+ const int *ind1 = hexa.GetFaceNodesIndices( iQuadFace[ 0 ]); // indices of quad1 nodes
+ const int *ind2 = hexa.GetFaceNodesIndices( iQuadFace[ 1 ]);
+ int i0, i1d, i2, i3d, i0t, i2t; // d-daigonal, t-top
+ if (curNodes[ind1[ 0 ]] == curNodes[ind2[ 0 ]] &&
+ curNodes[ind1[ 2 ]] == curNodes[ind2[ 2 ]]) {
+ // stuck with 0-2 diagonal
+ i0 = ind1[ 3 ];
+ i1d = ind1[ 0 ];
+ i2 = ind1[ 1 ];
+ i3d = ind1[ 2 ];
+ i0t = ind2[ 1 ];
+ i2t = ind2[ 3 ];
+ }
+ else if (curNodes[ind1[ 1 ]] == curNodes[ind2[ 3 ]] &&
+ curNodes[ind1[ 3 ]] == curNodes[ind2[ 1 ]]) {
+ // stuck with 1-3 diagonal
+ i0 = ind1[ 0 ];
+ i1d = ind1[ 1 ];
+ i2 = ind1[ 2 ];
+ i3d = ind1[ 3 ];
+ i0t = ind2[ 0 ];
+ i2t = ind2[ 1 ];
+ }
+ else {
+ ASSERT(0);
+ }
+ // tetrahedron 1
+ uniqueNodes[ 0 ] = curNodes [ i0 ];
+ uniqueNodes[ 1 ] = curNodes [ i1d ];
+ uniqueNodes[ 2 ] = curNodes [ i3d ];
+ uniqueNodes[ 3 ] = curNodes [ i0t ];
+ nbUniqueNodes = 4;
+ // tetrahedron 2
+ SMDS_MeshElement* newElem = aMesh->AddVolume(curNodes[ i1d ],
+ curNodes[ i2 ],
+ curNodes[ i3d ],
+ curNodes[ i2t ]);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ isOk = true;
+ }
+ else if (( nbTri == 2 && nbQuad == 3 ) || // merged (0-4)(1-5)
+ ( nbTri == 4 && nbQuad == 2 )) { // merged (7-4)(1-5)
+ // --------------------------------------------> prism
+ // find 2 opposite triangles
+ nbUniqueNodes = 6;
+ for ( iFace = 0; iFace + 1 < nbTri; iFace++ ) {
+ if ( hexa.GetOppFaceIndex( iTriFace[ iFace ] ) == iTriFace[ iFace + 1 ]) {
+ // find indices of kept and replaced nodes
+ // and fill unique nodes of 2 opposite triangles
+ const int *ind1 = hexa.GetFaceNodesIndices( iTriFace[ iFace ]);
+ const int *ind2 = hexa.GetFaceNodesIndices( iTriFace[ iFace + 1 ]);
+ const SMDS_MeshNode** hexanodes = hexa.GetNodes();
+ // fill unique nodes
+ iUnique = 0;
+ isOk = true;
+ for ( iCur = 0; iCur < 4 && isOk; iCur++ ) {
+ const SMDS_MeshNode* n = curNodes[ind1[ iCur ]];
+ const SMDS_MeshNode* nInit = hexanodes[ind1[ iCur ]];
+ if ( n == nInit ) {
+ // iCur of a linked node of the opposite face (make normals co-directed):
+ int iCurOpp = ( iCur == 1 || iCur == 3 ) ? 4 - iCur : iCur;
+ // check that correspondent corners of triangles are linked
+ if ( !hexa.IsLinked( ind1[ iCur ], ind2[ iCurOpp ] ))
+ isOk = false;
+ else {
+ uniqueNodes[ iUnique ] = n;
+ uniqueNodes[ iUnique + 3 ] = curNodes[ind2[ iCurOpp ]];
+ iUnique++;
+ }
+ }
+ }
+ break;
+ }
+ }
+ }
+ } // if ( nbUniqueNodes == 6 && nbRepl == 4 )
+ else
+ {
+ MESSAGE("MergeNodes() removes hexahedron "<< elem);
+ }
+ break;
+ } // HEXAHEDRON
+
+ default:
+ isOk = false;
+ } // switch ( nbNodes )
+
+ } // if ( nbNodes != nbUniqueNodes ) // some nodes stick
+
+ if ( isOk ) { // the elem remains valid after sticking nodes
+ if (elem->IsPoly() && elem->GetType() == SMDSAbs_Volume)
+ {
+ // Change nodes of polyedre
+ const SMDS_VtkVolume* aPolyedre =
+ dynamic_cast<const SMDS_VtkVolume*>( elem );
+ if (aPolyedre) {
+ int nbFaces = aPolyedre->NbFaces();
+
+ vector<const SMDS_MeshNode *> poly_nodes;
+ vector<int> quantities (nbFaces);
+
+ for (int iface = 1; iface <= nbFaces; iface++) {
+ int inode, nbFaceNodes = aPolyedre->NbFaceNodes(iface);
+ quantities[iface - 1] = nbFaceNodes;
+
+ for (inode = 1; inode <= nbFaceNodes; inode++) {
+ const SMDS_MeshNode* curNode = aPolyedre->GetFaceNode(iface, inode);
+
+ TNodeNodeMap::iterator nnIt = nodeNodeMap.find( curNode );
+ if (nnIt != nodeNodeMap.end()) { // curNode sticks
+ curNode = (*nnIt).second;
+ }
+ poly_nodes.push_back(curNode);
+ }
+ }
+ aMesh->ChangePolyhedronNodes( elem, poly_nodes, quantities );
+ }
+ }
+ else // replace non-polyhedron elements
+ {
+ const SMDSAbs_ElementType etyp = elem->GetType();
+ const int elemId = elem->GetID();
+ const bool isPoly = (elem->GetEntityType() == SMDSEntity_Polygon);
+ uniqueNodes.resize(nbUniqueNodes);
+
+ SMESHDS_SubMesh * sm = aShapeId > 0 ? aMesh->MeshElements(aShapeId) : 0;
+
+ aMesh->RemoveFreeElement(elem, sm, /*fromGroups=*/false);
+ SMDS_MeshElement* newElem = this->AddElement(uniqueNodes, etyp, isPoly, elemId);
+ if ( sm && newElem )
+ sm->AddElement( newElem );
+ if ( elem != newElem )
+ ReplaceElemInGroups( elem, newElem, aMesh );
+ }
+ }
+ else {
+ // Remove invalid regular element or invalid polygon
+ rmElemIds.push_back( elem->GetID() );
+ }
+
+ } // loop on elements
+
+ // Remove bad elements, then equal nodes (order important)
+
+ Remove( rmElemIds, false );
+ Remove( rmNodeIds, true );
+
+}
+
+
+// ========================================================
+// class : SortableElement
+// purpose : allow sorting elements basing on their nodes
+// ========================================================
+class SortableElement : public set <const SMDS_MeshElement*>
+{
+public:
+
+ SortableElement( const SMDS_MeshElement* theElem )
+ {
+ myElem = theElem;
+ SMDS_ElemIteratorPtr nodeIt = theElem->nodesIterator();
+ while ( nodeIt->more() )
+ this->insert( nodeIt->next() );
+ }
+
+ const SMDS_MeshElement* Get() const
+ { return myElem; }
+
+ void Set(const SMDS_MeshElement* e) const
+ { myElem = e; }
+
+
+private:
+ mutable const SMDS_MeshElement* myElem;
+};
+
+//=======================================================================
+//function : FindEqualElements
+//purpose : Return list of group of elements built on the same nodes.
+// Search among theElements or in the whole mesh if theElements is empty
+//=======================================================================
+void SMESH_MeshEditor::FindEqualElements(set<const SMDS_MeshElement*> & theElements,
+ TListOfListOfElementsID & theGroupsOfElementsID)
+{
+ myLastCreatedElems.Clear();
+ myLastCreatedNodes.Clear();
+
+ typedef set<const SMDS_MeshElement*> TElemsSet;
+ typedef map< SortableElement, int > TMapOfNodeSet;
+ typedef list<int> TGroupOfElems;
+
+ TElemsSet elems;
+ if ( theElements.empty() )
+ { // get all elements in the mesh
+ SMDS_ElemIteratorPtr eIt = GetMeshDS()->elementsIterator();
+ while ( eIt->more() )
+ elems.insert( elems.end(), eIt->next());
+ }
+ else
+ elems = theElements;
+
+ vector< TGroupOfElems > arrayOfGroups;
+ TGroupOfElems groupOfElems;
+ TMapOfNodeSet mapOfNodeSet;
+
+ TElemsSet::iterator elemIt = elems.begin();
+ for ( int i = 0, j=0; elemIt != elems.end(); ++elemIt, ++j ) {
+ const SMDS_MeshElement* curElem = *elemIt;
+ SortableElement SE(curElem);
+ int ind = -1;
+ // check uniqueness
+ pair< TMapOfNodeSet::iterator, bool> pp = mapOfNodeSet.insert(make_pair(SE, i));
+ if( !(pp.second) ) {
+ TMapOfNodeSet::iterator& itSE = pp.first;
+ ind = (*itSE).second;
+ arrayOfGroups[ind].push_back(curElem->GetID());
+ }
+ else {
+ groupOfElems.clear();
+ groupOfElems.push_back(curElem->GetID());
+ arrayOfGroups.push_back(groupOfElems);
+ i++;
+ }
+ }
+
+ vector< TGroupOfElems >::iterator groupIt = arrayOfGroups.begin();
+ for ( ; groupIt != arrayOfGroups.end(); ++groupIt ) {
+ groupOfElems = *groupIt;
+ if ( groupOfElems.size() > 1 ) {
+ groupOfElems.sort();
+ theGroupsOfElementsID.push_back(groupOfElems);
+ }
+ }
+}
+
+//=======================================================================
+//function : MergeElements
+//purpose : In each given group, substitute all elements by the first one.
+//=======================================================================
+
+void SMESH_MeshEditor::MergeElements(TListOfListOfElementsID & theGroupsOfElementsID)
+{
+ myLastCreatedElems.Clear();
+ myLastCreatedNodes.Clear();
+
+ typedef list<int> TListOfIDs;
+ TListOfIDs rmElemIds; // IDs of elems to remove
+
+ SMESHDS_Mesh* aMesh = GetMeshDS();
+
+ TListOfListOfElementsID::iterator groupsIt = theGroupsOfElementsID.begin();
+ while ( groupsIt != theGroupsOfElementsID.end() ) {
+ TListOfIDs& aGroupOfElemID = *groupsIt;
+ aGroupOfElemID.sort();
+ int elemIDToKeep = aGroupOfElemID.front();
+ const SMDS_MeshElement* elemToKeep = aMesh->FindElement(elemIDToKeep);
+ aGroupOfElemID.pop_front();
+ TListOfIDs::iterator idIt = aGroupOfElemID.begin();
+ while ( idIt != aGroupOfElemID.end() ) {
+ int elemIDToRemove = *idIt;
+ const SMDS_MeshElement* elemToRemove = aMesh->FindElement(elemIDToRemove);
+ // add the kept element in groups of removed one (PAL15188)
+ AddToSameGroups( elemToKeep, elemToRemove, aMesh );
+ rmElemIds.push_back( elemIDToRemove );
+ ++idIt;
+ }
+ ++groupsIt;
+ }
+
+ Remove( rmElemIds, false );
+}
+
+//=======================================================================
+//function : MergeEqualElements
+//purpose : Remove all but one of elements built on the same nodes.
+//=======================================================================
+
+void SMESH_MeshEditor::MergeEqualElements()
+{
+ set<const SMDS_MeshElement*> aMeshElements; /* empty input -
+ to merge equal elements in the whole mesh */
+ TListOfListOfElementsID aGroupsOfElementsID;
+ FindEqualElements(aMeshElements, aGroupsOfElementsID);
+ MergeElements(aGroupsOfElementsID);
+}
+
+//=======================================================================
+//function : FindFaceInSet
+//purpose : Return a face having linked nodes n1 and n2 and which is
+// - not in avoidSet,
+// - in elemSet provided that !elemSet.empty()
+// i1 and i2 optionally returns indices of n1 and n2
+//=======================================================================
+
+const SMDS_MeshElement*
+SMESH_MeshEditor::FindFaceInSet(const SMDS_MeshNode* n1,
+ const SMDS_MeshNode* n2,
+ const TIDSortedElemSet& elemSet,
+ const TIDSortedElemSet& avoidSet,
+ int* n1ind,
+ int* n2ind)
+
+{
+ int i1, i2;
+ const SMDS_MeshElement* face = 0;
+
+ SMDS_ElemIteratorPtr invElemIt = n1->GetInverseElementIterator(SMDSAbs_Face);
+ //MESSAGE("n1->GetInverseElementIterator(SMDSAbs_Face) " << invElemIt);
+ while ( invElemIt->more() && !face ) // loop on inverse faces of n1
+ {
+ //MESSAGE("in while ( invElemIt->more() && !face )");
+ const SMDS_MeshElement* elem = invElemIt->next();
+ if (avoidSet.count( elem ))
+ continue;
+ if ( !elemSet.empty() && !elemSet.count( elem ))
+ continue;
+ // index of n1
+ i1 = elem->GetNodeIndex( n1 );
+ // find a n2 linked to n1
+ int nbN = elem->IsQuadratic() ? elem->NbNodes()/2 : elem->NbNodes();
+ for ( int di = -1; di < 2 && !face; di += 2 )
+ {
+ i2 = (i1+di+nbN) % nbN;
+ if ( elem->GetNode( i2 ) == n2 )
+ face = elem;
+ }
+ if ( !face && elem->IsQuadratic())
+ {
+ // analysis for quadratic elements using all nodes
+ const SMDS_VtkFace* F =
+ dynamic_cast<const SMDS_VtkFace*>(elem);
+ if (!F) throw SALOME_Exception(LOCALIZED("not an SMDS_VtkFace"));
+ // use special nodes iterator
+ SMDS_ElemIteratorPtr anIter = F->interlacedNodesElemIterator();
+ const SMDS_MeshNode* prevN = cast2Node( anIter->next() );
+ for ( i1 = -1, i2 = 0; anIter->more() && !face; i1++, i2++ )
+ {
+ const SMDS_MeshNode* n = cast2Node( anIter->next() );
+ if ( n1 == prevN && n2 == n )
+ {
+ face = elem;
+ }
+ else if ( n2 == prevN && n1 == n )
+ {
+ face = elem; swap( i1, i2 );
+ }
+ prevN = n;
+ }
+ }
+ }
+ if ( n1ind ) *n1ind = i1;
+ if ( n2ind ) *n2ind = i2;
+ return face;
+}
+
+//=======================================================================
+//function : findAdjacentFace
+//purpose :
+//=======================================================================
+
+static const SMDS_MeshElement* findAdjacentFace(const SMDS_MeshNode* n1,
+ const SMDS_MeshNode* n2,
+ const SMDS_MeshElement* elem)
+{
+ TIDSortedElemSet elemSet, avoidSet;
+ if ( elem )
+ avoidSet.insert ( elem );
+ return SMESH_MeshEditor::FindFaceInSet( n1, n2, elemSet, avoidSet );
+}
+
+//=======================================================================
+//function : FindFreeBorder
+//purpose :
+//=======================================================================
+
+#define ControlFreeBorder SMESH::Controls::FreeEdges::IsFreeEdge
+
+bool SMESH_MeshEditor::FindFreeBorder (const SMDS_MeshNode* theFirstNode,
+ const SMDS_MeshNode* theSecondNode,
+ const SMDS_MeshNode* theLastNode,
+ list< const SMDS_MeshNode* > & theNodes,
+ list< const SMDS_MeshElement* >& theFaces)
+{
+ if ( !theFirstNode || !theSecondNode )
+ return false;
+ // find border face between theFirstNode and theSecondNode
+ const SMDS_MeshElement* curElem = findAdjacentFace( theFirstNode, theSecondNode, 0 );
+ if ( !curElem )
+ return false;
+
+ theFaces.push_back( curElem );
+ theNodes.push_back( theFirstNode );
+ theNodes.push_back( theSecondNode );
+
+ //vector<const SMDS_MeshNode*> nodes;
+ const SMDS_MeshNode *nIgnore = theFirstNode, *nStart = theSecondNode;
+ TIDSortedElemSet foundElems;
+ bool needTheLast = ( theLastNode != 0 );
+
+ while ( nStart != theLastNode ) {
+ if ( nStart == theFirstNode )
+ return !needTheLast;
+
+ // find all free border faces sharing form nStart
+
+ list< const SMDS_MeshElement* > curElemList;
+ list< const SMDS_MeshNode* > nStartList;
+ SMDS_ElemIteratorPtr invElemIt = nStart->GetInverseElementIterator(SMDSAbs_Face);
+ while ( invElemIt->more() ) {
+ const SMDS_MeshElement* e = invElemIt->next();
+ if ( e == curElem || foundElems.insert( e ).second ) {
+ // get nodes
+ int iNode = 0, nbNodes = e->NbNodes();
+ //const SMDS_MeshNode* nodes[nbNodes+1];
+ vector<const SMDS_MeshNode*> nodes(nbNodes+1);
+
+ if(e->IsQuadratic()) {
+ const SMDS_VtkFace* F =
+ dynamic_cast<const SMDS_VtkFace*>(e);
+ if (!F) throw SALOME_Exception(LOCALIZED("not an SMDS_VtkFace"));
+ // use special nodes iterator
+ SMDS_ElemIteratorPtr anIter = F->interlacedNodesElemIterator();
+ while( anIter->more() ) {
+ nodes[ iNode++ ] = cast2Node(anIter->next());
+ }
+ }
+ else {
+ SMDS_ElemIteratorPtr nIt = e->nodesIterator();
+ while ( nIt->more() )
+ nodes[ iNode++ ] = static_cast<const SMDS_MeshNode*>( nIt->next() );
+ }
+ nodes[ iNode ] = nodes[ 0 ];
+ // check 2 links
+ for ( iNode = 0; iNode < nbNodes; iNode++ )
+ if (((nodes[ iNode ] == nStart && nodes[ iNode + 1] != nIgnore ) ||
+ (nodes[ iNode + 1] == nStart && nodes[ iNode ] != nIgnore )) &&
+ ControlFreeBorder( &nodes[ iNode ], e->GetID() ))
+ {
+ nStartList.push_back( nodes[ iNode + ( nodes[ iNode ] == nStart ? 1 : 0 )]);
+ curElemList.push_back( e );
+ }
+ }
+ }
+ // analyse the found
+
+ int nbNewBorders = curElemList.size();
+ if ( nbNewBorders == 0 ) {
+ // no free border furthermore
+ return !needTheLast;
+ }
+ else if ( nbNewBorders == 1 ) {
+ // one more element found
+ nIgnore = nStart;
+ nStart = nStartList.front();
+ curElem = curElemList.front();
+ theFaces.push_back( curElem );
+ theNodes.push_back( nStart );
+ }
+ else {
+ // several continuations found
+ list< const SMDS_MeshElement* >::iterator curElemIt;
+ list< const SMDS_MeshNode* >::iterator nStartIt;
+ // check if one of them reached the last node
+ if ( needTheLast ) {
+ for (curElemIt = curElemList.begin(), nStartIt = nStartList.begin();
+ curElemIt!= curElemList.end();
+ curElemIt++, nStartIt++ )
+ if ( *nStartIt == theLastNode ) {
+ theFaces.push_back( *curElemIt );
+ theNodes.push_back( *nStartIt );
+ return true;
+ }
+ }
+ // find the best free border by the continuations
+ list<const SMDS_MeshNode*> contNodes[ 2 ], *cNL;
+ list<const SMDS_MeshElement*> contFaces[ 2 ], *cFL;
+ for (curElemIt = curElemList.begin(), nStartIt = nStartList.begin();
+ curElemIt!= curElemList.end();
+ curElemIt++, nStartIt++ )
+ {
+ cNL = & contNodes[ contNodes[0].empty() ? 0 : 1 ];
+ cFL = & contFaces[ contFaces[0].empty() ? 0 : 1 ];
+ // find one more free border
+ if ( ! FindFreeBorder( nStart, *nStartIt, theLastNode, *cNL, *cFL )) {
+ cNL->clear();
+ cFL->clear();
+ }
+ else if ( !contNodes[0].empty() && !contNodes[1].empty() ) {
+ // choice: clear a worse one
+ int iLongest = ( contNodes[0].size() < contNodes[1].size() ? 1 : 0 );
+ int iWorse = ( needTheLast ? 1 - iLongest : iLongest );
+ contNodes[ iWorse ].clear();
+ contFaces[ iWorse ].clear();
+ }
+ }
+ if ( contNodes[0].empty() && contNodes[1].empty() )
+ return false;
+
+ // append the best free border
+ cNL = & contNodes[ contNodes[0].empty() ? 1 : 0 ];
+ cFL = & contFaces[ contFaces[0].empty() ? 1 : 0 ];
+ theNodes.pop_back(); // remove nIgnore
+ theNodes.pop_back(); // remove nStart
+ theFaces.pop_back(); // remove curElem
+ list< const SMDS_MeshNode* >::iterator nIt = cNL->begin();
+ list< const SMDS_MeshElement* >::iterator fIt = cFL->begin();
+ for ( ; nIt != cNL->end(); nIt++ ) theNodes.push_back( *nIt );
+ for ( ; fIt != cFL->end(); fIt++ ) theFaces.push_back( *fIt );
+ return true;
+
+ } // several continuations found
+ } // while ( nStart != theLastNode )
+
+ return true;
+}
+
+//=======================================================================
+//function : CheckFreeBorderNodes
+//purpose : Return true if the tree nodes are on a free border
+//=======================================================================
+
+bool SMESH_MeshEditor::CheckFreeBorderNodes(const SMDS_MeshNode* theNode1,
+ const SMDS_MeshNode* theNode2,
+ const SMDS_MeshNode* theNode3)
+{
+ list< const SMDS_MeshNode* > nodes;
+ list< const SMDS_MeshElement* > faces;
+ return FindFreeBorder( theNode1, theNode2, theNode3, nodes, faces);
+}
+
+//=======================================================================
+//function : SewFreeBorder
+//purpose :
+//=======================================================================
+
+SMESH_MeshEditor::Sew_Error
+SMESH_MeshEditor::SewFreeBorder (const SMDS_MeshNode* theBordFirstNode,
+ const SMDS_MeshNode* theBordSecondNode,
+ const SMDS_MeshNode* theBordLastNode,
+ const SMDS_MeshNode* theSideFirstNode,
+ const SMDS_MeshNode* theSideSecondNode,
+ const SMDS_MeshNode* theSideThirdNode,
+ const bool theSideIsFreeBorder,
+ const bool toCreatePolygons,
+ const bool toCreatePolyedrs)
+{
+ myLastCreatedElems.Clear();
+ myLastCreatedNodes.Clear();
+
+ MESSAGE("::SewFreeBorder()");
+ Sew_Error aResult = SEW_OK;
+
+ // ====================================
+ // find side nodes and elements
+ // ====================================
+
+ list< const SMDS_MeshNode* > nSide[ 2 ];
+ list< const SMDS_MeshElement* > eSide[ 2 ];
+ list< const SMDS_MeshNode* >::iterator nIt[ 2 ];
+ list< const SMDS_MeshElement* >::iterator eIt[ 2 ];
+
+ // Free border 1
+ // --------------
+ if (!FindFreeBorder(theBordFirstNode,theBordSecondNode,theBordLastNode,
+ nSide[0], eSide[0])) {
+ MESSAGE(" Free Border 1 not found " );
+ aResult = SEW_BORDER1_NOT_FOUND;
+ }
+ if (theSideIsFreeBorder) {
+ // Free border 2
+ // --------------
+ if (!FindFreeBorder(theSideFirstNode, theSideSecondNode, theSideThirdNode,
+ nSide[1], eSide[1])) {
+ MESSAGE(" Free Border 2 not found " );
+ aResult = ( aResult != SEW_OK ? SEW_BOTH_BORDERS_NOT_FOUND : SEW_BORDER2_NOT_FOUND );
+ }
+ }
+ if ( aResult != SEW_OK )
+ return aResult;
+
+ if (!theSideIsFreeBorder) {
+ // Side 2
+ // --------------
+
+ // -------------------------------------------------------------------------
+ // Algo:
+ // 1. If nodes to merge are not coincident, move nodes of the free border
+ // from the coord sys defined by the direction from the first to last
+ // nodes of the border to the correspondent sys of the side 2
+ // 2. On the side 2, find the links most co-directed with the correspondent
+ // links of the free border
+ // -------------------------------------------------------------------------
+
+ // 1. Since sewing may break if there are volumes to split on the side 2,
+ // we wont move nodes but just compute new coordinates for them
+ typedef map<const SMDS_MeshNode*, gp_XYZ> TNodeXYZMap;
+ TNodeXYZMap nBordXYZ;
+ list< const SMDS_MeshNode* >& bordNodes = nSide[ 0 ];
+ list< const SMDS_MeshNode* >::iterator nBordIt;
+
+ gp_XYZ Pb1( theBordFirstNode->X(), theBordFirstNode->Y(), theBordFirstNode->Z() );
+ gp_XYZ Pb2( theBordLastNode->X(), theBordLastNode->Y(), theBordLastNode->Z() );
+ gp_XYZ Ps1( theSideFirstNode->X(), theSideFirstNode->Y(), theSideFirstNode->Z() );
+ gp_XYZ Ps2( theSideSecondNode->X(), theSideSecondNode->Y(), theSideSecondNode->Z() );
+ double tol2 = 1.e-8;
+ gp_Vec Vbs1( Pb1 - Ps1 ),Vbs2( Pb2 - Ps2 );
+ if ( Vbs1.SquareMagnitude() > tol2 || Vbs2.SquareMagnitude() > tol2 ) {
+ // Need node movement.
+
+ // find X and Z axes to create trsf
+ gp_Vec Zb( Pb1 - Pb2 ), Zs( Ps1 - Ps2 );
+ gp_Vec X = Zs ^ Zb;
+ if ( X.SquareMagnitude() <= gp::Resolution() * gp::Resolution() )
+ // Zb || Zs
+ X = gp_Ax2( gp::Origin(), Zb ).XDirection();
+
+ // coord systems
+ gp_Ax3 toBordAx( Pb1, Zb, X );
+ gp_Ax3 fromSideAx( Ps1, Zs, X );
+ gp_Ax3 toGlobalAx( gp::Origin(), gp::DZ(), gp::DX() );
+ // set trsf
+ gp_Trsf toBordSys, fromSide2Sys;
+ toBordSys.SetTransformation( toBordAx );
+ fromSide2Sys.SetTransformation( fromSideAx, toGlobalAx );
+ fromSide2Sys.SetScaleFactor( Zs.Magnitude() / Zb.Magnitude() );
+
+ // move
+ for ( nBordIt = bordNodes.begin(); nBordIt != bordNodes.end(); nBordIt++ ) {
+ const SMDS_MeshNode* n = *nBordIt;
+ gp_XYZ xyz( n->X(),n->Y(),n->Z() );
+ toBordSys.Transforms( xyz );
+ fromSide2Sys.Transforms( xyz );
+ nBordXYZ.insert( TNodeXYZMap::value_type( n, xyz ));
+ }
+ }
+ else {
+ // just insert nodes XYZ in the nBordXYZ map
+ for ( nBordIt = bordNodes.begin(); nBordIt != bordNodes.end(); nBordIt++ ) {
+ const SMDS_MeshNode* n = *nBordIt;
+ nBordXYZ.insert( TNodeXYZMap::value_type( n, gp_XYZ( n->X(),n->Y(),n->Z() )));
+ }
+ }
+
+ // 2. On the side 2, find the links most co-directed with the correspondent
+ // links of the free border
+
+ list< const SMDS_MeshElement* >& sideElems = eSide[ 1 ];
+ list< const SMDS_MeshNode* >& sideNodes = nSide[ 1 ];
+ sideNodes.push_back( theSideFirstNode );
+
+ bool hasVolumes = false;
+ LinkID_Gen aLinkID_Gen( GetMeshDS() );
+ set<long> foundSideLinkIDs, checkedLinkIDs;
+ SMDS_VolumeTool volume;
+ //const SMDS_MeshNode* faceNodes[ 4 ];
+
+ const SMDS_MeshNode* sideNode;
+ const SMDS_MeshElement* sideElem;
+ const SMDS_MeshNode* prevSideNode = theSideFirstNode;
+ const SMDS_MeshNode* prevBordNode = theBordFirstNode;
+ nBordIt = bordNodes.begin();
+ nBordIt++;
+ // border node position and border link direction to compare with
+ gp_XYZ bordPos = nBordXYZ[ *nBordIt ];
+ gp_XYZ bordDir = bordPos - nBordXYZ[ prevBordNode ];
+ // choose next side node by link direction or by closeness to
+ // the current border node:
+ bool searchByDir = ( *nBordIt != theBordLastNode );
+ do {
+ // find the next node on the Side 2
+ sideNode = 0;
+ double maxDot = -DBL_MAX, minDist = DBL_MAX;
+ long linkID;
+ checkedLinkIDs.clear();
+ gp_XYZ prevXYZ( prevSideNode->X(), prevSideNode->Y(), prevSideNode->Z() );
+
+ // loop on inverse elements of current node (prevSideNode) on the Side 2
+ SMDS_ElemIteratorPtr invElemIt = prevSideNode->GetInverseElementIterator();
+ while ( invElemIt->more() )
+ {
+ const SMDS_MeshElement* elem = invElemIt->next();
+ // prepare data for a loop on links coming to prevSideNode, of a face or a volume
+ int iPrevNode, iNode = 0, nbNodes = elem->NbNodes();
+ vector< const SMDS_MeshNode* > faceNodes( nbNodes, (const SMDS_MeshNode*)0 );
+ bool isVolume = volume.Set( elem );
+ const SMDS_MeshNode** nodes = isVolume ? volume.GetNodes() : & faceNodes[0];
+ if ( isVolume ) // --volume
+ hasVolumes = true;
+ else if ( elem->GetType()==SMDSAbs_Face ) { // --face
+ // retrieve all face nodes and find iPrevNode - an index of the prevSideNode
+ if(elem->IsQuadratic()) {
+ const SMDS_VtkFace* F =
+ dynamic_cast<const SMDS_VtkFace*>(elem);
+ if (!F) throw SALOME_Exception(LOCALIZED("not an SMDS_VtkFace"));
+ // use special nodes iterator
+ SMDS_ElemIteratorPtr anIter = F->interlacedNodesElemIterator();
+ while( anIter->more() ) {
+ nodes[ iNode ] = cast2Node(anIter->next());
+ if ( nodes[ iNode++ ] == prevSideNode )
+ iPrevNode = iNode - 1;
+ }
+ }
+ else {
+ SMDS_ElemIteratorPtr nIt = elem->nodesIterator();
+ while ( nIt->more() ) {
+ nodes[ iNode ] = cast2Node( nIt->next() );
+ if ( nodes[ iNode++ ] == prevSideNode )
+ iPrevNode = iNode - 1;
+ }
+ }
+ // there are 2 links to check
+ nbNodes = 2;
+ }
+ else // --edge
+ continue;
+ // loop on links, to be precise, on the second node of links
+ for ( iNode = 0; iNode < nbNodes; iNode++ ) {
+ const SMDS_MeshNode* n = nodes[ iNode ];
+ if ( isVolume ) {
+ if ( !volume.IsLinked( n, prevSideNode ))
+ continue;
}
- }
- else if ( nbUniqueNodes == 6 && nbRepl == 4 ) {
- ////////////////// HEXAHEDRON ---> 2 tetrahedrons or 1 prism
- // find indices of quad and tri faces
- int iQuadFace[ 6 ], iTriFace[ 6 ], nbQuad = 0, nbTri = 0, iFace;
- for ( iFace = 0; iFace < 6; iFace++ ) {
- const int *ind = hexa.GetFaceNodesIndices( iFace ); // indices of face nodes
- nodeSet.clear();
- for ( iCur = 0; iCur < 4; iCur++ )
- nodeSet.insert( curNodes[ind[ iCur ]] );
- nbUniqueNodes = nodeSet.size();
- if ( nbUniqueNodes == 3 )
- iTriFace[ nbTri++ ] = iFace;
- else if ( nbUniqueNodes == 4 )
- iQuadFace[ nbQuad++ ] = iFace;
+ else {
+ if ( iNode ) // a node before prevSideNode
+ n = nodes[ iPrevNode == 0 ? elem->NbNodes() - 1 : iPrevNode - 1 ];
+ else // a node after prevSideNode
+ n = nodes[ iPrevNode + 1 == elem->NbNodes() ? 0 : iPrevNode + 1 ];
}
- if (nbQuad == 2 && nbTri == 4 &&
- hexa.GetOppFaceIndex( iQuadFace[ 0 ] ) == iQuadFace[ 1 ]) {
- // 2 opposite quadrangles stuck with a diagonal;
- // sample groups of merged indices: (0-4)(2-6)
- // --------------------------------------------> 2 tetrahedrons
- const int *ind1 = hexa.GetFaceNodesIndices( iQuadFace[ 0 ]); // indices of quad1 nodes
- const int *ind2 = hexa.GetFaceNodesIndices( iQuadFace[ 1 ]);
- int i0, i1d, i2, i3d, i0t, i2t; // d-daigonal, t-top
- if (curNodes[ind1[ 0 ]] == curNodes[ind2[ 0 ]] &&
- curNodes[ind1[ 2 ]] == curNodes[ind2[ 2 ]]) {
- // stuck with 0-2 diagonal
- i0 = ind1[ 3 ];
- i1d = ind1[ 0 ];
- i2 = ind1[ 1 ];
- i3d = ind1[ 2 ];
- i0t = ind2[ 1 ];
- i2t = ind2[ 3 ];
+ // check if this link was already used
+ long iLink = aLinkID_Gen.GetLinkID( prevSideNode, n );
+ bool isJustChecked = !checkedLinkIDs.insert( iLink ).second;
+ if (!isJustChecked &&
+ foundSideLinkIDs.find( iLink ) == foundSideLinkIDs.end() )
+ {
+ // test a link geometrically
+ gp_XYZ nextXYZ ( n->X(), n->Y(), n->Z() );
+ bool linkIsBetter = false;
+ double dot = 0.0, dist = 0.0;
+ if ( searchByDir ) { // choose most co-directed link
+ dot = bordDir * ( nextXYZ - prevXYZ ).Normalized();
+ linkIsBetter = ( dot > maxDot );
}
- else if (curNodes[ind1[ 1 ]] == curNodes[ind2[ 3 ]] &&
- curNodes[ind1[ 3 ]] == curNodes[ind2[ 1 ]]) {
- // stuck with 1-3 diagonal
- i0 = ind1[ 0 ];
- i1d = ind1[ 1 ];
- i2 = ind1[ 2 ];
- i3d = ind1[ 3 ];
- i0t = ind2[ 0 ];
- i2t = ind2[ 1 ];
+ else { // choose link with the node closest to bordPos
+ dist = ( nextXYZ - bordPos ).SquareModulus();
+ linkIsBetter = ( dist < minDist );
}
- else {
- ASSERT(0);
+ if ( linkIsBetter ) {
+ maxDot = dot;
+ minDist = dist;
+ linkID = iLink;
+ sideNode = n;
+ sideElem = elem;
}
- // tetrahedron 1
- uniqueNodes[ 0 ] = curNodes [ i0 ];
- uniqueNodes[ 1 ] = curNodes [ i1d ];
- uniqueNodes[ 2 ] = curNodes [ i3d ];
- uniqueNodes[ 3 ] = curNodes [ i0t ];
- nbUniqueNodes = 4;
- // tetrahedron 2
- SMDS_MeshElement* newElem = aMesh->AddVolume(curNodes[ i1d ],
- curNodes[ i2 ],
- curNodes[ i3d ],
- curNodes[ i2t ]);
- myLastCreatedElems.Append(newElem);
- if ( aShapeId )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
- isOk = true;
}
- else if (( nbTri == 2 && nbQuad == 3 ) || // merged (0-4)(1-5)
- ( nbTri == 4 && nbQuad == 2 )) { // merged (7-4)(1-5)
- // --------------------------------------------> prism
- // find 2 opposite triangles
- nbUniqueNodes = 6;
- for ( iFace = 0; iFace + 1 < nbTri; iFace++ ) {
- if ( hexa.GetOppFaceIndex( iTriFace[ iFace ] ) == iTriFace[ iFace + 1 ]) {
- // find indices of kept and replaced nodes
- // and fill unique nodes of 2 opposite triangles
- const int *ind1 = hexa.GetFaceNodesIndices( iTriFace[ iFace ]);
- const int *ind2 = hexa.GetFaceNodesIndices( iTriFace[ iFace + 1 ]);
- const SMDS_MeshNode** hexanodes = hexa.GetNodes();
- // fill unique nodes
- iUnique = 0;
- isOk = true;
- for ( iCur = 0; iCur < 4 && isOk; iCur++ ) {
- const SMDS_MeshNode* n = curNodes[ind1[ iCur ]];
- const SMDS_MeshNode* nInit = hexanodes[ind1[ iCur ]];
- if ( n == nInit ) {
- // iCur of a linked node of the opposite face (make normals co-directed):
- int iCurOpp = ( iCur == 1 || iCur == 3 ) ? 4 - iCur : iCur;
- // check that correspondent corners of triangles are linked
- if ( !hexa.IsLinked( ind1[ iCur ], ind2[ iCurOpp ] ))
- isOk = false;
- else {
- uniqueNodes[ iUnique ] = n;
- uniqueNodes[ iUnique + 3 ] = curNodes[ind2[ iCurOpp ]];
- iUnique++;
- }
- }
- }
- break;
- }
- }
+ }
+ } // loop on inverse elements of prevSideNode
+
+ if ( !sideNode ) {
+ MESSAGE(" Cant find path by links of the Side 2 ");
+ return SEW_BAD_SIDE_NODES;
+ }
+ sideNodes.push_back( sideNode );
+ sideElems.push_back( sideElem );
+ foundSideLinkIDs.insert ( linkID );
+ prevSideNode = sideNode;
+
+ if ( *nBordIt == theBordLastNode )
+ searchByDir = false;
+ else {
+ // find the next border link to compare with
+ gp_XYZ sidePos( sideNode->X(), sideNode->Y(), sideNode->Z() );
+ searchByDir = ( bordDir * ( sidePos - bordPos ) <= 0 );
+ // move to next border node if sideNode is before forward border node (bordPos)
+ while ( *nBordIt != theBordLastNode && !searchByDir ) {
+ prevBordNode = *nBordIt;
+ nBordIt++;
+ bordPos = nBordXYZ[ *nBordIt ];
+ bordDir = bordPos - nBordXYZ[ prevBordNode ];
+ searchByDir = ( bordDir * ( sidePos - bordPos ) <= 0 );
+ }
+ }
+ }
+ while ( sideNode != theSideSecondNode );
+
+ if ( hasVolumes && sideNodes.size () != bordNodes.size() && !toCreatePolyedrs) {
+ MESSAGE("VOLUME SPLITTING IS FORBIDDEN");
+ return SEW_VOLUMES_TO_SPLIT; // volume splitting is forbidden
+ }
+ } // end nodes search on the side 2
+
+ // ============================
+ // sew the border to the side 2
+ // ============================
+
+ int nbNodes[] = { nSide[0].size(), nSide[1].size() };
+ int maxNbNodes = Max( nbNodes[0], nbNodes[1] );
+
+ TListOfListOfNodes nodeGroupsToMerge;
+ if ( nbNodes[0] == nbNodes[1] ||
+ ( theSideIsFreeBorder && !theSideThirdNode)) {
+
+ // all nodes are to be merged
+
+ for (nIt[0] = nSide[0].begin(), nIt[1] = nSide[1].begin();
+ nIt[0] != nSide[0].end() && nIt[1] != nSide[1].end();
+ nIt[0]++, nIt[1]++ )
+ {
+ nodeGroupsToMerge.push_back( list<const SMDS_MeshNode*>() );
+ nodeGroupsToMerge.back().push_back( *nIt[1] ); // to keep
+ nodeGroupsToMerge.back().push_back( *nIt[0] ); // to remove
+ }
+ }
+ else {
+
+ // insert new nodes into the border and the side to get equal nb of segments
+
+ // get normalized parameters of nodes on the borders
+ //double param[ 2 ][ maxNbNodes ];
+ double* param[ 2 ];
+ param[0] = new double [ maxNbNodes ];
+ param[1] = new double [ maxNbNodes ];
+ int iNode, iBord;
+ for ( iBord = 0; iBord < 2; iBord++ ) { // loop on 2 borders
+ list< const SMDS_MeshNode* >& nodes = nSide[ iBord ];
+ list< const SMDS_MeshNode* >::iterator nIt = nodes.begin();
+ const SMDS_MeshNode* nPrev = *nIt;
+ double bordLength = 0;
+ for ( iNode = 0; nIt != nodes.end(); nIt++, iNode++ ) { // loop on border nodes
+ const SMDS_MeshNode* nCur = *nIt;
+ gp_XYZ segment (nCur->X() - nPrev->X(),
+ nCur->Y() - nPrev->Y(),
+ nCur->Z() - nPrev->Z());
+ double segmentLen = segment.Modulus();
+ bordLength += segmentLen;
+ param[ iBord ][ iNode ] = bordLength;
+ nPrev = nCur;
+ }
+ // normalize within [0,1]
+ for ( iNode = 0; iNode < nbNodes[ iBord ]; iNode++ ) {
+ param[ iBord ][ iNode ] /= bordLength;
+ }
+ }
+
+ // loop on border segments
+ const SMDS_MeshNode *nPrev[ 2 ] = { 0, 0 };
+ int i[ 2 ] = { 0, 0 };
+ nIt[0] = nSide[0].begin(); eIt[0] = eSide[0].begin();
+ nIt[1] = nSide[1].begin(); eIt[1] = eSide[1].begin();
+
+ TElemOfNodeListMap insertMap;
+ TElemOfNodeListMap::iterator insertMapIt;
+ // insertMap is
+ // key: elem to insert nodes into
+ // value: 2 nodes to insert between + nodes to be inserted
+ do {
+ bool next[ 2 ] = { false, false };
+
+ // find min adjacent segment length after sewing
+ double nextParam = 10., prevParam = 0;
+ for ( iBord = 0; iBord < 2; iBord++ ) { // loop on 2 borders
+ if ( i[ iBord ] + 1 < nbNodes[ iBord ])
+ nextParam = Min( nextParam, param[iBord][ i[iBord] + 1 ]);
+ if ( i[ iBord ] > 0 )
+ prevParam = Max( prevParam, param[iBord][ i[iBord] - 1 ]);
+ }
+ double minParam = Min( param[ 0 ][ i[0] ], param[ 1 ][ i[1] ]);
+ double maxParam = Max( param[ 0 ][ i[0] ], param[ 1 ][ i[1] ]);
+ double minSegLen = Min( nextParam - minParam, maxParam - prevParam );
+
+ // choose to insert or to merge nodes
+ double du = param[ 1 ][ i[1] ] - param[ 0 ][ i[0] ];
+ if ( Abs( du ) <= minSegLen * 0.2 ) {
+ // merge
+ // ------
+ nodeGroupsToMerge.push_back( list<const SMDS_MeshNode*>() );
+ const SMDS_MeshNode* n0 = *nIt[0];
+ const SMDS_MeshNode* n1 = *nIt[1];
+ nodeGroupsToMerge.back().push_back( n1 );
+ nodeGroupsToMerge.back().push_back( n0 );
+ // position of node of the border changes due to merge
+ param[ 0 ][ i[0] ] += du;
+ // move n1 for the sake of elem shape evaluation during insertion.
+ // n1 will be removed by MergeNodes() anyway
+ const_cast<SMDS_MeshNode*>( n0 )->setXYZ( n1->X(), n1->Y(), n1->Z() );
+ next[0] = next[1] = true;
+ }
+ else {
+ // insert
+ // ------
+ int intoBord = ( du < 0 ) ? 0 : 1;
+ const SMDS_MeshElement* elem = *eIt[ intoBord ];
+ const SMDS_MeshNode* n1 = nPrev[ intoBord ];
+ const SMDS_MeshNode* n2 = *nIt[ intoBord ];
+ const SMDS_MeshNode* nIns = *nIt[ 1 - intoBord ];
+ if ( intoBord == 1 ) {
+ // move node of the border to be on a link of elem of the side
+ gp_XYZ p1 (n1->X(), n1->Y(), n1->Z());
+ gp_XYZ p2 (n2->X(), n2->Y(), n2->Z());
+ double ratio = du / ( param[ 1 ][ i[1] ] - param[ 1 ][ i[1]-1 ]);
+ gp_XYZ p = p2 * ( 1 - ratio ) + p1 * ratio;
+ GetMeshDS()->MoveNode( nIns, p.X(), p.Y(), p.Z() );
+ }
+ insertMapIt = insertMap.find( elem );
+ bool notFound = ( insertMapIt == insertMap.end() );
+ bool otherLink = ( !notFound && (*insertMapIt).second.front() != n1 );
+ if ( otherLink ) {
+ // insert into another link of the same element:
+ // 1. perform insertion into the other link of the elem
+ list<const SMDS_MeshNode*> & nodeList = (*insertMapIt).second;
+ const SMDS_MeshNode* n12 = nodeList.front(); nodeList.pop_front();
+ const SMDS_MeshNode* n22 = nodeList.front(); nodeList.pop_front();
+ InsertNodesIntoLink( elem, n12, n22, nodeList, toCreatePolygons );
+ // 2. perform insertion into the link of adjacent faces
+ while (true) {
+ const SMDS_MeshElement* adjElem = findAdjacentFace( n12, n22, elem );
+ if ( adjElem )
+ InsertNodesIntoLink( adjElem, n12, n22, nodeList, toCreatePolygons );
+ else
+ break;
}
- } // if ( nbUniqueNodes == 6 && nbRepl == 4 )
- break;
- } // HEXAHEDRON
-
- default:
- isOk = false;
- } // switch ( nbNodes )
-
- } // if ( nbNodes != nbUniqueNodes ) // some nodes stick
+ if (toCreatePolyedrs) {
+ // perform insertion into the links of adjacent volumes
+ UpdateVolumes(n12, n22, nodeList);
+ }
+ // 3. find an element appeared on n1 and n2 after the insertion
+ insertMap.erase( elem );
+ elem = findAdjacentFace( n1, n2, 0 );
+ }
+ if ( notFound || otherLink ) {
+ // add element and nodes of the side into the insertMap
+ insertMapIt = insertMap.insert
+ ( TElemOfNodeListMap::value_type( elem, list<const SMDS_MeshNode*>() )).first;
+ (*insertMapIt).second.push_back( n1 );
+ (*insertMapIt).second.push_back( n2 );
+ }
+ // add node to be inserted into elem
+ (*insertMapIt).second.push_back( nIns );
+ next[ 1 - intoBord ] = true;
+ }
- if ( isOk ) {
- if (elem->IsPoly() && elem->GetType() == SMDSAbs_Volume) {
- // Change nodes of polyedre
- const SMDS_PolyhedralVolumeOfNodes* aPolyedre =
- static_cast<const SMDS_PolyhedralVolumeOfNodes*>( elem );
- if (aPolyedre) {
- int nbFaces = aPolyedre->NbFaces();
+ // go to the next segment
+ for ( iBord = 0; iBord < 2; iBord++ ) { // loop on 2 borders
+ if ( next[ iBord ] ) {
+ if ( i[ iBord ] != 0 && eIt[ iBord ] != eSide[ iBord ].end())
+ eIt[ iBord ]++;
+ nPrev[ iBord ] = *nIt[ iBord ];
+ nIt[ iBord ]++; i[ iBord ]++;
+ }
+ }
+ }
+ while ( nIt[0] != nSide[0].end() && nIt[1] != nSide[1].end());
- vector<const SMDS_MeshNode *> poly_nodes;
- vector<int> quantities (nbFaces);
+ // perform insertion of nodes into elements
- for (int iface = 1; iface <= nbFaces; iface++) {
- int inode, nbFaceNodes = aPolyedre->NbFaceNodes(iface);
- quantities[iface - 1] = nbFaceNodes;
+ for (insertMapIt = insertMap.begin();
+ insertMapIt != insertMap.end();
+ insertMapIt++ )
+ {
+ const SMDS_MeshElement* elem = (*insertMapIt).first;
+ list<const SMDS_MeshNode*> & nodeList = (*insertMapIt).second;
+ const SMDS_MeshNode* n1 = nodeList.front(); nodeList.pop_front();
+ const SMDS_MeshNode* n2 = nodeList.front(); nodeList.pop_front();
- for (inode = 1; inode <= nbFaceNodes; inode++) {
- const SMDS_MeshNode* curNode = aPolyedre->GetFaceNode(iface, inode);
+ InsertNodesIntoLink( elem, n1, n2, nodeList, toCreatePolygons );
- TNodeNodeMap::iterator nnIt = nodeNodeMap.find( curNode );
- if (nnIt != nodeNodeMap.end()) { // curNode sticks
- curNode = (*nnIt).second;
- }
- poly_nodes.push_back(curNode);
- }
- }
- aMesh->ChangePolyhedronNodes( elem, poly_nodes, quantities );
+ if ( !theSideIsFreeBorder ) {
+ // look for and insert nodes into the faces adjacent to elem
+ while (true) {
+ const SMDS_MeshElement* adjElem = findAdjacentFace( n1, n2, elem );
+ if ( adjElem )
+ InsertNodesIntoLink( adjElem, n1, n2, nodeList, toCreatePolygons );
+ else
+ break;
}
}
- else {
- // Change regular element or polygon
- aMesh->ChangeElementNodes( elem, & uniqueNodes[0], nbUniqueNodes );
+ if (toCreatePolyedrs) {
+ // perform insertion into the links of adjacent volumes
+ UpdateVolumes(n1, n2, nodeList);
}
}
- else {
- // Remove invalid regular element or invalid polygon
- rmElemIds.push_back( elem->GetID() );
- }
-
- } // loop on elements
- // Remove equal nodes and bad elements
+ delete param[0];
+ delete param[1];
+ } // end: insert new nodes
- Remove( rmNodeIds, true );
- Remove( rmElemIds, false );
+ MergeNodes ( nodeGroupsToMerge );
+ return aResult;
}
+//=======================================================================
+//function : InsertNodesIntoLink
+//purpose : insert theNodesToInsert into theFace between theBetweenNode1
+// and theBetweenNode2 and split theElement
+//=======================================================================
-// ========================================================
-// class : SortableElement
-// purpose : allow sorting elements basing on their nodes
-// ========================================================
-class SortableElement : public set <const SMDS_MeshElement*>
+void SMESH_MeshEditor::InsertNodesIntoLink(const SMDS_MeshElement* theFace,
+ const SMDS_MeshNode* theBetweenNode1,
+ const SMDS_MeshNode* theBetweenNode2,
+ list<const SMDS_MeshNode*>& theNodesToInsert,
+ const bool toCreatePoly)
{
- public:
-
- SortableElement( const SMDS_MeshElement* theElem )
- {
- myElem = theElem;
- SMDS_ElemIteratorPtr nodeIt = theElem->nodesIterator();
- while ( nodeIt->more() )
- this->insert( nodeIt->next() );
- }
+ if ( theFace->GetType() != SMDSAbs_Face ) return;
- const SMDS_MeshElement* Get() const
- { return myElem; }
+ // find indices of 2 link nodes and of the rest nodes
+ int iNode = 0, il1, il2, i3, i4;
+ il1 = il2 = i3 = i4 = -1;
+ //const SMDS_MeshNode* nodes[ theFace->NbNodes() ];
+ vector<const SMDS_MeshNode*> nodes( theFace->NbNodes() );
- void Set(const SMDS_MeshElement* e) const
- { myElem = e; }
+ if(theFace->IsQuadratic()) {
+ const SMDS_VtkFace* F =
+ dynamic_cast<const SMDS_VtkFace*>(theFace);
+ if (!F) throw SALOME_Exception(LOCALIZED("not an SMDS_VtkFace"));
+ // use special nodes iterator
+ SMDS_ElemIteratorPtr anIter = F->interlacedNodesElemIterator();
+ while( anIter->more() ) {
+ const SMDS_MeshNode* n = cast2Node(anIter->next());
+ if ( n == theBetweenNode1 )
+ il1 = iNode;
+ else if ( n == theBetweenNode2 )
+ il2 = iNode;
+ else if ( i3 < 0 )
+ i3 = iNode;
+ else
+ i4 = iNode;
+ nodes[ iNode++ ] = n;
+ }
+ }
+ else {
+ SMDS_ElemIteratorPtr nodeIt = theFace->nodesIterator();
+ while ( nodeIt->more() ) {
+ const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
+ if ( n == theBetweenNode1 )
+ il1 = iNode;
+ else if ( n == theBetweenNode2 )
+ il2 = iNode;
+ else if ( i3 < 0 )
+ i3 = iNode;
+ else
+ i4 = iNode;
+ nodes[ iNode++ ] = n;
+ }
+ }
+ if ( il1 < 0 || il2 < 0 || i3 < 0 )
+ return ;
+ // arrange link nodes to go one after another regarding the face orientation
+ bool reverse = ( Abs( il2 - il1 ) == 1 ? il2 < il1 : il1 < il2 );
+ list<const SMDS_MeshNode *> aNodesToInsert = theNodesToInsert;
+ if ( reverse ) {
+ iNode = il1;
+ il1 = il2;
+ il2 = iNode;
+ aNodesToInsert.reverse();
+ }
+ // check that not link nodes of a quadrangles are in good order
+ int nbFaceNodes = theFace->NbNodes();
+ if ( nbFaceNodes == 4 && i4 - i3 != 1 ) {
+ iNode = i3;
+ i3 = i4;
+ i4 = iNode;
+ }
- private:
- mutable const SMDS_MeshElement* myElem;
-};
+ if (toCreatePoly || theFace->IsPoly()) {
-//=======================================================================
-//function : FindEqualElements
-//purpose : Return list of group of elements built on the same nodes.
-// Search among theElements or in the whole mesh if theElements is empty
-//=======================================================================
-void SMESH_MeshEditor::FindEqualElements(set<const SMDS_MeshElement*> & theElements,
- TListOfListOfElementsID & theGroupsOfElementsID)
-{
- myLastCreatedElems.Clear();
- myLastCreatedNodes.Clear();
+ iNode = 0;
+ vector<const SMDS_MeshNode *> poly_nodes (nbFaceNodes + aNodesToInsert.size());
- typedef set<const SMDS_MeshElement*> TElemsSet;
- typedef map< SortableElement, int > TMapOfNodeSet;
- typedef list<int> TGroupOfElems;
+ // add nodes of face up to first node of link
+ bool isFLN = false;
- TElemsSet elems;
- if ( theElements.empty() )
- { // get all elements in the mesh
- SMDS_ElemIteratorPtr eIt = GetMeshDS()->elementsIterator();
- while ( eIt->more() )
- elems.insert( elems.end(), eIt->next());
- }
- else
- elems = theElements;
+ if(theFace->IsQuadratic()) {
+ const SMDS_VtkFace* F =
+ dynamic_cast<const SMDS_VtkFace*>(theFace);
+ if (!F) throw SALOME_Exception(LOCALIZED("not an SMDS_VtkFace"));
+ // use special nodes iterator
+ SMDS_ElemIteratorPtr anIter = F->interlacedNodesElemIterator();
+ while( anIter->more() && !isFLN ) {
+ const SMDS_MeshNode* n = cast2Node(anIter->next());
+ poly_nodes[iNode++] = n;
+ if (n == nodes[il1]) {
+ isFLN = true;
+ }
+ }
+ // add nodes to insert
+ list<const SMDS_MeshNode*>::iterator nIt = aNodesToInsert.begin();
+ for (; nIt != aNodesToInsert.end(); nIt++) {
+ poly_nodes[iNode++] = *nIt;
+ }
+ // add nodes of face starting from last node of link
+ while ( anIter->more() ) {
+ poly_nodes[iNode++] = cast2Node(anIter->next());
+ }
+ }
+ else {
+ SMDS_ElemIteratorPtr nodeIt = theFace->nodesIterator();
+ while ( nodeIt->more() && !isFLN ) {
+ const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
+ poly_nodes[iNode++] = n;
+ if (n == nodes[il1]) {
+ isFLN = true;
+ }
+ }
+ // add nodes to insert
+ list<const SMDS_MeshNode*>::iterator nIt = aNodesToInsert.begin();
+ for (; nIt != aNodesToInsert.end(); nIt++) {
+ poly_nodes[iNode++] = *nIt;
+ }
+ // add nodes of face starting from last node of link
+ while ( nodeIt->more() ) {
+ const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
+ poly_nodes[iNode++] = n;
+ }
+ }
- vector< TGroupOfElems > arrayOfGroups;
- TGroupOfElems groupOfElems;
- TMapOfNodeSet mapOfNodeSet;
+ // edit or replace the face
+ SMESHDS_Mesh *aMesh = GetMeshDS();
- TElemsSet::iterator elemIt = elems.begin();
- for ( int i = 0, j=0; elemIt != elems.end(); ++elemIt, ++j ) {
- const SMDS_MeshElement* curElem = *elemIt;
- SortableElement SE(curElem);
- int ind = -1;
- // check uniqueness
- pair< TMapOfNodeSet::iterator, bool> pp = mapOfNodeSet.insert(make_pair(SE, i));
- if( !(pp.second) ) {
- TMapOfNodeSet::iterator& itSE = pp.first;
- ind = (*itSE).second;
- arrayOfGroups[ind].push_back(curElem->GetID());
+ if (theFace->IsPoly()) {
+ aMesh->ChangePolygonNodes(theFace, poly_nodes);
}
else {
- groupOfElems.clear();
- groupOfElems.push_back(curElem->GetID());
- arrayOfGroups.push_back(groupOfElems);
- i++;
- }
- }
+ int aShapeId = FindShape( theFace );
- vector< TGroupOfElems >::iterator groupIt = arrayOfGroups.begin();
- for ( ; groupIt != arrayOfGroups.end(); ++groupIt ) {
- groupOfElems = *groupIt;
- if ( groupOfElems.size() > 1 ) {
- groupOfElems.sort();
- theGroupsOfElementsID.push_back(groupOfElems);
+ SMDS_MeshElement* newElem = aMesh->AddPolygonalFace(poly_nodes);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId && newElem )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+
+ aMesh->RemoveElement(theFace);
}
+ return;
}
-}
-
-//=======================================================================
-//function : MergeElements
-//purpose : In each given group, substitute all elements by the first one.
-//=======================================================================
-
-void SMESH_MeshEditor::MergeElements(TListOfListOfElementsID & theGroupsOfElementsID)
-{
- myLastCreatedElems.Clear();
- myLastCreatedNodes.Clear();
- typedef list<int> TListOfIDs;
- TListOfIDs rmElemIds; // IDs of elems to remove
-
- SMESHDS_Mesh* aMesh = GetMeshDS();
+ SMESHDS_Mesh *aMesh = GetMeshDS();
+ if( !theFace->IsQuadratic() ) {
- TListOfListOfElementsID::iterator groupsIt = theGroupsOfElementsID.begin();
- while ( groupsIt != theGroupsOfElementsID.end() ) {
- TListOfIDs& aGroupOfElemID = *groupsIt;
- aGroupOfElemID.sort();
- int elemIDToKeep = aGroupOfElemID.front();
- const SMDS_MeshElement* elemToKeep = aMesh->FindElement(elemIDToKeep);
- aGroupOfElemID.pop_front();
- TListOfIDs::iterator idIt = aGroupOfElemID.begin();
- while ( idIt != aGroupOfElemID.end() ) {
- int elemIDToRemove = *idIt;
- const SMDS_MeshElement* elemToRemove = aMesh->FindElement(elemIDToRemove);
- // add the kept element in groups of removed one (PAL15188)
- AddToSameGroups( elemToKeep, elemToRemove, aMesh );
- rmElemIds.push_back( elemIDToRemove );
- ++idIt;
+ // put aNodesToInsert between theBetweenNode1 and theBetweenNode2
+ int nbLinkNodes = 2 + aNodesToInsert.size();
+ //const SMDS_MeshNode* linkNodes[ nbLinkNodes ];
+ vector<const SMDS_MeshNode*> linkNodes( nbLinkNodes );
+ linkNodes[ 0 ] = nodes[ il1 ];
+ linkNodes[ nbLinkNodes - 1 ] = nodes[ il2 ];
+ list<const SMDS_MeshNode*>::iterator nIt = aNodesToInsert.begin();
+ for ( iNode = 1; nIt != aNodesToInsert.end(); nIt++ ) {
+ linkNodes[ iNode++ ] = *nIt;
+ }
+ // decide how to split a quadrangle: compare possible variants
+ // and choose which of splits to be a quadrangle
+ int i1, i2, iSplit, nbSplits = nbLinkNodes - 1, iBestQuad;
+ if ( nbFaceNodes == 3 ) {
+ iBestQuad = nbSplits;
+ i4 = i3;
+ }
+ else if ( nbFaceNodes == 4 ) {
+ SMESH::Controls::NumericalFunctorPtr aCrit( new SMESH::Controls::AspectRatio);
+ double aBestRate = DBL_MAX;
+ for ( int iQuad = 0; iQuad < nbSplits; iQuad++ ) {
+ i1 = 0; i2 = 1;
+ double aBadRate = 0;
+ // evaluate elements quality
+ for ( iSplit = 0; iSplit < nbSplits; iSplit++ ) {
+ if ( iSplit == iQuad ) {
+ SMDS_FaceOfNodes quad (linkNodes[ i1++ ],
+ linkNodes[ i2++ ],
+ nodes[ i3 ],
+ nodes[ i4 ]);
+ aBadRate += getBadRate( &quad, aCrit );
+ }
+ else {
+ SMDS_FaceOfNodes tria (linkNodes[ i1++ ],
+ linkNodes[ i2++ ],
+ nodes[ iSplit < iQuad ? i4 : i3 ]);
+ aBadRate += getBadRate( &tria, aCrit );
+ }
+ }
+ // choice
+ if ( aBadRate < aBestRate ) {
+ iBestQuad = iQuad;
+ aBestRate = aBadRate;
+ }
+ }
}
- ++groupsIt;
- }
-
- Remove( rmElemIds, false );
-}
-//=======================================================================
-//function : MergeEqualElements
-//purpose : Remove all but one of elements built on the same nodes.
-//=======================================================================
+ // create new elements
+ int aShapeId = FindShape( theFace );
-void SMESH_MeshEditor::MergeEqualElements()
-{
- set<const SMDS_MeshElement*> aMeshElements; /* empty input -
- to merge equal elements in the whole mesh */
- TListOfListOfElementsID aGroupsOfElementsID;
- FindEqualElements(aMeshElements, aGroupsOfElementsID);
- MergeElements(aGroupsOfElementsID);
-}
+ i1 = 0; i2 = 1;
+ for ( iSplit = 0; iSplit < nbSplits - 1; iSplit++ ) {
+ SMDS_MeshElement* newElem = 0;
+ if ( iSplit == iBestQuad )
+ newElem = aMesh->AddFace (linkNodes[ i1++ ],
+ linkNodes[ i2++ ],
+ nodes[ i3 ],
+ nodes[ i4 ]);
+ else
+ newElem = aMesh->AddFace (linkNodes[ i1++ ],
+ linkNodes[ i2++ ],
+ nodes[ iSplit < iBestQuad ? i4 : i3 ]);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId && newElem )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ }
-//=======================================================================
-//function : FindFaceInSet
-//purpose : Return a face having linked nodes n1 and n2 and which is
-// - not in avoidSet,
-// - in elemSet provided that !elemSet.empty()
-//=======================================================================
+ // change nodes of theFace
+ const SMDS_MeshNode* newNodes[ 4 ];
+ newNodes[ 0 ] = linkNodes[ i1 ];
+ newNodes[ 1 ] = linkNodes[ i2 ];
+ newNodes[ 2 ] = nodes[ iSplit >= iBestQuad ? i3 : i4 ];
+ newNodes[ 3 ] = nodes[ i4 ];
+ //aMesh->ChangeElementNodes( theFace, newNodes, iSplit == iBestQuad ? 4 : 3 );
+ const SMDS_MeshElement* newElem = 0;
+ if (iSplit == iBestQuad)
+ newElem = aMesh->AddFace( newNodes[0], newNodes[1], newNodes[2], newNodes[3] );
+ else
+ newElem = aMesh->AddFace( newNodes[0], newNodes[1], newNodes[2] );
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId && newElem )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+} // end if(!theFace->IsQuadratic())
+ else { // theFace is quadratic
+ // we have to split theFace on simple triangles and one simple quadrangle
+ int tmp = il1/2;
+ int nbshift = tmp*2;
+ // shift nodes in nodes[] by nbshift
+ int i,j;
+ for(i=0; i<nbshift; i++) {
+ const SMDS_MeshNode* n = nodes[0];
+ for(j=0; j<nbFaceNodes-1; j++) {
+ nodes[j] = nodes[j+1];
+ }
+ nodes[nbFaceNodes-1] = n;
+ }
+ il1 = il1 - nbshift;
+ // now have to insert nodes between n0 and n1 or n1 and n2 (see below)
+ // n0 n1 n2 n0 n1 n2
+ // +-----+-----+ +-----+-----+
+ // \ / | |
+ // \ / | |
+ // n5+ +n3 n7+ +n3
+ // \ / | |
+ // \ / | |
+ // + +-----+-----+
+ // n4 n6 n5 n4
-const SMDS_MeshElement*
- SMESH_MeshEditor::FindFaceInSet(const SMDS_MeshNode* n1,
- const SMDS_MeshNode* n2,
- const TIDSortedElemSet& elemSet,
- const TIDSortedElemSet& avoidSet)
+ // create new elements
+ int aShapeId = FindShape( theFace );
-{
- SMDS_ElemIteratorPtr invElemIt = n1->GetInverseElementIterator(SMDSAbs_Face);
- while ( invElemIt->more() ) { // loop on inverse elements of n1
- const SMDS_MeshElement* elem = invElemIt->next();
- if (avoidSet.find( elem ) != avoidSet.end() )
- continue;
- if ( !elemSet.empty() && elemSet.find( elem ) == elemSet.end())
- continue;
- // get face nodes and find index of n1
- int i1, nbN = elem->NbNodes(), iNode = 0;
- //const SMDS_MeshNode* faceNodes[ nbN ], *n;
- vector<const SMDS_MeshNode*> faceNodes( nbN );
- const SMDS_MeshNode* n;
- SMDS_ElemIteratorPtr nIt = elem->nodesIterator();
- while ( nIt->more() ) {
- faceNodes[ iNode ] = static_cast<const SMDS_MeshNode*>( nIt->next() );
- if ( faceNodes[ iNode++ ] == n1 )
- i1 = iNode - 1;
+ int n1,n2,n3;
+ if(nbFaceNodes==6) { // quadratic triangle
+ SMDS_MeshElement* newElem =
+ aMesh->AddFace(nodes[3],nodes[4],nodes[5]);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId && newElem )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ if(theFace->IsMediumNode(nodes[il1])) {
+ // create quadrangle
+ newElem = aMesh->AddFace(nodes[0],nodes[1],nodes[3],nodes[5]);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId && newElem )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ n1 = 1;
+ n2 = 2;
+ n3 = 3;
+ }
+ else {
+ // create quadrangle
+ newElem = aMesh->AddFace(nodes[1],nodes[2],nodes[3],nodes[5]);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId && newElem )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ n1 = 0;
+ n2 = 1;
+ n3 = 5;
+ }
}
- // find a n2 linked to n1
- if(!elem->IsQuadratic()) {
- for ( iNode = 0; iNode < 2; iNode++ ) {
- if ( iNode ) // node before n1
- n = faceNodes[ i1 == 0 ? nbN - 1 : i1 - 1 ];
- else // node after n1
- n = faceNodes[ i1 + 1 == nbN ? 0 : i1 + 1 ];
- if ( n == n2 )
- return elem;
- }
- }
- else { // analysis for quadratic elements
- bool IsFind = false;
- // check using only corner nodes
- for ( iNode = 0; iNode < 2; iNode++ ) {
- if ( iNode ) // node before n1
- n = faceNodes[ i1 == 0 ? nbN/2 - 1 : i1 - 1 ];
- else // node after n1
- n = faceNodes[ i1 + 1 == nbN/2 ? 0 : i1 + 1 ];
- if ( n == n2 )
- IsFind = true;
- }
- if(IsFind) {
- return elem;
+ else { // nbFaceNodes==8 - quadratic quadrangle
+ SMDS_MeshElement* newElem =
+ aMesh->AddFace(nodes[3],nodes[4],nodes[5]);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId && newElem )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ newElem = aMesh->AddFace(nodes[5],nodes[6],nodes[7]);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId && newElem )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ newElem = aMesh->AddFace(nodes[5],nodes[7],nodes[3]);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId && newElem )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ if(theFace->IsMediumNode(nodes[il1])) {
+ // create quadrangle
+ newElem = aMesh->AddFace(nodes[0],nodes[1],nodes[3],nodes[7]);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId && newElem )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ n1 = 1;
+ n2 = 2;
+ n3 = 3;
}
else {
- // check using all nodes
- const SMDS_QuadraticFaceOfNodes* F =
- static_cast<const SMDS_QuadraticFaceOfNodes*>(elem);
- // use special nodes iterator
- iNode = 0;
- SMDS_NodeIteratorPtr anIter = F->interlacedNodesIterator();
- while ( anIter->more() ) {
- faceNodes[iNode] = static_cast<const SMDS_MeshNode*>(anIter->next());
- if ( faceNodes[ iNode++ ] == n1 )
- i1 = iNode - 1;
- }
- for ( iNode = 0; iNode < 2; iNode++ ) {
- if ( iNode ) // node before n1
- n = faceNodes[ i1 == 0 ? nbN - 1 : i1 - 1 ];
- else // node after n1
- n = faceNodes[ i1 + 1 == nbN ? 0 : i1 + 1 ];
- if ( n == n2 ) {
- return elem;
- }
- }
+ // create quadrangle
+ newElem = aMesh->AddFace(nodes[1],nodes[2],nodes[3],nodes[7]);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId && newElem )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ n1 = 0;
+ n2 = 1;
+ n3 = 7;
}
- } // end analysis for quadratic elements
+ }
+ // create needed triangles using n1,n2,n3 and inserted nodes
+ int nbn = 2 + aNodesToInsert.size();
+ //const SMDS_MeshNode* aNodes[nbn];
+ vector<const SMDS_MeshNode*> aNodes(nbn);
+ aNodes[0] = nodes[n1];
+ aNodes[nbn-1] = nodes[n2];
+ list<const SMDS_MeshNode*>::iterator nIt = aNodesToInsert.begin();
+ for ( iNode = 1; nIt != aNodesToInsert.end(); nIt++ ) {
+ aNodes[iNode++] = *nIt;
+ }
+ for(i=1; i<nbn; i++) {
+ SMDS_MeshElement* newElem =
+ aMesh->AddFace(aNodes[i-1],aNodes[i],nodes[n3]);
+ myLastCreatedElems.Append(newElem);
+ if ( aShapeId && newElem )
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ }
}
- return 0;
+ // remove old face
+ aMesh->RemoveElement(theFace);
}
//=======================================================================
-//function : findAdjacentFace
+//function : UpdateVolumes
//purpose :
//=======================================================================
-
-static const SMDS_MeshElement* findAdjacentFace(const SMDS_MeshNode* n1,
- const SMDS_MeshNode* n2,
- const SMDS_MeshElement* elem)
+void SMESH_MeshEditor::UpdateVolumes (const SMDS_MeshNode* theBetweenNode1,
+ const SMDS_MeshNode* theBetweenNode2,
+ list<const SMDS_MeshNode*>& theNodesToInsert)
{
- TIDSortedElemSet elemSet, avoidSet;
- if ( elem )
- avoidSet.insert ( elem );
- return SMESH_MeshEditor::FindFaceInSet( n1, n2, elemSet, avoidSet );
-}
+ myLastCreatedElems.Clear();
+ myLastCreatedNodes.Clear();
-//=======================================================================
-//function : FindFreeBorder
-//purpose :
-//=======================================================================
+ SMDS_ElemIteratorPtr invElemIt = theBetweenNode1->GetInverseElementIterator(SMDSAbs_Volume);
+ while (invElemIt->more()) { // loop on inverse elements of theBetweenNode1
+ const SMDS_MeshElement* elem = invElemIt->next();
-#define ControlFreeBorder SMESH::Controls::FreeEdges::IsFreeEdge
+ // check, if current volume has link theBetweenNode1 - theBetweenNode2
+ SMDS_VolumeTool aVolume (elem);
+ if (!aVolume.IsLinked(theBetweenNode1, theBetweenNode2))
+ continue;
-bool SMESH_MeshEditor::FindFreeBorder (const SMDS_MeshNode* theFirstNode,
- const SMDS_MeshNode* theSecondNode,
- const SMDS_MeshNode* theLastNode,
- list< const SMDS_MeshNode* > & theNodes,
- list< const SMDS_MeshElement* >& theFaces)
-{
- if ( !theFirstNode || !theSecondNode )
- return false;
- // find border face between theFirstNode and theSecondNode
- const SMDS_MeshElement* curElem = findAdjacentFace( theFirstNode, theSecondNode, 0 );
- if ( !curElem )
- return false;
+ // insert new nodes in all faces of the volume, sharing link theBetweenNode1 - theBetweenNode2
+ int iface, nbFaces = aVolume.NbFaces();
+ vector<const SMDS_MeshNode *> poly_nodes;
+ vector<int> quantities (nbFaces);
- theFaces.push_back( curElem );
- theNodes.push_back( theFirstNode );
- theNodes.push_back( theSecondNode );
+ for (iface = 0; iface < nbFaces; iface++) {
+ int nbFaceNodes = aVolume.NbFaceNodes(iface), nbInserted = 0;
+ // faceNodes will contain (nbFaceNodes + 1) nodes, last = first
+ const SMDS_MeshNode** faceNodes = aVolume.GetFaceNodes(iface);
- //vector<const SMDS_MeshNode*> nodes;
- const SMDS_MeshNode *nIgnore = theFirstNode, *nStart = theSecondNode;
- set < const SMDS_MeshElement* > foundElems;
- bool needTheLast = ( theLastNode != 0 );
+ for (int inode = 0; inode < nbFaceNodes; inode++) {
+ poly_nodes.push_back(faceNodes[inode]);
- while ( nStart != theLastNode ) {
- if ( nStart == theFirstNode )
- return !needTheLast;
+ if (nbInserted == 0) {
+ if (faceNodes[inode] == theBetweenNode1) {
+ if (faceNodes[inode + 1] == theBetweenNode2) {
+ nbInserted = theNodesToInsert.size();
- // find all free border faces sharing form nStart
+ // add nodes to insert
+ list<const SMDS_MeshNode*>::iterator nIt = theNodesToInsert.begin();
+ for (; nIt != theNodesToInsert.end(); nIt++) {
+ poly_nodes.push_back(*nIt);
+ }
+ }
+ }
+ else if (faceNodes[inode] == theBetweenNode2) {
+ if (faceNodes[inode + 1] == theBetweenNode1) {
+ nbInserted = theNodesToInsert.size();
- list< const SMDS_MeshElement* > curElemList;
- list< const SMDS_MeshNode* > nStartList;
- SMDS_ElemIteratorPtr invElemIt = nStart->GetInverseElementIterator(SMDSAbs_Face);
- while ( invElemIt->more() ) {
- const SMDS_MeshElement* e = invElemIt->next();
- if ( e == curElem || foundElems.insert( e ).second ) {
- // get nodes
- int iNode = 0, nbNodes = e->NbNodes();
- //const SMDS_MeshNode* nodes[nbNodes+1];
- vector<const SMDS_MeshNode*> nodes(nbNodes+1);
-
- if(e->IsQuadratic()) {
- const SMDS_QuadraticFaceOfNodes* F =
- static_cast<const SMDS_QuadraticFaceOfNodes*>(e);
- // use special nodes iterator
- SMDS_NodeIteratorPtr anIter = F->interlacedNodesIterator();
- while( anIter->more() ) {
- nodes[ iNode++ ] = anIter->next();
+ // add nodes to insert in reversed order
+ list<const SMDS_MeshNode*>::iterator nIt = theNodesToInsert.end();
+ nIt--;
+ for (; nIt != theNodesToInsert.begin(); nIt--) {
+ poly_nodes.push_back(*nIt);
+ }
+ poly_nodes.push_back(*nIt);
+ }
}
- }
- else {
- SMDS_ElemIteratorPtr nIt = e->nodesIterator();
- while ( nIt->more() )
- nodes[ iNode++ ] = static_cast<const SMDS_MeshNode*>( nIt->next() );
- }
- nodes[ iNode ] = nodes[ 0 ];
- // check 2 links
- for ( iNode = 0; iNode < nbNodes; iNode++ )
- if (((nodes[ iNode ] == nStart && nodes[ iNode + 1] != nIgnore ) ||
- (nodes[ iNode + 1] == nStart && nodes[ iNode ] != nIgnore )) &&
- ControlFreeBorder( &nodes[ iNode ], e->GetID() ))
- {
- nStartList.push_back( nodes[ iNode + ( nodes[ iNode ] == nStart ? 1 : 0 )]);
- curElemList.push_back( e );
+ else {
}
+ }
}
+ quantities[iface] = nbFaceNodes + nbInserted;
}
- // analyse the found
- int nbNewBorders = curElemList.size();
- if ( nbNewBorders == 0 ) {
- // no free border furthermore
- return !needTheLast;
- }
- else if ( nbNewBorders == 1 ) {
- // one more element found
- nIgnore = nStart;
- nStart = nStartList.front();
- curElem = curElemList.front();
- theFaces.push_back( curElem );
- theNodes.push_back( nStart );
+ // Replace or update the volume
+ SMESHDS_Mesh *aMesh = GetMeshDS();
+
+ if (elem->IsPoly()) {
+ aMesh->ChangePolyhedronNodes(elem, poly_nodes, quantities);
+
}
else {
- // several continuations found
- list< const SMDS_MeshElement* >::iterator curElemIt;
- list< const SMDS_MeshNode* >::iterator nStartIt;
- // check if one of them reached the last node
- if ( needTheLast ) {
- for (curElemIt = curElemList.begin(), nStartIt = nStartList.begin();
- curElemIt!= curElemList.end();
- curElemIt++, nStartIt++ )
- if ( *nStartIt == theLastNode ) {
- theFaces.push_back( *curElemIt );
- theNodes.push_back( *nStartIt );
- return true;
- }
- }
- // find the best free border by the continuations
- list<const SMDS_MeshNode*> contNodes[ 2 ], *cNL;
- list<const SMDS_MeshElement*> contFaces[ 2 ], *cFL;
- for (curElemIt = curElemList.begin(), nStartIt = nStartList.begin();
- curElemIt!= curElemList.end();
- curElemIt++, nStartIt++ )
- {
- cNL = & contNodes[ contNodes[0].empty() ? 0 : 1 ];
- cFL = & contFaces[ contFaces[0].empty() ? 0 : 1 ];
- // find one more free border
- if ( ! FindFreeBorder( nStart, *nStartIt, theLastNode, *cNL, *cFL )) {
- cNL->clear();
- cFL->clear();
- }
- else if ( !contNodes[0].empty() && !contNodes[1].empty() ) {
- // choice: clear a worse one
- int iLongest = ( contNodes[0].size() < contNodes[1].size() ? 1 : 0 );
- int iWorse = ( needTheLast ? 1 - iLongest : iLongest );
- contNodes[ iWorse ].clear();
- contFaces[ iWorse ].clear();
- }
- }
- if ( contNodes[0].empty() && contNodes[1].empty() )
- return false;
+ int aShapeId = FindShape( elem );
- // append the best free border
- cNL = & contNodes[ contNodes[0].empty() ? 1 : 0 ];
- cFL = & contFaces[ contFaces[0].empty() ? 1 : 0 ];
- theNodes.pop_back(); // remove nIgnore
- theNodes.pop_back(); // remove nStart
- theFaces.pop_back(); // remove curElem
- list< const SMDS_MeshNode* >::iterator nIt = cNL->begin();
- list< const SMDS_MeshElement* >::iterator fIt = cFL->begin();
- for ( ; nIt != cNL->end(); nIt++ ) theNodes.push_back( *nIt );
- for ( ; fIt != cFL->end(); fIt++ ) theFaces.push_back( *fIt );
- return true;
+ SMDS_MeshElement* newElem =
+ aMesh->AddPolyhedralVolume(poly_nodes, quantities);
+ myLastCreatedElems.Append(newElem);
+ if (aShapeId && newElem)
+ aMesh->SetMeshElementOnShape(newElem, aShapeId);
- } // several continuations found
- } // while ( nStart != theLastNode )
+ aMesh->RemoveElement(elem);
+ }
+ }
+}
- return true;
+namespace
+{
+ //================================================================================
+ /*!
+ * \brief Transform any volume into data of SMDSEntity_Polyhedra
+ */
+ //================================================================================
+
+ void volumeToPolyhedron( const SMDS_MeshElement* elem,
+ vector<const SMDS_MeshNode *> & nodes,
+ vector<int> & nbNodeInFaces )
+ {
+ nodes.clear();
+ nbNodeInFaces.clear();
+ SMDS_VolumeTool vTool ( elem );
+ for ( int iF = 0; iF < vTool.NbFaces(); ++iF )
+ {
+ const SMDS_MeshNode** fNodes = vTool.GetFaceNodes( iF );
+ nodes.insert( nodes.end(), fNodes, fNodes + vTool.NbFaceNodes( iF ));
+ nbNodeInFaces.push_back( vTool.NbFaceNodes( iF ));
+ }
+ }
}
//=======================================================================
-//function : CheckFreeBorderNodes
-//purpose : Return true if the tree nodes are on a free border
+/*!
+ * \brief Convert elements contained in a submesh to quadratic
+ * \return int - nb of checked elements
+ */
//=======================================================================
-bool SMESH_MeshEditor::CheckFreeBorderNodes(const SMDS_MeshNode* theNode1,
- const SMDS_MeshNode* theNode2,
- const SMDS_MeshNode* theNode3)
+int SMESH_MeshEditor::convertElemToQuadratic(SMESHDS_SubMesh * theSm,
+ SMESH_MesherHelper& theHelper,
+ const bool theForce3d)
{
- list< const SMDS_MeshNode* > nodes;
- list< const SMDS_MeshElement* > faces;
- return FindFreeBorder( theNode1, theNode2, theNode3, nodes, faces);
+ int nbElem = 0;
+ if( !theSm ) return nbElem;
+
+ vector<int> nbNodeInFaces;
+ vector<const SMDS_MeshNode *> nodes;
+ SMDS_ElemIteratorPtr ElemItr = theSm->GetElements();
+ while(ElemItr->more())
+ {
+ nbElem++;
+ const SMDS_MeshElement* elem = ElemItr->next();
+ if( !elem || elem->IsQuadratic() ) continue;
+
+ // get elem data needed to re-create it
+ //
+ const int id = elem->GetID();
+ const int nbNodes = elem->NbNodes();
+ const SMDSAbs_ElementType aType = elem->GetType();
+ const SMDSAbs_EntityType aGeomType = elem->GetEntityType();
+ nodes.assign(elem->begin_nodes(), elem->end_nodes());
+ if ( aGeomType == SMDSEntity_Polyhedra )
+ nbNodeInFaces = static_cast<const SMDS_VtkVolume* >( elem )->GetQuantities();
+ else if ( aGeomType == SMDSEntity_Hexagonal_Prism )
+ volumeToPolyhedron( elem, nodes, nbNodeInFaces );
+
+ // remove a linear element
+ GetMeshDS()->RemoveFreeElement(elem, theSm, /*fromGroups=*/false);
+
+ const SMDS_MeshElement* NewElem = 0;
+
+ switch( aType )
+ {
+ case SMDSAbs_Edge :
+ {
+ NewElem = theHelper.AddEdge(nodes[0], nodes[1], id, theForce3d);
+ break;
+ }
+ case SMDSAbs_Face :
+ {
+ switch(nbNodes)
+ {
+ case 3:
+ NewElem = theHelper.AddFace(nodes[0], nodes[1], nodes[2], id, theForce3d);
+ break;
+ case 4:
+ NewElem = theHelper.AddFace(nodes[0], nodes[1], nodes[2], nodes[3], id, theForce3d);
+ break;
+ default:
+ NewElem = theHelper.AddPolygonalFace(nodes, id, theForce3d);
+ continue;
+ }
+ break;
+ }
+ case SMDSAbs_Volume :
+ {
+ switch( aGeomType )
+ {
+ case SMDSEntity_Tetra:
+ NewElem = theHelper.AddVolume(nodes[0], nodes[1], nodes[2], nodes[3], id, theForce3d);
+ break;
+ case SMDSEntity_Pyramid:
+ NewElem = theHelper.AddVolume(nodes[0], nodes[1], nodes[2], nodes[3], nodes[4], id, theForce3d);
+ break;
+ case SMDSEntity_Penta:
+ NewElem = theHelper.AddVolume(nodes[0], nodes[1], nodes[2], nodes[3], nodes[4], nodes[5], id, theForce3d);
+ break;
+ case SMDSEntity_Hexa:
+ NewElem = theHelper.AddVolume(nodes[0], nodes[1], nodes[2], nodes[3],
+ nodes[4], nodes[5], nodes[6], nodes[7], id, theForce3d);
+ break;
+ case SMDSEntity_Hexagonal_Prism:
+ default:
+ NewElem = theHelper.AddPolyhedralVolume(nodes, nbNodeInFaces, id, theForce3d);
+ }
+ break;
+ }
+ default :
+ continue;
+ }
+ ReplaceElemInGroups( elem, NewElem, GetMeshDS());
+ if( NewElem )
+ theSm->AddElement( NewElem );
+ }
+ return nbElem;
}
//=======================================================================
-//function : SewFreeBorder
+//function : ConvertToQuadratic
//purpose :
//=======================================================================
-SMESH_MeshEditor::Sew_Error
- SMESH_MeshEditor::SewFreeBorder (const SMDS_MeshNode* theBordFirstNode,
- const SMDS_MeshNode* theBordSecondNode,
- const SMDS_MeshNode* theBordLastNode,
- const SMDS_MeshNode* theSideFirstNode,
- const SMDS_MeshNode* theSideSecondNode,
- const SMDS_MeshNode* theSideThirdNode,
- const bool theSideIsFreeBorder,
- const bool toCreatePolygons,
- const bool toCreatePolyedrs)
+void SMESH_MeshEditor::ConvertToQuadratic(const bool theForce3d)
{
- myLastCreatedElems.Clear();
- myLastCreatedNodes.Clear();
-
- MESSAGE("::SewFreeBorder()");
- Sew_Error aResult = SEW_OK;
-
- // ====================================
- // find side nodes and elements
- // ====================================
+ SMESHDS_Mesh* meshDS = GetMeshDS();
- list< const SMDS_MeshNode* > nSide[ 2 ];
- list< const SMDS_MeshElement* > eSide[ 2 ];
- list< const SMDS_MeshNode* >::iterator nIt[ 2 ];
- list< const SMDS_MeshElement* >::iterator eIt[ 2 ];
+ SMESH_MesherHelper aHelper(*myMesh);
+ aHelper.SetIsQuadratic( true );
- // Free border 1
- // --------------
- if (!FindFreeBorder(theBordFirstNode,theBordSecondNode,theBordLastNode,
- nSide[0], eSide[0])) {
- MESSAGE(" Free Border 1 not found " );
- aResult = SEW_BORDER1_NOT_FOUND;
- }
- if (theSideIsFreeBorder) {
- // Free border 2
- // --------------
- if (!FindFreeBorder(theSideFirstNode, theSideSecondNode, theSideThirdNode,
- nSide[1], eSide[1])) {
- MESSAGE(" Free Border 2 not found " );
- aResult = ( aResult != SEW_OK ? SEW_BOTH_BORDERS_NOT_FOUND : SEW_BORDER2_NOT_FOUND );
+ int nbCheckedElems = 0;
+ if ( myMesh->HasShapeToMesh() )
+ {
+ if ( SMESH_subMesh *aSubMesh = myMesh->GetSubMeshContaining(myMesh->GetShapeToMesh()))
+ {
+ SMESH_subMeshIteratorPtr smIt = aSubMesh->getDependsOnIterator(true,false);
+ while ( smIt->more() ) {
+ SMESH_subMesh* sm = smIt->next();
+ if ( SMESHDS_SubMesh *smDS = sm->GetSubMeshDS() ) {
+ aHelper.SetSubShape( sm->GetSubShape() );
+ nbCheckedElems += convertElemToQuadratic(smDS, aHelper, theForce3d);
+ }
+ }
}
}
- if ( aResult != SEW_OK )
- return aResult;
-
- if (!theSideIsFreeBorder) {
- // Side 2
- // --------------
-
- // -------------------------------------------------------------------------
- // Algo:
- // 1. If nodes to merge are not coincident, move nodes of the free border
- // from the coord sys defined by the direction from the first to last
- // nodes of the border to the correspondent sys of the side 2
- // 2. On the side 2, find the links most co-directed with the correspondent
- // links of the free border
- // -------------------------------------------------------------------------
-
- // 1. Since sewing may brake if there are volumes to split on the side 2,
- // we wont move nodes but just compute new coordinates for them
- typedef map<const SMDS_MeshNode*, gp_XYZ> TNodeXYZMap;
- TNodeXYZMap nBordXYZ;
- list< const SMDS_MeshNode* >& bordNodes = nSide[ 0 ];
- list< const SMDS_MeshNode* >::iterator nBordIt;
-
- gp_XYZ Pb1( theBordFirstNode->X(), theBordFirstNode->Y(), theBordFirstNode->Z() );
- gp_XYZ Pb2( theBordLastNode->X(), theBordLastNode->Y(), theBordLastNode->Z() );
- gp_XYZ Ps1( theSideFirstNode->X(), theSideFirstNode->Y(), theSideFirstNode->Z() );
- gp_XYZ Ps2( theSideSecondNode->X(), theSideSecondNode->Y(), theSideSecondNode->Z() );
- double tol2 = 1.e-8;
- gp_Vec Vbs1( Pb1 - Ps1 ),Vbs2( Pb2 - Ps2 );
- if ( Vbs1.SquareMagnitude() > tol2 || Vbs2.SquareMagnitude() > tol2 ) {
- // Need node movement.
-
- // find X and Z axes to create trsf
- gp_Vec Zb( Pb1 - Pb2 ), Zs( Ps1 - Ps2 );
- gp_Vec X = Zs ^ Zb;
- if ( X.SquareMagnitude() <= gp::Resolution() * gp::Resolution() )
- // Zb || Zs
- X = gp_Ax2( gp::Origin(), Zb ).XDirection();
+ int totalNbElems = meshDS->NbEdges() + meshDS->NbFaces() + meshDS->NbVolumes();
+ if ( nbCheckedElems < totalNbElems ) // not all elements are in submeshes
+ {
+ SMESHDS_SubMesh *smDS = 0;
+ SMDS_EdgeIteratorPtr aEdgeItr = meshDS->edgesIterator();
+ while(aEdgeItr->more())
+ {
+ const SMDS_MeshEdge* edge = aEdgeItr->next();
+ if(edge && !edge->IsQuadratic())
+ {
+ int id = edge->GetID();
+ //MESSAGE("edge->GetID() " << id);
+ const SMDS_MeshNode* n1 = edge->GetNode(0);
+ const SMDS_MeshNode* n2 = edge->GetNode(1);
- // coord systems
- gp_Ax3 toBordAx( Pb1, Zb, X );
- gp_Ax3 fromSideAx( Ps1, Zs, X );
- gp_Ax3 toGlobalAx( gp::Origin(), gp::DZ(), gp::DX() );
- // set trsf
- gp_Trsf toBordSys, fromSide2Sys;
- toBordSys.SetTransformation( toBordAx );
- fromSide2Sys.SetTransformation( fromSideAx, toGlobalAx );
- fromSide2Sys.SetScaleFactor( Zs.Magnitude() / Zb.Magnitude() );
+ meshDS->RemoveFreeElement(edge, smDS, /*fromGroups=*/false);
- // move
- for ( nBordIt = bordNodes.begin(); nBordIt != bordNodes.end(); nBordIt++ ) {
- const SMDS_MeshNode* n = *nBordIt;
- gp_XYZ xyz( n->X(),n->Y(),n->Z() );
- toBordSys.Transforms( xyz );
- fromSide2Sys.Transforms( xyz );
- nBordXYZ.insert( TNodeXYZMap::value_type( n, xyz ));
- }
- }
- else {
- // just insert nodes XYZ in the nBordXYZ map
- for ( nBordIt = bordNodes.begin(); nBordIt != bordNodes.end(); nBordIt++ ) {
- const SMDS_MeshNode* n = *nBordIt;
- nBordXYZ.insert( TNodeXYZMap::value_type( n, gp_XYZ( n->X(),n->Y(),n->Z() )));
+ const SMDS_MeshEdge* NewEdge = aHelper.AddEdge(n1, n2, id, theForce3d);
+ ReplaceElemInGroups( edge, NewEdge, GetMeshDS());
}
}
+ SMDS_FaceIteratorPtr aFaceItr = meshDS->facesIterator();
+ while(aFaceItr->more())
+ {
+ const SMDS_MeshFace* face = aFaceItr->next();
+ if(!face || face->IsQuadratic() ) continue;
- // 2. On the side 2, find the links most co-directed with the correspondent
- // links of the free border
-
- list< const SMDS_MeshElement* >& sideElems = eSide[ 1 ];
- list< const SMDS_MeshNode* >& sideNodes = nSide[ 1 ];
- sideNodes.push_back( theSideFirstNode );
-
- bool hasVolumes = false;
- LinkID_Gen aLinkID_Gen( GetMeshDS() );
- set<long> foundSideLinkIDs, checkedLinkIDs;
- SMDS_VolumeTool volume;
- //const SMDS_MeshNode* faceNodes[ 4 ];
+ const int id = face->GetID();
+ const SMDSAbs_EntityType type = face->GetEntityType();
+ vector<const SMDS_MeshNode *> nodes ( face->begin_nodes(), face->end_nodes());
- const SMDS_MeshNode* sideNode;
- const SMDS_MeshElement* sideElem;
- const SMDS_MeshNode* prevSideNode = theSideFirstNode;
- const SMDS_MeshNode* prevBordNode = theBordFirstNode;
- nBordIt = bordNodes.begin();
- nBordIt++;
- // border node position and border link direction to compare with
- gp_XYZ bordPos = nBordXYZ[ *nBordIt ];
- gp_XYZ bordDir = bordPos - nBordXYZ[ prevBordNode ];
- // choose next side node by link direction or by closeness to
- // the current border node:
- bool searchByDir = ( *nBordIt != theBordLastNode );
- do {
- // find the next node on the Side 2
- sideNode = 0;
- double maxDot = -DBL_MAX, minDist = DBL_MAX;
- long linkID;
- checkedLinkIDs.clear();
- gp_XYZ prevXYZ( prevSideNode->X(), prevSideNode->Y(), prevSideNode->Z() );
+ meshDS->RemoveFreeElement(face, smDS, /*fromGroups=*/false);
- // loop on inverse elements of current node (prevSideNode) on the Side 2
- SMDS_ElemIteratorPtr invElemIt = prevSideNode->GetInverseElementIterator();
- while ( invElemIt->more() )
- {
- const SMDS_MeshElement* elem = invElemIt->next();
- // prepare data for a loop on links coming to prevSideNode, of a face or a volume
- int iPrevNode, iNode = 0, nbNodes = elem->NbNodes();
- vector< const SMDS_MeshNode* > faceNodes( nbNodes, (const SMDS_MeshNode*)0 );
- bool isVolume = volume.Set( elem );
- const SMDS_MeshNode** nodes = isVolume ? volume.GetNodes() : & faceNodes[0];
- if ( isVolume ) // --volume
- hasVolumes = true;
- else if ( elem->GetType()==SMDSAbs_Face ) { // --face
- // retrieve all face nodes and find iPrevNode - an index of the prevSideNode
- if(elem->IsQuadratic()) {
- const SMDS_QuadraticFaceOfNodes* F =
- static_cast<const SMDS_QuadraticFaceOfNodes*>(elem);
- // use special nodes iterator
- SMDS_NodeIteratorPtr anIter = F->interlacedNodesIterator();
- while( anIter->more() ) {
- nodes[ iNode ] = anIter->next();
- if ( nodes[ iNode++ ] == prevSideNode )
- iPrevNode = iNode - 1;
- }
- }
- else {
- SMDS_ElemIteratorPtr nIt = elem->nodesIterator();
- while ( nIt->more() ) {
- nodes[ iNode ] = cast2Node( nIt->next() );
- if ( nodes[ iNode++ ] == prevSideNode )
- iPrevNode = iNode - 1;
- }
- }
- // there are 2 links to check
- nbNodes = 2;
- }
- else // --edge
- continue;
- // loop on links, to be precise, on the second node of links
- for ( iNode = 0; iNode < nbNodes; iNode++ ) {
- const SMDS_MeshNode* n = nodes[ iNode ];
- if ( isVolume ) {
- if ( !volume.IsLinked( n, prevSideNode ))
- continue;
- }
- else {
- if ( iNode ) // a node before prevSideNode
- n = nodes[ iPrevNode == 0 ? elem->NbNodes() - 1 : iPrevNode - 1 ];
- else // a node after prevSideNode
- n = nodes[ iPrevNode + 1 == elem->NbNodes() ? 0 : iPrevNode + 1 ];
- }
- // check if this link was already used
- long iLink = aLinkID_Gen.GetLinkID( prevSideNode, n );
- bool isJustChecked = !checkedLinkIDs.insert( iLink ).second;
- if (!isJustChecked &&
- foundSideLinkIDs.find( iLink ) == foundSideLinkIDs.end() )
- {
- // test a link geometrically
- gp_XYZ nextXYZ ( n->X(), n->Y(), n->Z() );
- bool linkIsBetter = false;
- double dot = 0.0, dist = 0.0;
- if ( searchByDir ) { // choose most co-directed link
- dot = bordDir * ( nextXYZ - prevXYZ ).Normalized();
- linkIsBetter = ( dot > maxDot );
- }
- else { // choose link with the node closest to bordPos
- dist = ( nextXYZ - bordPos ).SquareModulus();
- linkIsBetter = ( dist < minDist );
- }
- if ( linkIsBetter ) {
- maxDot = dot;
- minDist = dist;
- linkID = iLink;
- sideNode = n;
- sideElem = elem;
- }
- }
- }
- } // loop on inverse elements of prevSideNode
+ SMDS_MeshFace * NewFace = 0;
+ switch( type )
+ {
+ case SMDSEntity_Triangle:
+ NewFace = aHelper.AddFace(nodes[0], nodes[1], nodes[2], id, theForce3d);
+ break;
+ case SMDSEntity_Quadrangle:
+ NewFace = aHelper.AddFace(nodes[0], nodes[1], nodes[2], nodes[3], id, theForce3d);
+ break;
+ default:
+ NewFace = aHelper.AddPolygonalFace(nodes, id, theForce3d);
+ }
+ ReplaceElemInGroups( face, NewFace, GetMeshDS());
+ }
+ vector<int> nbNodeInFaces;
+ SMDS_VolumeIteratorPtr aVolumeItr = meshDS->volumesIterator();
+ while(aVolumeItr->more())
+ {
+ const SMDS_MeshVolume* volume = aVolumeItr->next();
+ if(!volume || volume->IsQuadratic() ) continue;
- if ( !sideNode ) {
- MESSAGE(" Cant find path by links of the Side 2 ");
- return SEW_BAD_SIDE_NODES;
+ const int id = volume->GetID();
+ const SMDSAbs_EntityType type = volume->GetEntityType();
+ vector<const SMDS_MeshNode *> nodes (volume->begin_nodes(), volume->end_nodes());
+ if ( type == SMDSEntity_Polyhedra )
+ nbNodeInFaces = static_cast<const SMDS_VtkVolume* >(volume)->GetQuantities();
+ else if ( type == SMDSEntity_Hexagonal_Prism )
+ volumeToPolyhedron( volume, nodes, nbNodeInFaces );
+
+ meshDS->RemoveFreeElement(volume, smDS, /*fromGroups=*/false);
+
+ SMDS_MeshVolume * NewVolume = 0;
+ switch ( type )
+ {
+ case SMDSEntity_Tetra:
+ NewVolume = aHelper.AddVolume(nodes[0], nodes[1], nodes[2], nodes[3], id, theForce3d );
+ break;
+ case SMDSEntity_Hexa:
+ NewVolume = aHelper.AddVolume(nodes[0], nodes[1], nodes[2], nodes[3],
+ nodes[4], nodes[5], nodes[6], nodes[7], id, theForce3d);
+ break;
+ case SMDSEntity_Pyramid:
+ NewVolume = aHelper.AddVolume(nodes[0], nodes[1], nodes[2],
+ nodes[3], nodes[4], id, theForce3d);
+ break;
+ case SMDSEntity_Penta:
+ NewVolume = aHelper.AddVolume(nodes[0], nodes[1], nodes[2],
+ nodes[3], nodes[4], nodes[5], id, theForce3d);
+ break;
+ case SMDSEntity_Hexagonal_Prism:
+ default:
+ NewVolume = aHelper.AddPolyhedralVolume(nodes, nbNodeInFaces, id, theForce3d);
}
- sideNodes.push_back( sideNode );
- sideElems.push_back( sideElem );
- foundSideLinkIDs.insert ( linkID );
- prevSideNode = sideNode;
+ ReplaceElemInGroups(volume, NewVolume, meshDS);
+ }
+ }
- if ( *nBordIt == theBordLastNode )
- searchByDir = false;
- else {
- // find the next border link to compare with
- gp_XYZ sidePos( sideNode->X(), sideNode->Y(), sideNode->Z() );
- searchByDir = ( bordDir * ( sidePos - bordPos ) <= 0 );
- // move to next border node if sideNode is before forward border node (bordPos)
- while ( *nBordIt != theBordLastNode && !searchByDir ) {
- prevBordNode = *nBordIt;
- nBordIt++;
- bordPos = nBordXYZ[ *nBordIt ];
- bordDir = bordPos - nBordXYZ[ prevBordNode ];
- searchByDir = ( bordDir * ( sidePos - bordPos ) <= 0 );
- }
+ if ( !theForce3d )
+ { // setenv NO_FixQuadraticElements to know if FixQuadraticElements() is guilty of bad conversion
+ aHelper.SetSubShape(0); // apply FixQuadraticElements() to the whole mesh
+ aHelper.FixQuadraticElements();
+ }
+}
+
+//================================================================================
+/*!
+ * \brief Makes given elements quadratic
+ * \param theForce3d - if true, the medium nodes will be placed in the middle of link
+ * \param theElements - elements to make quadratic
+ */
+//================================================================================
+
+void SMESH_MeshEditor::ConvertToQuadratic(const bool theForce3d,
+ TIDSortedElemSet& theElements)
+{
+ if ( theElements.empty() ) return;
+
+ // we believe that all theElements are of the same type
+ const SMDSAbs_ElementType elemType = (*theElements.begin())->GetType();
+
+ // get all nodes shared by theElements
+ TIDSortedNodeSet allNodes;
+ TIDSortedElemSet::iterator eIt = theElements.begin();
+ for ( ; eIt != theElements.end(); ++eIt )
+ allNodes.insert( (*eIt)->begin_nodes(), (*eIt)->end_nodes() );
+
+ // complete theElements with elements of lower dim whose all nodes are in allNodes
+
+ TIDSortedElemSet quadAdjacentElems [ SMDSAbs_NbElementTypes ]; // quadratic adjacent elements
+ TIDSortedElemSet checkedAdjacentElems [ SMDSAbs_NbElementTypes ];
+ TIDSortedNodeSet::iterator nIt = allNodes.begin();
+ for ( ; nIt != allNodes.end(); ++nIt )
+ {
+ const SMDS_MeshNode* n = *nIt;
+ SMDS_ElemIteratorPtr invIt = n->GetInverseElementIterator();
+ while ( invIt->more() )
+ {
+ const SMDS_MeshElement* e = invIt->next();
+ if ( e->IsQuadratic() )
+ {
+ quadAdjacentElems[ e->GetType() ].insert( e );
+ continue;
+ }
+ if ( e->GetType() >= elemType )
+ {
+ continue; // same type of more complex linear element
}
+
+ if ( !checkedAdjacentElems[ e->GetType() ].insert( e ).second )
+ continue; // e is already checked
+
+ // check nodes
+ bool allIn = true;
+ SMDS_ElemIteratorPtr nodeIt = e->nodesIterator();
+ while ( nodeIt->more() && allIn )
+ allIn = allNodes.count( cast2Node( nodeIt->next() ));
+ if ( allIn )
+ theElements.insert(e );
}
- while ( sideNode != theSideSecondNode );
+ }
- if ( hasVolumes && sideNodes.size () != bordNodes.size() && !toCreatePolyedrs) {
- MESSAGE("VOLUME SPLITTING IS FORBIDDEN");
- return SEW_VOLUMES_TO_SPLIT; // volume splitting is forbidden
+ SMESH_MesherHelper helper(*myMesh);
+ helper.SetIsQuadratic( true );
+
+ // add links of quadratic adjacent elements to the helper
+
+ if ( !quadAdjacentElems[SMDSAbs_Edge].empty() )
+ for ( eIt = quadAdjacentElems[SMDSAbs_Edge].begin();
+ eIt != quadAdjacentElems[SMDSAbs_Edge].end(); ++eIt )
+ {
+ helper.AddTLinks( static_cast< const SMDS_MeshEdge*> (*eIt) );
+ }
+ if ( !quadAdjacentElems[SMDSAbs_Face].empty() )
+ for ( eIt = quadAdjacentElems[SMDSAbs_Face].begin();
+ eIt != quadAdjacentElems[SMDSAbs_Face].end(); ++eIt )
+ {
+ helper.AddTLinks( static_cast< const SMDS_MeshFace*> (*eIt) );
+ }
+ if ( !quadAdjacentElems[SMDSAbs_Volume].empty() )
+ for ( eIt = quadAdjacentElems[SMDSAbs_Volume].begin();
+ eIt != quadAdjacentElems[SMDSAbs_Volume].end(); ++eIt )
+ {
+ helper.AddTLinks( static_cast< const SMDS_MeshVolume*> (*eIt) );
}
- } // end nodes search on the side 2
- // ============================
- // sew the border to the side 2
- // ============================
+ // make quadratic elements instead of linear ones
- int nbNodes[] = { nSide[0].size(), nSide[1].size() };
- int maxNbNodes = Max( nbNodes[0], nbNodes[1] );
+ SMESHDS_Mesh* meshDS = GetMeshDS();
+ SMESHDS_SubMesh* smDS = 0;
+ for ( eIt = theElements.begin(); eIt != theElements.end(); ++eIt )
+ {
+ const SMDS_MeshElement* elem = *eIt;
+ if( elem->IsQuadratic() || elem->NbNodes() < 2 || elem->IsPoly() )
+ continue;
- TListOfListOfNodes nodeGroupsToMerge;
- if ( nbNodes[0] == nbNodes[1] ||
- ( theSideIsFreeBorder && !theSideThirdNode)) {
+ const int id = elem->GetID();
+ const SMDSAbs_ElementType type = elem->GetType();
+ vector<const SMDS_MeshNode *> nodes ( elem->begin_nodes(), elem->end_nodes());
- // all nodes are to be merged
+ if ( !smDS || !smDS->Contains( elem ))
+ smDS = meshDS->MeshElements( elem->getshapeId() );
+ meshDS->RemoveFreeElement(elem, smDS, /*fromGroups=*/false);
- for (nIt[0] = nSide[0].begin(), nIt[1] = nSide[1].begin();
- nIt[0] != nSide[0].end() && nIt[1] != nSide[1].end();
- nIt[0]++, nIt[1]++ )
+ SMDS_MeshElement * newElem = 0;
+ switch( nodes.size() )
{
- nodeGroupsToMerge.push_back( list<const SMDS_MeshNode*>() );
- nodeGroupsToMerge.back().push_back( *nIt[1] ); // to keep
- nodeGroupsToMerge.back().push_back( *nIt[0] ); // to remove
+ case 4: // cases for most frequently used element types go first (for optimization)
+ if ( type == SMDSAbs_Volume )
+ newElem = helper.AddVolume(nodes[0], nodes[1], nodes[2], nodes[3], id, theForce3d);
+ else
+ newElem = helper.AddFace (nodes[0], nodes[1], nodes[2], nodes[3], id, theForce3d);
+ break;
+ case 8:
+ newElem = helper.AddVolume(nodes[0], nodes[1], nodes[2], nodes[3],
+ nodes[4], nodes[5], nodes[6], nodes[7], id, theForce3d);
+ break;
+ case 3:
+ newElem = helper.AddFace (nodes[0], nodes[1], nodes[2], id, theForce3d);
+ break;
+ case 2:
+ newElem = helper.AddEdge(nodes[0], nodes[1], id, theForce3d);
+ break;
+ case 5:
+ newElem = helper.AddVolume(nodes[0], nodes[1], nodes[2], nodes[3],
+ nodes[4], id, theForce3d);
+ break;
+ case 6:
+ newElem = helper.AddVolume(nodes[0], nodes[1], nodes[2], nodes[3],
+ nodes[4], nodes[5], id, theForce3d);
+ break;
+ default:;
}
+ ReplaceElemInGroups( elem, newElem, meshDS);
+ if( newElem && smDS )
+ smDS->AddElement( newElem );
}
- else {
- // insert new nodes into the border and the side to get equal nb of segments
+ if ( !theForce3d && !getenv("NO_FixQuadraticElements"))
+ { // setenv NO_FixQuadraticElements to know if FixQuadraticElements() is guilty of bad conversion
+ helper.SetSubShape(0); // apply FixQuadraticElements() to the whole mesh
+ helper.FixQuadraticElements();
+ }
+}
- // get normalized parameters of nodes on the borders
- //double param[ 2 ][ maxNbNodes ];
- double* param[ 2 ];
- param[0] = new double [ maxNbNodes ];
- param[1] = new double [ maxNbNodes ];
- int iNode, iBord;
- for ( iBord = 0; iBord < 2; iBord++ ) { // loop on 2 borders
- list< const SMDS_MeshNode* >& nodes = nSide[ iBord ];
- list< const SMDS_MeshNode* >::iterator nIt = nodes.begin();
- const SMDS_MeshNode* nPrev = *nIt;
- double bordLength = 0;
- for ( iNode = 0; nIt != nodes.end(); nIt++, iNode++ ) { // loop on border nodes
- const SMDS_MeshNode* nCur = *nIt;
- gp_XYZ segment (nCur->X() - nPrev->X(),
- nCur->Y() - nPrev->Y(),
- nCur->Z() - nPrev->Z());
- double segmentLen = segment.Modulus();
- bordLength += segmentLen;
- param[ iBord ][ iNode ] = bordLength;
- nPrev = nCur;
- }
- // normalize within [0,1]
- for ( iNode = 0; iNode < nbNodes[ iBord ]; iNode++ ) {
- param[ iBord ][ iNode ] /= bordLength;
- }
- }
+//=======================================================================
+/*!
+ * \brief Convert quadratic elements to linear ones and remove quadratic nodes
+ * \return int - nb of checked elements
+ */
+//=======================================================================
- // loop on border segments
- const SMDS_MeshNode *nPrev[ 2 ] = { 0, 0 };
- int i[ 2 ] = { 0, 0 };
- nIt[0] = nSide[0].begin(); eIt[0] = eSide[0].begin();
- nIt[1] = nSide[1].begin(); eIt[1] = eSide[1].begin();
+int SMESH_MeshEditor::removeQuadElem(SMESHDS_SubMesh * theSm,
+ SMDS_ElemIteratorPtr theItr,
+ const int theShapeID)
+{
+ int nbElem = 0;
+ SMESHDS_Mesh* meshDS = GetMeshDS();
- TElemOfNodeListMap insertMap;
- TElemOfNodeListMap::iterator insertMapIt;
- // insertMap is
- // key: elem to insert nodes into
- // value: 2 nodes to insert between + nodes to be inserted
- do {
- bool next[ 2 ] = { false, false };
+ while( theItr->more() )
+ {
+ const SMDS_MeshElement* elem = theItr->next();
+ nbElem++;
+ if( elem && elem->IsQuadratic())
+ {
+ int id = elem->GetID();
+ int nbCornerNodes = elem->NbCornerNodes();
+ SMDSAbs_ElementType aType = elem->GetType();
- // find min adjacent segment length after sewing
- double nextParam = 10., prevParam = 0;
- for ( iBord = 0; iBord < 2; iBord++ ) { // loop on 2 borders
- if ( i[ iBord ] + 1 < nbNodes[ iBord ])
- nextParam = Min( nextParam, param[iBord][ i[iBord] + 1 ]);
- if ( i[ iBord ] > 0 )
- prevParam = Max( prevParam, param[iBord][ i[iBord] - 1 ]);
- }
- double minParam = Min( param[ 0 ][ i[0] ], param[ 1 ][ i[1] ]);
- double maxParam = Max( param[ 0 ][ i[0] ], param[ 1 ][ i[1] ]);
- double minSegLen = Min( nextParam - minParam, maxParam - prevParam );
+ vector<const SMDS_MeshNode *> nodes( elem->begin_nodes(), elem->end_nodes() );
- // choose to insert or to merge nodes
- double du = param[ 1 ][ i[1] ] - param[ 0 ][ i[0] ];
- if ( Abs( du ) <= minSegLen * 0.2 ) {
- // merge
- // ------
- nodeGroupsToMerge.push_back( list<const SMDS_MeshNode*>() );
- const SMDS_MeshNode* n0 = *nIt[0];
- const SMDS_MeshNode* n1 = *nIt[1];
- nodeGroupsToMerge.back().push_back( n1 );
- nodeGroupsToMerge.back().push_back( n0 );
- // position of node of the border changes due to merge
- param[ 0 ][ i[0] ] += du;
- // move n1 for the sake of elem shape evaluation during insertion.
- // n1 will be removed by MergeNodes() anyway
- const_cast<SMDS_MeshNode*>( n0 )->setXYZ( n1->X(), n1->Y(), n1->Z() );
- next[0] = next[1] = true;
- }
- else {
- // insert
- // ------
- int intoBord = ( du < 0 ) ? 0 : 1;
- const SMDS_MeshElement* elem = *eIt[ intoBord ];
- const SMDS_MeshNode* n1 = nPrev[ intoBord ];
- const SMDS_MeshNode* n2 = *nIt[ intoBord ];
- const SMDS_MeshNode* nIns = *nIt[ 1 - intoBord ];
- if ( intoBord == 1 ) {
- // move node of the border to be on a link of elem of the side
- gp_XYZ p1 (n1->X(), n1->Y(), n1->Z());
- gp_XYZ p2 (n2->X(), n2->Y(), n2->Z());
- double ratio = du / ( param[ 1 ][ i[1] ] - param[ 1 ][ i[1]-1 ]);
- gp_XYZ p = p2 * ( 1 - ratio ) + p1 * ratio;
- GetMeshDS()->MoveNode( nIns, p.X(), p.Y(), p.Z() );
- }
- insertMapIt = insertMap.find( elem );
- bool notFound = ( insertMapIt == insertMap.end() );
- bool otherLink = ( !notFound && (*insertMapIt).second.front() != n1 );
- if ( otherLink ) {
- // insert into another link of the same element:
- // 1. perform insertion into the other link of the elem
- list<const SMDS_MeshNode*> & nodeList = (*insertMapIt).second;
- const SMDS_MeshNode* n12 = nodeList.front(); nodeList.pop_front();
- const SMDS_MeshNode* n22 = nodeList.front(); nodeList.pop_front();
- InsertNodesIntoLink( elem, n12, n22, nodeList, toCreatePolygons );
- // 2. perform insertion into the link of adjacent faces
- while (true) {
- const SMDS_MeshElement* adjElem = findAdjacentFace( n12, n22, elem );
- if ( adjElem )
- InsertNodesIntoLink( adjElem, n12, n22, nodeList, toCreatePolygons );
- else
- break;
- }
- if (toCreatePolyedrs) {
- // perform insertion into the links of adjacent volumes
- UpdateVolumes(n12, n22, nodeList);
- }
- // 3. find an element appeared on n1 and n2 after the insertion
- insertMap.erase( elem );
- elem = findAdjacentFace( n1, n2, 0 );
- }
- if ( notFound || otherLink ) {
- // add element and nodes of the side into the insertMap
- insertMapIt = insertMap.insert
- ( TElemOfNodeListMap::value_type( elem, list<const SMDS_MeshNode*>() )).first;
- (*insertMapIt).second.push_back( n1 );
- (*insertMapIt).second.push_back( n2 );
- }
- // add node to be inserted into elem
- (*insertMapIt).second.push_back( nIns );
- next[ 1 - intoBord ] = true;
- }
+ //remove a quadratic element
+ if ( !theSm || !theSm->Contains( elem ))
+ theSm = meshDS->MeshElements( elem->getshapeId() );
+ meshDS->RemoveFreeElement( elem, theSm, /*fromGroups=*/false );
- // go to the next segment
- for ( iBord = 0; iBord < 2; iBord++ ) { // loop on 2 borders
- if ( next[ iBord ] ) {
- if ( i[ iBord ] != 0 && eIt[ iBord ] != eSide[ iBord ].end())
- eIt[ iBord ]++;
- nPrev[ iBord ] = *nIt[ iBord ];
- nIt[ iBord ]++; i[ iBord ]++;
- }
+ // remove medium nodes
+ for ( unsigned i = nbCornerNodes; i < nodes.size(); ++i )
+ if ( nodes[i]->NbInverseElements() == 0 )
+ meshDS->RemoveFreeNode( nodes[i], theSm );
+
+ // add a linear element
+ nodes.resize( nbCornerNodes );
+ SMDS_MeshElement * newElem = AddElement( nodes, aType, false, id );
+ ReplaceElemInGroups(elem, newElem, meshDS);
+ if( theSm && newElem )
+ theSm->AddElement( newElem );
+ }
+ }
+ return nbElem;
+}
+
+//=======================================================================
+//function : ConvertFromQuadratic
+//purpose :
+//=======================================================================
+
+bool SMESH_MeshEditor::ConvertFromQuadratic()
+{
+ int nbCheckedElems = 0;
+ if ( myMesh->HasShapeToMesh() )
+ {
+ if ( SMESH_subMesh *aSubMesh = myMesh->GetSubMeshContaining(myMesh->GetShapeToMesh()))
+ {
+ SMESH_subMeshIteratorPtr smIt = aSubMesh->getDependsOnIterator(true,false);
+ while ( smIt->more() ) {
+ SMESH_subMesh* sm = smIt->next();
+ if ( SMESHDS_SubMesh *smDS = sm->GetSubMeshDS() )
+ nbCheckedElems += removeQuadElem( smDS, smDS->GetElements(), sm->GetId() );
}
}
- while ( nIt[0] != nSide[0].end() && nIt[1] != nSide[1].end());
+ }
- // perform insertion of nodes into elements
+ int totalNbElems =
+ GetMeshDS()->NbEdges() + GetMeshDS()->NbFaces() + GetMeshDS()->NbVolumes();
+ if ( nbCheckedElems < totalNbElems ) // not all elements are in submeshes
+ {
+ SMESHDS_SubMesh *aSM = 0;
+ removeQuadElem( aSM, GetMeshDS()->elementsIterator(), 0 );
+ }
- for (insertMapIt = insertMap.begin();
- insertMapIt != insertMap.end();
- insertMapIt++ )
- {
- const SMDS_MeshElement* elem = (*insertMapIt).first;
- list<const SMDS_MeshNode*> & nodeList = (*insertMapIt).second;
- const SMDS_MeshNode* n1 = nodeList.front(); nodeList.pop_front();
- const SMDS_MeshNode* n2 = nodeList.front(); nodeList.pop_front();
+ return true;
+}
- InsertNodesIntoLink( elem, n1, n2, nodeList, toCreatePolygons );
+namespace
+{
+ //================================================================================
+ /*!
+ * \brief Return true if all medium nodes of the element are in the node set
+ */
+ //================================================================================
- if ( !theSideIsFreeBorder ) {
- // look for and insert nodes into the faces adjacent to elem
- while (true) {
- const SMDS_MeshElement* adjElem = findAdjacentFace( n1, n2, elem );
- if ( adjElem )
- InsertNodesIntoLink( adjElem, n1, n2, nodeList, toCreatePolygons );
- else
- break;
- }
- }
- if (toCreatePolyedrs) {
- // perform insertion into the links of adjacent volumes
- UpdateVolumes(n1, n2, nodeList);
- }
- }
+ bool allMediumNodesIn(const SMDS_MeshElement* elem, TIDSortedNodeSet& nodeSet )
+ {
+ for ( int i = elem->NbCornerNodes(); i < elem->NbNodes(); ++i )
+ if ( !nodeSet.count( elem->GetNode(i) ))
+ return false;
+ return true;
+ }
+}
- delete param[0];
- delete param[1];
- } // end: insert new nodes
+//================================================================================
+/*!
+ * \brief Makes given elements linear
+ */
+//================================================================================
- MergeNodes ( nodeGroupsToMerge );
+void SMESH_MeshEditor::ConvertFromQuadratic(TIDSortedElemSet& theElements)
+{
+ if ( theElements.empty() ) return;
- return aResult;
+ // collect IDs of medium nodes of theElements; some of these nodes will be removed
+ set<int> mediumNodeIDs;
+ TIDSortedElemSet::iterator eIt = theElements.begin();
+ for ( ; eIt != theElements.end(); ++eIt )
+ {
+ const SMDS_MeshElement* e = *eIt;
+ for ( int i = e->NbCornerNodes(); i < e->NbNodes(); ++i )
+ mediumNodeIDs.insert( e->GetNode(i)->GetID() );
+ }
+
+ // replace given elements by linear ones
+ typedef SMDS_SetIterator<const SMDS_MeshElement*, TIDSortedElemSet::iterator> TSetIterator;
+ SMDS_ElemIteratorPtr elemIt( new TSetIterator( theElements.begin(), theElements.end() ));
+ removeQuadElem( /*theSm=*/0, elemIt, /*theShapeID=*/0 );
+
+ // we need to convert remaining elements whose all medium nodes are in mediumNodeIDs
+ // except those elements sharing medium nodes of quadratic element whose medium nodes
+ // are not all in mediumNodeIDs
+
+ // get remaining medium nodes
+ TIDSortedNodeSet mediumNodes;
+ set<int>::iterator nIdsIt = mediumNodeIDs.begin();
+ for ( ; nIdsIt != mediumNodeIDs.end(); ++nIdsIt )
+ if ( const SMDS_MeshNode* n = GetMeshDS()->FindNode( *nIdsIt ))
+ mediumNodes.insert( mediumNodes.end(), n );
+
+ // find more quadratic elements to convert
+ TIDSortedElemSet moreElemsToConvert;
+ TIDSortedNodeSet::iterator nIt = mediumNodes.begin();
+ for ( ; nIt != mediumNodes.end(); ++nIt )
+ {
+ SMDS_ElemIteratorPtr invIt = (*nIt)->GetInverseElementIterator();
+ while ( invIt->more() )
+ {
+ const SMDS_MeshElement* e = invIt->next();
+ if ( e->IsQuadratic() && allMediumNodesIn( e, mediumNodes ))
+ {
+ // find a more complex element including e and
+ // whose medium nodes are not in mediumNodes
+ bool complexFound = false;
+ for ( int type = e->GetType() + 1; type < SMDSAbs_0DElement; ++type )
+ {
+ SMDS_ElemIteratorPtr invIt2 =
+ (*nIt)->GetInverseElementIterator( SMDSAbs_ElementType( type ));
+ while ( invIt2->more() )
+ {
+ const SMDS_MeshElement* eComplex = invIt2->next();
+ if ( eComplex->IsQuadratic() && !allMediumNodesIn( eComplex, mediumNodes))
+ {
+ int nbCommonNodes = SMESH_Algo::GetCommonNodes( e, eComplex ).size();
+ if ( nbCommonNodes == e->NbNodes())
+ {
+ complexFound = true;
+ type = SMDSAbs_NbElementTypes; // to quit from the outer loop
+ break;
+ }
+ }
+ }
+ }
+ if ( !complexFound )
+ moreElemsToConvert.insert( e );
+ }
+ }
+ }
+ elemIt = SMDS_ElemIteratorPtr
+ (new TSetIterator( moreElemsToConvert.begin(), moreElemsToConvert.end() ));
+ removeQuadElem( /*theSm=*/0, elemIt, /*theShapeID=*/0 );
}
//=======================================================================
-//function : InsertNodesIntoLink
-//purpose : insert theNodesToInsert into theFace between theBetweenNode1
-// and theBetweenNode2 and split theElement
+//function : SewSideElements
+//purpose :
//=======================================================================
-void SMESH_MeshEditor::InsertNodesIntoLink(const SMDS_MeshElement* theFace,
- const SMDS_MeshNode* theBetweenNode1,
- const SMDS_MeshNode* theBetweenNode2,
- list<const SMDS_MeshNode*>& theNodesToInsert,
- const bool toCreatePoly)
+SMESH_MeshEditor::Sew_Error
+SMESH_MeshEditor::SewSideElements (TIDSortedElemSet& theSide1,
+ TIDSortedElemSet& theSide2,
+ const SMDS_MeshNode* theFirstNode1,
+ const SMDS_MeshNode* theFirstNode2,
+ const SMDS_MeshNode* theSecondNode1,
+ const SMDS_MeshNode* theSecondNode2)
{
- if ( theFace->GetType() != SMDSAbs_Face ) return;
+ myLastCreatedElems.Clear();
+ myLastCreatedNodes.Clear();
- // find indices of 2 link nodes and of the rest nodes
- int iNode = 0, il1, il2, i3, i4;
- il1 = il2 = i3 = i4 = -1;
- //const SMDS_MeshNode* nodes[ theFace->NbNodes() ];
- vector<const SMDS_MeshNode*> nodes( theFace->NbNodes() );
+ MESSAGE ("::::SewSideElements()");
+ if ( theSide1.size() != theSide2.size() )
+ return SEW_DIFF_NB_OF_ELEMENTS;
+
+ Sew_Error aResult = SEW_OK;
+ // Algo:
+ // 1. Build set of faces representing each side
+ // 2. Find which nodes of the side 1 to merge with ones on the side 2
+ // 3. Replace nodes in elements of the side 1 and remove replaced nodes
+
+ // =======================================================================
+ // 1. Build set of faces representing each side:
+ // =======================================================================
+ // a. build set of nodes belonging to faces
+ // b. complete set of faces: find missing faces whose nodes are in set of nodes
+ // c. create temporary faces representing side of volumes if correspondent
+ // face does not exist
+
+ SMESHDS_Mesh* aMesh = GetMeshDS();
+ // TODO algoritm not OK with vtkUnstructuredGrid: 2 meshes can't share nodes
+ //SMDS_Mesh aTmpFacesMesh; // try to use the same mesh
+ set<const SMDS_MeshElement*> faceSet1, faceSet2;
+ set<const SMDS_MeshElement*> volSet1, volSet2;
+ set<const SMDS_MeshNode*> nodeSet1, nodeSet2;
+ set<const SMDS_MeshElement*> * faceSetPtr[] = { &faceSet1, &faceSet2 };
+ set<const SMDS_MeshElement*> * volSetPtr[] = { &volSet1, &volSet2 };
+ set<const SMDS_MeshNode*> * nodeSetPtr[] = { &nodeSet1, &nodeSet2 };
+ TIDSortedElemSet * elemSetPtr[] = { &theSide1, &theSide2 };
+ int iSide, iFace, iNode;
+
+ list<const SMDS_MeshElement* > tempFaceList;
+ for ( iSide = 0; iSide < 2; iSide++ ) {
+ set<const SMDS_MeshNode*> * nodeSet = nodeSetPtr[ iSide ];
+ TIDSortedElemSet * elemSet = elemSetPtr[ iSide ];
+ set<const SMDS_MeshElement*> * faceSet = faceSetPtr[ iSide ];
+ set<const SMDS_MeshElement*> * volSet = volSetPtr [ iSide ];
+ set<const SMDS_MeshElement*>::iterator vIt;
+ TIDSortedElemSet::iterator eIt;
+ set<const SMDS_MeshNode*>::iterator nIt;
+
+ // check that given nodes belong to given elements
+ const SMDS_MeshNode* n1 = ( iSide == 0 ) ? theFirstNode1 : theFirstNode2;
+ const SMDS_MeshNode* n2 = ( iSide == 0 ) ? theSecondNode1 : theSecondNode2;
+ int firstIndex = -1, secondIndex = -1;
+ for (eIt = elemSet->begin(); eIt != elemSet->end(); eIt++ ) {
+ const SMDS_MeshElement* elem = *eIt;
+ if ( firstIndex < 0 ) firstIndex = elem->GetNodeIndex( n1 );
+ if ( secondIndex < 0 ) secondIndex = elem->GetNodeIndex( n2 );
+ if ( firstIndex > -1 && secondIndex > -1 ) break;
+ }
+ if ( firstIndex < 0 || secondIndex < 0 ) {
+ // we can simply return until temporary faces created
+ return (iSide == 0 ) ? SEW_BAD_SIDE1_NODES : SEW_BAD_SIDE2_NODES;
+ }
+
+ // -----------------------------------------------------------
+ // 1a. Collect nodes of existing faces
+ // and build set of face nodes in order to detect missing
+ // faces corresponding to sides of volumes
+ // -----------------------------------------------------------
+
+ set< set <const SMDS_MeshNode*> > setOfFaceNodeSet;
+
+ // loop on the given element of a side
+ for (eIt = elemSet->begin(); eIt != elemSet->end(); eIt++ ) {
+ //const SMDS_MeshElement* elem = *eIt;
+ const SMDS_MeshElement* elem = *eIt;
+ if ( elem->GetType() == SMDSAbs_Face ) {
+ faceSet->insert( elem );
+ set <const SMDS_MeshNode*> faceNodeSet;
+ SMDS_ElemIteratorPtr nodeIt = elem->nodesIterator();
+ while ( nodeIt->more() ) {
+ const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
+ nodeSet->insert( n );
+ faceNodeSet.insert( n );
+ }
+ setOfFaceNodeSet.insert( faceNodeSet );
+ }
+ else if ( elem->GetType() == SMDSAbs_Volume )
+ volSet->insert( elem );
+ }
+ // ------------------------------------------------------------------------------
+ // 1b. Complete set of faces: find missing faces whose nodes are in set of nodes
+ // ------------------------------------------------------------------------------
+
+ for ( nIt = nodeSet->begin(); nIt != nodeSet->end(); nIt++ ) { // loop on nodes of iSide
+ SMDS_ElemIteratorPtr fIt = (*nIt)->GetInverseElementIterator(SMDSAbs_Face);
+ while ( fIt->more() ) { // loop on faces sharing a node
+ const SMDS_MeshElement* f = fIt->next();
+ if ( faceSet->find( f ) == faceSet->end() ) {
+ // check if all nodes are in nodeSet and
+ // complete setOfFaceNodeSet if they are
+ set <const SMDS_MeshNode*> faceNodeSet;
+ SMDS_ElemIteratorPtr nodeIt = f->nodesIterator();
+ bool allInSet = true;
+ while ( nodeIt->more() && allInSet ) { // loop on nodes of a face
+ const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
+ if ( nodeSet->find( n ) == nodeSet->end() )
+ allInSet = false;
+ else
+ faceNodeSet.insert( n );
+ }
+ if ( allInSet ) {
+ faceSet->insert( f );
+ setOfFaceNodeSet.insert( faceNodeSet );
+ }
+ }
+ }
+ }
+
+ // -------------------------------------------------------------------------
+ // 1c. Create temporary faces representing sides of volumes if correspondent
+ // face does not exist
+ // -------------------------------------------------------------------------
+
+ if ( !volSet->empty() ) {
+ //int nodeSetSize = nodeSet->size();
+
+ // loop on given volumes
+ for ( vIt = volSet->begin(); vIt != volSet->end(); vIt++ ) {
+ SMDS_VolumeTool vol (*vIt);
+ // loop on volume faces: find free faces
+ // --------------------------------------
+ list<const SMDS_MeshElement* > freeFaceList;
+ for ( iFace = 0; iFace < vol.NbFaces(); iFace++ ) {
+ if ( !vol.IsFreeFace( iFace ))
+ continue;
+ // check if there is already a face with same nodes in a face set
+ const SMDS_MeshElement* aFreeFace = 0;
+ const SMDS_MeshNode** fNodes = vol.GetFaceNodes( iFace );
+ int nbNodes = vol.NbFaceNodes( iFace );
+ set <const SMDS_MeshNode*> faceNodeSet;
+ vol.GetFaceNodes( iFace, faceNodeSet );
+ bool isNewFace = setOfFaceNodeSet.insert( faceNodeSet ).second;
+ if ( isNewFace ) {
+ // no such a face is given but it still can exist, check it
+ if ( nbNodes == 3 ) {
+ aFreeFace = aMesh->FindFace( fNodes[0],fNodes[1],fNodes[2] );
+ }
+ else if ( nbNodes == 4 ) {
+ aFreeFace = aMesh->FindFace( fNodes[0],fNodes[1],fNodes[2],fNodes[3] );
+ }
+ else {
+ vector<const SMDS_MeshNode *> poly_nodes ( fNodes, & fNodes[nbNodes]);
+ aFreeFace = aMesh->FindFace(poly_nodes);
+ }
+ }
+ if ( !aFreeFace ) {
+ // create a temporary face
+ if ( nbNodes == 3 ) {
+ //aFreeFace = aTmpFacesMesh.AddFace( fNodes[0],fNodes[1],fNodes[2] );
+ aFreeFace = aMesh->AddFace( fNodes[0],fNodes[1],fNodes[2] );
+ }
+ else if ( nbNodes == 4 ) {
+ //aFreeFace = aTmpFacesMesh.AddFace( fNodes[0],fNodes[1],fNodes[2],fNodes[3] );
+ aFreeFace = aMesh->AddFace( fNodes[0],fNodes[1],fNodes[2],fNodes[3] );
+ }
+ else {
+ vector<const SMDS_MeshNode *> poly_nodes ( fNodes, & fNodes[nbNodes]);
+ //aFreeFace = aTmpFacesMesh.AddPolygonalFace(poly_nodes);
+ aFreeFace = aMesh->AddPolygonalFace(poly_nodes);
+ }
+ }
+ if ( aFreeFace ) {
+ freeFaceList.push_back( aFreeFace );
+ tempFaceList.push_back( aFreeFace );
+ }
- if(theFace->IsQuadratic()) {
- const SMDS_QuadraticFaceOfNodes* F =
- static_cast<const SMDS_QuadraticFaceOfNodes*>(theFace);
- // use special nodes iterator
- SMDS_NodeIteratorPtr anIter = F->interlacedNodesIterator();
- while( anIter->more() ) {
- const SMDS_MeshNode* n = anIter->next();
- if ( n == theBetweenNode1 )
- il1 = iNode;
- else if ( n == theBetweenNode2 )
- il2 = iNode;
- else if ( i3 < 0 )
- i3 = iNode;
- else
- i4 = iNode;
- nodes[ iNode++ ] = n;
- }
- }
- else {
- SMDS_ElemIteratorPtr nodeIt = theFace->nodesIterator();
- while ( nodeIt->more() ) {
- const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
- if ( n == theBetweenNode1 )
- il1 = iNode;
- else if ( n == theBetweenNode2 )
- il2 = iNode;
- else if ( i3 < 0 )
- i3 = iNode;
- else
- i4 = iNode;
- nodes[ iNode++ ] = n;
- }
- }
- if ( il1 < 0 || il2 < 0 || i3 < 0 )
- return ;
+ } // loop on faces of a volume
- // arrange link nodes to go one after another regarding the face orientation
- bool reverse = ( Abs( il2 - il1 ) == 1 ? il2 < il1 : il1 < il2 );
- list<const SMDS_MeshNode *> aNodesToInsert = theNodesToInsert;
- if ( reverse ) {
- iNode = il1;
- il1 = il2;
- il2 = iNode;
- aNodesToInsert.reverse();
- }
- // check that not link nodes of a quadrangles are in good order
- int nbFaceNodes = theFace->NbNodes();
- if ( nbFaceNodes == 4 && i4 - i3 != 1 ) {
- iNode = i3;
- i3 = i4;
- i4 = iNode;
- }
+ // choose one of several free faces
+ // --------------------------------------
+ if ( freeFaceList.size() > 1 ) {
+ // choose a face having max nb of nodes shared by other elems of a side
+ int maxNbNodes = -1/*, nbExcludedFaces = 0*/;
+ list<const SMDS_MeshElement* >::iterator fIt = freeFaceList.begin();
+ while ( fIt != freeFaceList.end() ) { // loop on free faces
+ int nbSharedNodes = 0;
+ SMDS_ElemIteratorPtr nodeIt = (*fIt)->nodesIterator();
+ while ( nodeIt->more() ) { // loop on free face nodes
+ const SMDS_MeshNode* n =
+ static_cast<const SMDS_MeshNode*>( nodeIt->next() );
+ SMDS_ElemIteratorPtr invElemIt = n->GetInverseElementIterator();
+ while ( invElemIt->more() ) {
+ const SMDS_MeshElement* e = invElemIt->next();
+ if ( faceSet->find( e ) != faceSet->end() )
+ nbSharedNodes++;
+ if ( elemSet->find( e ) != elemSet->end() )
+ nbSharedNodes++;
+ }
+ }
+ if ( nbSharedNodes >= maxNbNodes ) {
+ maxNbNodes = nbSharedNodes;
+ fIt++;
+ }
+ else
+ freeFaceList.erase( fIt++ ); // here fIt++ occurs before erase
+ }
+ if ( freeFaceList.size() > 1 )
+ {
+ // could not choose one face, use another way
+ // choose a face most close to the bary center of the opposite side
+ gp_XYZ aBC( 0., 0., 0. );
+ set <const SMDS_MeshNode*> addedNodes;
+ TIDSortedElemSet * elemSet2 = elemSetPtr[ 1 - iSide ];
+ eIt = elemSet2->begin();
+ for ( eIt = elemSet2->begin(); eIt != elemSet2->end(); eIt++ ) {
+ SMDS_ElemIteratorPtr nodeIt = (*eIt)->nodesIterator();
+ while ( nodeIt->more() ) { // loop on free face nodes
+ const SMDS_MeshNode* n =
+ static_cast<const SMDS_MeshNode*>( nodeIt->next() );
+ if ( addedNodes.insert( n ).second )
+ aBC += gp_XYZ( n->X(),n->Y(),n->Z() );
+ }
+ }
+ aBC /= addedNodes.size();
+ double minDist = DBL_MAX;
+ fIt = freeFaceList.begin();
+ while ( fIt != freeFaceList.end() ) { // loop on free faces
+ double dist = 0;
+ SMDS_ElemIteratorPtr nodeIt = (*fIt)->nodesIterator();
+ while ( nodeIt->more() ) { // loop on free face nodes
+ const SMDS_MeshNode* n =
+ static_cast<const SMDS_MeshNode*>( nodeIt->next() );
+ gp_XYZ p( n->X(),n->Y(),n->Z() );
+ dist += ( aBC - p ).SquareModulus();
+ }
+ if ( dist < minDist ) {
+ minDist = dist;
+ freeFaceList.erase( freeFaceList.begin(), fIt++ );
+ }
+ else
+ fIt = freeFaceList.erase( fIt++ );
+ }
+ }
+ } // choose one of several free faces of a volume
- if (toCreatePoly || theFace->IsPoly()) {
+ if ( freeFaceList.size() == 1 ) {
+ const SMDS_MeshElement* aFreeFace = freeFaceList.front();
+ faceSet->insert( aFreeFace );
+ // complete a node set with nodes of a found free face
+ // for ( iNode = 0; iNode < ; iNode++ )
+ // nodeSet->insert( fNodes[ iNode ] );
+ }
- iNode = 0;
- vector<const SMDS_MeshNode *> poly_nodes (nbFaceNodes + aNodesToInsert.size());
+ } // loop on volumes of a side
- // add nodes of face up to first node of link
- bool isFLN = false;
+ // // complete a set of faces if new nodes in a nodeSet appeared
+ // // ----------------------------------------------------------
+ // if ( nodeSetSize != nodeSet->size() ) {
+ // for ( ; nIt != nodeSet->end(); nIt++ ) { // loop on nodes of iSide
+ // SMDS_ElemIteratorPtr fIt = (*nIt)->GetInverseElementIterator(SMDSAbs_Face);
+ // while ( fIt->more() ) { // loop on faces sharing a node
+ // const SMDS_MeshElement* f = fIt->next();
+ // if ( faceSet->find( f ) == faceSet->end() ) {
+ // // check if all nodes are in nodeSet and
+ // // complete setOfFaceNodeSet if they are
+ // set <const SMDS_MeshNode*> faceNodeSet;
+ // SMDS_ElemIteratorPtr nodeIt = f->nodesIterator();
+ // bool allInSet = true;
+ // while ( nodeIt->more() && allInSet ) { // loop on nodes of a face
+ // const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
+ // if ( nodeSet->find( n ) == nodeSet->end() )
+ // allInSet = false;
+ // else
+ // faceNodeSet.insert( n );
+ // }
+ // if ( allInSet ) {
+ // faceSet->insert( f );
+ // setOfFaceNodeSet.insert( faceNodeSet );
+ // }
+ // }
+ // }
+ // }
+ // }
+ } // Create temporary faces, if there are volumes given
+ } // loop on sides
- if(theFace->IsQuadratic()) {
- const SMDS_QuadraticFaceOfNodes* F =
- static_cast<const SMDS_QuadraticFaceOfNodes*>(theFace);
- // use special nodes iterator
- SMDS_NodeIteratorPtr anIter = F->interlacedNodesIterator();
- while( anIter->more() && !isFLN ) {
- const SMDS_MeshNode* n = anIter->next();
- poly_nodes[iNode++] = n;
- if (n == nodes[il1]) {
- isFLN = true;
- }
- }
- // add nodes to insert
- list<const SMDS_MeshNode*>::iterator nIt = aNodesToInsert.begin();
- for (; nIt != aNodesToInsert.end(); nIt++) {
- poly_nodes[iNode++] = *nIt;
- }
- // add nodes of face starting from last node of link
- while ( anIter->more() ) {
- poly_nodes[iNode++] = anIter->next();
- }
- }
- else {
- SMDS_ElemIteratorPtr nodeIt = theFace->nodesIterator();
- while ( nodeIt->more() && !isFLN ) {
- const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
- poly_nodes[iNode++] = n;
- if (n == nodes[il1]) {
- isFLN = true;
- }
- }
- // add nodes to insert
- list<const SMDS_MeshNode*>::iterator nIt = aNodesToInsert.begin();
- for (; nIt != aNodesToInsert.end(); nIt++) {
- poly_nodes[iNode++] = *nIt;
- }
- // add nodes of face starting from last node of link
- while ( nodeIt->more() ) {
- const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
- poly_nodes[iNode++] = n;
- }
- }
+ if ( faceSet1.size() != faceSet2.size() ) {
+ // delete temporary faces: they are in reverseElements of actual nodes
+// SMDS_FaceIteratorPtr tmpFaceIt = aTmpFacesMesh.facesIterator();
+// while ( tmpFaceIt->more() )
+// aTmpFacesMesh.RemoveElement( tmpFaceIt->next() );
+// list<const SMDS_MeshElement* >::iterator tmpFaceIt = tempFaceList.begin();
+// for (; tmpFaceIt !=tempFaceList.end(); ++tmpFaceIt)
+// aMesh->RemoveElement(*tmpFaceIt);
+ MESSAGE("Diff nb of faces");
+ return SEW_TOPO_DIFF_SETS_OF_ELEMENTS;
+ }
- // edit or replace the face
- SMESHDS_Mesh *aMesh = GetMeshDS();
+ // ============================================================
+ // 2. Find nodes to merge:
+ // bind a node to remove to a node to put instead
+ // ============================================================
- if (theFace->IsPoly()) {
- aMesh->ChangePolygonNodes(theFace, poly_nodes);
- }
- else {
- int aShapeId = FindShape( theFace );
+ TNodeNodeMap nReplaceMap; // bind a node to remove to a node to put instead
+ if ( theFirstNode1 != theFirstNode2 )
+ nReplaceMap.insert( TNodeNodeMap::value_type( theFirstNode1, theFirstNode2 ));
+ if ( theSecondNode1 != theSecondNode2 )
+ nReplaceMap.insert( TNodeNodeMap::value_type( theSecondNode1, theSecondNode2 ));
- SMDS_MeshElement* newElem = aMesh->AddPolygonalFace(poly_nodes);
- myLastCreatedElems.Append(newElem);
- if ( aShapeId && newElem )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ LinkID_Gen aLinkID_Gen( GetMeshDS() );
+ set< long > linkIdSet; // links to process
+ linkIdSet.insert( aLinkID_Gen.GetLinkID( theFirstNode1, theSecondNode1 ));
- aMesh->RemoveElement(theFace);
- }
- return;
- }
+ typedef pair< const SMDS_MeshNode*, const SMDS_MeshNode* > NLink;
+ list< NLink > linkList[2];
+ linkList[0].push_back( NLink( theFirstNode1, theSecondNode1 ));
+ linkList[1].push_back( NLink( theFirstNode2, theSecondNode2 ));
+ // loop on links in linkList; find faces by links and append links
+ // of the found faces to linkList
+ list< NLink >::iterator linkIt[] = { linkList[0].begin(), linkList[1].begin() } ;
+ for ( ; linkIt[0] != linkList[0].end(); linkIt[0]++, linkIt[1]++ ) {
+ NLink link[] = { *linkIt[0], *linkIt[1] };
+ long linkID = aLinkID_Gen.GetLinkID( link[0].first, link[0].second );
+ if ( linkIdSet.find( linkID ) == linkIdSet.end() )
+ continue;
- if( !theFace->IsQuadratic() ) {
+ // by links, find faces in the face sets,
+ // and find indices of link nodes in the found faces;
+ // in a face set, there is only one or no face sharing a link
+ // ---------------------------------------------------------------
- // put aNodesToInsert between theBetweenNode1 and theBetweenNode2
- int nbLinkNodes = 2 + aNodesToInsert.size();
- //const SMDS_MeshNode* linkNodes[ nbLinkNodes ];
- vector<const SMDS_MeshNode*> linkNodes( nbLinkNodes );
- linkNodes[ 0 ] = nodes[ il1 ];
- linkNodes[ nbLinkNodes - 1 ] = nodes[ il2 ];
- list<const SMDS_MeshNode*>::iterator nIt = aNodesToInsert.begin();
- for ( iNode = 1; nIt != aNodesToInsert.end(); nIt++ ) {
- linkNodes[ iNode++ ] = *nIt;
- }
- // decide how to split a quadrangle: compare possible variants
- // and choose which of splits to be a quadrangle
- int i1, i2, iSplit, nbSplits = nbLinkNodes - 1, iBestQuad;
- if ( nbFaceNodes == 3 ) {
- iBestQuad = nbSplits;
- i4 = i3;
- }
- else if ( nbFaceNodes == 4 ) {
- SMESH::Controls::NumericalFunctorPtr aCrit( new SMESH::Controls::AspectRatio);
- double aBestRate = DBL_MAX;
- for ( int iQuad = 0; iQuad < nbSplits; iQuad++ ) {
- i1 = 0; i2 = 1;
- double aBadRate = 0;
- // evaluate elements quality
- for ( iSplit = 0; iSplit < nbSplits; iSplit++ ) {
- if ( iSplit == iQuad ) {
- SMDS_FaceOfNodes quad (linkNodes[ i1++ ],
- linkNodes[ i2++ ],
- nodes[ i3 ],
- nodes[ i4 ]);
- aBadRate += getBadRate( &quad, aCrit );
- }
- else {
- SMDS_FaceOfNodes tria (linkNodes[ i1++ ],
- linkNodes[ i2++ ],
- nodes[ iSplit < iQuad ? i4 : i3 ]);
- aBadRate += getBadRate( &tria, aCrit );
+ const SMDS_MeshElement* face[] = { 0, 0 };
+ //const SMDS_MeshNode* faceNodes[ 2 ][ 5 ];
+ vector<const SMDS_MeshNode*> fnodes1(9);
+ vector<const SMDS_MeshNode*> fnodes2(9);
+ //const SMDS_MeshNode* notLinkNodes[ 2 ][ 2 ] = {{ 0, 0 },{ 0, 0 }} ;
+ vector<const SMDS_MeshNode*> notLinkNodes1(6);
+ vector<const SMDS_MeshNode*> notLinkNodes2(6);
+ int iLinkNode[2][2];
+ for ( iSide = 0; iSide < 2; iSide++ ) { // loop on 2 sides
+ const SMDS_MeshNode* n1 = link[iSide].first;
+ const SMDS_MeshNode* n2 = link[iSide].second;
+ set<const SMDS_MeshElement*> * faceSet = faceSetPtr[ iSide ];
+ set< const SMDS_MeshElement* > fMap;
+ for ( int i = 0; i < 2; i++ ) { // loop on 2 nodes of a link
+ const SMDS_MeshNode* n = i ? n1 : n2; // a node of a link
+ SMDS_ElemIteratorPtr fIt = n->GetInverseElementIterator(SMDSAbs_Face);
+ while ( fIt->more() ) { // loop on faces sharing a node
+ const SMDS_MeshElement* f = fIt->next();
+ if (faceSet->find( f ) != faceSet->end() && // f is in face set
+ ! fMap.insert( f ).second ) // f encounters twice
+ {
+ if ( face[ iSide ] ) {
+ MESSAGE( "2 faces per link " );
+ aResult = iSide ? SEW_BAD_SIDE2_NODES : SEW_BAD_SIDE1_NODES;
+ break;
+ }
+ face[ iSide ] = f;
+ faceSet->erase( f );
+ // get face nodes and find ones of a link
+ iNode = 0;
+ int nbl = -1;
+ if(f->IsPoly()) {
+ if(iSide==0) {
+ fnodes1.resize(f->NbNodes()+1);
+ notLinkNodes1.resize(f->NbNodes()-2);
+ }
+ else {
+ fnodes2.resize(f->NbNodes()+1);
+ notLinkNodes2.resize(f->NbNodes()-2);
+ }
+ }
+ if(!f->IsQuadratic()) {
+ SMDS_ElemIteratorPtr nIt = f->nodesIterator();
+ while ( nIt->more() ) {
+ const SMDS_MeshNode* n =
+ static_cast<const SMDS_MeshNode*>( nIt->next() );
+ if ( n == n1 ) {
+ iLinkNode[ iSide ][ 0 ] = iNode;
+ }
+ else if ( n == n2 ) {
+ iLinkNode[ iSide ][ 1 ] = iNode;
+ }
+ //else if ( notLinkNodes[ iSide ][ 0 ] )
+ // notLinkNodes[ iSide ][ 1 ] = n;
+ //else
+ // notLinkNodes[ iSide ][ 0 ] = n;
+ else {
+ nbl++;
+ if(iSide==0)
+ notLinkNodes1[nbl] = n;
+ //notLinkNodes1.push_back(n);
+ else
+ notLinkNodes2[nbl] = n;
+ //notLinkNodes2.push_back(n);
+ }
+ //faceNodes[ iSide ][ iNode++ ] = n;
+ if(iSide==0) {
+ fnodes1[iNode++] = n;
+ }
+ else {
+ fnodes2[iNode++] = n;
+ }
+ }
+ }
+ else { // f->IsQuadratic()
+ const SMDS_VtkFace* F =
+ dynamic_cast<const SMDS_VtkFace*>(f);
+ if (!F) throw SALOME_Exception(LOCALIZED("not an SMDS_VtkFace"));
+ // use special nodes iterator
+ SMDS_ElemIteratorPtr anIter = F->interlacedNodesElemIterator();
+ while ( anIter->more() ) {
+ const SMDS_MeshNode* n =
+ static_cast<const SMDS_MeshNode*>( anIter->next() );
+ if ( n == n1 ) {
+ iLinkNode[ iSide ][ 0 ] = iNode;
+ }
+ else if ( n == n2 ) {
+ iLinkNode[ iSide ][ 1 ] = iNode;
+ }
+ else {
+ nbl++;
+ if(iSide==0) {
+ notLinkNodes1[nbl] = n;
+ }
+ else {
+ notLinkNodes2[nbl] = n;
+ }
+ }
+ if(iSide==0) {
+ fnodes1[iNode++] = n;
+ }
+ else {
+ fnodes2[iNode++] = n;
+ }
+ }
+ }
+ //faceNodes[ iSide ][ iNode ] = faceNodes[ iSide ][ 0 ];
+ if(iSide==0) {
+ fnodes1[iNode] = fnodes1[0];
+ }
+ else {
+ fnodes2[iNode] = fnodes1[0];
+ }
}
}
- // choice
- if ( aBadRate < aBestRate ) {
- iBestQuad = iQuad;
- aBestRate = aBadRate;
- }
}
}
- // create new elements
- SMESHDS_Mesh *aMesh = GetMeshDS();
- int aShapeId = FindShape( theFace );
-
- i1 = 0; i2 = 1;
- for ( iSplit = 0; iSplit < nbSplits - 1; iSplit++ ) {
- SMDS_MeshElement* newElem = 0;
- if ( iSplit == iBestQuad )
- newElem = aMesh->AddFace (linkNodes[ i1++ ],
- linkNodes[ i2++ ],
- nodes[ i3 ],
- nodes[ i4 ]);
- else
- newElem = aMesh->AddFace (linkNodes[ i1++ ],
- linkNodes[ i2++ ],
- nodes[ iSplit < iBestQuad ? i4 : i3 ]);
- myLastCreatedElems.Append(newElem);
- if ( aShapeId && newElem )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
- }
-
- // change nodes of theFace
- const SMDS_MeshNode* newNodes[ 4 ];
- newNodes[ 0 ] = linkNodes[ i1 ];
- newNodes[ 1 ] = linkNodes[ i2 ];
- newNodes[ 2 ] = nodes[ iSplit >= iBestQuad ? i3 : i4 ];
- newNodes[ 3 ] = nodes[ i4 ];
- aMesh->ChangeElementNodes( theFace, newNodes, iSplit == iBestQuad ? 4 : 3 );
- } // end if(!theFace->IsQuadratic())
- else { // theFace is quadratic
- // we have to split theFace on simple triangles and one simple quadrangle
- int tmp = il1/2;
- int nbshift = tmp*2;
- // shift nodes in nodes[] by nbshift
- int i,j;
- for(i=0; i<nbshift; i++) {
- const SMDS_MeshNode* n = nodes[0];
- for(j=0; j<nbFaceNodes-1; j++) {
- nodes[j] = nodes[j+1];
+ // check similarity of elements of the sides
+ if (aResult == SEW_OK && (( face[0] && !face[1] ) || ( !face[0] && face[1] ))) {
+ MESSAGE("Correspondent face not found on side " << ( face[0] ? 1 : 0 ));
+ if ( nReplaceMap.size() == 2 ) { // faces on input nodes not found
+ aResult = ( face[0] ? SEW_BAD_SIDE2_NODES : SEW_BAD_SIDE1_NODES );
}
- nodes[nbFaceNodes-1] = n;
+ else {
+ aResult = SEW_TOPO_DIFF_SETS_OF_ELEMENTS;
+ }
+ break; // do not return because it s necessary to remove tmp faces
}
- il1 = il1 - nbshift;
- // now have to insert nodes between n0 and n1 or n1 and n2 (see below)
- // n0 n1 n2 n0 n1 n2
- // +-----+-----+ +-----+-----+
- // \ / | |
- // \ / | |
- // n5+ +n3 n7+ +n3
- // \ / | |
- // \ / | |
- // + +-----+-----+
- // n4 n6 n5 n4
- // create new elements
- SMESHDS_Mesh *aMesh = GetMeshDS();
- int aShapeId = FindShape( theFace );
+ // set nodes to merge
+ // -------------------
- int n1,n2,n3;
- if(nbFaceNodes==6) { // quadratic triangle
- SMDS_MeshElement* newElem =
- aMesh->AddFace(nodes[3],nodes[4],nodes[5]);
- myLastCreatedElems.Append(newElem);
- if ( aShapeId && newElem )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
- if(theFace->IsMediumNode(nodes[il1])) {
- // create quadrangle
- newElem = aMesh->AddFace(nodes[0],nodes[1],nodes[3],nodes[5]);
- myLastCreatedElems.Append(newElem);
- if ( aShapeId && newElem )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
- n1 = 1;
- n2 = 2;
- n3 = 3;
- }
- else {
- // create quadrangle
- newElem = aMesh->AddFace(nodes[1],nodes[2],nodes[3],nodes[5]);
- myLastCreatedElems.Append(newElem);
- if ( aShapeId && newElem )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
- n1 = 0;
- n2 = 1;
- n3 = 5;
+ if ( face[0] && face[1] ) {
+ int nbNodes = face[0]->NbNodes();
+ if ( nbNodes != face[1]->NbNodes() ) {
+ MESSAGE("Diff nb of face nodes");
+ aResult = SEW_TOPO_DIFF_SETS_OF_ELEMENTS;
+ break; // do not return because it s necessary to remove tmp faces
}
- }
- else { // nbFaceNodes==8 - quadratic quadrangle
- SMDS_MeshElement* newElem =
- aMesh->AddFace(nodes[3],nodes[4],nodes[5]);
- myLastCreatedElems.Append(newElem);
- if ( aShapeId && newElem )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
- newElem = aMesh->AddFace(nodes[5],nodes[6],nodes[7]);
- myLastCreatedElems.Append(newElem);
- if ( aShapeId && newElem )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
- newElem = aMesh->AddFace(nodes[5],nodes[7],nodes[3]);
- myLastCreatedElems.Append(newElem);
- if ( aShapeId && newElem )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
- if(theFace->IsMediumNode(nodes[il1])) {
- // create quadrangle
- newElem = aMesh->AddFace(nodes[0],nodes[1],nodes[3],nodes[7]);
- myLastCreatedElems.Append(newElem);
- if ( aShapeId && newElem )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
- n1 = 1;
- n2 = 2;
- n3 = 3;
+ bool reverse[] = { false, false }; // order of notLinkNodes of quadrangle
+ if ( nbNodes == 3 ) {
+ //nReplaceMap.insert( TNodeNodeMap::value_type
+ // ( notLinkNodes[0][0], notLinkNodes[1][0] ));
+ nReplaceMap.insert( TNodeNodeMap::value_type
+ ( notLinkNodes1[0], notLinkNodes2[0] ));
}
else {
- // create quadrangle
- newElem = aMesh->AddFace(nodes[1],nodes[2],nodes[3],nodes[7]);
- myLastCreatedElems.Append(newElem);
- if ( aShapeId && newElem )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
- n1 = 0;
- n2 = 1;
- n3 = 7;
+ for ( iSide = 0; iSide < 2; iSide++ ) { // loop on 2 sides
+ // analyse link orientation in faces
+ int i1 = iLinkNode[ iSide ][ 0 ];
+ int i2 = iLinkNode[ iSide ][ 1 ];
+ reverse[ iSide ] = Abs( i1 - i2 ) == 1 ? i1 > i2 : i2 > i1;
+ // if notLinkNodes are the first and the last ones, then
+ // their order does not correspond to the link orientation
+ if (( i1 == 1 && i2 == 2 ) ||
+ ( i1 == 2 && i2 == 1 ))
+ reverse[ iSide ] = !reverse[ iSide ];
+ }
+ if ( reverse[0] == reverse[1] ) {
+ //nReplaceMap.insert( TNodeNodeMap::value_type
+ // ( notLinkNodes[0][0], notLinkNodes[1][0] ));
+ //nReplaceMap.insert( TNodeNodeMap::value_type
+ // ( notLinkNodes[0][1], notLinkNodes[1][1] ));
+ for(int nn=0; nn<nbNodes-2; nn++) {
+ nReplaceMap.insert( TNodeNodeMap::value_type
+ ( notLinkNodes1[nn], notLinkNodes2[nn] ));
+ }
+ }
+ else {
+ //nReplaceMap.insert( TNodeNodeMap::value_type
+ // ( notLinkNodes[0][0], notLinkNodes[1][1] ));
+ //nReplaceMap.insert( TNodeNodeMap::value_type
+ // ( notLinkNodes[0][1], notLinkNodes[1][0] ));
+ for(int nn=0; nn<nbNodes-2; nn++) {
+ nReplaceMap.insert( TNodeNodeMap::value_type
+ ( notLinkNodes1[nn], notLinkNodes2[nbNodes-3-nn] ));
+ }
+ }
}
- }
- // create needed triangles using n1,n2,n3 and inserted nodes
- int nbn = 2 + aNodesToInsert.size();
- //const SMDS_MeshNode* aNodes[nbn];
- vector<const SMDS_MeshNode*> aNodes(nbn);
- aNodes[0] = nodes[n1];
- aNodes[nbn-1] = nodes[n2];
- list<const SMDS_MeshNode*>::iterator nIt = aNodesToInsert.begin();
- for ( iNode = 1; nIt != aNodesToInsert.end(); nIt++ ) {
- aNodes[iNode++] = *nIt;
- }
- for(i=1; i<nbn; i++) {
- SMDS_MeshElement* newElem =
- aMesh->AddFace(aNodes[i-1],aNodes[i],nodes[n3]);
- myLastCreatedElems.Append(newElem);
- if ( aShapeId && newElem )
- aMesh->SetMeshElementOnShape( newElem, aShapeId );
- }
- // remove old quadratic face
- aMesh->RemoveElement(theFace);
- }
-}
-
-//=======================================================================
-//function : UpdateVolumes
-//purpose :
-//=======================================================================
-void SMESH_MeshEditor::UpdateVolumes (const SMDS_MeshNode* theBetweenNode1,
- const SMDS_MeshNode* theBetweenNode2,
- list<const SMDS_MeshNode*>& theNodesToInsert)
-{
- myLastCreatedElems.Clear();
- myLastCreatedNodes.Clear();
- SMDS_ElemIteratorPtr invElemIt = theBetweenNode1->GetInverseElementIterator(SMDSAbs_Volume);
- while (invElemIt->more()) { // loop on inverse elements of theBetweenNode1
- const SMDS_MeshElement* elem = invElemIt->next();
+ // add other links of the faces to linkList
+ // -----------------------------------------
- // check, if current volume has link theBetweenNode1 - theBetweenNode2
- SMDS_VolumeTool aVolume (elem);
- if (!aVolume.IsLinked(theBetweenNode1, theBetweenNode2))
- continue;
+ //const SMDS_MeshNode** nodes = faceNodes[ 0 ];
+ for ( iNode = 0; iNode < nbNodes; iNode++ ) {
+ //linkID = aLinkID_Gen.GetLinkID( nodes[iNode], nodes[iNode+1] );
+ linkID = aLinkID_Gen.GetLinkID( fnodes1[iNode], fnodes1[iNode+1] );
+ pair< set<long>::iterator, bool > iter_isnew = linkIdSet.insert( linkID );
+ if ( !iter_isnew.second ) { // already in a set: no need to process
+ linkIdSet.erase( iter_isnew.first );
+ }
+ else // new in set == encountered for the first time: add
+ {
+ //const SMDS_MeshNode* n1 = nodes[ iNode ];
+ //const SMDS_MeshNode* n2 = nodes[ iNode + 1];
+ const SMDS_MeshNode* n1 = fnodes1[ iNode ];
+ const SMDS_MeshNode* n2 = fnodes1[ iNode + 1];
+ linkList[0].push_back ( NLink( n1, n2 ));
+ linkList[1].push_back ( NLink( nReplaceMap[n1], nReplaceMap[n2] ));
+ }
+ }
+ } // 2 faces found
+ } // loop on link lists
- // insert new nodes in all faces of the volume, sharing link theBetweenNode1 - theBetweenNode2
- int iface, nbFaces = aVolume.NbFaces();
- vector<const SMDS_MeshNode *> poly_nodes;
- vector<int> quantities (nbFaces);
+ if ( aResult == SEW_OK &&
+ ( linkIt[0] != linkList[0].end() ||
+ !faceSetPtr[0]->empty() || !faceSetPtr[1]->empty() )) {
+ MESSAGE( (linkIt[0] != linkList[0].end()) <<" "<< (faceSetPtr[0]->empty()) <<
+ " " << (faceSetPtr[1]->empty()));
+ aResult = SEW_TOPO_DIFF_SETS_OF_ELEMENTS;
+ }
- for (iface = 0; iface < nbFaces; iface++) {
- int nbFaceNodes = aVolume.NbFaceNodes(iface), nbInserted = 0;
- // faceNodes will contain (nbFaceNodes + 1) nodes, last = first
- const SMDS_MeshNode** faceNodes = aVolume.GetFaceNodes(iface);
+ // ====================================================================
+ // 3. Replace nodes in elements of the side 1 and remove replaced nodes
+ // ====================================================================
- for (int inode = 0; inode < nbFaceNodes; inode++) {
- poly_nodes.push_back(faceNodes[inode]);
+ // delete temporary faces: they are in reverseElements of actual nodes
+// SMDS_FaceIteratorPtr tmpFaceIt = aTmpFacesMesh.facesIterator();
+// while ( tmpFaceIt->more() )
+// aTmpFacesMesh.RemoveElement( tmpFaceIt->next() );
+// list<const SMDS_MeshElement* >::iterator tmpFaceIt = tempFaceList.begin();
+// for (; tmpFaceIt !=tempFaceList.end(); ++tmpFaceIt)
+// aMesh->RemoveElement(*tmpFaceIt);
- if (nbInserted == 0) {
- if (faceNodes[inode] == theBetweenNode1) {
- if (faceNodes[inode + 1] == theBetweenNode2) {
- nbInserted = theNodesToInsert.size();
+ if ( aResult != SEW_OK)
+ return aResult;
- // add nodes to insert
- list<const SMDS_MeshNode*>::iterator nIt = theNodesToInsert.begin();
- for (; nIt != theNodesToInsert.end(); nIt++) {
- poly_nodes.push_back(*nIt);
- }
- }
+ list< int > nodeIDsToRemove/*, elemIDsToRemove*/;
+ // loop on nodes replacement map
+ TNodeNodeMap::iterator nReplaceMapIt = nReplaceMap.begin(), nnIt;
+ for ( ; nReplaceMapIt != nReplaceMap.end(); nReplaceMapIt++ )
+ if ( (*nReplaceMapIt).first != (*nReplaceMapIt).second ) {
+ const SMDS_MeshNode* nToRemove = (*nReplaceMapIt).first;
+ nodeIDsToRemove.push_back( nToRemove->GetID() );
+ // loop on elements sharing nToRemove
+ SMDS_ElemIteratorPtr invElemIt = nToRemove->GetInverseElementIterator();
+ while ( invElemIt->more() ) {
+ const SMDS_MeshElement* e = invElemIt->next();
+ // get a new suite of nodes: make replacement
+ int nbReplaced = 0, i = 0, nbNodes = e->NbNodes();
+ vector< const SMDS_MeshNode*> nodes( nbNodes );
+ SMDS_ElemIteratorPtr nIt = e->nodesIterator();
+ while ( nIt->more() ) {
+ const SMDS_MeshNode* n =
+ static_cast<const SMDS_MeshNode*>( nIt->next() );
+ nnIt = nReplaceMap.find( n );
+ if ( nnIt != nReplaceMap.end() ) {
+ nbReplaced++;
+ n = (*nnIt).second;
}
- else if (faceNodes[inode] == theBetweenNode2) {
- if (faceNodes[inode + 1] == theBetweenNode1) {
- nbInserted = theNodesToInsert.size();
-
- // add nodes to insert in reversed order
- list<const SMDS_MeshNode*>::iterator nIt = theNodesToInsert.end();
- nIt--;
- for (; nIt != theNodesToInsert.begin(); nIt--) {
- poly_nodes.push_back(*nIt);
+ nodes[ i++ ] = n;
+ }
+ // if ( nbReplaced == nbNodes && e->GetType() == SMDSAbs_Face )
+ // elemIDsToRemove.push_back( e->GetID() );
+ // else
+ if ( nbReplaced )
+ {
+ SMDSAbs_ElementType etyp = e->GetType();
+ SMDS_MeshElement* newElem = this->AddElement(nodes, etyp, false);
+ if (newElem)
+ {
+ myLastCreatedElems.Append(newElem);
+ AddToSameGroups(newElem, e, aMesh);
+ int aShapeId = e->getshapeId();
+ if ( aShapeId )
+ {
+ aMesh->SetMeshElementOnShape( newElem, aShapeId );
+ }
}
- poly_nodes.push_back(*nIt);
- }
- }
- else {
+ aMesh->RemoveElement(e);
}
- }
}
- quantities[iface] = nbFaceNodes + nbInserted;
- }
-
- // Replace or update the volume
- SMESHDS_Mesh *aMesh = GetMeshDS();
-
- if (elem->IsPoly()) {
- aMesh->ChangePolyhedronNodes(elem, poly_nodes, quantities);
-
}
- else {
- int aShapeId = FindShape( elem );
- SMDS_MeshElement* newElem =
- aMesh->AddPolyhedralVolume(poly_nodes, quantities);
- myLastCreatedElems.Append(newElem);
- if (aShapeId && newElem)
- aMesh->SetMeshElementOnShape(newElem, aShapeId);
+ Remove( nodeIDsToRemove, true );
- aMesh->RemoveElement(elem);
- }
- }
+ return aResult;
}
-//=======================================================================
+//================================================================================
/*!
- * \brief Convert elements contained in a submesh to quadratic
- * \retval int - nb of checked elements
+ * \brief Find corresponding nodes in two sets of faces
+ * \param theSide1 - first face set
+ * \param theSide2 - second first face
+ * \param theFirstNode1 - a boundary node of set 1
+ * \param theFirstNode2 - a node of set 2 corresponding to theFirstNode1
+ * \param theSecondNode1 - a boundary node of set 1 linked with theFirstNode1
+ * \param theSecondNode2 - a node of set 2 corresponding to theSecondNode1
+ * \param nReplaceMap - output map of corresponding nodes
+ * \return bool - is a success or not
*/
-//=======================================================================
-
-int SMESH_MeshEditor::convertElemToQuadratic(SMESHDS_SubMesh * theSm,
- SMESH_MesherHelper& theHelper,
- const bool theForce3d)
-{
- int nbElem = 0;
- if( !theSm ) return nbElem;
- SMDS_ElemIteratorPtr ElemItr = theSm->GetElements();
- while(ElemItr->more())
- {
- nbElem++;
- const SMDS_MeshElement* elem = ElemItr->next();
- if( !elem || elem->IsQuadratic() ) continue;
+//================================================================================
- int id = elem->GetID();
- int nbNodes = elem->NbNodes();
- vector<const SMDS_MeshNode *> aNds (nbNodes);
+#ifdef _DEBUG_
+//#define DEBUG_MATCHING_NODES
+#endif
- for(int i = 0; i < nbNodes; i++)
- {
- aNds[i] = elem->GetNode(i);
- }
- SMDSAbs_ElementType aType = elem->GetType();
+SMESH_MeshEditor::Sew_Error
+SMESH_MeshEditor::FindMatchingNodes(set<const SMDS_MeshElement*>& theSide1,
+ set<const SMDS_MeshElement*>& theSide2,
+ const SMDS_MeshNode* theFirstNode1,
+ const SMDS_MeshNode* theFirstNode2,
+ const SMDS_MeshNode* theSecondNode1,
+ const SMDS_MeshNode* theSecondNode2,
+ TNodeNodeMap & nReplaceMap)
+{
+ set<const SMDS_MeshElement*> * faceSetPtr[] = { &theSide1, &theSide2 };
- theSm->RemoveElement(elem);
- GetMeshDS()->SMDS_Mesh::RemoveFreeElement(elem);
+ nReplaceMap.clear();
+ if ( theFirstNode1 != theFirstNode2 )
+ nReplaceMap.insert( make_pair( theFirstNode1, theFirstNode2 ));
+ if ( theSecondNode1 != theSecondNode2 )
+ nReplaceMap.insert( make_pair( theSecondNode1, theSecondNode2 ));
- const SMDS_MeshElement* NewElem = 0;
+ set< SMESH_TLink > linkSet; // set of nodes where order of nodes is ignored
+ linkSet.insert( SMESH_TLink( theFirstNode1, theSecondNode1 ));
- switch( aType )
- {
- case SMDSAbs_Edge :
- {
- NewElem = theHelper.AddEdge(aNds[0], aNds[1], id, theForce3d);
- break;
- }
- case SMDSAbs_Face :
- {
- switch(nbNodes)
- {
- case 3:
- NewElem = theHelper.AddFace(aNds[0], aNds[1], aNds[2], id, theForce3d);
- break;
- case 4:
- NewElem = theHelper.AddFace(aNds[0], aNds[1], aNds[2], aNds[3], id, theForce3d);
- break;
- default:
- continue;
- }
- break;
- }
- case SMDSAbs_Volume :
- {
- switch(nbNodes)
- {
- case 4:
- NewElem = theHelper.AddVolume(aNds[0], aNds[1], aNds[2], aNds[3], id, true);
- break;
- case 6:
- NewElem = theHelper.AddVolume(aNds[0], aNds[1], aNds[2], aNds[3], aNds[4], aNds[5], id, true);
- break;
- case 8:
- NewElem = theHelper.AddVolume(aNds[0], aNds[1], aNds[2], aNds[3],
- aNds[4], aNds[5], aNds[6], aNds[7], id, true);
- break;
- default:
- continue;
- }
- break;
- }
- default :
- continue;
- }
- if( NewElem )
- {
- AddToSameGroups( NewElem, elem, GetMeshDS());
- theSm->AddElement( NewElem );
- }
- if ( NewElem != elem )
- RemoveElemFromGroups (elem, GetMeshDS());
- }
- return nbElem;
-}
+ list< NLink > linkList[2];
+ linkList[0].push_back( NLink( theFirstNode1, theSecondNode1 ));
+ linkList[1].push_back( NLink( theFirstNode2, theSecondNode2 ));
-//=======================================================================
-//function : ConvertToQuadratic
-//purpose :
-//=======================================================================
-void SMESH_MeshEditor::ConvertToQuadratic(const bool theForce3d)
-{
- SMESHDS_Mesh* meshDS = GetMeshDS();
+ // loop on links in linkList; find faces by links and append links
+ // of the found faces to linkList
+ list< NLink >::iterator linkIt[] = { linkList[0].begin(), linkList[1].begin() } ;
+ for ( ; linkIt[0] != linkList[0].end(); linkIt[0]++, linkIt[1]++ ) {
+ NLink link[] = { *linkIt[0], *linkIt[1] };
+ if ( linkSet.find( link[0] ) == linkSet.end() )
+ continue;
- SMESH_MesherHelper aHelper(*myMesh);
- aHelper.SetIsQuadratic( true );
+ // by links, find faces in the face sets,
+ // and find indices of link nodes in the found faces;
+ // in a face set, there is only one or no face sharing a link
+ // ---------------------------------------------------------------
- int nbCheckedElems = 0;
- if ( myMesh->HasShapeToMesh() )
- {
- if ( SMESH_subMesh *aSubMesh = myMesh->GetSubMeshContaining(myMesh->GetShapeToMesh()))
- {
- SMESH_subMeshIteratorPtr smIt = aSubMesh->getDependsOnIterator(true,false);
- while ( smIt->more() ) {
- SMESH_subMesh* sm = smIt->next();
- if ( SMESHDS_SubMesh *smDS = sm->GetSubMeshDS() ) {
- aHelper.SetSubShape( sm->GetSubShape() );
- nbCheckedElems += convertElemToQuadratic(smDS, aHelper, theForce3d);
- }
- }
- }
- }
- int totalNbElems = meshDS->NbEdges() + meshDS->NbFaces() + meshDS->NbVolumes();
- if ( nbCheckedElems < totalNbElems ) // not all elements in submeshes
- {
- SMDS_EdgeIteratorPtr aEdgeItr = meshDS->edgesIterator();
- while(aEdgeItr->more())
+ const SMDS_MeshElement* face[] = { 0, 0 };
+ list<const SMDS_MeshNode*> notLinkNodes[2];
+ //bool reverse[] = { false, false }; // order of notLinkNodes
+ int nbNodes[2];
+ for ( int iSide = 0; iSide < 2; iSide++ ) // loop on 2 sides
{
- const SMDS_MeshEdge* edge = aEdgeItr->next();
- if(edge && !edge->IsQuadratic())
+ const SMDS_MeshNode* n1 = link[iSide].first;
+ const SMDS_MeshNode* n2 = link[iSide].second;
+ set<const SMDS_MeshElement*> * faceSet = faceSetPtr[ iSide ];
+ set< const SMDS_MeshElement* > facesOfNode1;
+ for ( int iNode = 0; iNode < 2; iNode++ ) // loop on 2 nodes of a link
{
- int id = edge->GetID();
- const SMDS_MeshNode* n1 = edge->GetNode(0);
- const SMDS_MeshNode* n2 = edge->GetNode(1);
-
- meshDS->SMDS_Mesh::RemoveFreeElement(edge);
+ // during a loop of the first node, we find all faces around n1,
+ // during a loop of the second node, we find one face sharing both n1 and n2
+ const SMDS_MeshNode* n = iNode ? n1 : n2; // a node of a link
+ SMDS_ElemIteratorPtr fIt = n->GetInverseElementIterator(SMDSAbs_Face);
+ while ( fIt->more() ) { // loop on faces sharing a node
+ const SMDS_MeshElement* f = fIt->next();
+ if (faceSet->find( f ) != faceSet->end() && // f is in face set
+ ! facesOfNode1.insert( f ).second ) // f encounters twice
+ {
+ if ( face[ iSide ] ) {
+ MESSAGE( "2 faces per link " );
+ return ( iSide ? SEW_BAD_SIDE2_NODES : SEW_BAD_SIDE1_NODES );
+ }
+ face[ iSide ] = f;
+ faceSet->erase( f );
- const SMDS_MeshEdge* NewEdge = aHelper.AddEdge(n1, n2, id, theForce3d);
- if ( NewEdge )
- AddToSameGroups(NewEdge, edge, meshDS);
- if ( NewEdge != edge )
- RemoveElemFromGroups (edge, meshDS);
+ // get not link nodes
+ int nbN = f->NbNodes();
+ if ( f->IsQuadratic() )
+ nbN /= 2;
+ nbNodes[ iSide ] = nbN;
+ list< const SMDS_MeshNode* > & nodes = notLinkNodes[ iSide ];
+ int i1 = f->GetNodeIndex( n1 );
+ int i2 = f->GetNodeIndex( n2 );
+ int iEnd = nbN, iBeg = -1, iDelta = 1;
+ bool reverse = ( Abs( i1 - i2 ) == 1 ? i1 > i2 : i2 > i1 );
+ if ( reverse ) {
+ std::swap( iEnd, iBeg ); iDelta = -1;
+ }
+ int i = i2;
+ while ( true ) {
+ i += iDelta;
+ if ( i == iEnd ) i = iBeg + iDelta;
+ if ( i == i1 ) break;
+ nodes.push_back ( f->GetNode( i ) );
+ }
+ }
+ }
}
}
- SMDS_FaceIteratorPtr aFaceItr = meshDS->facesIterator();
- while(aFaceItr->more())
- {
- const SMDS_MeshFace* face = aFaceItr->next();
- if(!face || face->IsQuadratic() ) continue;
-
- int id = face->GetID();
- int nbNodes = face->NbNodes();
- vector<const SMDS_MeshNode *> aNds (nbNodes);
-
- for(int i = 0; i < nbNodes; i++)
- {
- aNds[i] = face->GetNode(i);
+ // check similarity of elements of the sides
+ if (( face[0] && !face[1] ) || ( !face[0] && face[1] )) {
+ MESSAGE("Correspondent face not found on side " << ( face[0] ? 1 : 0 ));
+ if ( nReplaceMap.size() == 2 ) { // faces on input nodes not found
+ return ( face[0] ? SEW_BAD_SIDE2_NODES : SEW_BAD_SIDE1_NODES );
}
-
- meshDS->SMDS_Mesh::RemoveFreeElement(face);
-
- SMDS_MeshFace * NewFace = 0;
- switch(nbNodes)
- {
- case 3:
- NewFace = aHelper.AddFace(aNds[0], aNds[1], aNds[2], id, theForce3d);
- break;
- case 4:
- NewFace = aHelper.AddFace(aNds[0], aNds[1], aNds[2], aNds[3], id, theForce3d);
- break;
- default:
- continue;
+ else {
+ return SEW_TOPO_DIFF_SETS_OF_ELEMENTS;
}
- if ( NewFace )
- AddToSameGroups(NewFace, face, meshDS);
- if ( NewFace != face )
- RemoveElemFromGroups (face, meshDS);
}
- SMDS_VolumeIteratorPtr aVolumeItr = meshDS->volumesIterator();
- while(aVolumeItr->more())
- {
- const SMDS_MeshVolume* volume = aVolumeItr->next();
- if(!volume || volume->IsQuadratic() ) continue;
- int id = volume->GetID();
- int nbNodes = volume->NbNodes();
- vector<const SMDS_MeshNode *> aNds (nbNodes);
+ // set nodes to merge
+ // -------------------
- for(int i = 0; i < nbNodes; i++)
+ if ( face[0] && face[1] ) {
+ if ( nbNodes[0] != nbNodes[1] ) {
+ MESSAGE("Diff nb of face nodes");
+ return SEW_TOPO_DIFF_SETS_OF_ELEMENTS;
+ }
+#ifdef DEBUG_MATCHING_NODES
+ MESSAGE ( " Link 1: " << link[0].first->GetID() <<" "<< link[0].second->GetID()
+ << " F 1: " << face[0] << "| Link 2: " << link[1].first->GetID() <<" "
+ << link[1].second->GetID() << " F 2: " << face[1] << " | Bind: " ) ;
+#endif
+ int nbN = nbNodes[0];
{
- aNds[i] = volume->GetNode(i);
+ list<const SMDS_MeshNode*>::iterator n1 = notLinkNodes[0].begin();
+ list<const SMDS_MeshNode*>::iterator n2 = notLinkNodes[1].begin();
+ for ( int i = 0 ; i < nbN - 2; ++i ) {
+#ifdef DEBUG_MATCHING_NODES
+ MESSAGE ( (*n1)->GetID() << " to " << (*n2)->GetID() );
+#endif
+ nReplaceMap.insert( make_pair( *(n1++), *(n2++) ));
+ }
}
- meshDS->SMDS_Mesh::RemoveFreeElement(volume);
+ // add other links of the face 1 to linkList
+ // -----------------------------------------
- SMDS_MeshVolume * NewVolume = 0;
- switch(nbNodes)
+ const SMDS_MeshElement* f0 = face[0];
+ const SMDS_MeshNode* n1 = f0->GetNode( nbN - 1 );
+ for ( int i = 0; i < nbN; i++ )
{
- case 4:
- NewVolume = aHelper.AddVolume(aNds[0], aNds[1], aNds[2],
- aNds[3], id, true );
- break;
- case 6:
- NewVolume = aHelper.AddVolume(aNds[0], aNds[1], aNds[2],
- aNds[3], aNds[4], aNds[5], id, true);
- break;
- case 8:
- NewVolume = aHelper.AddVolume(aNds[0], aNds[1], aNds[2], aNds[3],
- aNds[4], aNds[5], aNds[6], aNds[7], id, true);
- break;
- default:
- continue;
+ const SMDS_MeshNode* n2 = f0->GetNode( i );
+ pair< set< SMESH_TLink >::iterator, bool > iter_isnew =
+ linkSet.insert( SMESH_TLink( n1, n2 ));
+ if ( !iter_isnew.second ) { // already in a set: no need to process
+ linkSet.erase( iter_isnew.first );
+ }
+ else // new in set == encountered for the first time: add
+ {
+#ifdef DEBUG_MATCHING_NODES
+ MESSAGE ( "Add link 1: " << n1->GetID() << " " << n2->GetID() << " "
+ << " | link 2: " << nReplaceMap[n1]->GetID() << " " << nReplaceMap[n2]->GetID() << " " );
+#endif
+ linkList[0].push_back ( NLink( n1, n2 ));
+ linkList[1].push_back ( NLink( nReplaceMap[n1], nReplaceMap[n2] ));
+ }
+ n1 = n2;
}
- if ( NewVolume )
- AddToSameGroups(NewVolume, volume, meshDS);
- if ( NewVolume != volume )
- RemoveElemFromGroups (volume, meshDS);
- }
- }
+ } // 2 faces found
+ } // loop on link lists
+
+ return SEW_OK;
}
-//=======================================================================
+//================================================================================
/*!
- * \brief Convert quadratic elements to linear ones and remove quadratic nodes
- * \retval int - nb of checked elements
- */
-//=======================================================================
+ \brief Creates a hole in a mesh by doubling the nodes of some particular elements
+ \param theElems - the list of elements (edges or faces) to be replicated
+ The nodes for duplication could be found from these elements
+ \param theNodesNot - list of nodes to NOT replicate
+ \param theAffectedElems - the list of elements (cells and edges) to which the
+ replicated nodes should be associated to.
+ \return TRUE if operation has been completed successfully, FALSE otherwise
+*/
+//================================================================================
-int SMESH_MeshEditor::removeQuadElem(SMESHDS_SubMesh * theSm,
- SMDS_ElemIteratorPtr theItr,
- const int theShapeID)
+bool SMESH_MeshEditor::DoubleNodes( const TIDSortedElemSet& theElems,
+ const TIDSortedElemSet& theNodesNot,
+ const TIDSortedElemSet& theAffectedElems )
{
- int nbElem = 0;
- SMESHDS_Mesh* meshDS = GetMeshDS();
- while( theItr->more() )
- {
- const SMDS_MeshElement* elem = theItr->next();
- nbElem++;
- if( elem && elem->IsQuadratic())
- {
- int id = elem->GetID();
- int nbNodes = elem->NbNodes();
- vector<const SMDS_MeshNode *> aNds, mediumNodes;
- aNds.reserve( nbNodes );
- mediumNodes.reserve( nbNodes );
-
- for(int i = 0; i < nbNodes; i++)
- {
- const SMDS_MeshNode* n = elem->GetNode(i);
-
- if( elem->IsMediumNode( n ) )
- mediumNodes.push_back( n );
- else
- aNds.push_back( n );
- }
- if( aNds.empty() ) continue;
- SMDSAbs_ElementType aType = elem->GetType();
+ myLastCreatedElems.Clear();
+ myLastCreatedNodes.Clear();
- //remove old quadratic element
- meshDS->SMDS_Mesh::RemoveFreeElement( elem );
- if ( theSm )
- theSm->RemoveElement( elem );
+ if ( theElems.size() == 0 )
+ return false;
- SMDS_MeshElement * NewElem = AddElement( aNds, aType, false, id );
- if ( NewElem )
- AddToSameGroups(NewElem, elem, meshDS);
- if ( NewElem != elem )
- RemoveElemFromGroups (elem, meshDS);
- if( theSm && NewElem )
- theSm->AddElement( NewElem );
+ SMESHDS_Mesh* aMeshDS = GetMeshDS();
+ if ( !aMeshDS )
+ return false;
- // remove medium nodes
- vector<const SMDS_MeshNode*>::iterator nIt = mediumNodes.begin();
- for ( ; nIt != mediumNodes.end(); ++nIt ) {
- const SMDS_MeshNode* n = *nIt;
- if ( n->NbInverseNodes() == 0 ) {
- if ( n->GetPosition()->GetShapeId() != theShapeID )
- meshDS->RemoveFreeNode( n, meshDS->MeshElements
- ( n->GetPosition()->GetShapeId() ));
- else
- meshDS->RemoveFreeNode( n, theSm );
- }
- }
- }
- }
- return nbElem;
+ bool res = false;
+ std::map< const SMDS_MeshNode*, const SMDS_MeshNode* > anOldNodeToNewNode;
+ // duplicate elements and nodes
+ res = doubleNodes( aMeshDS, theElems, theNodesNot, anOldNodeToNewNode, true );
+ // replce nodes by duplications
+ res = doubleNodes( aMeshDS, theAffectedElems, theNodesNot, anOldNodeToNewNode, false );
+ return res;
}
-//=======================================================================
-//function : ConvertFromQuadratic
-//purpose :
-//=======================================================================
-bool SMESH_MeshEditor::ConvertFromQuadratic()
+//================================================================================
+/*!
+ \brief Creates a hole in a mesh by doubling the nodes of some particular elements
+ \param theMeshDS - mesh instance
+ \param theElems - the elements replicated or modified (nodes should be changed)
+ \param theNodesNot - nodes to NOT replicate
+ \param theNodeNodeMap - relation of old node to new created node
+ \param theIsDoubleElem - flag os to replicate element or modify
+ \return TRUE if operation has been completed successfully, FALSE otherwise
+*/
+//================================================================================
+
+bool SMESH_MeshEditor::doubleNodes( SMESHDS_Mesh* theMeshDS,
+ const TIDSortedElemSet& theElems,
+ const TIDSortedElemSet& theNodesNot,
+ std::map< const SMDS_MeshNode*,
+ const SMDS_MeshNode* >& theNodeNodeMap,
+ const bool theIsDoubleElem )
{
- int nbCheckedElems = 0;
- if ( myMesh->HasShapeToMesh() )
+ MESSAGE("doubleNodes");
+ // iterate on through element and duplicate them (by nodes duplication)
+ bool res = false;
+ TIDSortedElemSet::const_iterator elemItr = theElems.begin();
+ for ( ; elemItr != theElems.end(); ++elemItr )
{
- if ( SMESH_subMesh *aSubMesh = myMesh->GetSubMeshContaining(myMesh->GetShapeToMesh()))
- {
- SMESH_subMeshIteratorPtr smIt = aSubMesh->getDependsOnIterator(true,false);
- while ( smIt->more() ) {
- SMESH_subMesh* sm = smIt->next();
- if ( SMESHDS_SubMesh *smDS = sm->GetSubMeshDS() )
- nbCheckedElems += removeQuadElem( smDS, smDS->GetElements(), sm->GetId() );
+ const SMDS_MeshElement* anElem = *elemItr;
+ if (!anElem)
+ continue;
+
+ bool isDuplicate = false;
+ // duplicate nodes to duplicate element
+ std::vector<const SMDS_MeshNode*> newNodes( anElem->NbNodes() );
+ SMDS_ElemIteratorPtr anIter = anElem->nodesIterator();
+ int ind = 0;
+ while ( anIter->more() )
+ {
+
+ SMDS_MeshNode* aCurrNode = (SMDS_MeshNode*)anIter->next();
+ SMDS_MeshNode* aNewNode = aCurrNode;
+ if ( theNodeNodeMap.find( aCurrNode ) != theNodeNodeMap.end() )
+ aNewNode = (SMDS_MeshNode*)theNodeNodeMap[ aCurrNode ];
+ else if ( theIsDoubleElem && theNodesNot.find( aCurrNode ) == theNodesNot.end() )
+ {
+ // duplicate node
+ aNewNode = theMeshDS->AddNode( aCurrNode->X(), aCurrNode->Y(), aCurrNode->Z() );
+ theNodeNodeMap[ aCurrNode ] = aNewNode;
+ myLastCreatedNodes.Append( aNewNode );
}
+ isDuplicate |= (aCurrNode != aNewNode);
+ newNodes[ ind++ ] = aNewNode;
}
- }
-
- int totalNbElems =
- GetMeshDS()->NbEdges() + GetMeshDS()->NbFaces() + GetMeshDS()->NbVolumes();
- if ( nbCheckedElems < totalNbElems ) // not all elements in submeshes
- {
- SMESHDS_SubMesh *aSM = 0;
- removeQuadElem( aSM, GetMeshDS()->elementsIterator(), 0 );
- }
+ if ( !isDuplicate )
+ continue;
- return true;
+ if ( theIsDoubleElem )
+ AddElement(newNodes, anElem->GetType(), anElem->IsPoly());
+ else
+ {
+ MESSAGE("ChangeElementNodes");
+ theMeshDS->ChangeElementNodes( anElem, &newNodes[ 0 ], anElem->NbNodes() );
+ }
+ res = true;
+ }
+ return res;
}
-//=======================================================================
-//function : SewSideElements
-//purpose :
-//=======================================================================
+//================================================================================
+/*!
+ \brief Creates a hole in a mesh by doubling the nodes of some particular elements
+ \param theNodes - identifiers of nodes to be doubled
+ \param theModifiedElems - identifiers of elements to be updated by the new (doubled)
+ nodes. If list of element identifiers is empty then nodes are doubled but
+ they not assigned to elements
+ \return TRUE if operation has been completed successfully, FALSE otherwise
+*/
+//================================================================================
-SMESH_MeshEditor::Sew_Error
- SMESH_MeshEditor::SewSideElements (TIDSortedElemSet& theSide1,
- TIDSortedElemSet& theSide2,
- const SMDS_MeshNode* theFirstNode1,
- const SMDS_MeshNode* theFirstNode2,
- const SMDS_MeshNode* theSecondNode1,
- const SMDS_MeshNode* theSecondNode2)
+bool SMESH_MeshEditor::DoubleNodes( const std::list< int >& theListOfNodes,
+ const std::list< int >& theListOfModifiedElems )
{
+ MESSAGE("DoubleNodes");
myLastCreatedElems.Clear();
myLastCreatedNodes.Clear();
- MESSAGE ("::::SewSideElements()");
- if ( theSide1.size() != theSide2.size() )
- return SEW_DIFF_NB_OF_ELEMENTS;
-
- Sew_Error aResult = SEW_OK;
- // Algo:
- // 1. Build set of faces representing each side
- // 2. Find which nodes of the side 1 to merge with ones on the side 2
- // 3. Replace nodes in elements of the side 1 and remove replaced nodes
-
- // =======================================================================
- // 1. Build set of faces representing each side:
- // =======================================================================
- // a. build set of nodes belonging to faces
- // b. complete set of faces: find missing fices whose nodes are in set of nodes
- // c. create temporary faces representing side of volumes if correspondent
- // face does not exist
-
- SMESHDS_Mesh* aMesh = GetMeshDS();
- SMDS_Mesh aTmpFacesMesh;
- set<const SMDS_MeshElement*> faceSet1, faceSet2;
- set<const SMDS_MeshElement*> volSet1, volSet2;
- set<const SMDS_MeshNode*> nodeSet1, nodeSet2;
- set<const SMDS_MeshElement*> * faceSetPtr[] = { &faceSet1, &faceSet2 };
- set<const SMDS_MeshElement*> * volSetPtr[] = { &volSet1, &volSet2 };
- set<const SMDS_MeshNode*> * nodeSetPtr[] = { &nodeSet1, &nodeSet2 };
- TIDSortedElemSet * elemSetPtr[] = { &theSide1, &theSide2 };
- int iSide, iFace, iNode;
+ if ( theListOfNodes.size() == 0 )
+ return false;
- for ( iSide = 0; iSide < 2; iSide++ ) {
- set<const SMDS_MeshNode*> * nodeSet = nodeSetPtr[ iSide ];
- TIDSortedElemSet * elemSet = elemSetPtr[ iSide ];
- set<const SMDS_MeshElement*> * faceSet = faceSetPtr[ iSide ];
- set<const SMDS_MeshElement*> * volSet = volSetPtr [ iSide ];
- set<const SMDS_MeshElement*>::iterator vIt;
- TIDSortedElemSet::iterator eIt;
- set<const SMDS_MeshNode*>::iterator nIt;
+ SMESHDS_Mesh* aMeshDS = GetMeshDS();
+ if ( !aMeshDS )
+ return false;
- // check that given nodes belong to given elements
- const SMDS_MeshNode* n1 = ( iSide == 0 ) ? theFirstNode1 : theFirstNode2;
- const SMDS_MeshNode* n2 = ( iSide == 0 ) ? theSecondNode1 : theSecondNode2;
- int firstIndex = -1, secondIndex = -1;
- for (eIt = elemSet->begin(); eIt != elemSet->end(); eIt++ ) {
- const SMDS_MeshElement* elem = *eIt;
- if ( firstIndex < 0 ) firstIndex = elem->GetNodeIndex( n1 );
- if ( secondIndex < 0 ) secondIndex = elem->GetNodeIndex( n2 );
- if ( firstIndex > -1 && secondIndex > -1 ) break;
- }
- if ( firstIndex < 0 || secondIndex < 0 ) {
- // we can simply return until temporary faces created
- return (iSide == 0 ) ? SEW_BAD_SIDE1_NODES : SEW_BAD_SIDE2_NODES;
+ // iterate through nodes and duplicate them
+
+ std::map< const SMDS_MeshNode*, const SMDS_MeshNode* > anOldNodeToNewNode;
+
+ std::list< int >::const_iterator aNodeIter;
+ for ( aNodeIter = theListOfNodes.begin(); aNodeIter != theListOfNodes.end(); ++aNodeIter )
+ {
+ int aCurr = *aNodeIter;
+ SMDS_MeshNode* aNode = (SMDS_MeshNode*)aMeshDS->FindNode( aCurr );
+ if ( !aNode )
+ continue;
+
+ // duplicate node
+
+ const SMDS_MeshNode* aNewNode = aMeshDS->AddNode( aNode->X(), aNode->Y(), aNode->Z() );
+ if ( aNewNode )
+ {
+ anOldNodeToNewNode[ aNode ] = aNewNode;
+ myLastCreatedNodes.Append( aNewNode );
}
+ }
- // -----------------------------------------------------------
- // 1a. Collect nodes of existing faces
- // and build set of face nodes in order to detect missing
- // faces corresponing to sides of volumes
- // -----------------------------------------------------------
+ // Create map of new nodes for modified elements
- set< set <const SMDS_MeshNode*> > setOfFaceNodeSet;
+ std::map< SMDS_MeshElement*, vector<const SMDS_MeshNode*> > anElemToNodes;
- // loop on the given element of a side
- for (eIt = elemSet->begin(); eIt != elemSet->end(); eIt++ ) {
- //const SMDS_MeshElement* elem = *eIt;
- const SMDS_MeshElement* elem = *eIt;
- if ( elem->GetType() == SMDSAbs_Face ) {
- faceSet->insert( elem );
- set <const SMDS_MeshNode*> faceNodeSet;
- SMDS_ElemIteratorPtr nodeIt = elem->nodesIterator();
- while ( nodeIt->more() ) {
- const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
- nodeSet->insert( n );
- faceNodeSet.insert( n );
- }
- setOfFaceNodeSet.insert( faceNodeSet );
+ std::list< int >::const_iterator anElemIter;
+ for ( anElemIter = theListOfModifiedElems.begin();
+ anElemIter != theListOfModifiedElems.end(); ++anElemIter )
+ {
+ int aCurr = *anElemIter;
+ SMDS_MeshElement* anElem = (SMDS_MeshElement*)aMeshDS->FindElement( aCurr );
+ if ( !anElem )
+ continue;
+
+ vector<const SMDS_MeshNode*> aNodeArr( anElem->NbNodes() );
+
+ SMDS_ElemIteratorPtr anIter = anElem->nodesIterator();
+ int ind = 0;
+ while ( anIter->more() )
+ {
+ SMDS_MeshNode* aCurrNode = (SMDS_MeshNode*)anIter->next();
+ if ( aCurr && anOldNodeToNewNode.find( aCurrNode ) != anOldNodeToNewNode.end() )
+ {
+ const SMDS_MeshNode* aNewNode = anOldNodeToNewNode[ aCurrNode ];
+ aNodeArr[ ind++ ] = aNewNode;
}
- else if ( elem->GetType() == SMDSAbs_Volume )
- volSet->insert( elem );
+ else
+ aNodeArr[ ind++ ] = aCurrNode;
}
- // ------------------------------------------------------------------------------
- // 1b. Complete set of faces: find missing fices whose nodes are in set of nodes
- // ------------------------------------------------------------------------------
+ anElemToNodes[ anElem ] = aNodeArr;
+ }
- for ( nIt = nodeSet->begin(); nIt != nodeSet->end(); nIt++ ) { // loop on nodes of iSide
- SMDS_ElemIteratorPtr fIt = (*nIt)->GetInverseElementIterator(SMDSAbs_Face);
- while ( fIt->more() ) { // loop on faces sharing a node
- const SMDS_MeshElement* f = fIt->next();
- if ( faceSet->find( f ) == faceSet->end() ) {
- // check if all nodes are in nodeSet and
- // complete setOfFaceNodeSet if they are
- set <const SMDS_MeshNode*> faceNodeSet;
- SMDS_ElemIteratorPtr nodeIt = f->nodesIterator();
- bool allInSet = true;
- while ( nodeIt->more() && allInSet ) { // loop on nodes of a face
- const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
- if ( nodeSet->find( n ) == nodeSet->end() )
- allInSet = false;
- else
- faceNodeSet.insert( n );
- }
- if ( allInSet ) {
- faceSet->insert( f );
- setOfFaceNodeSet.insert( faceNodeSet );
- }
- }
+ // Change nodes of elements
+
+ std::map< SMDS_MeshElement*, vector<const SMDS_MeshNode*> >::iterator
+ anElemToNodesIter = anElemToNodes.begin();
+ for ( ; anElemToNodesIter != anElemToNodes.end(); ++anElemToNodesIter )
+ {
+ const SMDS_MeshElement* anElem = anElemToNodesIter->first;
+ vector<const SMDS_MeshNode*> aNodeArr = anElemToNodesIter->second;
+ if ( anElem )
+ {
+ MESSAGE("ChangeElementNodes");
+ aMeshDS->ChangeElementNodes( anElem, &aNodeArr[ 0 ], anElem->NbNodes() );
}
- }
+ }
- // -------------------------------------------------------------------------
- // 1c. Create temporary faces representing sides of volumes if correspondent
- // face does not exist
- // -------------------------------------------------------------------------
+ return true;
+}
- if ( !volSet->empty() ) {
- //int nodeSetSize = nodeSet->size();
+namespace {
- // loop on given volumes
- for ( vIt = volSet->begin(); vIt != volSet->end(); vIt++ ) {
- SMDS_VolumeTool vol (*vIt);
- // loop on volume faces: find free faces
- // --------------------------------------
- list<const SMDS_MeshElement* > freeFaceList;
- for ( iFace = 0; iFace < vol.NbFaces(); iFace++ ) {
- if ( !vol.IsFreeFace( iFace ))
- continue;
- // check if there is already a face with same nodes in a face set
- const SMDS_MeshElement* aFreeFace = 0;
- const SMDS_MeshNode** fNodes = vol.GetFaceNodes( iFace );
- int nbNodes = vol.NbFaceNodes( iFace );
- set <const SMDS_MeshNode*> faceNodeSet;
- vol.GetFaceNodes( iFace, faceNodeSet );
- bool isNewFace = setOfFaceNodeSet.insert( faceNodeSet ).second;
- if ( isNewFace ) {
- // no such a face is given but it still can exist, check it
- if ( nbNodes == 3 ) {
- aFreeFace = aMesh->FindFace( fNodes[0],fNodes[1],fNodes[2] );
- }
- else if ( nbNodes == 4 ) {
- aFreeFace = aMesh->FindFace( fNodes[0],fNodes[1],fNodes[2],fNodes[3] );
- }
- else {
- vector<const SMDS_MeshNode *> poly_nodes ( fNodes, & fNodes[nbNodes]);
- aFreeFace = aMesh->FindFace(poly_nodes);
- }
- }
- if ( !aFreeFace ) {
- // create a temporary face
- if ( nbNodes == 3 ) {
- aFreeFace = aTmpFacesMesh.AddFace( fNodes[0],fNodes[1],fNodes[2] );
- }
- else if ( nbNodes == 4 ) {
- aFreeFace = aTmpFacesMesh.AddFace( fNodes[0],fNodes[1],fNodes[2],fNodes[3] );
- }
- else {
- vector<const SMDS_MeshNode *> poly_nodes ( fNodes, & fNodes[nbNodes]);
- aFreeFace = aTmpFacesMesh.AddPolygonalFace(poly_nodes);
- }
- }
- if ( aFreeFace )
- freeFaceList.push_back( aFreeFace );
+ //================================================================================
+ /*!
+ \brief Check if element located inside shape
+ \return TRUE if IN or ON shape, FALSE otherwise
+ */
+ //================================================================================
+
+ template<class Classifier>
+ bool isInside(const SMDS_MeshElement* theElem,
+ Classifier& theClassifier,
+ const double theTol)
+ {
+ gp_XYZ centerXYZ (0, 0, 0);
+ SMDS_ElemIteratorPtr aNodeItr = theElem->nodesIterator();
+ while (aNodeItr->more())
+ centerXYZ += SMESH_TNodeXYZ(cast2Node( aNodeItr->next()));
+
+ gp_Pnt aPnt = centerXYZ / theElem->NbNodes();
+ theClassifier.Perform(aPnt, theTol);
+ TopAbs_State aState = theClassifier.State();
+ return (aState == TopAbs_IN || aState == TopAbs_ON );
+ }
- } // loop on faces of a volume
+ //================================================================================
+ /*!
+ * \brief Classifier of the 3D point on the TopoDS_Face
+ * with interaface suitable for isInside()
+ */
+ //================================================================================
- // choose one of several free faces
- // --------------------------------------
- if ( freeFaceList.size() > 1 ) {
- // choose a face having max nb of nodes shared by other elems of a side
- int maxNbNodes = -1/*, nbExcludedFaces = 0*/;
- list<const SMDS_MeshElement* >::iterator fIt = freeFaceList.begin();
- while ( fIt != freeFaceList.end() ) { // loop on free faces
- int nbSharedNodes = 0;
- SMDS_ElemIteratorPtr nodeIt = (*fIt)->nodesIterator();
- while ( nodeIt->more() ) { // loop on free face nodes
- const SMDS_MeshNode* n =
- static_cast<const SMDS_MeshNode*>( nodeIt->next() );
- SMDS_ElemIteratorPtr invElemIt = n->GetInverseElementIterator();
- while ( invElemIt->more() ) {
- const SMDS_MeshElement* e = invElemIt->next();
- if ( faceSet->find( e ) != faceSet->end() )
- nbSharedNodes++;
- if ( elemSet->find( e ) != elemSet->end() )
- nbSharedNodes++;
- }
- }
- if ( nbSharedNodes >= maxNbNodes ) {
- maxNbNodes = nbSharedNodes;
- fIt++;
- }
- else
- freeFaceList.erase( fIt++ ); // here fIt++ occures before erase
- }
- if ( freeFaceList.size() > 1 )
- {
- // could not choose one face, use another way
- // choose a face most close to the bary center of the opposite side
- gp_XYZ aBC( 0., 0., 0. );
- set <const SMDS_MeshNode*> addedNodes;
- TIDSortedElemSet * elemSet2 = elemSetPtr[ 1 - iSide ];
- eIt = elemSet2->begin();
- for ( eIt = elemSet2->begin(); eIt != elemSet2->end(); eIt++ ) {
- SMDS_ElemIteratorPtr nodeIt = (*eIt)->nodesIterator();
- while ( nodeIt->more() ) { // loop on free face nodes
- const SMDS_MeshNode* n =
- static_cast<const SMDS_MeshNode*>( nodeIt->next() );
- if ( addedNodes.insert( n ).second )
- aBC += gp_XYZ( n->X(),n->Y(),n->Z() );
- }
- }
- aBC /= addedNodes.size();
- double minDist = DBL_MAX;
- fIt = freeFaceList.begin();
- while ( fIt != freeFaceList.end() ) { // loop on free faces
- double dist = 0;
- SMDS_ElemIteratorPtr nodeIt = (*fIt)->nodesIterator();
- while ( nodeIt->more() ) { // loop on free face nodes
- const SMDS_MeshNode* n =
- static_cast<const SMDS_MeshNode*>( nodeIt->next() );
- gp_XYZ p( n->X(),n->Y(),n->Z() );
- dist += ( aBC - p ).SquareModulus();
- }
- if ( dist < minDist ) {
- minDist = dist;
- freeFaceList.erase( freeFaceList.begin(), fIt++ );
- }
- else
- fIt = freeFaceList.erase( fIt++ );
- }
- }
- } // choose one of several free faces of a volume
+ struct _FaceClassifier
+ {
+ Extrema_ExtPS _extremum;
+ BRepAdaptor_Surface _surface;
+ TopAbs_State _state;
- if ( freeFaceList.size() == 1 ) {
- const SMDS_MeshElement* aFreeFace = freeFaceList.front();
- faceSet->insert( aFreeFace );
- // complete a node set with nodes of a found free face
-// for ( iNode = 0; iNode < ; iNode++ )
-// nodeSet->insert( fNodes[ iNode ] );
- }
+ _FaceClassifier(const TopoDS_Face& face):_extremum(),_surface(face),_state(TopAbs_OUT)
+ {
+ _extremum.Initialize( _surface,
+ _surface.FirstUParameter(), _surface.LastUParameter(),
+ _surface.FirstVParameter(), _surface.LastVParameter(),
+ _surface.Tolerance(), _surface.Tolerance() );
+ }
+ void Perform(const gp_Pnt& aPnt, double theTol)
+ {
+ _state = TopAbs_OUT;
+ _extremum.Perform(aPnt);
+ if ( _extremum.IsDone() )
+ for ( int iSol = 1; iSol <= _extremum.NbExt() && _state == TopAbs_OUT; ++iSol)
+#if OCC_VERSION_LARGE > 0x06040000 // Porting to OCCT6.5.1
+ _state = ( _extremum.SquareDistance(iSol) <= theTol ? TopAbs_IN : TopAbs_OUT );
+#else
+ _state = ( _extremum.Value(iSol) <= theTol ? TopAbs_IN : TopAbs_OUT );
+#endif
+ }
+ TopAbs_State State() const
+ {
+ return _state;
+ }
+ };
+}
- } // loop on volumes of a side
+//================================================================================
+/*!
+ \brief Creates a hole in a mesh by doubling the nodes of some particular elements
+ \param theElems - group of of elements (edges or faces) to be replicated
+ \param theNodesNot - group of nodes not to replicate
+ \param theShape - shape to detect affected elements (element which geometric center
+ located on or inside shape).
+ The replicated nodes should be associated to affected elements.
+ \return TRUE if operation has been completed successfully, FALSE otherwise
+*/
+//================================================================================
-// // complete a set of faces if new nodes in a nodeSet appeared
-// // ----------------------------------------------------------
-// if ( nodeSetSize != nodeSet->size() ) {
-// for ( ; nIt != nodeSet->end(); nIt++ ) { // loop on nodes of iSide
-// SMDS_ElemIteratorPtr fIt = (*nIt)->GetInverseElementIterator(SMDSAbs_Face);
-// while ( fIt->more() ) { // loop on faces sharing a node
-// const SMDS_MeshElement* f = fIt->next();
-// if ( faceSet->find( f ) == faceSet->end() ) {
-// // check if all nodes are in nodeSet and
-// // complete setOfFaceNodeSet if they are
-// set <const SMDS_MeshNode*> faceNodeSet;
-// SMDS_ElemIteratorPtr nodeIt = f->nodesIterator();
-// bool allInSet = true;
-// while ( nodeIt->more() && allInSet ) { // loop on nodes of a face
-// const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
-// if ( nodeSet->find( n ) == nodeSet->end() )
-// allInSet = false;
-// else
-// faceNodeSet.insert( n );
-// }
-// if ( allInSet ) {
-// faceSet->insert( f );
-// setOfFaceNodeSet.insert( faceNodeSet );
-// }
-// }
-// }
-// }
-// }
- } // Create temporary faces, if there are volumes given
- } // loop on sides
+bool SMESH_MeshEditor::DoubleNodesInRegion( const TIDSortedElemSet& theElems,
+ const TIDSortedElemSet& theNodesNot,
+ const TopoDS_Shape& theShape )
+{
+ if ( theShape.IsNull() )
+ return false;
- if ( faceSet1.size() != faceSet2.size() ) {
- // delete temporary faces: they are in reverseElements of actual nodes
- SMDS_FaceIteratorPtr tmpFaceIt = aTmpFacesMesh.facesIterator();
- while ( tmpFaceIt->more() )
- aTmpFacesMesh.RemoveElement( tmpFaceIt->next() );
- MESSAGE("Diff nb of faces");
- return SEW_TOPO_DIFF_SETS_OF_ELEMENTS;
+ const double aTol = Precision::Confusion();
+ auto_ptr< BRepClass3d_SolidClassifier> bsc3d;
+ auto_ptr<_FaceClassifier> aFaceClassifier;
+ if ( theShape.ShapeType() == TopAbs_SOLID )
+ {
+ bsc3d.reset( new BRepClass3d_SolidClassifier(theShape));;
+ bsc3d->PerformInfinitePoint(aTol);
+ }
+ else if (theShape.ShapeType() == TopAbs_FACE )
+ {
+ aFaceClassifier.reset( new _FaceClassifier(TopoDS::Face(theShape)));
+ }
+
+ // iterates on indicated elements and get elements by back references from their nodes
+ TIDSortedElemSet anAffected;
+ TIDSortedElemSet::const_iterator elemItr = theElems.begin();
+ for ( ; elemItr != theElems.end(); ++elemItr )
+ {
+ SMDS_MeshElement* anElem = (SMDS_MeshElement*)*elemItr;
+ if (!anElem)
+ continue;
+
+ SMDS_ElemIteratorPtr nodeItr = anElem->nodesIterator();
+ while ( nodeItr->more() )
+ {
+ const SMDS_MeshNode* aNode = cast2Node(nodeItr->next());
+ if ( !aNode || theNodesNot.find(aNode) != theNodesNot.end() )
+ continue;
+ SMDS_ElemIteratorPtr backElemItr = aNode->GetInverseElementIterator();
+ while ( backElemItr->more() )
+ {
+ const SMDS_MeshElement* curElem = backElemItr->next();
+ if ( curElem && theElems.find(curElem) == theElems.end() &&
+ ( bsc3d.get() ?
+ isInside( curElem, *bsc3d, aTol ) :
+ isInside( curElem, *aFaceClassifier, aTol )))
+ anAffected.insert( curElem );
+ }
+ }
}
+ return DoubleNodes( theElems, theNodesNot, anAffected );
+}
+
+/*!
+ * \brief compute an oriented angle between two planes defined by four points.
+ * The vector (p0,p1) defines the intersection of the 2 planes (p0,p1,g1) and (p0,p1,g2)
+ * @param p0 base of the rotation axe
+ * @param p1 extremity of the rotation axe
+ * @param g1 belongs to the first plane
+ * @param g2 belongs to the second plane
+ */
+double SMESH_MeshEditor::OrientedAngle(const gp_Pnt& p0, const gp_Pnt& p1, const gp_Pnt& g1, const gp_Pnt& g2)
+{
+// MESSAGE(" p0: " << p0.X() << " " << p0.Y() << " " << p0.Z());
+// MESSAGE(" p1: " << p1.X() << " " << p1.Y() << " " << p1.Z());
+// MESSAGE(" g1: " << g1.X() << " " << g1.Y() << " " << g1.Z());
+// MESSAGE(" g2: " << g2.X() << " " << g2.Y() << " " << g2.Z());
+ gp_Vec vref(p0, p1);
+ gp_Vec v1(p0, g1);
+ gp_Vec v2(p0, g2);
+ gp_Vec n1 = vref.Crossed(v1);
+ gp_Vec n2 = vref.Crossed(v2);
+ return n2.AngleWithRef(n1, vref);
+}
+
+/*!
+ * \brief Double nodes on shared faces between groups of volumes and create flat elements on demand.
+ * The list of groups must describe a partition of the mesh volumes.
+ * The nodes of the internal faces at the boundaries of the groups are doubled.
+ * In option, the internal faces are replaced by flat elements.
+ * Triangles are transformed in prisms, and quadrangles in hexahedrons.
+ * The flat elements are stored in groups of volumes.
+ * @param theElems - list of groups of volumes, where a group of volume is a set of
+ * SMDS_MeshElements sorted by Id.
+ * @param createJointElems - if TRUE, create the elements
+ * @return TRUE if operation has been completed successfully, FALSE otherwise
+ */
+bool SMESH_MeshEditor::DoubleNodesOnGroupBoundaries( const std::vector<TIDSortedElemSet>& theElems,
+ bool createJointElems)
+{
+ MESSAGE("----------------------------------------------");
+ MESSAGE("SMESH_MeshEditor::doubleNodesOnGroupBoundaries");
+ MESSAGE("----------------------------------------------");
+
+ SMESHDS_Mesh *meshDS = this->myMesh->GetMeshDS();
+ meshDS->BuildDownWardConnectivity(true);
+ CHRONO(50);
+ SMDS_UnstructuredGrid *grid = meshDS->getGrid();
+
+ // --- build the list of faces shared by 2 domains (group of elements), with their domain and volume indexes
+ // build the list of cells with only a node or an edge on the border, with their domain and volume indexes
+ // build the list of nodes shared by 2 or more domains, with their domain indexes
+
+ std::map<DownIdType, std::map<int,int>, DownIdCompare> faceDomains; // face --> (id domain --> id volume)
+ std::map<int,int>celldom; // cell vtkId --> domain
+ std::map<DownIdType, std::map<int,int>, DownIdCompare> cellDomains; // oldNode --> (id domain --> id cell)
+ std::map<int, std::map<int,int> > nodeDomains; // oldId --> (domainId --> newId)
+ faceDomains.clear();
+ celldom.clear();
+ cellDomains.clear();
+ nodeDomains.clear();
+ std::map<int,int> emptyMap;
+ std::set<int> emptySet;
+ emptyMap.clear();
+
+ for (int idom = 0; idom < theElems.size(); idom++)
+ {
+
+ // --- build a map (face to duplicate --> volume to modify)
+ // with all the faces shared by 2 domains (group of elements)
+ // and corresponding volume of this domain, for each shared face.
+ // a volume has a face shared by 2 domains if it has a neighbor which is not in is domain.
+
+ const TIDSortedElemSet& domain = theElems[idom];
+ TIDSortedElemSet::const_iterator elemItr = domain.begin();
+ for (; elemItr != domain.end(); ++elemItr)
+ {
+ SMDS_MeshElement* anElem = (SMDS_MeshElement*) *elemItr;
+ if (!anElem)
+ continue;
+ int vtkId = anElem->getVtkId();
+ int neighborsVtkIds[NBMAXNEIGHBORS];
+ int downIds[NBMAXNEIGHBORS];
+ unsigned char downTypes[NBMAXNEIGHBORS];
+ int nbNeighbors = grid->GetNeighbors(neighborsVtkIds, downIds, downTypes, vtkId);
+ for (int n = 0; n < nbNeighbors; n++)
+ {
+ int smdsId = meshDS->fromVtkToSmds(neighborsVtkIds[n]);
+ const SMDS_MeshElement* elem = meshDS->FindElement(smdsId);
+ if (! domain.count(elem)) // neighbor is in another domain : face is shared
+ {
+ DownIdType face(downIds[n], downTypes[n]);
+ if (!faceDomains.count(face))
+ faceDomains[face] = emptyMap; // create an empty entry for face
+ if (!faceDomains[face].count(idom))
+ {
+ faceDomains[face][idom] = vtkId; // volume associated to face in this domain
+ celldom[vtkId] = idom;
+ }
+ }
+ }
+ }
+ }
- // ============================================================
- // 2. Find nodes to merge:
- // bind a node to remove to a node to put instead
- // ============================================================
+ //MESSAGE("Number of shared faces " << faceDomains.size());
+ std::map<DownIdType, std::map<int, int>, DownIdCompare>::iterator itface;
- TNodeNodeMap nReplaceMap; // bind a node to remove to a node to put instead
- if ( theFirstNode1 != theFirstNode2 )
- nReplaceMap.insert( TNodeNodeMap::value_type( theFirstNode1, theFirstNode2 ));
- if ( theSecondNode1 != theSecondNode2 )
- nReplaceMap.insert( TNodeNodeMap::value_type( theSecondNode1, theSecondNode2 ));
+ // --- explore the shared faces domain by domain,
+ // explore the nodes of the face and see if they belong to a cell in the domain,
+ // which has only a node or an edge on the border (not a shared face)
- LinkID_Gen aLinkID_Gen( GetMeshDS() );
- set< long > linkIdSet; // links to process
- linkIdSet.insert( aLinkID_Gen.GetLinkID( theFirstNode1, theSecondNode1 ));
+ for (int idomain = 0; idomain < theElems.size(); idomain++)
+ {
+ const TIDSortedElemSet& domain = theElems[idomain];
+ itface = faceDomains.begin();
+ for (; itface != faceDomains.end(); ++itface)
+ {
+ std::map<int, int> domvol = itface->second;
+ if (!domvol.count(idomain))
+ continue;
+ DownIdType face = itface->first;
+ //MESSAGE(" --- face " << face.cellId);
+ std::set<int> oldNodes;
+ oldNodes.clear();
+ grid->GetNodeIds(oldNodes, face.cellId, face.cellType);
+ std::set<int>::iterator itn = oldNodes.begin();
+ for (; itn != oldNodes.end(); ++itn)
+ {
+ int oldId = *itn;
+ //MESSAGE(" node " << oldId);
+ std::set<int> cells;
+ cells.clear();
+ vtkCellLinks::Link l = grid->GetCellLinks()->GetLink(oldId);
+ for (int i=0; i<l.ncells; i++)
+ {
+ int vtkId = l.cells[i];
+ const SMDS_MeshElement* anElem = GetMeshDS()->FindElement(GetMeshDS()->fromVtkToSmds(vtkId));
+ if (!domain.count(anElem))
+ continue;
+ int vtkType = grid->GetCellType(vtkId);
+ int downId = grid->CellIdToDownId(vtkId);
+ if (downId < 0)
+ {
+ MESSAGE("doubleNodesOnGroupBoundaries: internal algorithm problem");
+ continue; // not OK at this stage of the algorithm:
+ //no cells created after BuildDownWardConnectivity
+ }
+ DownIdType aCell(downId, vtkType);
+ if (celldom.count(vtkId))
+ continue;
+ cellDomains[aCell][idomain] = vtkId;
+ celldom[vtkId] = idomain;
+ }
+ }
+ }
+ }
- typedef pair< const SMDS_MeshNode*, const SMDS_MeshNode* > NLink;
- list< NLink > linkList[2];
- linkList[0].push_back( NLink( theFirstNode1, theSecondNode1 ));
- linkList[1].push_back( NLink( theFirstNode2, theSecondNode2 ));
- // loop on links in linkList; find faces by links and append links
- // of the found faces to linkList
- list< NLink >::iterator linkIt[] = { linkList[0].begin(), linkList[1].begin() } ;
- for ( ; linkIt[0] != linkList[0].end(); linkIt[0]++, linkIt[1]++ ) {
- NLink link[] = { *linkIt[0], *linkIt[1] };
- long linkID = aLinkID_Gen.GetLinkID( link[0].first, link[0].second );
- if ( linkIdSet.find( linkID ) == linkIdSet.end() )
- continue;
+ // --- explore the shared faces domain by domain, to duplicate the nodes in a coherent way
+ // for each shared face, get the nodes
+ // for each node, for each domain of the face, create a clone of the node
- // by links, find faces in the face sets,
- // and find indices of link nodes in the found faces;
- // in a face set, there is only one or no face sharing a link
- // ---------------------------------------------------------------
+ // --- edges at the intersection of 3 or 4 domains, with the order of domains to build
+ // junction elements of type prism or hexa. the key is the pair of nodesId (lower first)
+ // the value is the ordered domain ids. (more than 4 domains not taken into account)
- const SMDS_MeshElement* face[] = { 0, 0 };
- //const SMDS_MeshNode* faceNodes[ 2 ][ 5 ];
- vector<const SMDS_MeshNode*> fnodes1(9);
- vector<const SMDS_MeshNode*> fnodes2(9);
- //const SMDS_MeshNode* notLinkNodes[ 2 ][ 2 ] = {{ 0, 0 },{ 0, 0 }} ;
- vector<const SMDS_MeshNode*> notLinkNodes1(6);
- vector<const SMDS_MeshNode*> notLinkNodes2(6);
- int iLinkNode[2][2];
- for ( iSide = 0; iSide < 2; iSide++ ) { // loop on 2 sides
- const SMDS_MeshNode* n1 = link[iSide].first;
- const SMDS_MeshNode* n2 = link[iSide].second;
- set<const SMDS_MeshElement*> * faceSet = faceSetPtr[ iSide ];
- set< const SMDS_MeshElement* > fMap;
- for ( int i = 0; i < 2; i++ ) { // loop on 2 nodes of a link
- const SMDS_MeshNode* n = i ? n1 : n2; // a node of a link
- SMDS_ElemIteratorPtr fIt = n->GetInverseElementIterator(SMDSAbs_Face);
- while ( fIt->more() ) { // loop on faces sharing a node
- const SMDS_MeshElement* f = fIt->next();
- if (faceSet->find( f ) != faceSet->end() && // f is in face set
- ! fMap.insert( f ).second ) // f encounters twice
- {
- if ( face[ iSide ] ) {
- MESSAGE( "2 faces per link " );
- aResult = iSide ? SEW_BAD_SIDE2_NODES : SEW_BAD_SIDE1_NODES;
- break;
- }
- face[ iSide ] = f;
- faceSet->erase( f );
- // get face nodes and find ones of a link
- iNode = 0;
- int nbl = -1;
- if(f->IsPoly()) {
- if(iSide==0) {
- fnodes1.resize(f->NbNodes()+1);
- notLinkNodes1.resize(f->NbNodes()-2);
- }
- else {
- fnodes2.resize(f->NbNodes()+1);
- notLinkNodes2.resize(f->NbNodes()-2);
- }
- }
- if(!f->IsQuadratic()) {
- SMDS_ElemIteratorPtr nIt = f->nodesIterator();
- while ( nIt->more() ) {
- const SMDS_MeshNode* n =
- static_cast<const SMDS_MeshNode*>( nIt->next() );
- if ( n == n1 ) {
- iLinkNode[ iSide ][ 0 ] = iNode;
- }
- else if ( n == n2 ) {
- iLinkNode[ iSide ][ 1 ] = iNode;
- }
- //else if ( notLinkNodes[ iSide ][ 0 ] )
- // notLinkNodes[ iSide ][ 1 ] = n;
- //else
- // notLinkNodes[ iSide ][ 0 ] = n;
- else {
- nbl++;
- if(iSide==0)
- notLinkNodes1[nbl] = n;
- //notLinkNodes1.push_back(n);
- else
- notLinkNodes2[nbl] = n;
- //notLinkNodes2.push_back(n);
- }
- //faceNodes[ iSide ][ iNode++ ] = n;
- if(iSide==0) {
- fnodes1[iNode++] = n;
- }
- else {
- fnodes2[iNode++] = n;
+ std::map<std::vector<int>, std::vector<int> > edgesMultiDomains; // nodes of edge --> ordered domains
+ std::map<int, std::vector<int> > mutipleNodes; // nodes muti domains with domain order
+
+ for (int idomain = 0; idomain < theElems.size(); idomain++)
+ {
+ itface = faceDomains.begin();
+ for (; itface != faceDomains.end(); ++itface)
+ {
+ std::map<int, int> domvol = itface->second;
+ if (!domvol.count(idomain))
+ continue;
+ DownIdType face = itface->first;
+ //MESSAGE(" --- face " << face.cellId);
+ std::set<int> oldNodes;
+ oldNodes.clear();
+ grid->GetNodeIds(oldNodes, face.cellId, face.cellType);
+ bool isMultipleDetected = false;
+ std::set<int>::iterator itn = oldNodes.begin();
+ for (; itn != oldNodes.end(); ++itn)
+ {
+ int oldId = *itn;
+ //MESSAGE(" node " << oldId);
+ if (!nodeDomains.count(oldId))
+ nodeDomains[oldId] = emptyMap; // create an empty entry for node
+ if (nodeDomains[oldId].empty())
+ nodeDomains[oldId][idomain] = oldId; // keep the old node in the first domain
+ std::map<int, int>::iterator itdom = domvol.begin();
+ for (; itdom != domvol.end(); ++itdom)
+ {
+ int idom = itdom->first;
+ //MESSAGE(" domain " << idom);
+ if (!nodeDomains[oldId].count(idom)) // --- node to clone
+ {
+ if (nodeDomains[oldId].size() >= 2) // a multiple node
+ {
+ vector<int> orderedDoms;
+ //MESSAGE("multiple node " << oldId);
+ isMultipleDetected =true;
+ if (mutipleNodes.count(oldId))
+ orderedDoms = mutipleNodes[oldId];
+ else
+ {
+ map<int,int>::iterator it = nodeDomains[oldId].begin();
+ for (; it != nodeDomains[oldId].end(); ++it)
+ orderedDoms.push_back(it->first);
+ }
+ orderedDoms.push_back(idom); // TODO order ==> push_front or back
+ //stringstream txt;
+ //for (int i=0; i<orderedDoms.size(); i++)
+ // txt << orderedDoms[i] << " ";
+ //MESSAGE("orderedDoms " << txt.str());
+ mutipleNodes[oldId] = orderedDoms;
+ }
+ double *coords = grid->GetPoint(oldId);
+ SMDS_MeshNode *newNode = meshDS->AddNode(coords[0], coords[1], coords[2]);
+ int newId = newNode->getVtkId();
+ nodeDomains[oldId][idom] = newId; // cloned node for other domains
+ //MESSAGE(" newNode " << newId << " oldNode " << oldId << " size=" <<nodeDomains[oldId].size());
+ }
+ if (nodeDomains[oldId].size() >= 3)
+ {
+ //MESSAGE("confirm multiple node " << oldId);
+ isMultipleDetected =true;
+ }
}
- }
}
- else { // f->IsQuadratic()
- const SMDS_QuadraticFaceOfNodes* F =
- static_cast<const SMDS_QuadraticFaceOfNodes*>(f);
- // use special nodes iterator
- SMDS_NodeIteratorPtr anIter = F->interlacedNodesIterator();
- while ( anIter->more() ) {
- const SMDS_MeshNode* n =
- static_cast<const SMDS_MeshNode*>( anIter->next() );
- if ( n == n1 ) {
- iLinkNode[ iSide ][ 0 ] = iNode;
- }
- else if ( n == n2 ) {
- iLinkNode[ iSide ][ 1 ] = iNode;
- }
- else {
- nbl++;
- if(iSide==0) {
- notLinkNodes1[nbl] = n;
- }
- else {
- notLinkNodes2[nbl] = n;
- }
- }
- if(iSide==0) {
- fnodes1[iNode++] = n;
- }
- else {
- fnodes2[iNode++] = n;
+ if (isMultipleDetected) // check if an edge of the face is shared between 3 or more domains
+ {
+ //MESSAGE("multiple Nodes detected on a shared face");
+ int downId = itface->first.cellId;
+ unsigned char cellType = itface->first.cellType;
+ int nbEdges = grid->getDownArray(cellType)->getNumberOfDownCells(downId);
+ const int *downEdgeIds = grid->getDownArray(cellType)->getDownCells(downId);
+ const unsigned char* edgeType = grid->getDownArray(cellType)->getDownTypes(downId);
+ for (int ie =0; ie < nbEdges; ie++)
+ {
+ int nodes[3];
+ int nbNodes = grid->getDownArray(edgeType[ie])->getNodes(downEdgeIds[ie], nodes);
+ if (mutipleNodes.count(nodes[0]) && mutipleNodes.count(nodes[nbNodes-1]))
+ {
+ vector<int> vn0 = mutipleNodes[nodes[0]];
+ vector<int> vn1 = mutipleNodes[nodes[nbNodes - 1]];
+ sort( vn0.begin(), vn0.end() );
+ sort( vn1.begin(), vn1.end() );
+ if (vn0 == vn1)
+ {
+ //MESSAGE(" detect edgesMultiDomains " << nodes[0] << " " << nodes[nbNodes - 1]);
+ double *coords = grid->GetPoint(nodes[0]);
+ gp_Pnt p0(coords[0], coords[1], coords[2]);
+ coords = grid->GetPoint(nodes[nbNodes - 1]);
+ gp_Pnt p1(coords[0], coords[1], coords[2]);
+ gp_Pnt gref;
+ int vtkVolIds[1000]; // an edge can belong to a lot of volumes
+ map<int, SMDS_VtkVolume*> domvol; // domain --> a volume with the edge
+ map<int, double> angleDom; // oriented angles between planes defined by edge and volume centers
+ int nbvol = grid->GetParentVolumes(vtkVolIds, downEdgeIds[ie], edgeType[ie]);
+ for (int id=0; id < vn0.size(); id++)
+ {
+ int idom = vn0[id];
+ for (int ivol=0; ivol<nbvol; ivol++)
+ {
+ int smdsId = meshDS->fromVtkToSmds(vtkVolIds[ivol]);
+ SMDS_MeshElement* elem = (SMDS_MeshElement*)meshDS->FindElement(smdsId);
+ if (theElems[idom].count(elem))
+ {
+ SMDS_VtkVolume* svol = dynamic_cast<SMDS_VtkVolume*>(elem);
+ domvol[idom] = svol;
+ //MESSAGE(" domain " << idom << " volume " << elem->GetID());
+ double values[3];
+ vtkIdType npts = 0;
+ vtkIdType* pts = 0;
+ grid->GetCellPoints(vtkVolIds[ivol], npts, pts);
+ SMDS_VtkVolume::gravityCenter(grid, pts, npts, values);
+ if (id ==0)
+ {
+ gref.SetXYZ(gp_XYZ(values[0], values[1], values[2]));
+ angleDom[idom] = 0;
+ }
+ else
+ {
+ gp_Pnt g(values[0], values[1], values[2]);
+ angleDom[idom] = OrientedAngle(p0, p1, gref, g); // -pi<angle<+pi
+ //MESSAGE(" angle=" << angleDom[idom]);
+ }
+ break;
+ }
+ }
+ }
+ map<double, int> sortedDom; // sort domains by angle
+ for (map<int, double>::iterator ia = angleDom.begin(); ia != angleDom.end(); ++ia)
+ sortedDom[ia->second] = ia->first;
+ vector<int> vnodes;
+ vector<int> vdom;
+ for (map<double, int>::iterator ib = sortedDom.begin(); ib != sortedDom.end(); ++ib)
+ {
+ vdom.push_back(ib->second);
+ //MESSAGE(" ordered domain " << ib->second << " angle " << ib->first);
+ }
+ for (int ino = 0; ino < nbNodes; ino++)
+ vnodes.push_back(nodes[ino]);
+ edgesMultiDomains[vnodes] = vdom; // nodes vector --> ordered domains
+ }
+ }
}
- }
- }
- //faceNodes[ iSide ][ iNode ] = faceNodes[ iSide ][ 0 ];
- if(iSide==0) {
- fnodes1[iNode] = fnodes1[0];
- }
- else {
- fnodes2[iNode] = fnodes1[0];
}
- }
}
- }
}
- // check similarity of elements of the sides
- if (aResult == SEW_OK && ( face[0] && !face[1] ) || ( !face[0] && face[1] )) {
- MESSAGE("Correspondent face not found on side " << ( face[0] ? 1 : 0 ));
- if ( nReplaceMap.size() == 2 ) { // faces on input nodes not found
- aResult = ( face[0] ? SEW_BAD_SIDE2_NODES : SEW_BAD_SIDE1_NODES );
- }
- else {
- aResult = SEW_TOPO_DIFF_SETS_OF_ELEMENTS;
- }
- break; // do not return because it s necessary to remove tmp faces
- }
+ // --- iterate on shared faces (volumes to modify, face to extrude)
+ // get node id's of the face (id SMDS = id VTK)
+ // create flat element with old and new nodes if requested
- // set nodes to merge
- // -------------------
+ // --- new quad nodes on flat quad elements: oldId --> ((domain1 X domain2) --> newId)
+ // (domain1 X domain2) = domain1 + MAXINT*domain2
- if ( face[0] && face[1] ) {
- int nbNodes = face[0]->NbNodes();
- if ( nbNodes != face[1]->NbNodes() ) {
- MESSAGE("Diff nb of face nodes");
- aResult = SEW_TOPO_DIFF_SETS_OF_ELEMENTS;
- break; // do not return because it s necessary to remove tmp faces
- }
- bool reverse[] = { false, false }; // order of notLinkNodes of quadrangle
- if ( nbNodes == 3 ) {
- //nReplaceMap.insert( TNodeNodeMap::value_type
- // ( notLinkNodes[0][0], notLinkNodes[1][0] ));
- nReplaceMap.insert( TNodeNodeMap::value_type
- ( notLinkNodes1[0], notLinkNodes2[0] ));
- }
- else {
- for ( iSide = 0; iSide < 2; iSide++ ) { // loop on 2 sides
- // analyse link orientation in faces
- int i1 = iLinkNode[ iSide ][ 0 ];
- int i2 = iLinkNode[ iSide ][ 1 ];
- reverse[ iSide ] = Abs( i1 - i2 ) == 1 ? i1 > i2 : i2 > i1;
- // if notLinkNodes are the first and the last ones, then
- // their order does not correspond to the link orientation
- if (( i1 == 1 && i2 == 2 ) ||
- ( i1 == 2 && i2 == 1 ))
- reverse[ iSide ] = !reverse[ iSide ];
+ std::map<int, std::map<long,int> > nodeQuadDomains;
+ std::map<std::string, SMESH_Group*> mapOfJunctionGroups;
+
+ if (createJointElems)
+ {
+ itface = faceDomains.begin();
+ for (; itface != faceDomains.end(); ++itface)
+ {
+ DownIdType face = itface->first;
+ std::set<int> oldNodes;
+ std::set<int>::iterator itn;
+ oldNodes.clear();
+ grid->GetNodeIds(oldNodes, face.cellId, face.cellType);
+
+ std::map<int, int> domvol = itface->second;
+ std::map<int, int>::iterator itdom = domvol.begin();
+ int dom1 = itdom->first;
+ int vtkVolId = itdom->second;
+ itdom++;
+ int dom2 = itdom->first;
+ SMDS_MeshVolume *vol = grid->extrudeVolumeFromFace(vtkVolId, dom1, dom2, oldNodes, nodeDomains,
+ nodeQuadDomains);
+ stringstream grpname;
+ grpname << "j_";
+ if (dom1 < dom2)
+ grpname << dom1 << "_" << dom2;
+ else
+ grpname << dom2 << "_" << dom1;
+ int idg;
+ string namegrp = grpname.str();
+ if (!mapOfJunctionGroups.count(namegrp))
+ mapOfJunctionGroups[namegrp] = this->myMesh->AddGroup(SMDSAbs_Volume, namegrp.c_str(), idg);
+ SMESHDS_Group *sgrp = dynamic_cast<SMESHDS_Group*>(mapOfJunctionGroups[namegrp]->GetGroupDS());
+ if (sgrp)
+ sgrp->Add(vol->GetID());
}
- if ( reverse[0] == reverse[1] ) {
- //nReplaceMap.insert( TNodeNodeMap::value_type
- // ( notLinkNodes[0][0], notLinkNodes[1][0] ));
- //nReplaceMap.insert( TNodeNodeMap::value_type
- // ( notLinkNodes[0][1], notLinkNodes[1][1] ));
- for(int nn=0; nn<nbNodes-2; nn++) {
- nReplaceMap.insert( TNodeNodeMap::value_type
- ( notLinkNodes1[nn], notLinkNodes2[nn] ));
- }
+ }
+
+ // --- create volumes on multiple domain intersection if requested
+ // iterate on edgesMultiDomains
+
+ if (createJointElems)
+ {
+ std::map<std::vector<int>, std::vector<int> >::iterator ite = edgesMultiDomains.begin();
+ for (; ite != edgesMultiDomains.end(); ++ite)
+ {
+ vector<int> nodes = ite->first;
+ vector<int> orderDom = ite->second;
+ vector<vtkIdType> orderedNodes;
+ if (nodes.size() == 2)
+ {
+ //MESSAGE(" use edgesMultiDomains " << nodes[0] << " " << nodes[1]);
+ for (int ino=0; ino < nodes.size(); ino++)
+ if (orderDom.size() == 3)
+ for (int idom = 0; idom <orderDom.size(); idom++)
+ orderedNodes.push_back( nodeDomains[nodes[ino]][orderDom[idom]] );
+ else
+ for (int idom = orderDom.size()-1; idom >=0; idom--)
+ orderedNodes.push_back( nodeDomains[nodes[ino]][orderDom[idom]] );
+ SMDS_MeshVolume* vol = this->GetMeshDS()->AddVolumeFromVtkIds(orderedNodes);
+
+ stringstream grpname;
+ grpname << "mj_";
+ grpname << 0 << "_" << 0;
+ int idg;
+ string namegrp = grpname.str();
+ if (!mapOfJunctionGroups.count(namegrp))
+ mapOfJunctionGroups[namegrp] = this->myMesh->AddGroup(SMDSAbs_Volume, namegrp.c_str(), idg);
+ SMESHDS_Group *sgrp = dynamic_cast<SMESHDS_Group*>(mapOfJunctionGroups[namegrp]->GetGroupDS());
+ if (sgrp)
+ sgrp->Add(vol->GetID());
+ }
+ else
+ {
+ //MESSAGE("Quadratic multiple joints not implemented");
+ // TODO quadratic nodes
+ }
}
- else {
- //nReplaceMap.insert( TNodeNodeMap::value_type
- // ( notLinkNodes[0][0], notLinkNodes[1][1] ));
- //nReplaceMap.insert( TNodeNodeMap::value_type
- // ( notLinkNodes[0][1], notLinkNodes[1][0] ));
- for(int nn=0; nn<nbNodes-2; nn++) {
- nReplaceMap.insert( TNodeNodeMap::value_type
- ( notLinkNodes1[nn], notLinkNodes2[nbNodes-3-nn] ));
- }
+ }
+
+ // --- list the explicit faces and edges of the mesh that need to be modified,
+ // i.e. faces and edges built with one or more duplicated nodes.
+ // associate these faces or edges to their corresponding domain.
+ // only the first domain found is kept when a face or edge is shared
+
+ std::map<DownIdType, std::map<int,int>, DownIdCompare> faceOrEdgeDom; // cellToModify --> (id domain --> id cell)
+ std::map<int,int> feDom; // vtk id of cell to modify --> id domain
+ faceOrEdgeDom.clear();
+ feDom.clear();
+
+ for (int idomain = 0; idomain < theElems.size(); idomain++)
+ {
+ std::map<int, std::map<int, int> >::const_iterator itnod = nodeDomains.begin();
+ for (; itnod != nodeDomains.end(); ++itnod)
+ {
+ int oldId = itnod->first;
+ //MESSAGE(" node " << oldId);
+ vtkCellLinks::Link l = grid->GetCellLinks()->GetLink(oldId);
+ for (int i = 0; i < l.ncells; i++)
+ {
+ int vtkId = l.cells[i];
+ int vtkType = grid->GetCellType(vtkId);
+ int downId = grid->CellIdToDownId(vtkId);
+ if (downId < 0)
+ continue; // new cells: not to be modified
+ DownIdType aCell(downId, vtkType);
+ int volParents[1000];
+ int nbvol = grid->GetParentVolumes(volParents, vtkId);
+ for (int j = 0; j < nbvol; j++)
+ if (celldom.count(volParents[j]) && (celldom[volParents[j]] == idomain))
+ if (!feDom.count(vtkId))
+ {
+ feDom[vtkId] = idomain;
+ faceOrEdgeDom[aCell] = emptyMap;
+ faceOrEdgeDom[aCell][idomain] = vtkId; // affect face or edge to the first domain only
+ //MESSAGE("affect cell " << this->GetMeshDS()->fromVtkToSmds(vtkId) << " domain " << idomain
+ // << " type " << vtkType << " downId " << downId);
+ }
+ }
}
- }
+ }
- // add other links of the faces to linkList
- // -----------------------------------------
+ // --- iterate on shared faces (volumes to modify, face to extrude)
+ // get node id's of the face
+ // replace old nodes by new nodes in volumes, and update inverse connectivity
- //const SMDS_MeshNode** nodes = faceNodes[ 0 ];
- for ( iNode = 0; iNode < nbNodes; iNode++ ) {
- //linkID = aLinkID_Gen.GetLinkID( nodes[iNode], nodes[iNode+1] );
- linkID = aLinkID_Gen.GetLinkID( fnodes1[iNode], fnodes1[iNode+1] );
- pair< set<long>::iterator, bool > iter_isnew = linkIdSet.insert( linkID );
- if ( !iter_isnew.second ) { // already in a set: no need to process
- linkIdSet.erase( iter_isnew.first );
+ std::map<DownIdType, std::map<int,int>, DownIdCompare>* maps[3] = {&faceDomains, &cellDomains, &faceOrEdgeDom};
+ for (int m=0; m<3; m++)
+ {
+ std::map<DownIdType, std::map<int,int>, DownIdCompare>* amap = maps[m];
+ itface = (*amap).begin();
+ for (; itface != (*amap).end(); ++itface)
+ {
+ DownIdType face = itface->first;
+ std::set<int> oldNodes;
+ std::set<int>::iterator itn;
+ oldNodes.clear();
+ grid->GetNodeIds(oldNodes, face.cellId, face.cellType);
+ //MESSAGE("examine cell, downId " << face.cellId << " type " << int(face.cellType));
+ std::map<int, int> localClonedNodeIds;
+
+ std::map<int, int> domvol = itface->second;
+ std::map<int, int>::iterator itdom = domvol.begin();
+ for (; itdom != domvol.end(); ++itdom)
+ {
+ int idom = itdom->first;
+ int vtkVolId = itdom->second;
+ //MESSAGE("modify nodes of cell " << this->GetMeshDS()->fromVtkToSmds(vtkVolId) << " domain " << idom);
+ localClonedNodeIds.clear();
+ for (itn = oldNodes.begin(); itn != oldNodes.end(); ++itn)
+ {
+ int oldId = *itn;
+ if (nodeDomains[oldId].count(idom))
+ {
+ localClonedNodeIds[oldId] = nodeDomains[oldId][idom];
+ //MESSAGE(" node " << oldId << " --> " << localClonedNodeIds[oldId]);
+ }
+ }
+ meshDS->ModifyCellNodes(vtkVolId, localClonedNodeIds);
+ }
}
- else // new in set == encountered for the first time: add
+ }
+
+ meshDS->CleanDownWardConnectivity(); // Mesh has been modified, downward connectivity is no more usable, free memory
+ grid->BuildLinks();
+
+ CHRONOSTOP(50);
+ counters::stats();
+ return true;
+}
+
+/*!
+ * \brief Double nodes on some external faces and create flat elements.
+ * Flat elements are mainly used by some types of mechanic calculations.
+ *
+ * Each group of the list must be constituted of faces.
+ * Triangles are transformed in prisms, and quadrangles in hexahedrons.
+ * @param theElems - list of groups of faces, where a group of faces is a set of
+ * SMDS_MeshElements sorted by Id.
+ * @return TRUE if operation has been completed successfully, FALSE otherwise
+ */
+bool SMESH_MeshEditor::CreateFlatElementsOnFacesGroups(const std::vector<TIDSortedElemSet>& theElems)
+{
+ MESSAGE("-------------------------------------------------");
+ MESSAGE("SMESH_MeshEditor::CreateFlatElementsOnFacesGroups");
+ MESSAGE("-------------------------------------------------");
+
+ SMESHDS_Mesh *meshDS = this->myMesh->GetMeshDS();
+
+ // --- For each group of faces
+ // duplicate the nodes, create a flat element based on the face
+ // replace the nodes of the faces by their clones
+
+ std::map<const SMDS_MeshNode*, const SMDS_MeshNode*> clonedNodes;
+ std::map<const SMDS_MeshNode*, const SMDS_MeshNode*> intermediateNodes;
+ clonedNodes.clear();
+ intermediateNodes.clear();
+ std::map<std::string, SMESH_Group*> mapOfJunctionGroups;
+ mapOfJunctionGroups.clear();
+
+ for (int idom = 0; idom < theElems.size(); idom++)
+ {
+ const TIDSortedElemSet& domain = theElems[idom];
+ TIDSortedElemSet::const_iterator elemItr = domain.begin();
+ for (; elemItr != domain.end(); ++elemItr)
{
- //const SMDS_MeshNode* n1 = nodes[ iNode ];
- //const SMDS_MeshNode* n2 = nodes[ iNode + 1];
- const SMDS_MeshNode* n1 = fnodes1[ iNode ];
- const SMDS_MeshNode* n2 = fnodes1[ iNode + 1];
- linkList[0].push_back ( NLink( n1, n2 ));
- linkList[1].push_back ( NLink( nReplaceMap[n1], nReplaceMap[n2] ));
- }
- }
- } // 2 faces found
- } // loop on link lists
+ SMDS_MeshElement* anElem = (SMDS_MeshElement*) *elemItr;
+ SMDS_MeshFace* aFace = dynamic_cast<SMDS_MeshFace*> (anElem);
+ if (!aFace)
+ continue;
+ // MESSAGE("aFace=" << aFace->GetID());
+ bool isQuad = aFace->IsQuadratic();
+ vector<const SMDS_MeshNode*> ln0, ln1, ln2, ln3, ln4;
- if ( aResult == SEW_OK &&
- ( linkIt[0] != linkList[0].end() ||
- !faceSetPtr[0]->empty() || !faceSetPtr[1]->empty() )) {
- MESSAGE( (linkIt[0] != linkList[0].end()) <<" "<< (faceSetPtr[0]->empty()) <<
- " " << (faceSetPtr[1]->empty()));
- aResult = SEW_TOPO_DIFF_SETS_OF_ELEMENTS;
- }
+ // --- clone the nodes, create intermediate nodes for non medium nodes of a quad face
- // ====================================================================
- // 3. Replace nodes in elements of the side 1 and remove replaced nodes
- // ====================================================================
+ SMDS_ElemIteratorPtr nodeIt = aFace->nodesIterator();
+ while (nodeIt->more())
+ {
+ const SMDS_MeshNode* node = static_cast<const SMDS_MeshNode*> (nodeIt->next());
+ bool isMedium = isQuad && (aFace->IsMediumNode(node));
+ if (isMedium)
+ ln2.push_back(node);
+ else
+ ln0.push_back(node);
- // delete temporary faces: they are in reverseElements of actual nodes
- SMDS_FaceIteratorPtr tmpFaceIt = aTmpFacesMesh.facesIterator();
- while ( tmpFaceIt->more() )
- aTmpFacesMesh.RemoveElement( tmpFaceIt->next() );
+ const SMDS_MeshNode* clone = 0;
+ if (!clonedNodes.count(node))
+ {
+ clone = meshDS->AddNode(node->X(), node->Y(), node->Z());
+ clonedNodes[node] = clone;
+ }
+ else
+ clone = clonedNodes[node];
- if ( aResult != SEW_OK)
- return aResult;
+ if (isMedium)
+ ln3.push_back(clone);
+ else
+ ln1.push_back(clone);
+
+ const SMDS_MeshNode* inter = 0;
+ if (isQuad && (!isMedium))
+ {
+ if (!intermediateNodes.count(node))
+ {
+ inter = meshDS->AddNode(node->X(), node->Y(), node->Z());
+ intermediateNodes[node] = inter;
+ }
+ else
+ inter = intermediateNodes[node];
+ ln4.push_back(inter);
+ }
+ }
- list< int > nodeIDsToRemove/*, elemIDsToRemove*/;
- // loop on nodes replacement map
- TNodeNodeMap::iterator nReplaceMapIt = nReplaceMap.begin(), nnIt;
- for ( ; nReplaceMapIt != nReplaceMap.end(); nReplaceMapIt++ )
- if ( (*nReplaceMapIt).first != (*nReplaceMapIt).second ) {
- const SMDS_MeshNode* nToRemove = (*nReplaceMapIt).first;
- nodeIDsToRemove.push_back( nToRemove->GetID() );
- // loop on elements sharing nToRemove
- SMDS_ElemIteratorPtr invElemIt = nToRemove->GetInverseElementIterator();
- while ( invElemIt->more() ) {
- const SMDS_MeshElement* e = invElemIt->next();
- // get a new suite of nodes: make replacement
- int nbReplaced = 0, i = 0, nbNodes = e->NbNodes();
- vector< const SMDS_MeshNode*> nodes( nbNodes );
- SMDS_ElemIteratorPtr nIt = e->nodesIterator();
- while ( nIt->more() ) {
- const SMDS_MeshNode* n =
- static_cast<const SMDS_MeshNode*>( nIt->next() );
- nnIt = nReplaceMap.find( n );
- if ( nnIt != nReplaceMap.end() ) {
- nbReplaced++;
- n = (*nnIt).second;
+ // --- extrude the face
+
+ vector<const SMDS_MeshNode*> ln;
+ SMDS_MeshVolume* vol = 0;
+ vtkIdType aType = aFace->GetVtkType();
+ switch (aType)
+ {
+ case VTK_TRIANGLE:
+ vol = meshDS->AddVolume(ln0[2], ln0[1], ln0[0], ln1[2], ln1[1], ln1[0]);
+ // MESSAGE("vol prism " << vol->GetID());
+ ln.push_back(ln1[0]);
+ ln.push_back(ln1[1]);
+ ln.push_back(ln1[2]);
+ break;
+ case VTK_QUAD:
+ vol = meshDS->AddVolume(ln0[3], ln0[2], ln0[1], ln0[0], ln1[3], ln1[2], ln1[1], ln1[0]);
+ // MESSAGE("vol hexa " << vol->GetID());
+ ln.push_back(ln1[0]);
+ ln.push_back(ln1[1]);
+ ln.push_back(ln1[2]);
+ ln.push_back(ln1[3]);
+ break;
+ case VTK_QUADRATIC_TRIANGLE:
+ vol = meshDS->AddVolume(ln1[0], ln1[1], ln1[2], ln0[0], ln0[1], ln0[2], ln3[0], ln3[1], ln3[2],
+ ln2[0], ln2[1], ln2[2], ln4[0], ln4[1], ln4[2]);
+ // MESSAGE("vol quad prism " << vol->GetID());
+ ln.push_back(ln1[0]);
+ ln.push_back(ln1[1]);
+ ln.push_back(ln1[2]);
+ ln.push_back(ln3[0]);
+ ln.push_back(ln3[1]);
+ ln.push_back(ln3[2]);
+ break;
+ case VTK_QUADRATIC_QUAD:
+// vol = meshDS->AddVolume(ln0[0], ln0[1], ln0[2], ln0[3], ln1[0], ln1[1], ln1[2], ln1[3],
+// ln2[0], ln2[1], ln2[2], ln2[3], ln3[0], ln3[1], ln3[2], ln3[3],
+// ln4[0], ln4[1], ln4[2], ln4[3]);
+ vol = meshDS->AddVolume(ln1[0], ln1[1], ln1[2], ln1[3], ln0[0], ln0[1], ln0[2], ln0[3],
+ ln3[0], ln3[1], ln3[2], ln3[3], ln2[0], ln2[1], ln2[2], ln2[3],
+ ln4[0], ln4[1], ln4[2], ln4[3]);
+ // MESSAGE("vol quad hexa " << vol->GetID());
+ ln.push_back(ln1[0]);
+ ln.push_back(ln1[1]);
+ ln.push_back(ln1[2]);
+ ln.push_back(ln1[3]);
+ ln.push_back(ln3[0]);
+ ln.push_back(ln3[1]);
+ ln.push_back(ln3[2]);
+ ln.push_back(ln3[3]);
+ break;
+ case VTK_POLYGON:
+ break;
+ default:
+ break;
}
- nodes[ i++ ] = n;
- }
- // if ( nbReplaced == nbNodes && e->GetType() == SMDSAbs_Face )
- // elemIDsToRemove.push_back( e->GetID() );
- // else
- if ( nbReplaced )
- aMesh->ChangeElementNodes( e, & nodes[0], nbNodes );
- }
- }
- Remove( nodeIDsToRemove, true );
+ if (vol)
+ {
+ stringstream grpname;
+ grpname << "jf_";
+ grpname << idom;
+ int idg;
+ string namegrp = grpname.str();
+ if (!mapOfJunctionGroups.count(namegrp))
+ mapOfJunctionGroups[namegrp] = this->myMesh->AddGroup(SMDSAbs_Volume, namegrp.c_str(), idg);
+ SMESHDS_Group *sgrp = dynamic_cast<SMESHDS_Group*>(mapOfJunctionGroups[namegrp]->GetGroupDS());
+ if (sgrp)
+ sgrp->Add(vol->GetID());
+ }
- return aResult;
+ // --- modify the face
+
+ aFace->ChangeNodes(&ln[0], ln.size());
+ }
+ }
+ return true;
}
//================================================================================
- /*!
- * \brief Find corresponding nodes in two sets of faces
- * \param theSide1 - first face set
- * \param theSide2 - second first face
- * \param theFirstNode1 - a boundary node of set 1
- * \param theFirstNode2 - a node of set 2 corresponding to theFirstNode1
- * \param theSecondNode1 - a boundary node of set 1 linked with theFirstNode1
- * \param theSecondNode2 - a node of set 2 corresponding to theSecondNode1
- * \param nReplaceMap - output map of corresponding nodes
- * \retval bool - is a success or not
- */
+/*!
+ * \brief Generates skin mesh (containing 2D cells) from 3D mesh
+ * The created 2D mesh elements based on nodes of free faces of boundary volumes
+ * \return TRUE if operation has been completed successfully, FALSE otherwise
+ */
//================================================================================
-#ifdef _DEBUG_
-//#define DEBUG_MATCHING_NODES
-#endif
-
-SMESH_MeshEditor::Sew_Error
-SMESH_MeshEditor::FindMatchingNodes(set<const SMDS_MeshElement*>& theSide1,
- set<const SMDS_MeshElement*>& theSide2,
- const SMDS_MeshNode* theFirstNode1,
- const SMDS_MeshNode* theFirstNode2,
- const SMDS_MeshNode* theSecondNode1,
- const SMDS_MeshNode* theSecondNode2,
- TNodeNodeMap & nReplaceMap)
+bool SMESH_MeshEditor::Make2DMeshFrom3D()
{
- set<const SMDS_MeshElement*> * faceSetPtr[] = { &theSide1, &theSide2 };
-
- nReplaceMap.clear();
- if ( theFirstNode1 != theFirstNode2 )
- nReplaceMap.insert( make_pair( theFirstNode1, theFirstNode2 ));
- if ( theSecondNode1 != theSecondNode2 )
- nReplaceMap.insert( make_pair( theSecondNode1, theSecondNode2 ));
-
- set< TLink > linkSet; // set of nodes where order of nodes is ignored
- linkSet.insert( TLink( theFirstNode1, theSecondNode1 ));
-
- list< NLink > linkList[2];
- linkList[0].push_back( NLink( theFirstNode1, theSecondNode1 ));
- linkList[1].push_back( NLink( theFirstNode2, theSecondNode2 ));
+ // iterates on volume elements and detect all free faces on them
+ SMESHDS_Mesh* aMesh = GetMeshDS();
+ if (!aMesh)
+ return false;
+ //bool res = false;
+ int nbFree = 0, nbExisted = 0, nbCreated = 0;
+ SMDS_VolumeIteratorPtr vIt = aMesh->volumesIterator();
+ while(vIt->more())
+ {
+ const SMDS_MeshVolume* volume = vIt->next();
+ SMDS_VolumeTool vTool( volume, /*ignoreCentralNodes=*/false );
+ vTool.SetExternalNormal();
+ //const bool isPoly = volume->IsPoly();
+ const int iQuad = volume->IsQuadratic();
+ for ( int iface = 0, n = vTool.NbFaces(); iface < n; iface++ )
+ {
+ if (!vTool.IsFreeFace(iface))
+ continue;
+ nbFree++;
+ vector<const SMDS_MeshNode *> nodes;
+ int nbFaceNodes = vTool.NbFaceNodes(iface);
+ const SMDS_MeshNode** faceNodes = vTool.GetFaceNodes(iface);
+ int inode = 0;
+ for ( ; inode < nbFaceNodes; inode += iQuad+1)
+ nodes.push_back(faceNodes[inode]);
+ if (iQuad) { // add medium nodes
+ for ( inode = 1; inode < nbFaceNodes; inode += 2)
+ nodes.push_back(faceNodes[inode]);
+ if ( nbFaceNodes == 9 ) // bi-quadratic quad
+ nodes.push_back(faceNodes[8]);
+ }
+ // add new face based on volume nodes
+ if (aMesh->FindElement( nodes, SMDSAbs_Face, /*noMedium=*/false) ) {
+ nbExisted++;
+ continue; // face already exsist
+ }
+ AddElement(nodes, SMDSAbs_Face, ( !iQuad && nbFaceNodes/(iQuad+1) > 4 ));
+ nbCreated++;
+ }
+ }
+ return ( nbFree==(nbExisted+nbCreated) );
+}
- // loop on links in linkList; find faces by links and append links
- // of the found faces to linkList
- list< NLink >::iterator linkIt[] = { linkList[0].begin(), linkList[1].begin() } ;
- for ( ; linkIt[0] != linkList[0].end(); linkIt[0]++, linkIt[1]++ ) {
- NLink link[] = { *linkIt[0], *linkIt[1] };
- if ( linkSet.find( link[0] ) == linkSet.end() )
- continue;
+namespace
+{
+ inline const SMDS_MeshNode* getNodeWithSameID(SMESHDS_Mesh* mesh, const SMDS_MeshNode* node)
+ {
+ if ( const SMDS_MeshNode* n = mesh->FindNode( node->GetID() ))
+ return n;
+ return mesh->AddNodeWithID( node->X(),node->Y(),node->Z(), node->GetID() );
+ }
+}
+//================================================================================
+/*!
+ * \brief Creates missing boundary elements
+ * \param elements - elements whose boundary is to be checked
+ * \param dimension - defines type of boundary elements to create
+ * \param group - a group to store created boundary elements in
+ * \param targetMesh - a mesh to store created boundary elements in
+ * \param toCopyElements - if true, the checked elements will be copied into the targetMesh
+ * \param toCopyExistingBoundary - if true, not only new but also pre-existing
+ * boundary elements will be copied into the targetMesh
+ * \param toAddExistingBondary - if true, not only new but also pre-existing
+ * boundary elements will be added into the new group
+ * \param aroundElements - if true, elements will be created on boundary of given
+ * elements else, on boundary of the whole mesh.
+ * \return nb of added boundary elements
+ */
+//================================================================================
- // by links, find faces in the face sets,
- // and find indices of link nodes in the found faces;
- // in a face set, there is only one or no face sharing a link
- // ---------------------------------------------------------------
+int SMESH_MeshEditor::MakeBoundaryMesh(const TIDSortedElemSet& elements,
+ Bnd_Dimension dimension,
+ SMESH_Group* group/*=0*/,
+ SMESH_Mesh* targetMesh/*=0*/,
+ bool toCopyElements/*=false*/,
+ bool toCopyExistingBoundary/*=false*/,
+ bool toAddExistingBondary/*= false*/,
+ bool aroundElements/*= false*/)
+{
+ SMDSAbs_ElementType missType = (dimension == BND_2DFROM3D) ? SMDSAbs_Face : SMDSAbs_Edge;
+ SMDSAbs_ElementType elemType = (dimension == BND_1DFROM2D) ? SMDSAbs_Face : SMDSAbs_Volume;
+ // hope that all elements are of the same type, do not check them all
+ if ( !elements.empty() && (*elements.begin())->GetType() != elemType )
+ throw SALOME_Exception(LOCALIZED("wrong element type"));
+
+ if ( !targetMesh )
+ toCopyElements = toCopyExistingBoundary = false;
+
+ SMESH_MeshEditor tgtEditor( targetMesh ? targetMesh : myMesh );
+ SMESHDS_Mesh* aMesh = GetMeshDS(), *tgtMeshDS = tgtEditor.GetMeshDS();
+ int nbAddedBnd = 0;
+
+ // editor adding present bnd elements and optionally holding elements to add to the group
+ SMESH_MeshEditor* presentEditor;
+ SMESH_MeshEditor tgtEditor2( tgtEditor.GetMesh() );
+ presentEditor = toAddExistingBondary ? &tgtEditor : &tgtEditor2;
+
+ SMDS_VolumeTool vTool;
+ TIDSortedElemSet avoidSet;
+ const TIDSortedElemSet emptySet, *elemSet = aroundElements ? &elements : &emptySet;
+ int inode;
+
+ typedef vector<const SMDS_MeshNode*> TConnectivity;
+
+ SMDS_ElemIteratorPtr eIt;
+ if (elements.empty())
+ eIt = aMesh->elementsIterator(elemType);
+ else
+ eIt = SMDS_ElemIteratorPtr( new TSetIterator( elements.begin(), elements.end() ));
- const SMDS_MeshElement* face[] = { 0, 0 };
- list<const SMDS_MeshNode*> notLinkNodes[2];
- //bool reverse[] = { false, false }; // order of notLinkNodes
- int nbNodes[2];
- for ( int iSide = 0; iSide < 2; iSide++ ) // loop on 2 sides
+ while (eIt->more())
+ {
+ const SMDS_MeshElement* elem = eIt->next();
+ const int iQuad = elem->IsQuadratic();
+
+ // ------------------------------------------------------------------------------------
+ // 1. For an elem, get present bnd elements and connectivities of missing bnd elements
+ // ------------------------------------------------------------------------------------
+ vector<const SMDS_MeshElement*> presentBndElems;
+ vector<TConnectivity> missingBndElems;
+ TConnectivity nodes;
+ if ( vTool.Set(elem, /*ignoreCentralNodes=*/true) ) // elem is a volume --------------
{
- const SMDS_MeshNode* n1 = link[iSide].first;
- const SMDS_MeshNode* n2 = link[iSide].second;
- set<const SMDS_MeshElement*> * faceSet = faceSetPtr[ iSide ];
- set< const SMDS_MeshElement* > facesOfNode1;
- for ( int iNode = 0; iNode < 2; iNode++ ) // loop on 2 nodes of a link
+ vTool.SetExternalNormal();
+ const SMDS_MeshElement* otherVol = 0;
+ for ( int iface = 0, n = vTool.NbFaces(); iface < n; iface++ )
{
- // during a loop of the first node, we find all faces around n1,
- // during a loop of the second node, we find one face sharing both n1 and n2
- const SMDS_MeshNode* n = iNode ? n1 : n2; // a node of a link
- SMDS_ElemIteratorPtr fIt = n->GetInverseElementIterator(SMDSAbs_Face);
- while ( fIt->more() ) { // loop on faces sharing a node
- const SMDS_MeshElement* f = fIt->next();
- if (faceSet->find( f ) != faceSet->end() && // f is in face set
- ! facesOfNode1.insert( f ).second ) // f encounters twice
+ if ( !vTool.IsFreeFace(iface, &otherVol) &&
+ ( !aroundElements || elements.count( otherVol )))
+ continue;
+ const int nbFaceNodes = vTool.NbFaceNodes(iface);
+ const SMDS_MeshNode** nn = vTool.GetFaceNodes(iface);
+ if ( missType == SMDSAbs_Edge ) // boundary edges
+ {
+ nodes.resize( 2+iQuad );
+ for ( int i = 0; i < nbFaceNodes; i += 1+iQuad)
{
- if ( face[ iSide ] ) {
- MESSAGE( "2 faces per link " );
- return ( iSide ? SEW_BAD_SIDE2_NODES : SEW_BAD_SIDE1_NODES );
- }
- face[ iSide ] = f;
- faceSet->erase( f );
+ for ( int j = 0; j < nodes.size(); ++j )
+ nodes[j] =nn[i+j];
+ if ( const SMDS_MeshElement* edge =
+ aMesh->FindElement(nodes,SMDSAbs_Edge,/*noMedium=*/false))
+ presentBndElems.push_back( edge );
+ else
+ missingBndElems.push_back( nodes );
+ }
+ }
+ else // boundary face
+ {
+ nodes.clear();
+ for ( inode = 0; inode < nbFaceNodes; inode += 1+iQuad)
+ nodes.push_back( nn[inode] );
+ if (iQuad) // add medium nodes
+ for ( inode = 1; inode < nbFaceNodes; inode += 2)
+ nodes.push_back( nn[inode] );
+ int iCenter = vTool.GetCenterNodeIndex(iface); // for HEX27
+ if ( iCenter > 0 )
+ nodes.push_back( vTool.GetNodes()[ iCenter ] );
+
+ if (const SMDS_MeshElement * f = aMesh->FindElement( nodes,
+ SMDSAbs_Face, /*noMedium=*/false ))
+ presentBndElems.push_back( f );
+ else
+ missingBndElems.push_back( nodes );
- // get not link nodes
- int nbN = f->NbNodes();
- if ( f->IsQuadratic() )
- nbN /= 2;
- nbNodes[ iSide ] = nbN;
- list< const SMDS_MeshNode* > & nodes = notLinkNodes[ iSide ];
- int i1 = f->GetNodeIndex( n1 );
- int i2 = f->GetNodeIndex( n2 );
- int iEnd = nbN, iBeg = -1, iDelta = 1;
- bool reverse = ( Abs( i1 - i2 ) == 1 ? i1 > i2 : i2 > i1 );
- if ( reverse ) {
- std::swap( iEnd, iBeg ); iDelta = -1;
- }
- int i = i2;
- while ( true ) {
- i += iDelta;
- if ( i == iEnd ) i = iBeg + iDelta;
- if ( i == i1 ) break;
- nodes.push_back ( f->GetNode( i ) );
+ if ( targetMesh != myMesh )
+ {
+ // add 1D elements on face boundary to be added to a new mesh
+ const SMDS_MeshElement* edge;
+ for ( inode = 0; inode < nbFaceNodes; inode += 1+iQuad)
+ {
+ if ( iQuad )
+ edge = aMesh->FindEdge( nn[inode], nn[inode+1], nn[inode+2]);
+ else
+ edge = aMesh->FindEdge( nn[inode], nn[inode+1]);
+ if ( edge && avoidSet.insert( edge ).second )
+ presentBndElems.push_back( edge );
}
}
}
}
}
- // check similarity of elements of the sides
- if (( face[0] && !face[1] ) || ( !face[0] && face[1] )) {
- MESSAGE("Correspondent face not found on side " << ( face[0] ? 1 : 0 ));
- if ( nReplaceMap.size() == 2 ) { // faces on input nodes not found
- return ( face[0] ? SEW_BAD_SIDE2_NODES : SEW_BAD_SIDE1_NODES );
- }
- else {
- return SEW_TOPO_DIFF_SETS_OF_ELEMENTS;
+ else // elem is a face ------------------------------------------
+ {
+ avoidSet.clear(), avoidSet.insert( elem );
+ int nbNodes = elem->NbCornerNodes();
+ nodes.resize( 2 /*+ iQuad*/);
+ for ( int i = 0; i < nbNodes; i++ )
+ {
+ nodes[0] = elem->GetNode(i);
+ nodes[1] = elem->GetNode((i+1)%nbNodes);
+ if ( FindFaceInSet( nodes[0], nodes[1], *elemSet, avoidSet))
+ continue; // not free link
+
+ //if ( iQuad )
+ //nodes[2] = elem->GetNode( i + nbNodes );
+ if ( const SMDS_MeshElement* edge =
+ aMesh->FindElement(nodes,SMDSAbs_Edge,/*noMedium=*/true))
+ presentBndElems.push_back( edge );
+ else
+ missingBndElems.push_back( nodes );
}
}
- // set nodes to merge
- // -------------------
-
- if ( face[0] && face[1] ) {
- if ( nbNodes[0] != nbNodes[1] ) {
- MESSAGE("Diff nb of face nodes");
- return SEW_TOPO_DIFF_SETS_OF_ELEMENTS;
+ // ---------------------------------
+ // 2. Add missing boundary elements
+ // ---------------------------------
+ if ( targetMesh != myMesh )
+ // instead of making a map of nodes in this mesh and targetMesh,
+ // we create nodes with same IDs.
+ for ( int i = 0; i < missingBndElems.size(); ++i )
+ {
+ TConnectivity& srcNodes = missingBndElems[i];
+ TConnectivity nodes( srcNodes.size() );
+ for ( inode = 0; inode < nodes.size(); ++inode )
+ nodes[inode] = getNodeWithSameID( tgtMeshDS, srcNodes[inode] );
+ if ( aroundElements && tgtEditor.GetMeshDS()->FindElement( nodes,
+ missType,
+ /*noMedium=*/false))
+ continue;
+ tgtEditor.AddElement(nodes, missType, !iQuad && nodes.size()/(iQuad+1)>4);
+ ++nbAddedBnd;
}
-#ifdef DEBUG_MATCHING_NODES
- cout << " Link 1: " << link[0].first->GetID() <<" "<< link[0].second->GetID()
- << " F 1: " << face[0];
- cout << "| Link 2: " << link[1].first->GetID() <<" "<< link[1].second->GetID()
- << " F 2: " << face[1] << " | Bind: "<<endl ;
-#endif
- int nbN = nbNodes[0];
+ else
+ for ( int i = 0; i < missingBndElems.size(); ++i )
{
- list<const SMDS_MeshNode*>::iterator n1 = notLinkNodes[0].begin();
- list<const SMDS_MeshNode*>::iterator n2 = notLinkNodes[1].begin();
- for ( int i = 0 ; i < nbN - 2; ++i ) {
-#ifdef DEBUG_MATCHING_NODES
- cout << (*n1)->GetID() << " to " << (*n2)->GetID() << endl;
-#endif
- nReplaceMap.insert( make_pair( *(n1++), *(n2++) ));
- }
+ TConnectivity& nodes = missingBndElems[i];
+ if ( aroundElements && tgtEditor.GetMeshDS()->FindElement( nodes,
+ missType,
+ /*noMedium=*/false))
+ continue;
+ tgtEditor.AddElement(nodes, missType, !iQuad && nodes.size()/(iQuad+1)>4);
+ ++nbAddedBnd;
}
- // add other links of the face 1 to linkList
- // -----------------------------------------
-
- const SMDS_MeshElement* f0 = face[0];
- const SMDS_MeshNode* n1 = f0->GetNode( nbN - 1 );
- for ( int i = 0; i < nbN; i++ )
+ // ----------------------------------
+ // 3. Copy present boundary elements
+ // ----------------------------------
+ if ( toCopyExistingBoundary )
+ for ( int i = 0 ; i < presentBndElems.size(); ++i )
{
- const SMDS_MeshNode* n2 = f0->GetNode( i );
- pair< set< TLink >::iterator, bool > iter_isnew =
- linkSet.insert( TLink( n1, n2 ));
- if ( !iter_isnew.second ) { // already in a set: no need to process
- linkSet.erase( iter_isnew.first );
- }
- else // new in set == encountered for the first time: add
- {
-#ifdef DEBUG_MATCHING_NODES
- cout << "Add link 1: " << n1->GetID() << " " << n2->GetID() << " ";
- cout << " | link 2: " << nReplaceMap[n1]->GetID() << " " << nReplaceMap[n2]->GetID() << " " << endl;
-#endif
- linkList[0].push_back ( NLink( n1, n2 ));
- linkList[1].push_back ( NLink( nReplaceMap[n1], nReplaceMap[n2] ));
- }
- n1 = n2;
+ const SMDS_MeshElement* e = presentBndElems[i];
+ TConnectivity nodes( e->NbNodes() );
+ for ( inode = 0; inode < nodes.size(); ++inode )
+ nodes[inode] = getNodeWithSameID( tgtMeshDS, e->GetNode(inode) );
+ presentEditor->AddElement(nodes, e->GetType(), e->IsPoly());
+ }
+ else // store present elements to add them to a group
+ for ( int i = 0 ; i < presentBndElems.size(); ++i )
+ {
+ presentEditor->myLastCreatedElems.Append(presentBndElems[i]);
}
- } // 2 faces found
- } // loop on link lists
+
+ } // loop on given elements
- return SEW_OK;
+ // ---------------------------------------------
+ // 4. Fill group with boundary elements
+ // ---------------------------------------------
+ if ( group )
+ {
+ if ( SMESHDS_Group* g = dynamic_cast<SMESHDS_Group*>( group->GetGroupDS() ))
+ for ( int i = 0; i < tgtEditor.myLastCreatedElems.Size(); ++i )
+ g->SMDSGroup().Add( tgtEditor.myLastCreatedElems( i+1 ));
+ }
+ tgtEditor.myLastCreatedElems.Clear();
+ tgtEditor2.myLastCreatedElems.Clear();
+
+ // -----------------------
+ // 5. Copy given elements
+ // -----------------------
+ if ( toCopyElements && targetMesh != myMesh )
+ {
+ if (elements.empty())
+ eIt = aMesh->elementsIterator(elemType);
+ else
+ eIt = SMDS_ElemIteratorPtr( new TSetIterator( elements.begin(), elements.end() ));
+ while (eIt->more())
+ {
+ const SMDS_MeshElement* elem = eIt->next();
+ TConnectivity nodes( elem->NbNodes() );
+ for ( inode = 0; inode < nodes.size(); ++inode )
+ nodes[inode] = getNodeWithSameID( tgtMeshDS, elem->GetNode(inode) );
+ tgtEditor.AddElement(nodes, elemType, elem->IsPoly());
+
+ tgtEditor.myLastCreatedElems.Clear();
+ }
+ }
+ return nbAddedBnd;
}