-// Copyright (C) 2007-2014 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2021 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
-// SMESH SMESH : implementaion of SMESH idl descriptions
+// SMESH SMESH : implementation of SMESH idl descriptions
// File : StdMeshers_Projection_2D.cxx
// Module : SMESH
// Created : Fri Oct 20 11:37:07 2006
#include "SMDS_EdgePosition.hxx"
#include "SMDS_FacePosition.hxx"
#include "SMESHDS_Hypothesis.hxx"
+#include "SMESHDS_Mesh.hxx"
#include "SMESHDS_SubMesh.hxx"
#include "SMESH_Block.hxx"
#include "SMESH_Comment.hxx"
#include "SMESH_Gen.hxx"
#include "SMESH_Mesh.hxx"
+#include "SMESH_MeshAlgos.hxx"
+#include "SMESH_MeshEditor.hxx"
#include "SMESH_MesherHelper.hxx"
#include "SMESH_Pattern.hxx"
#include "SMESH_subMesh.hxx"
#include "SMESH_subMeshEventListener.hxx"
-#include "utilities.h"
+#include <utilities.h>
+#include <BRepAdaptor_Curve.hxx>
+#include <BRepAdaptor_Surface.hxx>
+#include <BRepMesh_Delaun.hxx>
#include <BRep_Tool.hxx>
#include <Bnd_B2d.hxx>
+#include <GeomAPI_ExtremaCurveCurve.hxx>
+#include <GeomAPI_ProjectPointOnSurf.hxx>
+#include <GeomAdaptor_Curve.hxx>
+#include <GeomAdaptor_HCurve.hxx>
+#include <GeomAdaptor_HSurface.hxx>
+#include <GeomAdaptor_Surface.hxx>
+#include <GeomLib_IsPlanarSurface.hxx>
+#include <Geom_Line.hxx>
+#include <IntCurveSurface_HInter.hxx>
+#include <Precision.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_DataMapIteratorOfDataMapOfShapeShape.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
+#include <TopTools_MapOfShape.hxx>
#include <TopoDS.hxx>
+#include <TopoDS_Solid.hxx>
#include <gp_Ax2.hxx>
#include <gp_Ax3.hxx>
+#include <gp_GTrsf.hxx>
using namespace std;
#define RETURN_BAD_RESULT(msg) { MESSAGE(")-: Error: " << msg); return false; }
+#ifdef _DEBUG_
+// enable printing algo + projection shapes while meshing
+//#define PRINT_WHO_COMPUTE_WHAT
+#endif
namespace TAssocTool = StdMeshers_ProjectionUtils;
//typedef StdMeshers_ProjectionUtils TAssocTool;
+// allow range iteration on NCollection_IndexedMap
+template < class IMAP >
+typename IMAP::const_iterator begin( const IMAP & m ) { return m.cbegin(); }
+template < class IMAP >
+typename IMAP::const_iterator end( const IMAP & m ) { return m.cend(); }
+
//=======================================================================
//function : StdMeshers_Projection_2D
-//purpose :
+//purpose :
//=======================================================================
-StdMeshers_Projection_2D::StdMeshers_Projection_2D(int hypId, int studyId, SMESH_Gen* gen)
- :SMESH_2D_Algo(hypId, studyId, gen)
+StdMeshers_Projection_2D::StdMeshers_Projection_2D(int hypId, SMESH_Gen* gen)
+ :SMESH_2D_Algo(hypId, gen)
{
_name = "Projection_2D";
_compatibleHypothesis.push_back("ProjectionSource2D");
//=======================================================================
//function : CheckHypothesis
-//purpose :
+//purpose :
//=======================================================================
bool StdMeshers_Projection_2D::CheckHypothesis(SMESH_Mesh& theMesh,
*/
//================================================================================
- bool isOldNode( const SMDS_MeshNode* node/*, const bool is1DComputed*/ )
+ bool isOldNode( const SMDS_MeshNode* node )
{
// old nodes are shared by edges and new ones are shared
// only by faces created by mapper
//================================================================================
/*!
* \brief find new nodes belonging to one free border of mesh on face
- * \param sm - submesh on edge or vertex containg nodes to choose from
+ * \param sm - submesh on edge or vertex containing nodes to choose from
* \param face - the face bound by the submesh
* \param u2nodes - map to fill with nodes
* \param seamNodes - set of found nodes
//================================================================================
bool getBoundaryNodes ( SMESH_subMesh* sm,
- const TopoDS_Face& face,
+ const TopoDS_Face& /*face*/,
map< double, const SMDS_MeshNode* > & u2nodes,
set< const SMDS_MeshNode* > & seamNodes)
{
if ( node->GetPosition()->GetTypeOfPosition() != SMDS_TOP_EDGE )
RETURN_BAD_RESULT("Bad node position type: node " << node->GetID() <<
" pos type " << node->GetPosition()->GetTypeOfPosition());
- const SMDS_EdgePosition* pos =
- static_cast<const SMDS_EdgePosition*>(node->GetPosition());
+ SMDS_EdgePositionPtr pos = node->GetPosition();
u2nodes.insert( make_pair( pos->GetUParameter(), node ));
seamNodes.insert( node );
}
//================================================================================
/*!
- * \brief Preform projection in case if tgtFace.IsPartner( srcFace ) and in case
- * if projection by transformation is possible
+ * \brief Check if two consecutive EDGEs are connected in 2D
+ * \param [in] E1 - a well oriented non-seam EDGE
+ * \param [in] E2 - a possibly well oriented seam EDGE
+ * \param [in] F - a FACE
+ * \return bool - result
*/
//================================================================================
- bool projectPartner(const TopoDS_Face& tgtFace,
- const TopoDS_Face& srcFace,
- SMESH_Mesh * tgtMesh,
- SMESH_Mesh * srcMesh,
- const TAssocTool::TShapeShapeMap& shape2ShapeMap)
+ bool are2dConnected( const TopoDS_Edge & E1,
+ const TopoDS_Edge & E2,
+ const TopoDS_Face & F )
{
- SMESHDS_Mesh* tgtMeshDS = tgtMesh->GetMeshDS();
- SMESHDS_Mesh* srcMeshDS = srcMesh->GetMeshDS();
+ double f,l;
+ Handle(Geom2d_Curve) c1 = BRep_Tool::CurveOnSurface( E1, F, f, l );
+ gp_Pnt2d uvFirst1 = c1->Value( f );
+ gp_Pnt2d uvLast1 = c1->Value( l );
- const double tol = 1.e-7 * srcMeshDS->getMaxDim();
+ Handle(Geom2d_Curve) c2 = BRep_Tool::CurveOnSurface( E2, F, f, l );
+ gp_Pnt2d uvFirst2 = c2->Value( E2.Orientation() == TopAbs_REVERSED ? l : f );
+ double tol2 = Max( Precision::PConfusion() * Precision::PConfusion(),
+ 1e-5 * uvLast1.SquareDistance( uvFirst1 ));
- gp_Trsf trsf; // transformation to get location of target nodes from source ones
- if ( tgtFace.IsPartner( srcFace ))
- {
- gp_Trsf srcTrsf = srcFace.Location();
- gp_Trsf tgtTrsf = tgtFace.Location();
- trsf = srcTrsf.Inverted() * tgtTrsf;
- }
- else
+ return (( uvFirst2.SquareDistance( uvFirst1 ) < tol2 ) ||
+ ( uvFirst2.SquareDistance( uvLast1 ) < tol2 ));
+ }
+
+ //================================================================================
+ /*!
+ * \brief Compose TSideVector for both FACEs keeping matching order of EDGEs
+ * and fill src2tgtNodes map
+ */
+ //================================================================================
+
+ TError getWires(const TopoDS_Face& tgtFace,
+ const TopoDS_Face& srcFace,
+ SMESH_Mesh * tgtMesh,
+ SMESH_Mesh * srcMesh,
+ SMESH_MesherHelper* tgtHelper,
+ const TAssocTool::TShapeShapeMap& shape2ShapeMap,
+ TSideVector& srcWires,
+ TSideVector& tgtWires,
+ TAssocTool::TNodeNodeMap& src2tgtNodes,
+ bool& is1DComputed)
+ {
+ src2tgtNodes.clear();
+
+ // get ordered src EDGEs
+ TError err;
+ srcWires = StdMeshers_FaceSide::GetFaceWires( srcFace, *srcMesh,/*skipMediumNodes=*/0, err );
+ if (( err && !err->IsOK() ) ||
+ ( srcWires.empty() ))
+ return err;
+#ifdef PRINT_WHO_COMPUTE_WHAT
+ cout << "Projection_2D" << " F "
+ << tgtMesh->GetMeshDS()->ShapeToIndex( tgtFace ) << " <- "
+ << srcMesh->GetMeshDS()->ShapeToIndex( srcFace ) << endl;
+#endif
+
+ // make corresponding sequence of tgt EDGEs
+ tgtWires.resize( srcWires.size() );
+ for ( size_t iW = 0; iW < srcWires.size(); ++iW )
{
- // Try to find the transformation
-
- // make any local coord systems of src and tgt faces
- vector<gp_Pnt> srcPP, tgtPP; // 3 points on face boundaries to make axes of CS
- int tgtNbVert = SMESH_MesherHelper::Count( tgtFace, TopAbs_VERTEX, /*ignoreSame=*/true );
- int srcNbVert = SMESH_MesherHelper::Count( srcFace, TopAbs_VERTEX, /*ignoreSame=*/true );
- SMESH_subMesh * srcSM = srcMesh->GetSubMesh( srcFace );
- SMESH_subMeshIteratorPtr smIt = srcSM->getDependsOnIterator(/*includeSelf=*/false,false);
- srcSM = smIt->next(); // sm of a vertex
- while ( smIt->more() && srcPP.size() < 3 )
+ StdMeshers_FaceSidePtr srcWire = srcWires[iW];
+
+ list< TopoDS_Edge > tgtEdges;
+ TopTools_IndexedMapOfShape edgeMap; // to detect seam edges
+ for ( int iE = 0; iE < srcWire->NbEdges(); ++iE )
{
- srcSM = smIt->next();
- SMESHDS_SubMesh* srcSmds = srcSM->GetSubMeshDS();
- if ( !srcSmds ) continue;
- SMDS_NodeIteratorPtr nIt = srcSmds->GetNodes();
- while ( nIt->more() )
+ TopoDS_Edge srcE = srcWire->Edge( iE );
+ TopoDS_Edge tgtE = TopoDS::Edge( shape2ShapeMap( srcE, /*isSrc=*/true));
+ TopoDS_Shape srcEbis = shape2ShapeMap( tgtE, /*isSrc=*/false );
+ if ( srcE.Orientation() != srcEbis.Orientation() )
+ tgtE.Reverse();
+ // reverse a seam edge encountered for the second time
+ const int index = edgeMap.Add( tgtE );
+ if ( index < edgeMap.Extent() ) // E is a seam
{
- SMESH_TNodeXYZ p ( nIt->next());
- bool pOK = false;
- switch ( srcPP.size() )
+ // check which of edges to reverse, E or one already being in tgtEdges
+ if ( are2dConnected( tgtEdges.back(), tgtE, tgtFace ))
{
- case 0: pOK = true; break;
-
- case 1: pOK = ( srcPP[0].SquareDistance( p ) > 10*tol ); break;
-
- case 2:
- {
- gp_Vec p0p1( srcPP[0], srcPP[1] ), p0p( srcPP[0], p );
- // pOK = !p0p1.IsParallel( p0p, tol );
- pOK = !p0p1.IsParallel( p0p, 3.14/20 ); // angle min 18 degrees
- break;
- }
+ list< TopoDS_Edge >::iterator eIt = tgtEdges.begin();
+ std::advance( eIt, index-1 );
+ if ( are2dConnected( tgtEdges.back(), *eIt, tgtFace ))
+ eIt->Reverse();
}
- if ( !pOK )
- continue;
-
- // find corresponding point on target shape
- pOK = false;
- gp_Pnt tgtP;
- const TopoDS_Shape& tgtShape = shape2ShapeMap( srcSM->GetSubShape(), /*isSrc=*/true );
- if ( tgtShape.ShapeType() == TopAbs_VERTEX )
+ else
{
- tgtP = BRep_Tool::Pnt( TopoDS::Vertex( tgtShape ));
- if ( srcNbVert == tgtNbVert || tgtPP.empty() )
- pOK = true;
- else
- pOK = (( tgtP.Distance( tgtPP[0] ) > tol*tol ) &&
- ( tgtPP.size() == 1 || tgtP.Distance( tgtPP[1] ) > tol*tol ));
- //cout << "V - nS " << p._node->GetID() << " - nT " << SMESH_Algo::VertexNode(TopoDS::Vertex( tgtShape),tgtMeshDS)->GetID() << endl;
+ tgtE.Reverse();
}
- else if ( tgtPP.size() > 0 )
+ }
+ if ( srcWire->NbEdges() == 1 && tgtMesh == srcMesh ) // circle
+ {
+ // try to verify ori by propagation
+ pair<int,TopoDS_Edge> nE =
+ StdMeshers_ProjectionUtils::GetPropagationEdge( srcMesh, tgtE, srcE );
+ if ( !nE.second.IsNull() )
+ tgtE = nE.second;
+ }
+ tgtEdges.push_back( tgtE );
+ }
+
+ tgtWires[ iW ].reset( new StdMeshers_FaceSide( tgtFace, tgtEdges, tgtMesh,
+ /*theIsForward = */ true,
+ /*theIgnoreMediumNodes = */false,
+ tgtHelper ));
+ StdMeshers_FaceSidePtr tgtWire = tgtWires[ iW ];
+
+ // Fill map of src to tgt nodes with nodes on edges
+
+ for ( int iE = 0; iE < srcWire->NbEdges(); ++iE )
+ {
+#ifdef PRINT_WHO_COMPUTE_WHAT
+ if ( tgtMesh->GetSubMesh( tgtWire->Edge(iE) )->IsEmpty() )
+ cout << "Projection_2D" << " E "
+ << tgtWire->EdgeID(iE) << " <- " << srcWire->EdgeID(iE) << endl;
+#endif
+ if ( srcMesh->GetSubMesh( srcWire->Edge(iE) )->IsEmpty() ||
+ tgtMesh->GetSubMesh( tgtWire->Edge(iE) )->IsEmpty() )
+ {
+ // add nodes on VERTEXes for a case of not meshes EDGEs
+ const SMDS_MeshNode* srcN = srcWire->VertexNode( iE );
+ const SMDS_MeshNode* tgtN = tgtWire->VertexNode( iE );
+ if ( srcN && tgtN )
+ src2tgtNodes.insert( make_pair( srcN, tgtN ));
+ }
+ else
+ {
+ const bool skipMedium = true, isFwd = true;
+ StdMeshers_FaceSide srcEdge( srcFace, srcWire->Edge(iE),
+ srcMesh, isFwd, skipMedium, srcWires[0]->FaceHelper() );
+ StdMeshers_FaceSide tgtEdge( tgtFace, tgtWire->Edge(iE),
+ tgtMesh, isFwd, skipMedium, tgtHelper);
+
+ vector< const SMDS_MeshNode* > srcNodes = srcEdge.GetOrderedNodes();
+ vector< const SMDS_MeshNode* > tgtNodes = tgtEdge.GetOrderedNodes();
+
+ if (( srcNodes.size() != tgtNodes.size() ) && tgtNodes.size() > 0 )
+ return SMESH_ComputeError::New( COMPERR_BAD_INPUT_MESH,
+ "Different number of nodes on edges");
+ if ( !tgtNodes.empty() )
{
- if ( SMESHDS_SubMesh* tgtSmds = tgtMeshDS->MeshElements( tgtShape ))
+ vector< const SMDS_MeshNode* >::iterator tn = tgtNodes.begin();
+ //if ( srcWire->Edge(iE).Orientation() == tgtWire->Edge(iE).Orientation() )
{
- double srcDist = srcPP[0].Distance( p );
- double eTol = BRep_Tool::Tolerance( TopoDS::Edge( tgtShape ));
- if (eTol < tol) eTol = tol;
- SMDS_NodeIteratorPtr nItT = tgtSmds->GetNodes();
- while ( nItT->more() && !pOK )
- {
- const SMDS_MeshNode* n = nItT->next();
- tgtP = SMESH_TNodeXYZ( n );
- pOK = ( fabs( srcDist - tgtPP[0].Distance( tgtP )) < 2*eTol );
- //cout << "E - nS " << p._node->GetID() << " - nT " << n->GetID()<< " OK - " << pOK<< " " << fabs( srcDist - tgtPP[0].Distance( tgtP ))<< " tol " << eTol<< endl;
- }
+ vector< const SMDS_MeshNode* >::iterator sn = srcNodes.begin();
+ for ( ; tn != tgtNodes.end(); ++tn, ++sn)
+ src2tgtNodes.insert( make_pair( *sn, *tn ));
}
+ // else
+ // {
+ // vector< const SMDS_MeshNode* >::reverse_iterator sn = srcNodes.rbegin();
+ // for ( ; tn != tgtNodes.end(); ++tn, ++sn)
+ // src2tgtNodes.insert( make_pair( *sn, *tn ));
+ // }
+ is1DComputed = true;
}
- if ( !pOK )
- continue;
-
- srcPP.push_back( p );
- tgtPP.push_back( tgtP );
}
- }
- if ( srcPP.size() != 3 )
- return false;
+ } // loop on EDGEs of a WIRE
- // make transformation
- gp_Trsf fromTgtCS, toSrcCS; // from/to global CS
- gp_Ax2 srcCS( srcPP[0], gp_Vec( srcPP[0], srcPP[1] ), gp_Vec( srcPP[0], srcPP[2]));
- gp_Ax2 tgtCS( tgtPP[0], gp_Vec( tgtPP[0], tgtPP[1] ), gp_Vec( tgtPP[0], tgtPP[2]));
- toSrcCS .SetTransformation( gp_Ax3( srcCS ));
- fromTgtCS.SetTransformation( gp_Ax3( tgtCS ));
- fromTgtCS.Invert();
+ } // loop on WIREs
- trsf = fromTgtCS * toSrcCS;
- }
-
- // Fill map of src to tgt nodes with nodes on edges
-
- map<const SMDS_MeshNode* , const SMDS_MeshNode*> src2tgtNodes;
- map<const SMDS_MeshNode* , const SMDS_MeshNode*>::iterator srcN_tgtN;
+ return TError();
+ }
- bool tgtEdgesMeshed = false;
- for ( TopExp_Explorer srcExp( srcFace, TopAbs_EDGE); srcExp.More(); srcExp.Next() )
- {
- const TopoDS_Shape& srcEdge = srcExp.Current();
- const TopoDS_Shape& tgtEdge = shape2ShapeMap( srcEdge, /*isSrc=*/true );
- tgtEdgesMeshed != tgtMesh->GetSubMesh( tgtEdge )->IsEmpty();
+ //================================================================================
+ /*!
+ * \brief Perform projection in case if tgtFace.IsPartner( srcFace ) and in case
+ * if projection by 3D transformation is possible
+ */
+ //================================================================================
- if ( srcMesh->GetSubMesh( srcEdge )->IsEmpty() ||
- tgtMesh->GetSubMesh( tgtEdge )->IsEmpty() )
- continue;
+ bool projectPartner(const TopoDS_Face& tgtFace,
+ const TopoDS_Face& srcFace,
+ const TSideVector& tgtWires,
+ const TSideVector& srcWires,
+ const TAssocTool::TShapeShapeMap& shape2ShapeMap,
+ TAssocTool::TNodeNodeMap& src2tgtNodes,
+ const bool is1DComputed)
+ {
+ SMESH_Mesh * tgtMesh = tgtWires[0]->GetMesh();
+ SMESH_Mesh * srcMesh = srcWires[0]->GetMesh();
+ SMESHDS_Mesh* tgtMeshDS = tgtMesh->GetMeshDS();
+ SMESHDS_Mesh* srcMeshDS = srcMesh->GetMeshDS();
+ SMESH_MesherHelper* helper = tgtWires[0]->FaceHelper();
- map< double, const SMDS_MeshNode* > srcNodes, tgtNodes;
- if (( ! SMESH_Algo::GetSortedNodesOnEdge( srcMeshDS,
- TopoDS::Edge( srcEdge ),
- /*ignoreMediumNodes = */true,
- srcNodes ))
- ||
- ( ! SMESH_Algo::GetSortedNodesOnEdge( tgtMeshDS,
- TopoDS::Edge( tgtEdge ),
- /*ignoreMediumNodes = */true,
- tgtNodes ))
- ||
- (( srcNodes.size() != tgtNodes.size() ) && tgtNodes.size() > 0 )
- )
- return false;
+ const double tol = 1.e-7 * srcMeshDS->getMaxDim();
- if ( !tgtEdge.IsPartner( srcEdge ))
- {
- if ( tgtNodes.empty() )
- return false;
- // check that transformation is OK by three nodes
- gp_Pnt p0S = SMESH_TNodeXYZ( (srcNodes.begin()) ->second);
- gp_Pnt p1S = SMESH_TNodeXYZ( (srcNodes.rbegin()) ->second);
- gp_Pnt p2S = SMESH_TNodeXYZ( (++srcNodes.begin())->second);
-
- gp_Pnt p0T = SMESH_TNodeXYZ( (tgtNodes.begin()) ->second);
- gp_Pnt p1T = SMESH_TNodeXYZ( (tgtNodes.rbegin()) ->second);
- gp_Pnt p2T = SMESH_TNodeXYZ( (++tgtNodes.begin())->second);
-
- // transform source points, they must coincide with target ones
- if ( p0T.SquareDistance( p0S.Transformed( trsf )) > tol ||
- p1T.SquareDistance( p1S.Transformed( trsf )) > tol ||
- p2T.SquareDistance( p2S.Transformed( trsf )) > tol )
- {
- //cout << "KO trsf, 3 dist: "
- //<< p0T.SquareDistance( p0S.Transformed( trsf ))<< ", "
- //<< p1T.SquareDistance( p1S.Transformed( trsf ))<< ", "
- //<< p2T.SquareDistance( p2S.Transformed( trsf ))<< ", "<<endl;
- return false;
- }
- }
- if ( !tgtNodes.empty() )
+ // transformation to get location of target nodes from source ones
+ StdMeshers_ProjectionUtils::TrsfFinder3D trsf;
+ bool trsfIsOK = false;
+ if ( tgtFace.IsPartner( srcFace ))
+ {
+ gp_GTrsf srcTrsf = srcFace.Location().Transformation();
+ gp_GTrsf tgtTrsf = tgtFace.Location().Transformation();
+ gp_GTrsf t = srcTrsf.Inverted().Multiplied( tgtTrsf );
+ trsf.Set( t );
+ // check
+ gp_Pnt srcP = BRep_Tool::Pnt( srcWires[0]->FirstVertex() );
+ gp_Pnt tgtP = BRep_Tool::Pnt( tgtWires[0]->FirstVertex() );
+ trsfIsOK = ( tgtP.Distance( trsf.Transform( srcP )) < tol );
+ if ( !trsfIsOK )
{
- map< double, const SMDS_MeshNode* >::iterator u_tn = tgtNodes.begin();
- map< double, const SMDS_MeshNode* >::iterator u_sn = srcNodes.begin();
- for ( ; u_tn != tgtNodes.end(); ++u_tn, ++u_sn)
- src2tgtNodes.insert( make_pair( u_sn->second, u_tn->second ));
+ trsf.Set( tgtTrsf.Inverted().Multiplied( srcTrsf ));
+ trsfIsOK = ( tgtP.Distance( trsf.Transform( srcP )) < tol );
}
}
- // check nodes on VERTEXes for a case of not meshes EDGEs
- for ( TopExp_Explorer srcExp( srcFace, TopAbs_VERTEX); srcExp.More(); srcExp.Next() )
+ if ( !trsfIsOK )
{
- const TopoDS_Shape& srcV = srcExp.Current();
- const TopoDS_Shape& tgtV = shape2ShapeMap( srcV, /*isSrc=*/true );
- const SMDS_MeshNode* srcN = SMESH_Algo::VertexNode( TopoDS::Vertex( srcV ), srcMeshDS );
- const SMDS_MeshNode* tgtN = SMESH_Algo::VertexNode( TopoDS::Vertex( tgtV ), tgtMeshDS );
- if ( !srcN )
- continue;
- if ( !tgtN || tgtV.ShapeType() != TopAbs_VERTEX )
- return false;
-
- if ( !tgtV.IsPartner( srcV ))
+ // Try to find the 3D transformation
+
+ const int totNbSeg = 50;
+ vector< gp_XYZ > srcPnts, tgtPnts;
+ srcPnts.reserve( totNbSeg );
+ tgtPnts.reserve( totNbSeg );
+ gp_XYZ srcBC( 0,0,0 ), tgtBC( 0,0,0 );
+ for ( size_t iW = 0; iW < srcWires.size(); ++iW )
{
- // check that transformation is OK by three nodes
- gp_Pnt p0S = SMESH_TNodeXYZ( srcN );
- gp_Pnt p0T = SMESH_TNodeXYZ( tgtN );
- if ( p0T.SquareDistance( p0S.Transformed( trsf )) > tol )
+ const double minSegLen = srcWires[iW]->Length() / totNbSeg;
+ for ( int iE = 0; iE < srcWires[iW]->NbEdges(); ++iE )
{
- return false;
+ size_t nbSeg = Max( 1, int( srcWires[iW]->EdgeLength( iE ) / minSegLen ));
+ double srcU = srcWires[iW]->FirstParameter( iE );
+ double tgtU = tgtWires[iW]->FirstParameter( iE );
+ double srcDu = ( srcWires[iW]->LastParameter( iE )- srcU ) / nbSeg;
+ double tgtDu = ( tgtWires[iW]->LastParameter( iE )- tgtU ) / nbSeg;
+ for ( size_t i = 0; i < nbSeg; ++i )
+ {
+ srcPnts.push_back( srcWires[iW]->Value3d( srcU ).XYZ() );
+ tgtPnts.push_back( tgtWires[iW]->Value3d( tgtU ).XYZ() );
+ srcU += srcDu;
+ tgtU += tgtDu;
+ srcBC += srcPnts.back();
+ tgtBC += tgtPnts.back();
+ }
}
}
- src2tgtNodes.insert( make_pair( srcN, tgtN ));
- }
+ if ( !trsf.Solve( srcPnts, tgtPnts ))
+ return false;
+
+ // check trsf
+ const int nbTestPnt = 20;
+ const size_t iStep = Max( 1, int( srcPnts.size() / nbTestPnt ));
+ // check boundary
+ gp_Pnt trsfTgt = trsf.Transform( srcBC / srcPnts.size() );
+ trsfIsOK = ( trsfTgt.SquareDistance( tgtBC / tgtPnts.size() ) < tol*tol );
+ for ( size_t i = 0; ( i < srcPnts.size() && trsfIsOK ); i += iStep )
+ {
+ gp_Pnt trsfTgt = trsf.Transform( srcPnts[i] );
+ trsfIsOK = ( trsfTgt.SquareDistance( tgtPnts[i] ) < tol*tol );
+ }
+ // check an in-FACE point
+ if ( trsfIsOK )
+ {
+ BRepAdaptor_Surface srcSurf( srcFace );
+ gp_Pnt srcP =
+ srcSurf.Value( 0.321 * ( srcSurf.FirstUParameter() + srcSurf.LastUParameter() ),
+ 0.123 * ( srcSurf.FirstVParameter() + srcSurf.LastVParameter() ));
+ gp_Pnt tgtTrsfP = trsf.Transform( srcP );
+ TopLoc_Location loc;
+ GeomAPI_ProjectPointOnSurf& proj = helper->GetProjector( tgtFace, loc, 0.1*tol );
+ if ( !loc.IsIdentity() )
+ tgtTrsfP.Transform( loc.Transformation().Inverted() );
+ proj.Perform( tgtTrsfP );
+ trsfIsOK = ( proj.IsDone() &&
+ proj.NbPoints() > 0 &&
+ proj.LowerDistance() < tol );
+ }
+ if ( !trsfIsOK )
+ return false;
+ }
// Make new faces
// prepare the helper to adding quadratic elements if necessary
- SMESH_MesherHelper helper( *tgtMesh );
- helper.SetSubShape( tgtFace );
- helper.IsQuadraticSubMesh( tgtFace );
+ helper->IsQuadraticSubMesh( tgtFace );
SMESHDS_SubMesh* srcSubDS = srcMeshDS->MeshElements( srcFace );
- if ( !tgtEdgesMeshed && srcSubDS->NbElements() )
- helper.SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
+ if ( !is1DComputed && srcSubDS->NbElements() )
+ helper->SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
- SMESH_MesherHelper srcHelper( *srcMesh );
- srcHelper.SetSubShape( srcFace );
+ SMESH_MesherHelper* srcHelper = srcWires[0]->FaceHelper();
+ SMESH_MesherHelper edgeHelper( *tgtMesh );
+ edgeHelper.ToFixNodeParameters( true );
const SMDS_MeshNode* nullNode = 0;
+ TAssocTool::TNodeNodeMap::iterator srcN_tgtN;
// indices of nodes to create properly oriented faces
- bool isReverse = ( trsf.Form() != gp_Identity );
+ bool isReverse = ( !trsf.IsIdentity() );
int tri1 = 1, tri2 = 2, quad1 = 1, quad3 = 3;
if ( isReverse )
std::swap( tri1, tri2 ), std::swap( quad1, quad3 );
const SMDS_MeshElement* elem = elemIt->next();
const int nbN = elem->NbCornerNodes();
tgtNodes.resize( nbN );
- helper.SetElementsOnShape( false );
+ helper->SetElementsOnShape( false );
for ( int i = 0; i < nbN; ++i ) // loop on nodes of the source element
{
const SMDS_MeshNode* srcNode = elem->GetNode(i);
if ( srcN_tgtN->second == nullNode )
{
// create a new node
- gp_Pnt tgtP = gp_Pnt( SMESH_TNodeXYZ( srcNode )).Transformed( trsf );
- SMDS_MeshNode* n = helper.AddNode( tgtP.X(), tgtP.Y(), tgtP.Z() );
+ gp_Pnt tgtP = trsf.Transform( SMESH_TNodeXYZ( srcNode ));
+ SMDS_MeshNode* n = helper->AddNode( tgtP.X(), tgtP.Y(), tgtP.Z() );
srcN_tgtN->second = n;
switch ( srcNode->GetPosition()->GetTypeOfPosition() )
{
case SMDS_TOP_FACE:
{
- gp_Pnt2d srcUV = srcHelper.GetNodeUV( srcFace, srcNode );
- tgtMeshDS->SetNodeOnFace( n, helper.GetSubShapeID(), srcUV.X(), srcUV.Y() );
+ gp_Pnt2d srcUV = srcHelper->GetNodeUV( srcFace, srcNode );
+ tgtMeshDS->SetNodeOnFace( n, helper->GetSubShapeID(), srcUV.X(), srcUV.Y() );
break;
}
case SMDS_TOP_EDGE:
{
- const TopoDS_Shape & srcE = srcMeshDS->IndexToShape( srcNode->getshapeId() );
- const TopoDS_Shape & tgtE = shape2ShapeMap( srcE, /*isSrc=*/true );
- double srcU = srcHelper.GetNodeU( TopoDS::Edge( srcE ), srcNode );
- tgtMeshDS->SetNodeOnEdge( n, TopoDS::Edge( tgtE ), srcU );
+ const TopoDS_Edge& srcE = TopoDS::Edge( srcMeshDS->IndexToShape( srcNode->getshapeId()));
+ const TopoDS_Edge& tgtE = TopoDS::Edge( shape2ShapeMap( srcE, /*isSrc=*/true ));
+ double srcU = srcHelper->GetNodeU( srcE, srcNode );
+ tgtMeshDS->SetNodeOnEdge( n, tgtE, srcU );
+ if ( !tgtFace.IsPartner( srcFace ))
+ {
+ edgeHelper.SetSubShape( tgtE );
+ double tol = BRep_Tool::Tolerance( tgtE );
+ bool isOk = edgeHelper.CheckNodeU( tgtE, n, srcU, 2 * tol, /*force=*/true );
+ if ( !isOk ) // projection of n to tgtE failed (23395)
+ {
+ double sF, sL, tF, tL;
+ BRep_Tool::Range( srcE, sF, sL );
+ BRep_Tool::Range( tgtE, tF, tL );
+ double srcR = ( srcU - sF ) / ( sL - sF );
+ double tgtU = tF + srcR * ( tL - tF );
+ tgtMeshDS->SetNodeOnEdge( n, tgtE, tgtU );
+ gp_Pnt newP = BRepAdaptor_Curve( tgtE ).Value( tgtU );
+ double dist = newP.Distance( tgtP );
+ if ( tol < dist && dist < 1000*tol )
+ tgtMeshDS->MoveNode( n, newP.X(), newP.Y(), newP.Z() );
+ }
+ }
break;
}
case SMDS_TOP_VERTEX:
tgtNodes[i] = srcN_tgtN->second;
}
// create a new face
- helper.SetElementsOnShape( true );
+ helper->SetElementsOnShape( true );
switch ( nbN )
{
- case 3: helper.AddFace(tgtNodes[0], tgtNodes[tri1], tgtNodes[tri2]); break;
- case 4: helper.AddFace(tgtNodes[0], tgtNodes[quad1], tgtNodes[2], tgtNodes[quad3]); break;
+ case 3: helper->AddFace(tgtNodes[0], tgtNodes[tri1], tgtNodes[tri2]); break;
+ case 4: helper->AddFace(tgtNodes[0], tgtNodes[quad1], tgtNodes[2], tgtNodes[quad3]); break;
default:
if ( isReverse ) std::reverse( tgtNodes.begin(), tgtNodes.end() );
- helper.AddPolygonalFace( tgtNodes );
+ helper->AddPolygonalFace( tgtNodes );
}
}
if ( !tgtFace.IsPartner( srcFace ) )
{
+ helper->ToFixNodeParameters( true );
+
int nbOkPos = 0;
const double tol2d = 1e-12;
srcN_tgtN = src2tgtNodes.begin();
{
case SMDS_TOP_FACE:
{
- gp_XY uv = helper.GetNodeUV( tgtFace, n ), uvBis = uv;
- if (( helper.CheckNodeUV( tgtFace, n, uv, tol )) &&
- (( uv - uvBis ).SquareModulus() < tol2d ) &&
- ( ++nbOkPos > 10 ))
- return true;
+ if ( nbOkPos > 10 ) break;
+ gp_XY uv = helper->GetNodeUV( tgtFace, n ), uvBis = uv;
+ if (( helper->CheckNodeUV( tgtFace, n, uv, tol )) &&
+ (( uv - uvBis ).SquareModulus() < tol2d ))
+ ++nbOkPos;
else
- nbOkPos = 0;
+ nbOkPos = -((int) src2tgtNodes.size() );
break;
}
case SMDS_TOP_EDGE:
{
- const TopoDS_Edge & tgtE = TopoDS::Edge( tgtMeshDS->IndexToShape( n->getshapeId() ));
- double u = helper.GetNodeU( tgtE, n ), uBis = u;
- if (( !helper.CheckNodeU( tgtE, n, u, tol )) ||
- (( u - uBis ) < tol2d ))
- nbOkPos = 0;
+ // const TopoDS_Edge & tgtE = TopoDS::Edge( tgtMeshDS->IndexToShape( n->getshapeId() ));
+ // edgeHelper.SetSubShape( tgtE );
+ // edgeHelper.GetNodeU( tgtE, n, 0, &toCheck );
break;
}
default:;
//================================================================================
/*!
- * \brief Check if two consecutive EDGEs are connected in 2D
- * \param [in] E1 - a well oriented non-seam EDGE
- * \param [in] E2 - a possibly well oriented seam EDGE
- * \param [in] F - a FACE
- * \return bool - result
+ * \brief Perform projection in case if the faces are similar in 2D space
*/
//================================================================================
- bool are2dConnected( const TopoDS_Edge & E1,
- const TopoDS_Edge & E2,
- const TopoDS_Face & F )
+ bool projectBy2DSimilarity(const TopoDS_Face& tgtFace,
+ const TopoDS_Face& srcFace,
+ const TSideVector& tgtWires,
+ const TSideVector& srcWires,
+ const TAssocTool::TShapeShapeMap& shape2ShapeMap,
+ TAssocTool::TNodeNodeMap& src2tgtNodes,
+ const bool is1DComputed)
{
- double f,l;
- Handle(Geom2d_Curve) c1 = BRep_Tool::CurveOnSurface( E1, F, f, l );
- gp_Pnt2d uvLast1 = c1->Value( E1.Orientation() == TopAbs_REVERSED ? f : l );
+ SMESH_Mesh * tgtMesh = tgtWires[0]->GetMesh();
+ SMESH_Mesh * srcMesh = srcWires[0]->GetMesh();
- Handle(Geom2d_Curve) c2 = BRep_Tool::CurveOnSurface( E2, F, f, l );
- gp_Pnt2d uvFirst2 = c2->Value( f );
- gp_Pnt2d uvLast2 = c2->Value( l );
- double tol2 = 1e-5 * uvLast2.SquareDistance( uvFirst2 );
+ // WARNING: we can have problems if the FACE is symmetrical in 2D,
+ // then the projection can be mirrored relating to what is expected
- return (( uvLast1.SquareDistance( uvFirst2 ) < tol2 ) ||
- ( uvLast1.SquareDistance( uvLast2 ) < tol2 ));
- }
+ // 1) Find 2D transformation
- //================================================================================
- /*!
- * \brief Preform projection in case if the faces are similar in 2D space
- */
- //================================================================================
-
- bool projectBy2DSimilarity(const TopoDS_Face& tgtFace,
- const TopoDS_Face& srcFace,
- SMESH_Mesh * tgtMesh,
- SMESH_Mesh * srcMesh,
- const TAssocTool::TShapeShapeMap& shape2ShapeMap,
- const bool is1DComputed)
- {
- // 1) Preparation
-
- // get ordered src EDGEs
- TError err;
- TSideVector srcWires =
- StdMeshers_FaceSide::GetFaceWires( srcFace, *srcMesh,/*ignoreMediumNodes = */false, err);
- if ( err && !err->IsOK() )
- return false;
-
- // make corresponding sequence of tgt EDGEs
- TSideVector tgtWires( srcWires.size() );
- for ( size_t iW = 0; iW < srcWires.size(); ++iW )
- {
- list< TopoDS_Edge > tgtEdges;
- StdMeshers_FaceSidePtr srcWire = srcWires[iW];
- TopTools_IndexedMapOfShape edgeMap; // to detect seam edges
- for ( int iE = 0; iE < srcWire->NbEdges(); ++iE )
- {
- TopoDS_Edge E = TopoDS::Edge( shape2ShapeMap( srcWire->Edge( iE ), /*isSrc=*/true));
- // reverse a seam edge encountered for the second time
- const int index = edgeMap.Add( E );
- if ( index < edgeMap.Extent() ) // E is a seam
- {
- // check which of edges to reverse, E or one already being in tgtEdges
- if ( are2dConnected( tgtEdges.back(), E, tgtFace ))
- {
- list< TopoDS_Edge >::iterator eIt = tgtEdges.begin();
- std::advance( eIt, index-1 );
- eIt->Reverse();
- }
- else
- {
- E.Reverse();
- }
- }
- tgtEdges.push_back( E );
- }
- tgtWires[ iW ].reset( new StdMeshers_FaceSide( tgtFace, tgtEdges, tgtMesh,
- /*theIsForward = */ true,
- /*theIgnoreMediumNodes = */false));
- if ( is1DComputed &&
- srcWires[iW]->GetUVPtStruct().size() !=
- tgtWires[iW]->GetUVPtStruct().size())
- return false;
- }
-
- // 2) Find transformation
-
- gp_Trsf2d trsf;
+ StdMeshers_ProjectionUtils::TrsfFinder2D trsf;
{
// get 2 pairs of corresponding UVs
gp_Pnt2d srcP0 = srcWires[0]->Value2d(0.0);
toSrcCS .SetTransformation( srcCS );
fromTgtCS.SetTransformation( tgtCS );
fromTgtCS.Invert();
-
- trsf = fromTgtCS * toSrcCS;
+ trsf.Set( fromTgtCS * toSrcCS );
// check transformation
+ bool trsfIsOK = true;
const double tol = 1e-5 * gp_Vec2d( srcP0, srcP1 ).Magnitude();
- for ( double u = 0.12; u < 1.; u += 0.1 )
+ for ( double u = 0.12; ( u < 1. && trsfIsOK ); u += 0.1 )
{
- gp_Pnt2d srcUV = srcWires[0]->Value2d( u );
- gp_Pnt2d tgtUV = tgtWires[0]->Value2d( u );
- gp_Pnt2d tgtUV2 = srcUV.Transformed( trsf );
- if ( tgtUV.Distance( tgtUV2 ) > tol )
- return false;
+ gp_Pnt2d srcUV = srcWires[0]->Value2d( u );
+ gp_Pnt2d tgtUV = tgtWires[0]->Value2d( u );
+ gp_Pnt2d tgtUV2 = trsf.Transform( srcUV );
+ trsfIsOK = ( tgtUV.Distance( tgtUV2 ) < tol );
}
- }
- // 3) Projection
+ // Find trsf using a least-square approximation
+ if ( !trsfIsOK )
+ {
+ // find trsf
+ const int totNbSeg = 50;
+ vector< gp_XY > srcPnts, tgtPnts;
+ srcPnts.reserve( totNbSeg );
+ tgtPnts.reserve( totNbSeg );
+ for ( size_t iW = 0; iW < srcWires.size(); ++iW )
+ {
+ const double minSegLen = srcWires[iW]->Length() / totNbSeg;
+ for ( int iE = 0; iE < srcWires[iW]->NbEdges(); ++iE )
+ {
+ size_t nbSeg = Max( 1, int( srcWires[iW]->EdgeLength( iE ) / minSegLen ));
+ double srcU = srcWires[iW]->FirstParameter( iE );
+ double tgtU = tgtWires[iW]->FirstParameter( iE );
+ double srcDu = ( srcWires[iW]->LastParameter( iE )- srcU ) / nbSeg;
+ double tgtDu = ( tgtWires[iW]->LastParameter( iE )- tgtU ) / nbSeg;
+ for ( size_t i = 0; i < nbSeg; ++i, srcU += srcDu, tgtU += tgtDu )
+ {
+ srcPnts.push_back( srcWires[iW]->Value2d( srcU ).XY() );
+ tgtPnts.push_back( tgtWires[iW]->Value2d( tgtU ).XY() );
+ }
+ }
+ }
+ if ( !trsf.Solve( srcPnts, tgtPnts ))
+ return false;
- typedef map<const SMDS_MeshNode* , const SMDS_MeshNode*, TIDCompare> TN2NMap;
- TN2NMap src2tgtNodes;
- TN2NMap::iterator srcN_tgtN;
+ // check trsf
- // fill src2tgtNodes in with nodes on EDGEs
- for ( unsigned iW = 0; iW < srcWires.size(); ++iW )
- if ( is1DComputed )
- {
- const vector<UVPtStruct>& srcUVs = srcWires[iW]->GetUVPtStruct();
- const vector<UVPtStruct>& tgtUVs = tgtWires[iW]->GetUVPtStruct();
- for ( unsigned i = 0; i < srcUVs.size(); ++i )
- src2tgtNodes.insert( make_pair( srcUVs[i].node, tgtUVs[i].node ));
- }
- else
- {
- for ( int iE = 0; iE < srcWires[iW]->NbEdges(); ++iE )
+ trsfIsOK = true;
+ const int nbTestPnt = 10;
+ const size_t iStep = Max( 1, int( srcPnts.size() / nbTestPnt ));
+ for ( size_t i = 0; ( i < srcPnts.size() && trsfIsOK ); i += iStep )
{
- TopoDS_Vertex srcV = srcWires[iW]->FirstVertex(iE);
- TopoDS_Vertex tgtV = tgtWires[iW]->FirstVertex(iE);
- const SMDS_MeshNode* srcNode = SMESH_Algo::VertexNode( srcV, srcMesh->GetMeshDS() );
- const SMDS_MeshNode* tgtNode = SMESH_Algo::VertexNode( tgtV, tgtMesh->GetMeshDS() );
- if ( tgtNode && srcNode )
- src2tgtNodes.insert( make_pair( srcNode, tgtNode ));
+ gp_Pnt2d trsfTgt = trsf.Transform( srcPnts[i] );
+ trsfIsOK = ( trsfTgt.Distance( tgtPnts[i] ) < tol );
}
+ if ( !trsfIsOK )
+ return false;
}
+ } // "Find transformation" block
- // make elements
+ // 2) Projection
SMESHDS_SubMesh* srcSubDS = srcMesh->GetMeshDS()->MeshElements( srcFace );
- SMESH_MesherHelper helper( *tgtMesh );
- helper.SetSubShape( tgtFace );
+ SMESH_MesherHelper* helper = tgtWires[0]->FaceHelper();
if ( is1DComputed )
- helper.IsQuadraticSubMesh( tgtFace );
+ helper->IsQuadraticSubMesh( tgtFace );
else
- helper.SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
- helper.SetElementsOnShape( true );
+ helper->SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
+ helper->SetElementsOnShape( true );
Handle(Geom_Surface) tgtSurface = BRep_Tool::Surface( tgtFace );
SMESHDS_Mesh* tgtMeshDS = tgtMesh->GetMeshDS();
- SMESH_MesherHelper srcHelper( *srcMesh );
- srcHelper.SetSubShape( srcFace );
+ SMESH_MesherHelper* srcHelper = srcWires[0]->FaceHelper();
const SMDS_MeshNode* nullNode = 0;
+ TAssocTool::TNodeNodeMap::iterator srcN_tgtN;
SMDS_ElemIteratorPtr elemIt = srcSubDS->GetElements();
vector< const SMDS_MeshNode* > tgtNodes;
while ( elemIt->more() ) // loop on all mesh faces on srcFace
{
const SMDS_MeshElement* elem = elemIt->next();
- const int nbN = elem->NbCornerNodes();
+ const int nbN = elem->NbCornerNodes();
tgtNodes.resize( nbN );
for ( int i = 0; i < nbN; ++i ) // loop on nodes of the source element
{
if ( srcN_tgtN->second == nullNode )
{
// create a new node
- gp_Pnt2d srcUV = srcHelper.GetNodeUV( srcFace, srcNode,
- elem->GetNode( helper.WrapIndex(i+1,nbN)), &uvOK);
- gp_Pnt2d tgtUV = srcUV.Transformed( trsf );
- gp_Pnt tgtP = tgtSurface->Value( tgtUV.X(), tgtUV.Y() );
+ gp_Pnt2d srcUV = srcHelper->GetNodeUV( srcFace, srcNode,
+ elem->GetNode( helper->WrapIndex(i+1,nbN)), &uvOK);
+ gp_Pnt2d tgtUV = trsf.Transform( srcUV );
+ gp_Pnt tgtP = tgtSurface->Value( tgtUV.X(), tgtUV.Y() );
SMDS_MeshNode* n = tgtMeshDS->AddNode( tgtP.X(), tgtP.Y(), tgtP.Z() );
switch ( srcNode->GetPosition()->GetTypeOfPosition() )
{
case SMDS_TOP_FACE: {
- tgtMeshDS->SetNodeOnFace( n, helper.GetSubShapeID(), tgtUV.X(), tgtUV.Y() );
+ tgtMeshDS->SetNodeOnFace( n, helper->GetSubShapeID(), tgtUV.X(), tgtUV.Y() );
break;
}
case SMDS_TOP_EDGE: {
- TopoDS_Shape srcEdge = srcHelper.GetSubShapeByNode( srcNode, srcHelper.GetMeshDS() );
+ TopoDS_Shape srcEdge = srcHelper->GetSubShapeByNode( srcNode, srcHelper->GetMeshDS() );
TopoDS_Edge tgtEdge = TopoDS::Edge( shape2ShapeMap( srcEdge, /*isSrc=*/true ));
- tgtMeshDS->SetNodeOnEdge( n, TopoDS::Edge( tgtEdge ));
- double U = srcHelper.GetNodeU( TopoDS::Edge( srcEdge ), srcNode );
- helper.CheckNodeU( tgtEdge, n, U, Precision::PConfusion());
- n->SetPosition(SMDS_PositionPtr(new SMDS_EdgePosition( U )));
+ double U = Precision::Infinite();
+ helper->CheckNodeU( tgtEdge, n, U, Precision::PConfusion());
+ tgtMeshDS->SetNodeOnEdge( n, TopoDS::Edge( tgtEdge ), U );
break;
}
case SMDS_TOP_VERTEX: {
- TopoDS_Shape srcV = srcHelper.GetSubShapeByNode( srcNode, srcHelper.GetMeshDS() );
+ TopoDS_Shape srcV = srcHelper->GetSubShapeByNode( srcNode, srcHelper->GetMeshDS() );
TopoDS_Shape tgtV = shape2ShapeMap( srcV, /*isSrc=*/true );
tgtMeshDS->SetNodeOnVertex( n, TopoDS::Vertex( tgtV ));
break;
}
+ default:;
}
srcN_tgtN->second = n;
}
// create a new face (with reversed orientation)
switch ( nbN )
{
- case 3: helper.AddFace(tgtNodes[0], tgtNodes[2], tgtNodes[1]); break;
- case 4: helper.AddFace(tgtNodes[0], tgtNodes[3], tgtNodes[2], tgtNodes[1]); break;
+ case 3: helper->AddFace(tgtNodes[0], tgtNodes[2], tgtNodes[1]); break;
+ case 4: helper->AddFace(tgtNodes[0], tgtNodes[3], tgtNodes[2], tgtNodes[1]); break;
}
+ } // loop on all mesh faces on srcFace
+
+ return true;
+ }
+
+ //================================================================================
+ /*!
+ * \brief Perform projection in case of quadrilateral faces
+ */
+ //================================================================================
+
+ bool projectQuads(const TopoDS_Face& /*tgtFace*/,
+ const TopoDS_Face& /*srcFace*/,
+ const TSideVector& /*tgtWires*/,
+ const TSideVector& /*srcWires*/,
+ const TAssocTool::TShapeShapeMap& /*shape2ShapeMap*/,
+ TAssocTool::TNodeNodeMap& /*src2tgtNodes*/,
+ const bool /*is1DComputed*/)
+ {
+ // SMESH_Mesh * tgtMesh = tgtWires[0]->GetMesh();
+ // SMESH_Mesh * srcMesh = srcWires[0]->GetMesh();
+ // //SMESHDS_Mesh * tgtMeshDS = tgtMesh->GetMeshDS();
+ // SMESHDS_Mesh * srcMeshDS = srcMesh->GetMeshDS();
+
+ // if ( srcWires[0]->NbEdges() != 4 )
+ // return false;
+ // if ( !is1DComputed )
+ // return false;
+ // for ( int iE = 0; iE < 4; ++iE )
+ // {
+ // SMESHDS_SubMesh* sm = srcMeshDS->MeshElements( srcWires[0]->Edge( iE ));
+ // if ( !sm ) return false;
+ // if ( sm->NbNodes() + sm->NbElements() == 0 ) return false;
+ // }
+ // if ( BRepAdaptor_Surface( tgtFace ).GetType() != GeomAbs_Plane )
+ // return false;
+ // // if ( BRepAdaptor_Surface( tgtFace ).GetType() == GeomAbs_Plane &&
+ // // BRepAdaptor_Surface( srcFace ).GetType() == GeomAbs_Plane )
+ // // return false; // too easy
+
+ // // load EDGEs to SMESH_Block
+
+ // SMESH_Block block;
+ // TopTools_IndexedMapOfOrientedShape blockSubShapes;
+ // {
+ // const TopoDS_Solid& box = srcMesh->PseudoShape();
+ // TopoDS_Shell shell = TopoDS::Shell( TopExp_Explorer( box, TopAbs_SHELL ).Current() );
+ // TopoDS_Vertex v;
+ // block.LoadBlockShapes( shell, v, v, blockSubShapes ); // fill all since operator[] is missing
+ // }
+ // const SMESH_Block::TShapeID srcFaceBID = SMESH_Block::ID_Fxy0;
+ // const SMESH_Block::TShapeID tgtFaceBID = SMESH_Block::ID_Fxy1;
+ // vector< int > edgeBID;
+ // block.GetFaceEdgesIDs( srcFaceBID, edgeBID ); // u0, u1, 0v, 1v
+ // blockSubShapes.Substitute( edgeBID[0], srcWires[0]->Edge(0) );
+ // blockSubShapes.Substitute( edgeBID[1], srcWires[0]->Edge(2) );
+ // blockSubShapes.Substitute( edgeBID[2], srcWires[0]->Edge(3) );
+ // blockSubShapes.Substitute( edgeBID[3], srcWires[0]->Edge(1) );
+ // block.GetFaceEdgesIDs( tgtFaceBID, edgeBID ); // u0, u1, 0v, 1v
+ // blockSubShapes.Substitute( edgeBID[0], tgtWires[0]->Edge(0) );
+ // blockSubShapes.Substitute( edgeBID[1], tgtWires[0]->Edge(2) );
+ // blockSubShapes.Substitute( edgeBID[2], tgtWires[0]->Edge(3) );
+ // blockSubShapes.Substitute( edgeBID[3], tgtWires[0]->Edge(1) );
+ // block.LoadFace( srcFace, srcFaceBID, blockSubShapes );
+ // block.LoadFace( tgtFace, tgtFaceBID, blockSubShapes );
+
+ // // remember connectivity of new faces in terms of ( node-or-XY )
+
+ // typedef std::pair< const SMDS_MeshNode*, gp_XYZ > TNodeOrXY; // node-or-XY
+ // typedef std::vector< TNodeOrXY* > TFaceConn; // face connectivity
+ // std::vector< TFaceConn > newFacesVec; // connectivity of all faces
+ // std::map< const SMDS_MeshNode*, TNodeOrXY > srcNode2tgtNXY; // src node -> node-or-XY
+
+ // TAssocTool::TNodeNodeMap::iterator srcN_tgtN;
+ // std::map< const SMDS_MeshNode*, TNodeOrXY >::iterator srcN_tgtNXY;
+ // std::pair< std::map< const SMDS_MeshNode*, TNodeOrXY >::iterator, bool > n2n_isNew;
+ // TNodeOrXY nullNXY( (SMDS_MeshNode*)NULL, gp_XYZ(0,0,0) );
+
+ // SMESHDS_SubMesh* srcSubDS = srcMeshDS->MeshElements( srcFace );
+ // newFacesVec.resize( srcSubDS->NbElements() );
+ // int iFaceSrc = 0;
+
+ // SMDS_ElemIteratorPtr elemIt = srcSubDS->GetElements();
+ // while ( elemIt->more() ) // loop on all mesh faces on srcFace
+ // {
+ // const SMDS_MeshElement* elem = elemIt->next();
+ // TFaceConn& tgtNodes = newFacesVec[ iFaceSrc++ ];
+
+ // const int nbN = elem->NbCornerNodes();
+ // tgtNodes.resize( nbN );
+ // for ( int i = 0; i < nbN; ++i ) // loop on nodes of the source element
+ // {
+ // const SMDS_MeshNode* srcNode = elem->GetNode(i);
+ // n2n_isNew = srcNode2tgtNXY.insert( make_pair( srcNode, nullNXY ));
+ // TNodeOrXY & tgtNodeOrXY = n2n_isNew.first->second;
+ // if ( n2n_isNew.second ) // new src node encounters
+ // {
+ // srcN_tgtN = src2tgtNodes.find( srcNode );
+ // if ( srcN_tgtN != src2tgtNodes.end() )
+ // {
+ // tgtNodeOrXY.first = srcN_tgtN->second; // tgt node exists
+ // }
+ // else
+ // {
+ // // find XY of src node within the quadrilateral srcFace
+ // if ( !block.ComputeParameters( SMESH_TNodeXYZ( srcNode ),
+ // tgtNodeOrXY.second, srcFaceBID ))
+ // return false;
+ // }
+ // }
+ // tgtNodes[ i ] = & tgtNodeOrXY;
+ // }
+ // }
+
+ // // as all XY are computed, create tgt nodes and faces
+
+ // SMESH_MesherHelper helper = *tgtWires[0]->FaceHelper();
+ // if ( is1DComputed )
+ // helper.IsQuadraticSubMesh( tgtFace );
+ // else
+ // helper.SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
+ // helper.SetElementsOnShape( true );
+ // Handle(Geom_Surface) tgtSurface = BRep_Tool::Surface( tgtFace );
+
+ // SMESH_MesherHelper srcHelper = *srcWires[0]->FaceHelper();
+
+ // vector< const SMDS_MeshNode* > tgtNodes;
+ // gp_XY uv;
+
+ // for ( size_t iFaceTgt = 0; iFaceTgt < newFacesVec.size(); ++iFaceTgt )
+ // {
+ // TFaceConn& tgtConn = newFacesVec[ iFaceTgt ];
+ // tgtNodes.resize( tgtConn.size() );
+ // for ( size_t iN = 0; iN < tgtConn.size(); ++iN )
+ // {
+ // const SMDS_MeshNode* & tgtN = tgtConn[ iN ]->first;
+ // if ( !tgtN ) // create a node
+ // {
+ // if ( !block.FaceUV( tgtFaceBID, tgtConn[iN]->second, uv ))
+ // return false;
+ // gp_Pnt p = tgtSurface->Value( uv.X(), uv.Y() );
+ // tgtN = helper.AddNode( p.X(), p.Y(), p.Z(), uv.X(), uv.Y() );
+ // }
+ // tgtNodes[ tgtNodes.size() - iN - 1] = tgtN; // reversed orientation
+ // }
+ // switch ( tgtNodes.size() )
+ // {
+ // case 3: helper.AddFace(tgtNodes[0], tgtNodes[1], tgtNodes[2]); break;
+ // case 4: helper.AddFace(tgtNodes[0], tgtNodes[1], tgtNodes[2], tgtNodes[3]); break;
+ // default:
+ // if ( tgtNodes.size() > 4 )
+ // helper.AddPolygonalFace( tgtNodes );
+ // }
+ // }
+ return false; //true;
+
+ } // bool projectQuads(...)
+
+ //================================================================================
+ /*!
+ * \brief Fix bad faces by smoothing
+ */
+ //================================================================================
+
+ bool fixDistortedFaces( SMESH_MesherHelper& helper,
+ TSideVector& tgtWires )
+ {
+ SMESH_subMesh* faceSM = helper.GetMesh()->GetSubMesh( helper.GetSubShape() );
+
+ //if ( helper.IsDistorted2D( faceSM, /*checkUV=*/true ))
+ {
+ SMESH_MeshEditor editor( helper.GetMesh() );
+ SMESHDS_SubMesh* smDS = faceSM->GetSubMeshDS();
+ const TopoDS_Face& F = TopoDS::Face( faceSM->GetSubShape() );
+
+ TIDSortedElemSet faces;
+ SMDS_ElemIteratorPtr faceIt = smDS->GetElements();
+ for ( faceIt = smDS->GetElements(); faceIt->more(); )
+ faces.insert( faces.end(), faceIt->next() );
+
+ // choose smoothing algo
+ //SMESH_MeshEditor:: SmoothMethod algo = SMESH_MeshEditor::CENTROIDAL;
+ bool isConcaveBoundary = false;
+ for ( size_t iW = 0; iW < tgtWires.size() && !isConcaveBoundary; ++iW )
+ {
+ TopoDS_Edge prevEdge = tgtWires[iW]->Edge( tgtWires[iW]->NbEdges() - 1 );
+ for ( int iE = 0; iE < tgtWires[iW]->NbEdges() && !isConcaveBoundary; ++iE )
+ {
+ double angle = helper.GetAngle( prevEdge, tgtWires[iW]->Edge( iE ),
+ F, tgtWires[iW]->FirstVertex( iE ));
+ isConcaveBoundary = ( angle < -5. * M_PI / 180. );
+
+ prevEdge = tgtWires[iW]->Edge( iE );
+ }
+ }
+ SMESH_MeshEditor:: SmoothMethod algo =
+ isConcaveBoundary ? SMESH_MeshEditor::CENTROIDAL : SMESH_MeshEditor::LAPLACIAN;
+
+ // smooth in 2D or 3D?
+ TopLoc_Location loc;
+ Handle(Geom_Surface) surface = BRep_Tool::Surface( F, loc );
+ bool isPlanar = GeomLib_IsPlanarSurface( surface ).IsPlanar();
+
+ // smoothing
+ set<const SMDS_MeshNode*> fixedNodes;
+ editor.Smooth( faces, fixedNodes, algo, /*nbIterations=*/ 10,
+ /*theTgtAspectRatio=*/1.0, /*the2D=*/!isPlanar);
+
+ helper.ToFixNodeParameters( true );
+
+ return !helper.IsDistorted2D( faceSM, /*checkUV=*/true );
}
return true;
+ }
+
+ //=======================================================================
+ /*
+ * Set initial association of VERTEXes for the case of projection
+ * from a quadrangle FACE to a closed FACE, where opposite src EDGEs
+ * have different nb of segments
+ */
+ //=======================================================================
+
+ void initAssoc4Quad2Closed(const TopoDS_Shape& tgtFace,
+ SMESH_MesherHelper& tgtHelper,
+ const TopoDS_Shape& srcFace,
+ SMESH_Mesh* srcMesh,
+ TAssocTool::TShapeShapeMap & assocMap)
+ {
+ if ( !tgtHelper.HasRealSeam() || srcFace.ShapeType() != TopAbs_FACE )
+ return; // no seam edge
+ list< TopoDS_Edge > tgtEdges, srcEdges;
+ list< int > tgtNbEW, srcNbEW;
+ int tgtNbW = SMESH_Block::GetOrderedEdges( TopoDS::Face( tgtFace ), tgtEdges, tgtNbEW );
+ int srcNbW = SMESH_Block::GetOrderedEdges( TopoDS::Face( srcFace ), srcEdges, srcNbEW );
+ if ( tgtNbW != 1 || srcNbW != 1 ||
+ tgtNbEW.front() != 4 || srcNbEW.front() != 4 )
+ return; // not quads
+
+ smIdType srcNbSeg[4];
+ list< TopoDS_Edge >::iterator edgeS = srcEdges.begin(), edgeT = tgtEdges.begin();
+ for ( int i = 0; edgeS != srcEdges.end(); ++i, ++edgeS )
+ if ( SMESHDS_SubMesh* sm = srcMesh->GetMeshDS()->MeshElements( *edgeS ))
+ srcNbSeg[ i ] = sm->NbNodes();
+ else
+ return; // not meshed
+ if ( srcNbSeg[0] == srcNbSeg[2] && srcNbSeg[1] == srcNbSeg[3] )
+ return; // same nb segments
+ if ( srcNbSeg[0] != srcNbSeg[2] && srcNbSeg[1] != srcNbSeg[3] )
+ return; // all different nb segments
+
+ edgeS = srcEdges.begin();
+ if ( srcNbSeg[0] != srcNbSeg[2] )
+ ++edgeS;
+ TAssocTool::InsertAssociation( tgtHelper.IthVertex( 0,*edgeT ),
+ tgtHelper.IthVertex( 0,*edgeS ), assocMap );
+ TAssocTool::InsertAssociation( tgtHelper.IthVertex( 1,*edgeT ),
+ tgtHelper.IthVertex( 1,*edgeS ), assocMap );
+ }
+
+ //================================================================================
+ /*!
+ * \brief Find sub-shape association such that corresponding VERTEXes of
+ * two corresponding FACEs lie on lines parallel to thePiercingLine
+ */
+ //================================================================================
+
+ bool findSubShapeAssociationByPiercing( const TopoDS_Face& theTgtFace,
+ SMESH_Mesh * /*theTgtMesh*/,
+ const TopoDS_Shape& theSrcShape,
+ SMESH_Mesh* theSrcMesh,
+ TAssocTool::TShapeShapeMap& theShape2ShapeMap,
+ Handle(Geom_Line) & thePiercingLine )
+ {
+ list< TopoDS_Edge > tgtEdges, srcEdges;
+ list< int > tgtNbEW, srcNbEW;
+ int tgtNbW = SMESH_Block::GetOrderedEdges( TopoDS::Face( theTgtFace ), tgtEdges, tgtNbEW );
+
+ TopTools_IndexedMapOfShape tgtVV, srcVV;
+ for ( const TopoDS_Edge& tgtEdge : tgtEdges )
+ tgtVV.Add( SMESH_MesherHelper::IthVertex( 0, tgtEdge ));
+ // if ( tgtVV.Size() < 2 )
+ // return false;
+
+ const int nbVV = tgtVV.Size();
+ const gp_Pnt tgtP0 = BRep_Tool::Pnt( TopoDS::Vertex( tgtVV( 1 )));
+ double minVertexDist = Precision::Infinite(), assocTol;
+ gp_Lin piercingLine;
+ TopoDS_Face assocSrcFace;
+ double tol;
+
+ for ( TopExp_Explorer faceExp( theSrcShape, TopAbs_FACE ); faceExp.More(); faceExp.Next())
+ {
+ const TopoDS_Face& srcFace = TopoDS::Face( faceExp.Current() );
+
+ int srcNbW = SMESH_Block::GetOrderedEdges( srcFace, srcEdges, srcNbEW );
+ if ( tgtNbW != srcNbW )
+ continue;
+
+ srcVV.Clear( false );
+ for ( const TopoDS_Edge& srcEdge : srcEdges )
+ srcVV.Add( SMESH_MesherHelper::IthVertex( 0, srcEdge ));
+ if ( srcVV.Extent() != tgtVV.Extent() )
+ continue;
+
+ // make srcFace computed
+ SMESH_subMesh* srcFaceSM = theSrcMesh->GetSubMesh( srcFace );
+ if ( !TAssocTool::MakeComputed( srcFaceSM ))
+ continue;
+
+ // compute tolerance
+ double sumLen = 0, nbEdges = 0;
+ for ( const TopoDS_Edge& srcEdge : srcEdges )
+ {
+ SMESH_subMesh* srcSM = theSrcMesh->GetSubMesh( srcEdge );
+ if ( !srcSM->GetSubMeshDS() )
+ continue;
+ SMDS_ElemIteratorPtr edgeIt = srcSM->GetSubMeshDS()->GetElements();
+ while ( edgeIt->more() )
+ {
+ const SMDS_MeshElement* edge = edgeIt->next();
+ sumLen += SMESH_NodeXYZ( edge->GetNode( 0 )).Distance( edge->GetNode( 1 ));
+ nbEdges += 1;
+ }
+ }
+ if ( nbEdges == 0 )
+ continue;
+
+ tol = 0.1 * sumLen / nbEdges;
+
+ // try to find corresponding VERTEXes
+
+ gp_Lin line;
+ double vertexDist;
+ for ( int iSrcV0 = 1; iSrcV0 <= srcVV.Size(); ++iSrcV0 )
+ {
+ const gp_Pnt srcP0 = BRep_Tool::Pnt( TopoDS::Vertex( srcVV( iSrcV0 )));
+ try {
+ line.SetDirection( gp_Vec( srcP0, tgtP0 ));
+ }
+ catch (...) {
+ continue;
+ }
+ bool correspond;
+ for ( int iDir : { -1, 1 }) // move connected VERTEX forward and backward
+ {
+ correspond = true;
+ vertexDist = 0;
+ int iTgtV = 0, iSrcV = iSrcV0 - 1;
+ for ( int i = 1; i < tgtVV.Size() && correspond; ++i )
+ {
+ iTgtV = ( iTgtV + 1 ) % nbVV;
+ iSrcV = ( iSrcV + iDir + nbVV ) % nbVV;
+ gp_Pnt tgtP = BRep_Tool::Pnt( TopoDS::Vertex( tgtVV( iTgtV + 1 )));
+ gp_Pnt srcP = BRep_Tool::Pnt( TopoDS::Vertex( srcVV( iSrcV + 1 )));
+ line.SetLocation( tgtP );
+ correspond = ( line.SquareDistance( srcP ) < tol * tol );
+ vertexDist += tgtP.SquareDistance( srcP );
+ }
+ if ( correspond )
+ break;
+ }
+ if ( correspond )
+ {
+ if ( vertexDist < minVertexDist )
+ {
+ minVertexDist = vertexDist;
+ piercingLine = line;
+ assocSrcFace = srcFace;
+ assocTol = tol;
+ }
+ break;
+ }
+ }
+ continue;
+
+ } // loop on src FACEs
+
+ if ( Precision::IsInfinite( minVertexDist ))
+ return false; // no correspondence found
+
+ thePiercingLine = new Geom_Line( piercingLine );
+
+ // fill theShape2ShapeMap
+
+ TAssocTool::InsertAssociation( theTgtFace, assocSrcFace, theShape2ShapeMap );
+
+ for ( const TopoDS_Shape& tgtV : tgtVV ) // fill theShape2ShapeMap with VERTEXes
+ {
+ gp_Pnt tgtP = BRep_Tool::Pnt( TopoDS::Vertex( tgtV ));
+ piercingLine.SetLocation( tgtP );
+ bool found = false;
+ for ( const TopoDS_Shape& srcV : srcVV )
+ {
+ gp_Pnt srcP = BRep_Tool::Pnt( TopoDS::Vertex( srcV ));
+ if ( piercingLine.SquareDistance( srcP ) < assocTol * assocTol )
+ {
+ TAssocTool::InsertAssociation( tgtV, srcV, theShape2ShapeMap );
+ found = true;
+ break;
+ }
+ }
+ if ( !found )
+ return false;
+ }
+
+ TopoDS_Vertex vvT[2], vvS[2], vvMapped[2];
+ for ( const TopoDS_Edge& tgtEdge : tgtEdges ) // fill theShape2ShapeMap with EDGEs
+ {
+ if ( SMESH_Algo::isDegenerated( tgtEdge ))
+ continue;
+
+ TopExp::Vertices( tgtEdge, vvT[0], vvT[1], true );
+ if ( !theShape2ShapeMap.IsBound( vvT[0] ) ||
+ !theShape2ShapeMap.IsBound( vvT[1] ))
+ return false;
+
+ vvMapped[0] = TopoDS::Vertex( theShape2ShapeMap( vvT[0] ));
+ vvMapped[1] = TopoDS::Vertex( theShape2ShapeMap( vvT[1] ));
+
+ bool found = false;
+ for ( TopExp_Explorer eExp( assocSrcFace, TopAbs_EDGE ); eExp.More(); eExp.Next())
+ {
+ TopoDS_Edge srcEdge = TopoDS::Edge( eExp.Current() );
+ TopExp::Vertices( srcEdge, vvS[0], vvS[1], true );
+ found = (( vvMapped[0].IsSame( vvS[0] ) && vvMapped[1].IsSame( vvS[1] )) ||
+ ( vvMapped[0].IsSame( vvS[1] ) && vvMapped[1].IsSame( vvS[0] )));
+
+ if ( found && nbVV < 3 )
+ {
+ BRepAdaptor_Curve tgtCurve( tgtEdge );
+ gp_Pnt tgtP = tgtCurve.Value( 0.5 * ( tgtCurve.FirstParameter() +
+ tgtCurve.LastParameter() ));
+ thePiercingLine->SetLocation( tgtP );
+
+ double f,l;
+ Handle(Geom_Curve) srcCurve = BRep_Tool::Curve( srcEdge, f,l );
+ if ( srcCurve.IsNull() )
+ {
+ found = false;
+ continue;
+ }
+ GeomAPI_ExtremaCurveCurve extrema( thePiercingLine, srcCurve );
+ if ( !extrema.Extrema().IsDone() ||
+ extrema.Extrema().IsParallel() ||
+ extrema.NbExtrema() == 0 ||
+ extrema.LowerDistance() > tol )
+ found = false;
+ }
+ if ( found )
+ {
+ if ( !vvMapped[0].IsSame( vvS[0] ))
+ srcEdge.Reverse();
+ TAssocTool::InsertAssociation( tgtEdge, srcEdge, theShape2ShapeMap );
+ break;
+ }
+ }
+ if ( !found )
+ return false;
+ }
+
+ return true;
+
+ } // findSubShapeAssociationByPiercing()
+
+ //================================================================================
+ /*!
+ * \brief Project by piercing theTgtFace by lines parallel to thePiercingLine
+ */
+ //================================================================================
+
+ bool projectByPiercing(Handle(Geom_Line) thePiercingLine,
+ const TopoDS_Face& theTgtFace,
+ const TopoDS_Face& theSrcFace,
+ const TSideVector& theTgtWires,
+ const TSideVector& theSrcWires,
+ const TAssocTool::TShapeShapeMap& theShape2ShapeMap,
+ TAssocTool::TNodeNodeMap& theSrc2tgtNodes,
+ const bool theIs1DComputed)
+ {
+ SMESH_Mesh * tgtMesh = theTgtWires[0]->GetMesh();
+ SMESH_Mesh * srcMesh = theSrcWires[0]->GetMesh();
+
+ if ( thePiercingLine.IsNull() )
+ {
+ // try to set thePiercingLine by VERTEX association of theShape2ShapeMap
+
+ const double tol = 0.1 * theSrcWires[0]->Length() / theSrcWires[0]->NbSegments();
+
+ for ( TopExp_Explorer vExp( theTgtFace, TopAbs_VERTEX ); vExp.More(); vExp.Next() )
+ {
+ const TopoDS_Vertex & tgtV = TopoDS::Vertex( vExp.Current() );
+ const TopoDS_Vertex & srcV = TopoDS::Vertex( theShape2ShapeMap( tgtV ));
+ gp_Pnt tgtP = BRep_Tool::Pnt( tgtV );
+ gp_Pnt srcP = BRep_Tool::Pnt( srcV );
+ if ( thePiercingLine.IsNull() ) // set thePiercingLine
+ {
+ gp_Lin line;
+ try {
+ line.SetDirection( gp_Vec( srcP, tgtP ));
+ line.SetLocation( tgtP );
+ thePiercingLine = new Geom_Line( line );
+ }
+ catch ( ... )
+ {
+ continue;
+ }
+ }
+ else // check thePiercingLine
+ {
+ thePiercingLine->SetLocation( tgtP );
+ if ( thePiercingLine->Lin().SquareDistance( srcP ) > tol * tol )
+ return false;
+ }
+ }
+
+ for ( TopExp_Explorer eExp( theTgtFace, TopAbs_EDGE ); eExp.More(); eExp.Next() )
+ {
+ BRepAdaptor_Curve tgtCurve( TopoDS::Edge( eExp.Current() ));
+ gp_Pnt tgtP = tgtCurve.Value( 0.5 * ( tgtCurve.FirstParameter() +
+ tgtCurve.LastParameter() ));
+ thePiercingLine->SetLocation( tgtP );
+
+ double f,l;
+ TopoDS_Edge srcEdge = TopoDS::Edge( theShape2ShapeMap( eExp.Current() ));
+ Handle(Geom_Curve) srcCurve = BRep_Tool::Curve( srcEdge, f,l );
+ if ( srcCurve.IsNull() )
+ continue;
+ GeomAPI_ExtremaCurveCurve extrema( thePiercingLine, srcCurve,
+ -Precision::Infinite(), Precision::Infinite(), f, l );
+ if ( !extrema.Extrema().IsDone() ||
+ extrema.Extrema().IsParallel() ||
+ extrema.NbExtrema() == 0 ||
+ extrema.LowerDistance() > tol )
+ return false;
+ }
+ } // if ( thePiercingLine.IsNull() )
+
+ SMESHDS_SubMesh* srcSubDS = srcMesh->GetMeshDS()->MeshElements( theSrcFace );
+
+ SMESH_MesherHelper* helper = theTgtWires[0]->FaceHelper();
+ if ( theIs1DComputed )
+ helper->IsQuadraticSubMesh( theTgtFace );
+ else
+ helper->SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
+ helper->SetElementsOnShape( true );
+ SMESHDS_Mesh* tgtMeshDS = tgtMesh->GetMeshDS();
+
+ Handle(Geom_Surface) tgtSurface = BRep_Tool::Surface( theTgtFace );
+ Handle(GeomAdaptor_HSurface) tgtSurfAdaptor = new GeomAdaptor_HSurface( tgtSurface );
+ Handle(GeomAdaptor_HCurve) piercingCurve = new GeomAdaptor_HCurve( thePiercingLine );
+ IntCurveSurface_HInter intersect;
+
+ SMESH_MesherHelper* srcHelper = theSrcWires[0]->FaceHelper();
+
+ const SMDS_MeshNode* nullNode = 0;
+ TAssocTool::TNodeNodeMap::iterator srcN_tgtN;
+ vector< const SMDS_MeshNode* > tgtNodes;
+
+ SMDS_ElemIteratorPtr elemIt = srcSubDS->GetElements();
+ while ( elemIt->more() ) // loop on all mesh faces on srcFace
+ {
+ const SMDS_MeshElement* elem = elemIt->next();
+ const int nbN = elem->NbCornerNodes();
+ tgtNodes.resize( nbN );
+ for ( int i = 0; i < nbN; ++i ) // loop on nodes of the source element
+ {
+ const SMDS_MeshNode* srcNode = elem->GetNode(i);
+ srcN_tgtN = theSrc2tgtNodes.insert( make_pair( srcNode, nullNode )).first;
+ if ( srcN_tgtN->second == nullNode )
+ {
+ // create a new node
+ thePiercingLine->SetLocation( SMESH_NodeXYZ( srcNode ));
+ intersect.Perform( piercingCurve, tgtSurfAdaptor );
+ bool pierced = ( intersect.IsDone() && intersect.NbPoints() > 0 );
+ double U, V;
+ const SMDS_MeshNode* n = nullNode;
+ if ( pierced )
+ {
+ double W, minW = Precision::Infinite();
+ gp_Pnt tgtP;
+ for ( int iInt = 1; iInt <= intersect.NbPoints(); ++iInt )
+ {
+ W = intersect.Point( iInt ).W();
+ if ( 0 < W && W < minW )
+ {
+ U = intersect.Point( iInt ).U();
+ V = intersect.Point( iInt ).V();
+ tgtP = intersect.Point( iInt ).Pnt();
+ minW = W;
+ }
+ }
+ n = tgtMeshDS->AddNode( tgtP.X(), tgtP.Y(), tgtP.Z() );
+ }
+
+ SMDS_TypeOfPosition shapeType = srcNode->GetPosition()->GetTypeOfPosition();
+ TopoDS_Shape srcShape;
+ if ( shapeType != SMDS_TOP_FACE )
+ {
+ srcShape = srcHelper->GetSubShapeByNode( srcNode, srcHelper->GetMeshDS() );
+ if ( !theShape2ShapeMap.IsBound( srcShape, /*isSrc=*/true ))
+ {
+ if ( n ) // INTERNAL shape w/o corresponding target shape (3D_mesh_Extrusion_02/E0)
+ shapeType = SMDS_TOP_FACE;
+ else
+ return false;
+ }
+ }
+
+ switch ( shapeType )
+ {
+ case SMDS_TOP_FACE: {
+ if ( !n )
+ return false;
+ tgtMeshDS->SetNodeOnFace( n, helper->GetSubShapeID(), U, V );
+ break;
+ }
+ case SMDS_TOP_EDGE: {
+ TopoDS_Edge tgtEdge = TopoDS::Edge( theShape2ShapeMap( srcShape, /*isSrc=*/true ));
+ if ( n )
+ {
+ U = Precision::Infinite();
+ helper->CheckNodeU( tgtEdge, n, U, Precision::PConfusion());
+ }
+ else
+ {
+ Handle(Geom_Curve) tgtCurve = BRep_Tool::Curve( tgtEdge, U,V );
+ if ( tgtCurve.IsNull() )
+ return false;
+ GeomAPI_ExtremaCurveCurve extrema( thePiercingLine, tgtCurve );
+ if ( !extrema.Extrema().IsDone() ||
+ extrema.Extrema().IsParallel() ||
+ extrema.NbExtrema() == 0 )
+ return false;
+ gp_Pnt pOnLine, pOnEdge;
+ extrema.NearestPoints( pOnLine, pOnEdge );
+ extrema.LowerDistanceParameters( V, U );
+ n = tgtMeshDS->AddNode( pOnEdge.X(), pOnEdge.Y(), pOnEdge.Z() );
+ }
+ tgtMeshDS->SetNodeOnEdge( n, tgtEdge, U );
+ break;
+ }
+ case SMDS_TOP_VERTEX: {
+ TopoDS_Shape tgtV = theShape2ShapeMap( srcShape, /*isSrc=*/true );
+ if ( !n )
+ {
+ gp_Pnt tgtP = BRep_Tool::Pnt( TopoDS::Vertex( tgtV ));
+ n = tgtMeshDS->AddNode( tgtP.X(), tgtP.Y(), tgtP.Z() );
+ }
+ tgtMeshDS->SetNodeOnVertex( n, TopoDS::Vertex( tgtV ));
+ break;
+ }
+ default:;
+ }
+ srcN_tgtN->second = n;
+ }
+ tgtNodes[i] = srcN_tgtN->second;
+ }
+ // create a new face (with reversed orientation)
+ switch ( nbN )
+ {
+ case 3: helper->AddFace(tgtNodes[0], tgtNodes[2], tgtNodes[1]); break;
+ case 4: helper->AddFace(tgtNodes[0], tgtNodes[3], tgtNodes[2], tgtNodes[1]); break;
+ }
+ } // loop on all mesh faces on srcFace
+
+ return true;
+
+ } // projectByPiercing()
+
- } // bool projectBy2DSimilarity(...)
} // namespace
//=======================================================================
//function : Compute
-//purpose :
+//purpose :
//=======================================================================
bool StdMeshers_Projection_2D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape& theShape)
{
- MESSAGE("Projection_2D Compute");
+ _src2tgtNodes.clear();
+
if ( !_sourceHypo )
return false;
srcMesh = tgtMesh;
SMESHDS_Mesh * meshDS = theMesh.GetMeshDS();
+ SMESH_MesherHelper helper( theMesh );
// ---------------------------
// Make sub-shapes association
TopoDS_Face tgtFace = TopoDS::Face( theShape.Oriented(TopAbs_FORWARD));
TopoDS_Shape srcShape = _sourceHypo->GetSourceFace().Oriented(TopAbs_FORWARD);
+ helper.SetSubShape( tgtFace );
+
TAssocTool::TShapeShapeMap shape2ShapeMap;
TAssocTool::InitVertexAssociation( _sourceHypo, shape2ShapeMap );
+ if ( shape2ShapeMap.IsEmpty() )
+ initAssoc4Quad2Closed( tgtFace, helper, srcShape, srcMesh, shape2ShapeMap );
+
+ Handle(Geom_Line) piercingLine;
+ bool piercingTried = false;
+
if ( !TAssocTool::FindSubShapeAssociation( tgtFace, tgtMesh, srcShape, srcMesh,
shape2ShapeMap) ||
!shape2ShapeMap.IsBound( tgtFace ))
{
- if ( srcShape.ShapeType() == TopAbs_FACE )
+ piercingTried = true;
+ if ( !findSubShapeAssociationByPiercing( tgtFace, tgtMesh, srcShape, srcMesh,
+ shape2ShapeMap, piercingLine ))
{
- int nbE1 = SMESH_MesherHelper::Count( tgtFace, TopAbs_EDGE, /*ignoreSame=*/true );
- int nbE2 = SMESH_MesherHelper::Count( srcShape, TopAbs_EDGE, /*ignoreSame=*/true );
- if ( nbE1 != nbE2 )
- return error(COMPERR_BAD_SHAPE,
- SMESH_Comment("Different number of edges in source and target faces: ")
- << nbE2 << " and " << nbE1 );
+ if ( srcShape.ShapeType() == TopAbs_FACE )
+ {
+ int nbE1 = helper.Count( tgtFace, TopAbs_EDGE, /*ignoreSame=*/true );
+ int nbE2 = helper.Count( srcShape, TopAbs_EDGE, /*ignoreSame=*/true );
+ if ( nbE1 != nbE2 )
+ return error(COMPERR_BAD_SHAPE,
+ SMESH_Comment("Different number of edges in source and target faces: ")
+ << nbE2 << " and " << nbE1 );
+ }
+ return error(COMPERR_BAD_SHAPE,"Topology of source and target faces seems different" );
}
- return error(COMPERR_BAD_SHAPE,"Topology of source and target faces seems different" );
}
TopoDS_Face srcFace = TopoDS::Face( shape2ShapeMap( tgtFace ).Oriented(TopAbs_FORWARD));
// Projection
// ===========
- // find out if EDGEs are meshed or not
- bool is1DComputed = false;
- SMESH_subMeshIteratorPtr smIt = tgtSubMesh->getDependsOnIterator(/*includeSelf=*/false,
- /*complexShapeFirst=*/true);
- while ( smIt->more() && !is1DComputed )
- {
- SMESH_subMesh* sm = smIt->next();
- if ( sm->GetSubShape().ShapeType() == TopAbs_EDGE )
- is1DComputed = sm->IsMeshComputed();
- }
+ // get ordered src and tgt EDGEs
+ TSideVector srcWires, tgtWires;
+ bool is1DComputed = false; // if any tgt EDGE is meshed
+ TError err = getWires( tgtFace, srcFace, tgtMesh, srcMesh, &helper,
+ shape2ShapeMap, srcWires, tgtWires, _src2tgtNodes, is1DComputed );
+ if ( err && !err->IsOK() )
+ return error( err );
- bool done = false;
+ bool projDone = false;
- if ( !done )
+ if ( !projDone && !piercingLine.IsNull() )
+ {
+ // project by piercing tgtFace by lines parallel to piercingLine
+ projDone = projectByPiercing( piercingLine, tgtFace, srcFace, tgtWires, srcWires,
+ shape2ShapeMap, _src2tgtNodes, is1DComputed );
+ piercingTried = true;
+ }
+ if ( !projDone )
{
// try to project from the same face with different location
- done = projectPartner( tgtFace, srcFace, tgtMesh, srcMesh, shape2ShapeMap );
+ projDone = projectPartner( tgtFace, srcFace, tgtWires, srcWires,
+ shape2ShapeMap, _src2tgtNodes, is1DComputed );
}
- if ( !done )
+ if ( !projDone )
{
// projection in case if the faces are similar in 2D space
- done = projectBy2DSimilarity( tgtFace, srcFace, tgtMesh, srcMesh, shape2ShapeMap, is1DComputed);
+ projDone = projectBy2DSimilarity( tgtFace, srcFace, tgtWires, srcWires,
+ shape2ShapeMap, _src2tgtNodes, is1DComputed );
+ }
+ if ( !projDone )
+ {
+ // projection in case of quadrilateral faces
+ // NOT IMPLEMENTED, returns false
+ projDone = projectQuads( tgtFace, srcFace, tgtWires, srcWires,
+ shape2ShapeMap, _src2tgtNodes, is1DComputed);
+ }
+ if ( !projDone && !piercingTried )
+ {
+ // project by piercing tgtFace by lines parallel to piercingLine
+ projDone = projectByPiercing( piercingLine, tgtFace, srcFace, tgtWires, srcWires,
+ shape2ShapeMap, _src2tgtNodes, is1DComputed );
}
- SMESH_MesherHelper helper( theMesh );
- helper.SetSubShape( tgtFace );
+ // it will remove mesh built on edges and vertices in failure case
+ MeshCleaner cleaner( tgtSubMesh );
- if ( !done )
+ if ( !projDone )
{
+ _src2tgtNodes.clear();
// --------------------
- // Prepare to mapping
+ // Prepare to mapping
// --------------------
// Check if node projection to a face is needed
Bnd_B2d uvBox;
SMDS_ElemIteratorPtr faceIt = srcSubMesh->GetSubMeshDS()->GetElements();
- int nbFaceNodes = 0;
- for ( ; nbFaceNodes < 3 && faceIt->more(); ) {
+ set< const SMDS_MeshNode* > faceNodes;
+ for ( ; faceNodes.size() < 3 && faceIt->more(); ) {
const SMDS_MeshElement* face = faceIt->next();
SMDS_ElemIteratorPtr nodeIt = face->nodesIterator();
while ( nodeIt->more() ) {
const SMDS_MeshNode* node = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
- if ( node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) {
- nbFaceNodes++;
+ if ( node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE &&
+ faceNodes.insert( node ).second )
uvBox.Add( helper.GetNodeUV( srcFace, node ));
- }
}
}
- const bool toProjectNodes =
- ( nbFaceNodes > 0 && ( uvBox.IsVoid() || uvBox.SquareExtent() < DBL_MIN ));
+ bool toProjectNodes = false;
+ if ( faceNodes.size() == 1 )
+ toProjectNodes = ( uvBox.IsVoid() || uvBox.CornerMin().IsEqual( gp_XY(0,0), 1e-12 ));
+ else if ( faceNodes.size() > 1 )
+ toProjectNodes = ( uvBox.IsVoid() || uvBox.SquareExtent() < DBL_MIN );
// Find the corresponding source and target vertex
// and <theReverse> flag needed to call mapper.Apply()
TopoDS_Vertex srcV1, tgtV1;
bool reverse = false;
- if ( _sourceHypo->HasVertexAssociation() ) {
- srcV1 = _sourceHypo->GetSourceVertex(1);
- tgtV1 = _sourceHypo->GetTargetVertex(1);
- } else {
- srcV1 = TopoDS::Vertex( TopExp_Explorer( srcFace, TopAbs_VERTEX ).Current() );
- tgtV1 = TopoDS::Vertex( shape2ShapeMap( srcV1, /*isSrc=*/true ));
- }
+ TopExp_Explorer vSrcExp( srcFace, TopAbs_VERTEX );
+ srcV1 = TopoDS::Vertex( vSrcExp.Current() );
+ tgtV1 = TopoDS::Vertex( shape2ShapeMap( srcV1, /*isSrc=*/true ));
+
list< TopoDS_Edge > tgtEdges, srcEdges;
list< int > nbEdgesInWires;
SMESH_Block::GetOrderedEdges( tgtFace, tgtEdges, nbEdgesInWires, tgtV1 );
TopoDS_Edge srcE1 = srcEdges.front(), tgtE1 = tgtEdges.front();
TopoDS_Shape srcE1bis = shape2ShapeMap( tgtE1 );
reverse = ( ! srcE1.IsSame( srcE1bis ));
- if ( reverse &&
- _sourceHypo->HasVertexAssociation() &&
+ if ( ( reverse || srcE1.Orientation() != srcE1bis.Orientation() ) &&
nbEdgesInWires.front() > 2 &&
helper.IsRealSeam( tgtEdges.front() ))
{
+ if ( srcE1.Orientation() != srcE1bis.Orientation() )
+ reverse = true;
// projection to a face with seam EDGE; pb is that GetOrderedEdges()
// always puts a seam EDGE first (if possible) and as a result
// we can't use only theReverse flag to correctly associate source
// and target faces in the mapper. Thus we select srcV1 so that
// GetOrderedEdges() to return EDGEs in a needed order
- list< TopoDS_Edge >::iterator edge = srcEdges.begin();
- for ( ; edge != srcEdges.end(); ++edge ) {
- if ( srcE1bis.IsSame( *edge )) {
- srcV1 = helper.IthVertex( 0, *edge );
- break;
+ TopoDS_Face tgtFaceBis = tgtFace;
+ TopTools_MapOfShape checkedVMap( tgtEdges.size() );
+ checkedVMap.Add ( srcV1 );
+ for ( vSrcExp.Next(); vSrcExp.More(); )
+ {
+ tgtFaceBis.Reverse();
+ tgtEdges.clear();
+ SMESH_Block::GetOrderedEdges( tgtFaceBis, tgtEdges, nbEdgesInWires, tgtV1 );
+ bool ok = true;
+ list< TopoDS_Edge >::iterator edgeS = srcEdges.begin(), edgeT = tgtEdges.begin();
+ for ( ; edgeS != srcEdges.end() && ok ; ++edgeS, ++edgeT )
+ ok = edgeT->IsSame( shape2ShapeMap( *edgeS, /*isSrc=*/true ));
+ if ( ok )
+ break; // FOUND!
+
+ reverse = !reverse;
+ if ( reverse )
+ {
+ vSrcExp.Next();
+ while ( vSrcExp.More() && !checkedVMap.Add( vSrcExp.Current() ))
+ vSrcExp.Next();
+ }
+ else
+ {
+ srcV1 = TopoDS::Vertex( vSrcExp.Current() );
+ tgtV1 = TopoDS::Vertex( shape2ShapeMap( srcV1, /*isSrc=*/true ));
+ srcEdges.clear();
+ SMESH_Block::GetOrderedEdges( srcFace, srcEdges, nbEdgesInWires, srcV1 );
+ }
+ }
+ }
+ // for the case: project to a closed face from a non-closed face w/o vertex assoc;
+ // avoid projecting to a seam from two EDGEs with different nb nodes on them
+ // ( test mesh_Projection_2D_01/B1 )
+ if ( !_sourceHypo->HasVertexAssociation() &&
+ nbEdgesInWires.front() > 2 &&
+ helper.IsRealSeam( tgtEdges.front() ))
+ {
+ TopoDS_Shape srcEdge1 = shape2ShapeMap( tgtEdges.front() );
+ list< TopoDS_Edge >::iterator srcEdge2 =
+ std::find( srcEdges.begin(), srcEdges.end(), srcEdge1);
+ list< TopoDS_Edge >::iterator srcEdge3 =
+ std::find( srcEdges.begin(), srcEdges.end(), srcEdge1.Reversed());
+ if ( srcEdge2 == srcEdges.end() || srcEdge3 == srcEdges.end() ) // srcEdge1 is not a seam
+ {
+ // find srcEdge2 which also will be projected to tgtEdges.front()
+ for ( srcEdge2 = srcEdges.begin(); srcEdge2 != srcEdges.end(); ++srcEdge2 )
+ if ( !srcEdge1.IsSame( *srcEdge2 ) &&
+ tgtEdges.front().IsSame( shape2ShapeMap( *srcEdge2, /*isSrc=*/true )))
+ break;
+ // compare nb nodes on srcEdge1 and srcEdge2
+ if ( srcEdge2 != srcEdges.end() )
+ {
+ smIdType nbN1 = 0, nbN2 = 0;
+ if ( SMESHDS_SubMesh* sm = srcMesh->GetMeshDS()->MeshElements( srcEdge1 ))
+ nbN1 = sm->NbNodes();
+ if ( SMESHDS_SubMesh* sm = srcMesh->GetMeshDS()->MeshElements( *srcEdge2 ))
+ nbN2 = sm->NbNodes();
+ if ( nbN1 != nbN2 )
+ srcV1 = helper.IthVertex( 1, srcEdges.front() );
}
}
}
}
- else if ( nbEdgesInWires.front() == 1 )
+ else if ( nbEdgesInWires.front() == 1 ) // a sole edge in a wire
{
- // TODO::Compare orientation of curves in a sole edge
- //RETURN_BAD_RESULT("Not implemented case");
+ TopoDS_Edge srcE1 = srcEdges.front(), tgtE1 = tgtEdges.front();
+ for ( size_t iW = 0; iW < srcWires.size(); ++iW )
+ {
+ StdMeshers_FaceSidePtr srcWire = srcWires[iW];
+ for ( int iE = 0; iE < srcWire->NbEdges(); ++iE )
+ if ( srcE1.IsSame( srcWire->Edge( iE )))
+ {
+ reverse = ( tgtE1.Orientation() != tgtWires[iW]->Edge( iE ).Orientation() );
+ break;
+ }
+ }
}
else
{
// Load pattern from the source face
SMESH_Pattern mapper;
- mapper.Load( srcMesh, srcFace, toProjectNodes, srcV1 );
+ mapper.Load( srcMesh, srcFace, toProjectNodes, srcV1, /*keepNodes=*/true );
if ( mapper.GetErrorCode() != SMESH_Pattern::ERR_OK )
return error(COMPERR_BAD_INPUT_MESH,"Can't load mesh pattern from the source face");
// --------------------
- // Perform 2D mapping
+ // Perform 2D mapping
// --------------------
// Compute mesh on a target face
mapper.Apply( tgtFace, tgtV1, reverse );
- if ( mapper.GetErrorCode() != SMESH_Pattern::ERR_OK )
+ if ( mapper.GetErrorCode() != SMESH_Pattern::ERR_OK ) {
+ // std::ofstream file("/tmp/Pattern.smp" );
+ // mapper.Save( file );
return error("Can't apply source mesh pattern to the face");
+ }
// Create the mesh
if ( mapper.GetErrorCode() != SMESH_Pattern::ERR_OK )
return error("Can't make mesh by source mesh pattern");
- // it will remove mesh built by pattern mapper on edges and vertices
- // in failure case
- MeshCleaner cleaner( tgtSubMesh );
+ // fill _src2tgtNodes
+ std::vector< const SMDS_MeshNode* > *srcNodes, *tgtNodes;
+ mapper.GetInOutNodes( srcNodes, tgtNodes );
+ size_t nbN = std::min( srcNodes->size(), tgtNodes->size() );
+ for ( size_t i = 0; i < nbN; ++i )
+ if ( (*srcNodes)[i] && (*tgtNodes)[i] )
+ _src2tgtNodes.insert( make_pair( (*srcNodes)[i], (*tgtNodes)[i] ));
+
+
+ } // end of projection using Pattern mapping
+ {
// -------------------------------------------------------------------------
// mapper doesn't take care of nodes already existing on edges and vertices,
- // so we must merge nodes created by it with existing ones
+ // so we must merge nodes created by it with existing ones
// -------------------------------------------------------------------------
SMESH_MeshEditor::TListOfListOfNodes groupsOfNodes;
// Make groups of nodes to merge
// loop on EDGE and VERTEX sub-meshes of a target FACE
- smIt = tgtSubMesh->getDependsOnIterator(/*includeSelf=*/false,/*complexShapeFirst=*/false);
+ SMESH_subMeshIteratorPtr smIt = tgtSubMesh->getDependsOnIterator(/*includeSelf=*/false,
+ /*complexShapeFirst=*/false);
while ( smIt->more() )
{
SMESH_subMesh* sm = smIt->next();
if ( !smDS || smDS->NbNodes() == 0 )
continue;
//if ( !is1DComputed && sm->GetSubShape().ShapeType() == TopAbs_EDGE )
- //break;
+ // break;
if ( helper.IsDegenShape( sm->GetId() ) ) // to merge all nodes on degenerated
{
continue; // do not treat sm of degen VERTEX
}
- // Sort new and old nodes of a submesh separately
+ // Sort new and old nodes of a sub-mesh separately
bool isSeam = helper.IsRealSeam( sm->GetId() );
// mapper changed, no more "mapper puts on a seam edge nodes from 2 edges"
if ( isSeam && ! getBoundaryNodes ( sm, tgtFace, u2nodesOnSeam, seamNodes ))
- ;//RETURN_BAD_RESULT("getBoundaryNodes() failed");
+ {
+ //RETURN_BAD_RESULT("getBoundaryNodes() failed");
+ }
SMDS_NodeIteratorPtr nIt = smDS->GetNodes();
while ( nIt->more() )
break;
}
case SMDS_TOP_EDGE: {
- const SMDS_EdgePosition* pos =
- static_cast<const SMDS_EdgePosition*>(node->GetPosition());
+ SMDS_EdgePositionPtr pos = node->GetPosition();
pos2nodes.insert( make_pair( pos->GetUParameter(), node ));
break;
}
if ( u2nodesMaps[ NEW_NODES ].size() > 0 &&
u2nodesMaps[ OLD_NODES ].size() > 0 )
{
- u_oldNode = u2nodesMaps[ OLD_NODES ].begin();
+ u_oldNode = u2nodesMaps[ OLD_NODES ].begin();
newEnd = u2nodesMaps[ OLD_NODES ].end();
for ( ; u_oldNode != newEnd; ++u_oldNode )
SMESH_Algo::addBadInputElement( u_oldNode->second );
u2nodesOnSeam.size() > 0 &&
seam.ShapeType() == TopAbs_EDGE )
{
- int nbE1 = SMESH_MesherHelper::Count( tgtFace, TopAbs_EDGE, /*ignoreSame=*/true );
- int nbE2 = SMESH_MesherHelper::Count( srcFace, TopAbs_EDGE, /*ignoreSame=*/true );
+ int nbE1 = helper.Count( tgtFace, TopAbs_EDGE, /*ignoreSame=*/true );
+ int nbE2 = helper.Count( srcFace, TopAbs_EDGE, /*ignoreSame=*/true );
if ( nbE1 != nbE2 ) // 2 EDGEs are mapped to a seam EDGE
{
// find the 2 EDGEs of srcFace
// Make groups of nodes to merge
- u_oldNode = u2nodesMaps[ OLD_NODES ].begin();
+ u_oldNode = u2nodesMaps[ OLD_NODES ].begin();
u_newNode = u2nodesMaps[ NEW_NODES ].begin();
newEnd = u2nodesMaps[ NEW_NODES ].end();
u_newOnSeam = u2nodesOnSeam.begin();
// Merge
SMESH_MeshEditor editor( tgtMesh );
- int nbFaceBeforeMerge = tgtSubMesh->GetSubMeshDS()->NbElements();
+ smIdType nbFaceBeforeMerge = tgtSubMesh->GetSubMeshDS()->NbElements();
editor.MergeNodes( groupsOfNodes );
- int nbFaceAtferMerge = tgtSubMesh->GetSubMeshDS()->NbElements();
+ smIdType nbFaceAtferMerge = tgtSubMesh->GetSubMeshDS()->NbElements();
if ( nbFaceBeforeMerge != nbFaceAtferMerge && !helper.HasDegeneratedEdges() )
return error(COMPERR_BAD_INPUT_MESH, "Probably invalid node parameters on geom faces");
// The mapper can't create quadratic elements, so convert if needed
// ----------------------------------------------------------------
+ SMDS_ElemIteratorPtr faceIt;
faceIt = srcSubMesh->GetSubMeshDS()->GetElements();
bool srcIsQuad = faceIt->next()->IsQuadratic();
faceIt = tgtSubMesh->GetSubMeshDS()->GetElements();
editor.ConvertToQuadratic(/*theForce3d=*/false, tgtFaces, false);
}
+ } // end of coincident nodes and quadratic elements treatment
- cleaner.Release(); // not to remove mesh
-
- } // end of projection using Pattern mapping
+ if ( !projDone || is1DComputed )
+ // ----------------------------------------------------------------
+ // The mapper can create distorted faces by placing nodes out of the FACE
+ // boundary, also bad faces can be created if EDGEs already discretized
+ // --> fix bad faces by smoothing
+ // ----------------------------------------------------------------
+ if ( helper.IsDistorted2D( tgtSubMesh, /*checkUV=*/false, &helper ))
+ {
+ TAssocTool::Morph morph( srcWires );
+ morph.Perform( helper, tgtWires, helper.GetSurface( tgtFace ),
+ _src2tgtNodes, /*moveAll=*/true );
+ if ( !fixDistortedFaces( helper, tgtWires ))
+ return error("Invalid mesh generated");
+ }
// ---------------------------
// Check elements orientation
// ---------------------------
}
}
+ cleaner.Release(); // not to remove mesh
+
return true;
}
//=======================================================================
//function : Evaluate
-//purpose :
+//purpose :
//=======================================================================
bool StdMeshers_Projection_2D::Evaluate(SMESH_Mesh& theMesh,
// Assure that mesh on a source Face is computed/evaluated
// -------------------------------------------------------
- std::vector<int> aVec;
+ std::vector<smIdType> aVec;
SMESH_subMesh* srcSubMesh = srcMesh->GetSubMesh( srcFace );
if ( srcSubMesh->IsMeshComputed() )
