-// Copyright (C) 2007-2012 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2014 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
// 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.
+// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
#include <Bnd_B2d.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
+#include <TopTools_DataMapIteratorOfDataMapOfShapeShape.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopoDS.hxx>
#include <gp_Ax2.hxx>
#define RETURN_BAD_RESULT(msg) { MESSAGE(")-: Error: " << msg); return false; }
-typedef StdMeshers_ProjectionUtils TAssocTool;
+namespace TAssocTool = StdMeshers_ProjectionUtils;
+//typedef StdMeshers_ProjectionUtils TAssocTool;
//=======================================================================
//function : StdMeshers_Projection_2D
:SMESH_2D_Algo(hypId, studyId, gen)
{
_name = "Projection_2D";
- _shapeType = (1 << TopAbs_FACE); // 1 bit per shape type
-
_compatibleHypothesis.push_back("ProjectionSource2D");
_sourceHypo = 0;
}
/*!
* \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 face - the face bound the submesh
+ * \param face - the face bound by the submesh
* \param u2nodes - map to fill with nodes
* \param seamNodes - set of found nodes
* \retval bool - is a success
if ( !smV1->IsMeshComputed() || !smV2->IsMeshComputed() )
RETURN_BAD_RESULT("Empty vertex submeshes");
- // Look for a new node on V1
- nIt = smV1->GetSubMeshDS()->GetNodes();
const SMDS_MeshNode* nV1 = 0;
- while ( nIt->more() && !nV1 ) {
- const SMDS_MeshNode* node = nIt->next();
- if ( !isOldNode( node ) ) nV1 = node;
- }
- if ( !nV1 )
- RETURN_BAD_RESULT("No new node found on V1");
-
- // Find a new node connected to nV1 and belonging to edge submesh;
const SMDS_MeshNode* nE = 0;
- SMESHDS_SubMesh* smDS = sm->GetSubMeshDS();
- SMDS_ElemIteratorPtr vElems = nV1->GetInverseElementIterator(SMDSAbs_Face);
- while ( vElems->more() && !nE ) {
- const SMDS_MeshElement* elem = vElems->next();
- int nbNodes = elem->NbNodes();
- if ( elem->IsQuadratic() )
- nbNodes /= 2;
- int iV1 = elem->GetNodeIndex( nV1 );
- // try next after nV1
- int iE = SMESH_MesherHelper::WrapIndex( iV1 + 1, nbNodes );
- if ( smDS->Contains( elem->GetNode( iE ) ))
- nE = elem->GetNode( iE );
- if ( !nE ) {
- // try node before nV1
- iE = SMESH_MesherHelper::WrapIndex( iV1 - 1, nbNodes );
- if ( smDS->Contains( elem->GetNode( iE )))
+
+ // Look for nV1 - a new node on V1
+ nIt = smV1->GetSubMeshDS()->GetNodes();
+ while ( nIt->more() && !nE ) {
+ const SMDS_MeshNode* node = nIt->next();
+ if ( isOldNode( node ) ) continue;
+ nV1 = node;
+
+ // Find nE - a new node connected to nV1 and belonging to edge submesh;
+ SMESHDS_SubMesh* smDS = sm->GetSubMeshDS();
+ SMDS_ElemIteratorPtr vElems = nV1->GetInverseElementIterator(SMDSAbs_Face);
+ while ( vElems->more() && !nE ) {
+ const SMDS_MeshElement* elem = vElems->next();
+ int nbNodes = elem->NbNodes();
+ if ( elem->IsQuadratic() )
+ nbNodes /= 2;
+ int iV1 = elem->GetNodeIndex( nV1 );
+ // try next after nV1
+ int iE = SMESH_MesherHelper::WrapIndex( iV1 + 1, nbNodes );
+ if ( smDS->Contains( elem->GetNode( iE ) ))
nE = elem->GetNode( iE );
- }
- if ( nE && elem->IsQuadratic() ) { // find medium node between nV1 and nE
- if ( Abs( iV1 - iE ) == 1 )
- nE = elem->GetNode( Min ( iV1, iE ) + nbNodes );
- else
- nE = elem->GetNode( elem->NbNodes() - 1 );
+ if ( !nE ) {
+ // try node before nV1
+ iE = SMESH_MesherHelper::WrapIndex( iV1 - 1, nbNodes );
+ if ( smDS->Contains( elem->GetNode( iE )))
+ nE = elem->GetNode( iE );
+ }
+ if ( nE && elem->IsQuadratic() ) { // find medium node between nV1 and nE
+ if ( Abs( iV1 - iE ) == 1 )
+ nE = elem->GetNode( Min ( iV1, iE ) + nbNodes );
+ else
+ nE = elem->GetNode( elem->NbNodes() - 1 );
+ }
}
}
+ if ( !nV1 )
+ RETURN_BAD_RESULT("No new node found on V1");
if ( !nE )
RETURN_BAD_RESULT("new node on edge not found");
// 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
- SMESH_subMesh * srcSM = srcMesh->GetSubMesh( srcFace );
+ 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 )
if ( tgtShape.ShapeType() == TopAbs_VERTEX )
{
tgtP = BRep_Tool::Pnt( TopoDS::Vertex( tgtShape ));
- pOK = true;
+ 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),tgtMesh->GetMeshDS())->GetID() << endl;
}
else if ( tgtPP.size() > 0 )
// Make sub-shapes association
// ---------------------------
- TopoDS_Face tgtFace = TopoDS::Face( theShape.Oriented(TopAbs_FORWARD));
+ TopoDS_Face tgtFace = TopoDS::Face( theShape.Oriented(TopAbs_FORWARD));
TopoDS_Shape srcShape = _sourceHypo->GetSourceFace().Oriented(TopAbs_FORWARD);
TAssocTool::TShapeShapeMap shape2ShapeMap;
if ( !TAssocTool::FindSubShapeAssociation( tgtFace, tgtMesh, srcShape, srcMesh,
shape2ShapeMap) ||
!shape2ShapeMap.IsBound( tgtFace ))
+ {
+ if ( srcShape.ShapeType() == TopAbs_FACE )
+ {
+ 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 );
+ }
return error(COMPERR_BAD_SHAPE,"Topology of source and target faces seems different" );
-
+ }
TopoDS_Face srcFace = TopoDS::Face( shape2ShapeMap( tgtFace ).Oriented(TopAbs_FORWARD));
// ----------------------------------------------
SMESH_subMesh* srcSubMesh = srcMesh->GetSubMesh( srcFace );
SMESH_subMesh* tgtSubMesh = tgtMesh->GetSubMesh( tgtFace );
+ string srcMeshError;
if ( tgtMesh == srcMesh ) {
if ( !TAssocTool::MakeComputed( srcSubMesh ))
- return error(COMPERR_BAD_INPUT_MESH,"Source mesh not computed");
+ srcMeshError = TAssocTool::SourceNotComputedError( srcSubMesh, this );
}
else {
if ( !srcSubMesh->IsMeshComputed() )
- return error(COMPERR_BAD_INPUT_MESH,"Source mesh not computed");
+ srcMeshError = TAssocTool::SourceNotComputedError();
}
+ if ( !srcMeshError.empty() )
+ return error(COMPERR_BAD_INPUT_MESH, srcMeshError );
// ===========
// Projection
done = projectBy2DSimilarity( tgtFace, srcFace, tgtMesh, srcMesh, shape2ShapeMap, is1DComputed);
}
+ SMESH_MesherHelper helper( theMesh );
+ helper.SetSubShape( tgtFace );
+
if ( !done )
{
// --------------------
// Prepare to mapping
// --------------------
- SMESH_MesherHelper helper( theMesh );
- helper.SetSubShape( tgtFace );
-
// Check if node projection to a face is needed
Bnd_B2d uvBox;
SMDS_ElemIteratorPtr faceIt = srcSubMesh->GetSubMeshDS()->GetElements();
const bool toProjectNodes =
( nbFaceNodes > 0 && ( uvBox.IsVoid() || uvBox.SquareExtent() < DBL_MIN ));
- // Load pattern from the source face
- SMESH_Pattern mapper;
- mapper.Load( srcMesh, srcFace, toProjectNodes );
- if ( mapper.GetErrorCode() != SMESH_Pattern::ERR_OK )
- return error(COMPERR_BAD_INPUT_MESH,"Can't load mesh pattern from the source face");
-
- // Find the first target vertex corresponding to first vertex of the <mapper>
+ // Find the corresponding source and target vertex
// and <theReverse> flag needed to call mapper.Apply()
- TopoDS_Vertex srcV1 = TopoDS::Vertex( mapper.GetSubShape( 1 ));
- if ( srcV1.IsNull() )
- RETURN_BAD_RESULT("Mesh is not bound to the face");
- if ( !shape2ShapeMap.IsBound( srcV1, /*isSrc=*/true ))
- RETURN_BAD_RESULT("Not associated vertices, srcV1 " << srcV1.TShape().operator->() );
- TopoDS_Vertex tgtV1 = TopoDS::Vertex( shape2ShapeMap( srcV1, /*isSrc=*/true ));
-
- if ( !SMESH_MesherHelper::IsSubShape( srcV1, srcFace ))
- RETURN_BAD_RESULT("Wrong srcV1 " << srcV1.TShape().operator->());
- if ( !SMESH_MesherHelper::IsSubShape( tgtV1, tgtFace ))
- RETURN_BAD_RESULT("Wrong tgtV1 " << tgtV1.TShape().operator->());
-
- // try to find out orientation by order of edges
+ 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 ));
+ }
list< TopoDS_Edge > tgtEdges, srcEdges;
list< int > nbEdgesInWires;
- SMESH_Block::GetOrderedEdges( tgtFace, tgtV1, tgtEdges, nbEdgesInWires);
- SMESH_Block::GetOrderedEdges( srcFace, srcV1, srcEdges, nbEdgesInWires);
- if ( nbEdgesInWires.front() > 1 ) // possible to find out
+ SMESH_Block::GetOrderedEdges( tgtFace, tgtEdges, nbEdgesInWires, tgtV1 );
+ SMESH_Block::GetOrderedEdges( srcFace, srcEdges, nbEdgesInWires, srcV1 );
+
+ if ( nbEdgesInWires.front() > 1 ) // possible to find out orientation
{
TopoDS_Edge srcE1 = srcEdges.front(), tgtE1 = tgtEdges.front();
TopoDS_Shape srcE1bis = shape2ShapeMap( tgtE1 );
reverse = ( ! srcE1.IsSame( srcE1bis ));
+ if ( reverse &&
+ _sourceHypo->HasVertexAssociation() &&
+ nbEdgesInWires.front() > 2 &&
+ helper.IsRealSeam( tgtEdges.front() ))
+ {
+ // 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;
+ }
+ }
+ }
}
else if ( nbEdgesInWires.front() == 1 )
{
RETURN_BAD_RESULT("Bad result from SMESH_Block::GetOrderedEdges()");
}
+ // Load pattern from the source face
+ SMESH_Pattern mapper;
+ mapper.Load( srcMesh, srcFace, toProjectNodes, srcV1 );
+ 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
// --------------------
// Make groups of nodes to merge
- // loop on edge and vertex submeshes of a target face
+ // loop on EDGE and VERTEX sub-meshes of a target FACE
smIt = tgtSubMesh->getDependsOnIterator(/*includeSelf=*/false,/*complexShapeFirst=*/false);
while ( smIt->more() )
{
//if ( !is1DComputed && sm->GetSubShape().ShapeType() == TopAbs_EDGE )
//break;
+ if ( helper.IsDegenShape( sm->GetId() ) ) // to merge all nodes on degenerated
+ {
+ if ( sm->GetSubShape().ShapeType() == TopAbs_EDGE )
+ {
+ groupsOfNodes.push_back( list< const SMDS_MeshNode* >() );
+ SMESH_subMeshIteratorPtr smDegenIt
+ = sm->getDependsOnIterator(/*includeSelf=*/true,/*complexShapeFirst=*/false);
+ while ( smDegenIt->more() )
+ if (( smDS = smDegenIt->next()->GetSubMeshDS() ))
+ {
+ SMDS_NodeIteratorPtr nIt = smDS->GetNodes();
+ while ( nIt->more() )
+ groupsOfNodes.back().push_back( nIt->next() );
+ }
+ }
+ continue; // do not treat sm of degen VERTEX
+ }
+
// Sort new and old nodes of a submesh separately
bool isSeam = helper.IsRealSeam( sm->GetId() );
map< double, const SMDS_MeshNode* >::iterator u_oldNode, u_newNode, u_newOnSeam, newEnd;
set< const SMDS_MeshNode* > seamNodes;
- // mapper puts on a seam edge nodes from 2 edges
+ // 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() )
u_oldNode = u2nodesMaps[ OLD_NODES ].begin();
newEnd = u2nodesMaps[ OLD_NODES ].end();
for ( ; u_oldNode != newEnd; ++u_oldNode )
- _badInputElements.push_back( u_oldNode->second );
+ SMESH_Algo::addBadInputElement( u_oldNode->second );
return error( COMPERR_BAD_INPUT_MESH,
SMESH_Comment( "Existing mesh mismatches the projected 2D mesh on " )
<< ( sm->GetSubShape().ShapeType() == TopAbs_EDGE ? "edge" : "vertex" )
<< " #" << sm->GetId() );
}
if ( isSeam && !mergeSeamToNew ) {
- //RETURN_BAD_RESULT
- MESSAGE("Different nb of old and seam nodes " <<
- u2nodesMaps[ OLD_NODES ].size() << " != " << u2nodesOnSeam.size());
+ const TopoDS_Shape& seam = sm->GetSubShape();
+ if ( u2nodesMaps[ NEW_NODES ].size() > 0 &&
+ 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 );
+ if ( nbE1 != nbE2 ) // 2 EDGEs are mapped to a seam EDGE
+ {
+ // find the 2 EDGEs of srcFace
+ TopTools_DataMapIteratorOfDataMapOfShapeShape src2tgtIt( shape2ShapeMap._map2to1 );
+ for ( ; src2tgtIt.More(); src2tgtIt.Next() )
+ if ( seam.IsSame( src2tgtIt.Value() ))
+ SMESH_Algo::addBadInputElements
+ ( srcMesh->GetMeshDS()->MeshElements( src2tgtIt.Key() ));
+ return error( COMPERR_BAD_INPUT_MESH,
+ "Different number of nodes on two edges projected to a seam edge" );
+ }
+ }
}
+
// Make groups of nodes to merge
+
u_oldNode = u2nodesMaps[ OLD_NODES ].begin();
u_newNode = u2nodesMaps[ NEW_NODES ].begin();
newEnd = u2nodesMaps[ NEW_NODES ].end();
groupsOfNodes.back().push_back( u_newNode->second );
groupsOfNodes.back().push_back( u_newOnSeam->second );
}
- }
+
+ } // loop on EDGE and VERTEX submeshes of a target FACE
// Merge
int nbFaceBeforeMerge = tgtSubMesh->GetSubMeshDS()->NbElements();
editor.MergeNodes( groupsOfNodes );
int nbFaceAtferMerge = tgtSubMesh->GetSubMeshDS()->NbElements();
- if ( nbFaceBeforeMerge != nbFaceAtferMerge )
+ if ( nbFaceBeforeMerge != nbFaceAtferMerge && !helper.HasDegeneratedEdges() )
return error(COMPERR_BAD_INPUT_MESH, "Probably invalid node parameters on geom faces");
// ----------------------------------------------------------------
while ( faceIt->more() )
tgtFaces.insert( tgtFaces.end(), faceIt->next() );
- editor.ConvertToQuadratic(/*theForce3d=*/false, tgtFaces);
+ editor.ConvertToQuadratic(/*theForce3d=*/false, tgtFaces, false);
}
cleaner.Release(); // not to remove mesh
}
}
// Fix orientation
- if ( SMESH_Algo::IsReversedSubMesh( face, meshDS ))
+ if ( helper.IsReversedSubMesh( face ))
{
SMESH_MeshEditor editor( tgtMesh );
SMDS_ElemIteratorPtr eIt = meshDS->MeshElements( face )->GetElements();