From 5958bdcce798556f2ef6866cb0066b0351f9b053 Mon Sep 17 00:00:00 2001 From: vsr Date: Fri, 3 Jun 2011 09:55:14 +0000 Subject: [PATCH] Merge from BR_Dev_For_6_3_1 03/06/2011 --- idl/SMESH_Gen.idl | 3 +- src/SMDS/SMDS_VolumeTool.hxx | 4 + src/SMESH/SMESH_Gen.cxx | 23 +- src/SMESH/SMESH_MeshEditor.cxx | 226 ++++++++----- src/SMESH/SMESH_MesherHelper.cxx | 312 ++++++++++++++---- src/SMESH_I/SMESH_Gen_i.cxx | 38 +-- src/SMESH_I/SMESH_Gen_i.hxx | 1 + src/SMESH_I/SMESH_Gen_i_1.cxx | 5 + src/SMESH_I/SMESH_Group_i.cxx | 17 +- src/StdMeshers/StdMeshers_Projection_2D.cxx | 11 +- .../StdMeshers_QuadToTriaAdaptor.cxx | 2 +- 11 files changed, 451 insertions(+), 191 deletions(-) diff --git a/idl/SMESH_Gen.idl b/idl/SMESH_Gen.idl index a8c315c19..9d70e066e 100644 --- a/idl/SMESH_Gen.idl +++ b/idl/SMESH_Gen.idl @@ -70,7 +70,8 @@ module SMESH const long Tag_EdgeGroups = 12; const long Tag_FaceGroups = 13; const long Tag_VolumeGroups = 14; - const long Tag_LastGroup = 14; + const long Tag_0DElementsGroups = 15; + const long Tag_LastGroup = 15; /*! * Hypothesis definintion error diff --git a/src/SMDS/SMDS_VolumeTool.hxx b/src/SMDS/SMDS_VolumeTool.hxx index b31bed788..9cc0ae829 100644 --- a/src/SMDS/SMDS_VolumeTool.hxx +++ b/src/SMDS/SMDS_VolumeTool.hxx @@ -139,12 +139,16 @@ class SMDS_EXPORT SMDS_VolumeTool // To comfort link iteration, the array // length == NbFaceNodes( faceIndex ) + 1 and // the last node index == the first one. + // NOTE: for the quadratic volume, node indoces are in the order the nodes encounter + // in face boundary and not the order they are in the mesh face const SMDS_MeshNode** GetFaceNodes( int faceIndex ); // Return the array of face nodes. // To comfort link iteration, the array // length == NbFaceNodes( faceIndex ) + 1 and // the last node == the first one. + // NOTE: for the quadratic volume, nodes are in the order they encounter in face boundary + // and not the order they are in the mesh face // WARNING: do not modify the array, some methods // work basing on its contents diff --git a/src/SMESH/SMESH_Gen.cxx b/src/SMESH/SMESH_Gen.cxx index 56da2ac33..8b2840eb1 100644 --- a/src/SMESH/SMESH_Gen.cxx +++ b/src/SMESH/SMESH_Gen.cxx @@ -25,14 +25,18 @@ // Author : Paul RASCLE, EDF // Module : SMESH // -#define CHRONODEF + +//#define CHRONODEF + #include "SMESH_Gen.hxx" -#include "SMESH_subMesh.hxx" -#include "SMESH_HypoFilter.hxx" -#include "SMESHDS_Document.hxx" + +#include "SMDS_Mesh.hxx" #include "SMDS_MeshElement.hxx" #include "SMDS_MeshNode.hxx" -#include "SMDS_Mesh.hxx" +#include "SMESHDS_Document.hxx" +#include "SMESH_HypoFilter.hxx" +#include "SMESH_MesherHelper.hxx" +#include "SMESH_subMesh.hxx" #include "utilities.h" #include "OpUtil.hxx" @@ -348,6 +352,15 @@ bool SMESH_Gen::Compute(SMESH_Mesh & aMesh, MESSAGE("Number of cell objects " << SMDS_MeshCell::nbCells); //myMesh->dumpGrid(); //aMesh.GetMeshDS()->Modified(); + + // fix quadratic mesh by bending iternal links near concave boundary + if ( aShape.IsSame( aMesh.GetShapeToMesh() ) && + !aShapesId ) // not preview + { + SMESH_MesherHelper aHelper( aMesh ); + if ( aHelper.IsQuadraticMesh() != SMESH_MesherHelper::LINEAR ) + aHelper.FixQuadraticElements(); + } return ret; } diff --git a/src/SMESH/SMESH_MeshEditor.cxx b/src/SMESH/SMESH_MeshEditor.cxx index 873fb5799..db3d48077 100644 --- a/src/SMESH/SMESH_MeshEditor.cxx +++ b/src/SMESH/SMESH_MeshEditor.cxx @@ -4019,93 +4019,111 @@ void SMESH_MeshEditor::makeWalls (TNodeOfNodeListMap & mapNewNodes, for ( int iStep = 0; iStep < nbSteps; iStep++ ) { vTool.Set( *v ); 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 ); - 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->GetNodeWrap( f->GetNodeIndex( nodes[ 0 ] ) + 1 )) + if ( ! (*v)->IsPoly() ) + switch ( nbn ) { + case 3: { ///// triangle + const SMDS_MeshFace * f = aMesh->FindFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ]); + if ( !f || + nodes[ 1 ] != f->GetNodeWrap( f->GetNodeIndex( nodes[ 0 ]) + nextShift )) { - myLastCreatedElems.Append(aMesh->AddFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ] )); - aMesh->RemoveElement(f); + 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 ] )); } - 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->GetNodeWrap( f->GetNodeIndex( nodes[ 0 ] ) + 1 )) + break; + } + case 4: { ///// quadrangle + const SMDS_MeshFace * f = + aMesh->FindFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ], nodes[ 3 ]); + if ( !f || + nodes[ 1 ] != f->GetNodeWrap( f->GetNodeIndex( nodes[ 0 ]) + nextShift )) { - myLastCreatedElems.Append(aMesh->AddFace( nodes[ 0 ], nodes[ 1 ], nodes[ 2 ], nodes[ 3 ] )); - aMesh->RemoveElement(f); - } - 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->GetNodeWrap( f->GetNodeIndex( nodes[ 0 ] ) + 1 )) { - const SMDS_MeshNode** tmpnodes = new const SMDS_MeshNode*[6]; - tmpnodes[0] = nodes[0]; - tmpnodes[1] = nodes[2]; - tmpnodes[2] = nodes[4]; - tmpnodes[3] = nodes[1]; - tmpnodes[4] = nodes[3]; - tmpnodes[5] = nodes[5]; - myLastCreatedElems.Append(aMesh->AddFace(nodes[0], nodes[2], nodes[4], - nodes[1], nodes[3], nodes[5])); - aMesh->RemoveElement(f); - } + 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 { /////// 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->GetNodeWrap( f->GetNodeIndex( nodes[ 0 ] ) + 1 )) { - const SMDS_MeshNode** tmpnodes = new const SMDS_MeshNode*[8]; - tmpnodes[0] = nodes[0]; - tmpnodes[1] = nodes[2]; - tmpnodes[2] = nodes[4]; - tmpnodes[3] = nodes[6]; - tmpnodes[4] = nodes[1]; - tmpnodes[5] = nodes[3]; - tmpnodes[6] = nodes[5]; - tmpnodes[7] = nodes[7]; - myLastCreatedElems.Append(aMesh->AddFace(nodes[0], nodes[2], nodes[4], nodes[6], - nodes[1], nodes[3], nodes[5], nodes[7])); - aMesh->RemoveElement(f); - } + break; + } + case 6: { /////// quadratic triangle + const SMDS_MeshFace * 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 ] )); } + break; } - else { //////// polygon - vector polygon_nodes ( nodes, &nodes[nbn] ); - const SMDS_MeshFace * f = aMesh->FindFace( polygon_nodes ); - if ( !f ) + default: /////// 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 || + 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 ])); + } + } // switch ( nbn ) + + else { //////// polygon + + vector 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 myLastCreatedElems.Append(aMesh->AddPolygonalFace(polygon_nodes)); - else if ( nodes[ 1 ] != f->GetNodeWrap( f->GetNodeIndex( nodes[ 0 ] ) + 1 )) - { - // TODO problem ChangeElementNodes : not the same number of nodes, not the same type - MESSAGE("ChangeElementNodes"); - aMesh->ChangeElementNodes( f, nodes, nbn ); - } } } + while ( srcElements.Length() < myLastCreatedElems.Length() ) srcElements.Append( *srcEdge ); @@ -4114,8 +4132,9 @@ void SMESH_MeshEditor::makeWalls (TNodeOfNodeListMap & mapNewNodes, // go to the next volume iVol = 0; while ( iVol++ < nbVolumesByStep ) v++; - } - } + + } // loop on steps + } // loop on volumes of one step } // sweep free links into faces // Make a ceiling face with a normal external to a volume @@ -7368,8 +7387,11 @@ void SMESH_MeshEditor::MergeNodes (TListOfListOfNodes & theGroupsOfNodes) } curNodes[ iCur ] = n; bool isUnique = nodeSet.insert( n ).second; - if ( isUnique ) + if ( isUnique ) { uniqueNodes[ iUnique++ ] = n; + if ( nbRepl && iRepl[ nbRepl-1 ] == iCur ) + --nbRepl; // n do not stick to a node of the elem + } iCur++; } @@ -7481,7 +7503,7 @@ void SMESH_MeshEditor::MergeNodes (TListOfListOfNodes & theGroupsOfNodes) } continue; - } + } // poly element // Regular elements // TODO not all the possible cases are solved. Find something more generic? @@ -7654,8 +7676,8 @@ void SMESH_MeshEditor::MergeNodes (TListOfListOfNodes & theGroupsOfNodes) isOk = false; SMDS_VolumeTool hexa (elem); hexa.SetExternalNormal(); - if ( nbUniqueNodes == 4 && nbRepl == 6 ) { - //////////////////////// ---> tetrahedron + 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 ]] && @@ -7665,12 +7687,9 @@ void SMESH_MeshEditor::MergeNodes (TListOfListOfNodes & theGroupsOfNodes) 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. @@ -7683,6 +7702,45 @@ void SMESH_MeshEditor::MergeNodes (TListOfListOfNodes & theGroupsOfNodes) } } } + 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 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++ ) { @@ -7820,6 +7878,10 @@ void SMESH_MeshEditor::MergeNodes (TListOfListOfNodes & theGroupsOfNodes) } } } // if ( nbUniqueNodes == 6 && nbRepl == 4 ) + else + { + MESSAGE("MergeNodes() removes hexahedron "<< elem); + } break; } // HEXAHEDRON @@ -9366,7 +9428,7 @@ void SMESH_MeshEditor::ConvertToQuadratic(const bool theForce3d) } } - if ( !theForce3d && !getenv("NO_FixQuadraticElements")) + 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(); diff --git a/src/SMESH/SMESH_MesherHelper.cxx b/src/SMESH/SMESH_MesherHelper.cxx index 5d26bb472..698446b5c 100644 --- a/src/SMESH/SMESH_MesherHelper.cxx +++ b/src/SMESH/SMESH_MesherHelper.cxx @@ -40,7 +40,7 @@ #include #include #include -//#include +#include #include #include #include @@ -735,7 +735,14 @@ gp_XY SMESH_MesherHelper::GetMiddleUV(const Handle(Geom_Surface)& surface, const gp_XY& p1, const gp_XY& p2) { - return applyIn2D( surface, p1, p2, & AverageUV ); + // NOTE: + // the proper place of getting basic surface seems to be in applyIn2D() + // but we put it here to decrease a risk of regressions just before releasing a version + Handle(Geom_Surface) surf = surface; + while ( !surf.IsNull() && surf->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface ))) + surf = Handle(Geom_RectangularTrimmedSurface)::DownCast( surf )->BasisSurface(); + + return applyIn2D( surf, p1, p2, & AverageUV ); } //======================================================================= @@ -1830,6 +1837,57 @@ double SMESH_MesherHelper::GetOtherParam(const double param) const return fabs(param-myPar1[i]) < fabs(param-myPar2[i]) ? myPar2[i] : myPar1[i]; } +namespace { + + //======================================================================= + /*! + * \brief Iterator on ancestors of the given type + */ + //======================================================================= + + struct TAncestorsIterator : public SMDS_Iterator + { + TopTools_ListIteratorOfListOfShape _ancIter; + TopAbs_ShapeEnum _type; + TopTools_MapOfShape _encountered; + TAncestorsIterator( const TopTools_ListOfShape& ancestors, TopAbs_ShapeEnum type) + : _ancIter( ancestors ), _type( type ) + { + if ( _ancIter.More() ) { + if ( _ancIter.Value().ShapeType() != _type ) next(); + else _encountered.Add( _ancIter.Value() ); + } + } + virtual bool more() + { + return _ancIter.More(); + } + virtual const TopoDS_Shape* next() + { + const TopoDS_Shape* s = _ancIter.More() ? & _ancIter.Value() : 0; + if ( _ancIter.More() ) + for ( _ancIter.Next(); _ancIter.More(); _ancIter.Next()) + if ( _ancIter.Value().ShapeType() == _type && _encountered.Add( _ancIter.Value() )) + break; + return s; + } + }; + +} // namespace + +//======================================================================= +/*! + * \brief Return iterator on ancestors of the given type + */ +//======================================================================= + +PShapeIteratorPtr SMESH_MesherHelper::GetAncestors(const TopoDS_Shape& shape, + const SMESH_Mesh& mesh, + TopAbs_ShapeEnum ancestorType) +{ + return PShapeIteratorPtr( new TAncestorsIterator( mesh.GetAncestors(shape), ancestorType)); +} + //#include //======================================================================= @@ -1882,7 +1940,7 @@ namespace { // Structures used by FixQuadraticElements() void Move(const gp_Vec& move, bool sum=false) const { _nodeMove += move; _nbMoves += sum ? (_nbMoves==0) : 1; } gp_XYZ Move() const { return _nodeMove.XYZ() / _nbMoves; } - bool IsMoved() const { return (_nbMoves > 0 && !IsStraight()); } + bool IsMoved() const { return (_nbMoves > 0 /*&& !IsStraight()*/); } bool IsStraight() const { return isStraightLink( (XYZ(node1())-XYZ(node2())).SquareModulus(), _nodeMove.SquareMagnitude()); @@ -1928,6 +1986,8 @@ namespace { // Structures used by FixQuadraticElements() const QLink* operator->() const { return _qlink; } gp_Vec Normal() const; + + bool IsStraight() const; }; // -------------------------------------------------------------------- typedef list< TChainLink > TChain; @@ -2105,9 +2165,10 @@ namespace { // Structures used by FixQuadraticElements() // chLink = chain.insert( chain.begin(), TChainLink(face->_sides[i])); // add a face to a chained link and put a continues face in the queue chLink->SetFace( face ); - if ( face->_sides[i]->MediumPos() >= pos ) + if ( face->_sides[i]->MediumPos() == pos ) if ( const QFace* contFace = face->_sides[i]->GetContinuesFace( face )) - faces.push_back( contFace ); + if ( contFace->_sides.size() == 3 ) + faces.push_back( contFace ); } } faces.pop_front(); @@ -2130,10 +2191,11 @@ namespace { // Structures used by FixQuadraticElements() // propagate from quadrangle to neighbour faces if ( link->MediumPos() >= pos ) { int nbLinkFaces = link->_faces.size(); - if ( nbLinkFaces == 4 || (nbLinkFaces < 4 && link->OnBoundary())) { + if ( nbLinkFaces == 4 || (/*nbLinkFaces < 4 && */link->OnBoundary())) { // hexahedral mesh or boundary quadrangles - goto a continous face if ( const QFace* f = link->GetContinuesFace( this )) - return f->GetLinkChain( *chLink, chain, pos, error ); + if ( f->_sides.size() == 4 ) + return f->GetLinkChain( *chLink, chain, pos, error ); } else { TChainLink chLink(link); // side face of prismatic mesh - visit all faces of iSide @@ -2327,7 +2389,7 @@ namespace { // Structures used by FixQuadraticElements() gp_Vec linkDir2(0,0,0); try { OCC_CATCH_SIGNALS; - if ( f1 ) + if ( f1 && theLink->MediumPos() <= (*link1)->MediumPos() ) len1 = f1->MoveByBoundary ( *link1, theRefVec, theLinks, theFaceHelper, len1, theStep-1, &linkDir1, theSign); else @@ -2338,7 +2400,7 @@ namespace { // Structures used by FixQuadraticElements() } try { OCC_CATCH_SIGNALS; - if ( f2 ) + if ( f2 && theLink->MediumPos() <= (*link2)->MediumPos() ) len2 = f2->MoveByBoundary ( *link2, theRefVec, theLinks, theFaceHelper, len2, theStep-1, &linkDir2, theSign); else @@ -2417,7 +2479,9 @@ namespace { // Structures used by FixQuadraticElements() if ( _faces.empty() ) return; - int iFaceCont = -1; + int iFaceCont = -1, nbBoundary = 0, iBoundary[2]={-1,-1}; + if ( _faces[0]->IsBoundary() ) + iBoundary[ nbBoundary++ ] = 0; for ( int iF = 1; iFaceCont < 0 && iF < _faces.size(); ++iF ) { // look for a face bounding none of volumes bound by _faces[0] @@ -2428,8 +2492,21 @@ namespace { // Structures used by FixQuadraticElements() _faces[iF]->_volumes[iV] == _faces[0]->_volumes[1]); if ( !sameVol ) iFaceCont = iF; + if ( _faces[iF]->IsBoundary() ) + iBoundary[ nbBoundary++ ] = iF; + } + // Set continues faces: arrange _faces to have + // _faces[0] continues to _faces[1] + // _faces[2] continues to _faces[3] + if ( nbBoundary == 2 ) // bnd faces are continues + { + if (( iBoundary[0] < 2 ) != ( iBoundary[1] < 2 )) + { + int iNear0 = iBoundary[0] < 2 ? 1-iBoundary[0] : 5-iBoundary[0]; + std::swap( _faces[ iBoundary[1] ], _faces[iNear0] ); + } } - if ( iFaceCont > 0 ) // continues faces found, set one by the other + else if ( iFaceCont > 0 ) // continues faces found { if ( iFaceCont != 1 ) std::swap( _faces[1], _faces[iFaceCont] ); @@ -2479,6 +2556,27 @@ namespace { // Structures used by FixQuadraticElements() if (_qfaces[1]) norm += _qfaces[1]->_normal; return norm; } + //================================================================================ + /*! + * \brief Test link curvature taking into account size of faces + */ + //================================================================================ + + bool TChainLink::IsStraight() const + { + bool isStraight = _qlink->IsStraight(); + if ( isStraight && _qfaces[0] && !_qfaces[1] ) + { + int i = _qfaces[0]->LinkIndex( _qlink ); + int iOpp = ( i + 2 ) % _qfaces[0]->_sides.size(); + gp_XYZ mid1 = _qlink->MiddlePnt(); + gp_XYZ mid2 = _qfaces[0]->_sides[ iOpp ]->MiddlePnt(); + double faceSize2 = (mid1-mid2).SquareModulus(); + isStraight = _qlink->_nodeMove.SquareMagnitude() < 1/3./3. * faceSize2; + } + return isStraight; + } + //================================================================================ /*! * \brief Move medium nodes of vertical links of pentahedrons adjacent by side faces @@ -2497,7 +2595,7 @@ namespace { // Structures used by FixQuadraticElements() bndLinks1.insert( lnk->_qlink ); else interLinks.insert( lnk->_qlink ); - isCurved = isCurved || !(*lnk)->IsStraight(); + isCurved = isCurved || !lnk->IsStraight(); } if ( !isCurved ) return; // no need to move @@ -2546,7 +2644,7 @@ namespace { // Structures used by FixQuadraticElements() for ( linkIt = linkSet.begin(); linkIt != linksEnd; ++linkIt) { - if ( linkIt->IsBoundary() && !(*linkIt)->IsStraight() && linkIt->_qfaces[0]) + if ( linkIt->IsBoundary() && !linkIt->IsStraight() && linkIt->_qfaces[0]) { // move iff a boundary link is bent towards inside of a face (issue 0021084) const QFace* face = linkIt->_qfaces[0]; @@ -2757,6 +2855,10 @@ namespace { // Structures used by FixQuadraticElements() void SMESH_MesherHelper::FixQuadraticElements(bool volumeOnly) { + // setenv NO_FixQuadraticElements to know if FixQuadraticElements() is guilty of bad conversion + if ( getenv("NO_FixQuadraticElements") ) + return; + // 0. Apply algorithm to solids or geom faces // ---------------------------------------------- if ( myShape.IsNull() ) { @@ -2789,7 +2891,7 @@ void SMESH_MesherHelper::FixQuadraticElements(bool volumeOnly) } // fix nodes on geom faces #ifdef _DEBUG_ - //int nbfaces = faces.Extent(); + int nbfaces = faces.Extent(); /*avoid "unused varianbles": */ nbfaces++, nbfaces--; #endif for ( TopTools_MapIteratorOfMapOfShape fIt( faces ); fIt.More(); fIt.Next() ) { MSG("FIX FACE " << nbfaces-- << " #" << GetMeshDS()->ShapeToIndex(fIt.Key())); @@ -2831,15 +2933,18 @@ void SMESH_MesherHelper::FixQuadraticElements(bool volumeOnly) bool isCurved = false; //bool hasRectFaces = false; //set nbElemNodeSet; + SMDS_VolumeTool volTool; + + TIDSortedNodeSet apexOfPyramid; + const int apexIndex = 4; if ( elemType == SMDSAbs_Volume ) { - SMDS_VolumeTool volTool; while ( elemIt->more() ) // loop on volumes { const SMDS_MeshElement* vol = elemIt->next(); if ( !vol->IsQuadratic() || !volTool.Set( vol )) - return; //continue; + return; for ( int iF = 0; iF < volTool.NbFaces(); ++iF ) // loop on faces of volume { int nbN = volTool.NbFaceNodes( iF ); @@ -2873,6 +2978,9 @@ void SMESH_MesherHelper::FixQuadraticElements(bool volumeOnly) faceNodes[4],faceNodes[6] ); #endif } + // collect pyramid apexes for further correction + if ( vol->NbCornerNodes() == 5 ) + apexOfPyramid.insert( vol->GetNode( apexIndex )); } set< QLink >::iterator pLink = links.begin(); for ( ; pLink != links.end(); ++pLink ) @@ -2907,9 +3015,9 @@ void SMESH_MesherHelper::FixQuadraticElements(bool volumeOnly) return; // no curved edges of faces // 3. Compute displacement of medium nodes - // ------------------------------------- + // --------------------------------------- - // two loops on faces: the first is to treat boundary links, the second is for internal ones + // two loops on QFaces: the first is to treat boundary links, the second is for internal ones TopLoc_Location loc; // not treat boundary of volumic submesh int isInside = ( elemType == SMDSAbs_Volume && volumeOnly ) ? 1 : 0; @@ -2921,7 +3029,7 @@ void SMESH_MesherHelper::FixQuadraticElements(bool volumeOnly) for ( pFace = faces.begin(); pFace != faces.end(); ++pFace ) { if ( bool(isInside) == pFace->IsBoundary() ) continue; - for ( int dir = 0; dir < 2; ++dir ) // 2 directions of propagation from quadrangle + for ( int dir = 0; dir < 2; ++dir ) // 2 directions of propagation from the quadrangle { MSG( "CHAIN"); // make chain of links connected via continues faces @@ -2954,12 +3062,12 @@ void SMESH_MesherHelper::FixQuadraticElements(bool volumeOnly) { TChain& chain = chains[iC]; if ( chain.empty() ) continue; - if ( chain.front()->IsStraight() && chain.back()->IsStraight() ) { + if ( chain.front().IsStraight() && chain.back().IsStraight() ) { MSG("3D straight - ignore"); continue; } if ( chain.front()->MediumPos() > bndPos || - chain.back()->MediumPos() > bndPos ) { + chain.back() ->MediumPos() > bndPos ) { MSG("Internal chain - ignore"); continue; } @@ -2989,9 +3097,11 @@ void SMESH_MesherHelper::FixQuadraticElements(bool volumeOnly) TopoDS_Face face; bool checkUV = true; - if ( !isInside ) { - // compute node displacement of end links in parametric space of face - const SMDS_MeshNode* nodeOnFace = (*(++chain.begin()))->_mediumNode; + if ( !isInside ) + { + // compute node displacement of end links of chain in parametric space of face + TChainLink& linkOnFace = *(++chain.begin()); + const SMDS_MeshNode* nodeOnFace = linkOnFace->_mediumNode; TopoDS_Shape f = GetSubShapeByNode( nodeOnFace, GetMeshDS() ); if ( !f.IsNull() && f.ShapeType() == TopAbs_FACE ) { @@ -3010,14 +3120,24 @@ void SMESH_MesherHelper::FixQuadraticElements(bool volumeOnly) ( is1 ? move1 : move0 ).SetCoord( uvMove.X(), uvMove.Y(), 0 ); if ( !is1 ) // correct nodeOnFace for move1 (issue 0020919) nodeOnFace = (*(++chain.rbegin()))->_mediumNode; - isStraight[is1] = isStraightLink( (uv2-uv1).SquareModulus(),uvMove.SquareModulus()); + isStraight[is1] = isStraightLink( (uv2-uv1).SquareModulus(), + 10 * uvMove.SquareModulus()); } -// if ( move0.SquareMagnitude() < straightTol2 && -// move1.SquareMagnitude() < straightTol2 ) { if ( isStraight[0] && isStraight[1] ) { MSG("2D straight - ignore"); continue; // straight - no need to move nodes of internal links } + + // check if a chain is already fixed + gp_XY uvm = GetNodeUV( face, linkOnFace->_mediumNode, 0, &checkUV); + gp_XY uv1 = GetNodeUV( face, linkOnFace->node1(), nodeOnFace, &checkUV); + gp_XY uv2 = GetNodeUV( face, linkOnFace->node2(), nodeOnFace, &checkUV); + gp_XY uv12 = GetMiddleUV( surf, uv1, uv2); + if (( uvm - uv12 ).SquareModulus() > 1e-10 ) + { + MSG("Already fixed - ignore"); + continue; + } } } gp_Trsf trsf; @@ -3087,60 +3207,106 @@ void SMESH_MesherHelper::FixQuadraticElements(bool volumeOnly) } // 4. Move nodes - // ----------- + // ------------- +// vector vols( 100 ); +// vector volSize( 100 ); +// int nbVols; +// bool ok; for ( pLink = links.begin(); pLink != links.end(); ++pLink ) { if ( pLink->IsMoved() ) { - //gp_Pnt p = pLink->MediumPnt() + pLink->Move(); gp_Pnt p = pLink->MiddlePnt() + pLink->Move(); GetMeshDS()->MoveNode( pLink->_mediumNode, p.X(), p.Y(), p.Z()); - } - } -} + // +// gp_Pnt pNew = pLink->MiddlePnt() + pLink->Move(); +// if ( pLink->MediumPos() != SMDS_TOP_3DSPACE ) +// { +// // avoid making distorted volumes near boundary +// SMDS_ElemIteratorPtr volIt = +// (*pLink)._mediumNode->GetInverseElementIterator( SMDSAbs_Volume ); +// for ( nbVols = 0; volIt->more() && volTool.Set( volIt->next() ); ++nbVols ) +// { +// vols [ nbVols ] = volTool.Element(); +// volSize[ nbVols ] = volTool.GetSize(); +// } +// gp_Pnt pOld = pLink->MediumPnt(); +// const_cast( pLink->_mediumNode )->setXYZ( pNew.X(), pNew.Y(), pNew.Z() ); +// ok = true; +// while ( nbVols-- && ok ) +// { +// volTool.Set( vols[ nbVols ]); +// ok = ( volSize[ nbVols ] * volTool.GetSize() > 1e-20 ); +// } +// if ( !ok ) +// { +// const_cast( pLink->_mediumNode )->setXYZ( pOld.X(), pOld.Y(), pOld.Z() ); +// MSG( "Do NOT move \t" << pLink->_mediumNode->GetID() +// << " because of distortion of volume " << vols[ nbVols+1 ]->GetID()); +// continue; +// } +// } +// GetMeshDS()->MoveNode( pLink->_mediumNode, pNew.X(), pNew.Y(), pNew.Z() ); + } + } + + //return; + + // issue 0020982 + // Move the apex of pyramid together with the most curved link + + TIDSortedNodeSet::iterator apexIt = apexOfPyramid.begin(); + for ( ; apexIt != apexOfPyramid.end(); ++apexIt ) + { + SMESH_TNodeXYZ apex = *apexIt; -//======================================================================= -/*! - * \brief Iterator on ancestors of the given type - */ -//======================================================================= + gp_Vec maxMove( 0,0,0 ); + double maxMoveSize2 = 0; -struct TAncestorsIterator : public SMDS_Iterator -{ - TopTools_ListIteratorOfListOfShape _ancIter; - TopAbs_ShapeEnum _type; - TopTools_MapOfShape _encountered; - TAncestorsIterator( const TopTools_ListOfShape& ancestors, TopAbs_ShapeEnum type) - : _ancIter( ancestors ), _type( type ) - { - if ( _ancIter.More() ) { - if ( _ancIter.Value().ShapeType() != _type ) next(); - else _encountered.Add( _ancIter.Value() ); + // shift of node index to get medium nodes between the base nodes + const int base2MediumShift = 5; + + // find maximal movement of medium node + SMDS_ElemIteratorPtr volIt = apex._node->GetInverseElementIterator( SMDSAbs_Volume ); + vector< const SMDS_MeshElement* > pyramids; + while ( volIt->more() ) + { + const SMDS_MeshElement* pyram = volIt->next(); + if ( pyram->GetEntityType() != SMDSEntity_Quad_Pyramid ) continue; + pyramids.push_back( pyram ); + + for ( int iBase = 0; iBase < apexIndex; ++iBase ) + { + SMESH_TNodeXYZ medium = pyram->GetNode( iBase + base2MediumShift ); + if ( medium._node->GetPosition()->GetTypeOfPosition() != SMDS_TOP_3DSPACE ) + { + SMESH_TNodeXYZ n1 = pyram->GetNode( iBase ); + SMESH_TNodeXYZ n2 = pyram->GetNode( ( iBase+1 ) % 4 ); + gp_Pnt middle = 0.5 * ( n1 + n2 ); + gp_Vec move( middle, medium ); + double moveSize2 = move.SquareMagnitude(); + if ( moveSize2 > maxMoveSize2 ) + maxMove = move, maxMoveSize2 = moveSize2; + } + } } - } - virtual bool more() - { - return _ancIter.More(); - } - virtual const TopoDS_Shape* next() - { - const TopoDS_Shape* s = _ancIter.More() ? & _ancIter.Value() : 0; - if ( _ancIter.More() ) - for ( _ancIter.Next(); _ancIter.More(); _ancIter.Next()) - if ( _ancIter.Value().ShapeType() == _type && _encountered.Add( _ancIter.Value() )) - break; - return s; - } -}; -//======================================================================= -/*! - * \brief Return iterator on ancestors of the given type - */ -//======================================================================= + // move the apex + if ( maxMoveSize2 > 1e-20 ) + { + apex += maxMove.XYZ(); + GetMeshDS()->MoveNode( apex._node, apex.X(), apex.Y(), apex.Z()); -PShapeIteratorPtr SMESH_MesherHelper::GetAncestors(const TopoDS_Shape& shape, - const SMESH_Mesh& mesh, - TopAbs_ShapeEnum ancestorType) -{ - return PShapeIteratorPtr( new TAncestorsIterator( mesh.GetAncestors(shape), ancestorType)); + // move medium nodes neighboring the apex to the middle + const int base2MediumShift_2 = 9; + for ( unsigned i = 0; i < pyramids.size(); ++i ) + for ( int iBase = 0; iBase < apexIndex; ++iBase ) + { + SMESH_TNodeXYZ base = pyramids[i]->GetNode( iBase ); + const SMDS_MeshNode* medium = pyramids[i]->GetNode( iBase + base2MediumShift_2 ); + gp_XYZ middle = 0.5 * ( apex + base ); + GetMeshDS()->MoveNode( medium, middle.X(), middle.Y(), middle.Z()); + } + } + } } + diff --git a/src/SMESH_I/SMESH_Gen_i.cxx b/src/SMESH_I/SMESH_Gen_i.cxx index 19c78bf8f..60a6136fe 100644 --- a/src/SMESH_I/SMESH_Gen_i.cxx +++ b/src/SMESH_I/SMESH_Gen_i.cxx @@ -2444,6 +2444,8 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CopyMesh(SMESH::SMESH_IDSource_ptr meshPart, } } + newMeshDS->Modified(); + *pyDump << newMesh << " = " << this << ".CopyMesh( " << meshPart << ", " << "'" << meshName << "', " @@ -3138,7 +3140,7 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent, // groups root sub-branch SALOMEDS::SObject_var myGroupsBranch; - for ( int i = GetNodeGroupsTag(); i <= GetVolumeGroupsTag(); i++ ) { + for ( int i = GetNodeGroupsTag(); i <= Get0DElementsGroupsTag(); i++ ) { found = gotBranch->FindSubObject( i, myGroupsBranch ); if ( found ) { char name_group[ 30 ]; @@ -3150,6 +3152,8 @@ SALOMEDS::TMPFile* SMESH_Gen_i::Save( SALOMEDS::SComponent_ptr theComponent, strcpy( name_group, "Groups of Faces" ); else if ( i == GetVolumeGroupsTag() ) strcpy( name_group, "Groups of Volumes" ); + else if ( i == Get0DElementsGroupsTag() ) + strcpy( name_group, "Groups of 0D Elements" ); aGroup = new HDFgroup( name_group, aTopGroup ); aGroup->CreateOnDisk(); @@ -3979,7 +3983,8 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent, } } - // try to get applied algorithms + // Try to get applied ALGORITHMS (mesh is not cleared by algo addition because + // nodes and elements are not yet put into sub-meshes) if ( aTopGroup->ExistInternalObject( "Applied Algorithms" ) ) { aGroup = new HDFgroup( "Applied Algorithms", aTopGroup ); aGroup->OpenOnDisk(); @@ -4127,21 +4132,6 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent, if ( aSubMesh->_is_nil() ) continue; - // VSR: Get submesh data from MED convertor - // int anInternalSubmeshId = aSubMesh->GetId(); // this is not a persistent ID, it's an internal one computed from sub-shape - // if (myNewMeshImpl->_mapSubMesh.find(anInternalSubmeshId) != myNewMeshImpl->_mapSubMesh.end()) { - // if(MYDEBUG) MESSAGE("VSR - SMESH_Gen_i::Load(): loading from MED file submesh with ID = " << - // subid << " for subshape # " << anInternalSubmeshId); - // SMESHDS_SubMesh* aSubMeshDS = - // myNewMeshImpl->_mapSubMesh[anInternalSubmeshId]->CreateSubMeshDS(); - // if ( !aSubMeshDS ) { - // if(MYDEBUG) MESSAGE("VSR - SMESH_Gen_i::Load(): FAILED to create a submesh for subshape # " << - // anInternalSubmeshId << " in current mesh!"); - // } - // else - // myReader.GetSubMesh( aSubMeshDS, subid ); - // } - // try to get applied algorithms if ( aSubGroup->ExistInternalObject( "Applied Algorithms" ) ) { // open "applied algorithms" HDF group @@ -4161,8 +4151,6 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent, aDataset->ReadFromDisk( refFromFile ); aDataset->CloseOnDisk(); - //SALOMEDS::SObject_var hypSO = myCurrentStudy->FindObjectID( refFromFile ); - //CORBA::Object_var hypObject = SObjectToObject( hypSO ); int id = atoi( refFromFile ); string anIOR = myStudyContext->getIORbyOldId( id ); if ( !anIOR.empty() ) { @@ -4198,8 +4186,6 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent, aDataset->ReadFromDisk( refFromFile ); aDataset->CloseOnDisk(); - //SALOMEDS::SObject_var hypSO = myCurrentStudy->FindObjectID( refFromFile ); - //CORBA::Object_var hypObject = SObjectToObject( hypSO ); int id = atoi( refFromFile ); string anIOR = myStudyContext->getIORbyOldId( id ); if ( !anIOR.empty() ) { @@ -4227,11 +4213,11 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent, if(hasData) { - // Read sub-meshes from MED - // ------------------------- + // Read sub-meshes + // ---------------- if(MYDEBUG) MESSAGE("Create all sub-meshes"); bool submeshesInFamilies = ( ! aTopGroup->ExistInternalObject( "Submeshes" )); - if ( submeshesInFamilies ) + if ( submeshesInFamilies ) // from MED { // old way working before fix of PAL 12992 myReader.CreateAllSubMeshes(); @@ -4430,7 +4416,7 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent, } // if ( hasData ) // try to get groups - for ( int ii = GetNodeGroupsTag(); ii <= GetVolumeGroupsTag(); ii++ ) { + for ( int ii = GetNodeGroupsTag(); ii <= Get0DElementsGroupsTag(); ii++ ) { char name_group[ 30 ]; if ( ii == GetNodeGroupsTag() ) strcpy( name_group, "Groups of Nodes" ); @@ -4440,6 +4426,8 @@ bool SMESH_Gen_i::Load( SALOMEDS::SComponent_ptr theComponent, strcpy( name_group, "Groups of Faces" ); else if ( ii == GetVolumeGroupsTag() ) strcpy( name_group, "Groups of Volumes" ); + else if ( ii == Get0DElementsGroupsTag() ) + strcpy( name_group, "Groups of 0D Elements" ); if ( aTopGroup->ExistInternalObject( name_group ) ) { aGroup = new HDFgroup( name_group, aTopGroup ); diff --git a/src/SMESH_I/SMESH_Gen_i.hxx b/src/SMESH_I/SMESH_Gen_i.hxx index bc999e3db..1087dc023 100644 --- a/src/SMESH_I/SMESH_Gen_i.hxx +++ b/src/SMESH_I/SMESH_Gen_i.hxx @@ -461,6 +461,7 @@ public: static long GetEdgeGroupsTag(); static long GetFaceGroupsTag(); static long GetVolumeGroupsTag(); + static long Get0DElementsGroupsTag(); // publishing methods SALOMEDS::SComponent_ptr PublishComponent(SALOMEDS::Study_ptr theStudy); diff --git a/src/SMESH_I/SMESH_Gen_i_1.cxx b/src/SMESH_I/SMESH_Gen_i_1.cxx index b19214c45..41095815c 100644 --- a/src/SMESH_I/SMESH_Gen_i_1.cxx +++ b/src/SMESH_I/SMESH_Gen_i_1.cxx @@ -136,6 +136,11 @@ long SMESH_Gen_i::GetVolumeGroupsTag() return SMESH::Tag_VolumeGroups; } +long SMESH_Gen_i::Get0DElementsGroupsTag() +{ + return SMESH::Tag_0DElementsGroups; +} + //============================================================================= /*! * SMESH_Gen_i::CanPublishInStudy diff --git a/src/SMESH_I/SMESH_Group_i.cxx b/src/SMESH_I/SMESH_Group_i.cxx index 6c495af8f..6312b7389 100644 --- a/src/SMESH_I/SMESH_Group_i.cxx +++ b/src/SMESH_I/SMESH_Group_i.cxx @@ -508,7 +508,7 @@ void SMESH_GroupBase_i::SetColorNumber(CORBA::Long color) if (aGroupDS) { aGroupDS->SetColorGroup(color); - TPythonDump()<<_this()<<".SetColorGroup( "<Extent(); else SMESH_Mesh_i::CollectMeshInfo( aGrpDS->GetElements(), aRes); + +// SMDS_ElemIteratorPtr it = aGrpDS->GetElements(); +// if ( it->more() ) +// { +// cout << "START" << endl; +// set< const SMDS_MeshElement* > nodes; +// const SMDS_MeshElement* e = it->next(); +// for ( int i = 0; i < 1000000; ++i) +// { +// SMDS_ElemIteratorPtr it = e->nodesIterator(); +// nodes.insert( e + i ); +// } +// cout << "END "<< nodes.size() << endl; +// } + return aRes._retn(); } diff --git a/src/StdMeshers/StdMeshers_Projection_2D.cxx b/src/StdMeshers/StdMeshers_Projection_2D.cxx index 5ed4e15df..152aa72bd 100644 --- a/src/StdMeshers/StdMeshers_Projection_2D.cxx +++ b/src/StdMeshers/StdMeshers_Projection_2D.cxx @@ -531,6 +531,11 @@ namespace { const SMDS_MeshNode* nullNode = 0; + // indices of nodes to create properly oriented faces + int tri1 = 1, tri2 = 2, quad1 = 1, quad3 = 3; + if ( trsf.Form() != gp_Identity ) + std::swap( tri1, tri2 ), std::swap( quad1, quad3 ); + SMESHDS_SubMesh* srcSubDS = srcMesh->GetMeshDS()->MeshElements( srcFace ); SMDS_ElemIteratorPtr elemIt = srcSubDS->GetElements(); vector< const SMDS_MeshNode* > tgtNodes; @@ -556,11 +561,11 @@ namespace { } tgtNodes[i] = srcN_tgtN->second; } - // create a new face (with reversed orientation) + // create a new face 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[tri1], tgtNodes[tri2]); break; + case 4: helper.AddFace(tgtNodes[0], tgtNodes[quad1], tgtNodes[2], tgtNodes[quad3]); break; } } return true; diff --git a/src/StdMeshers/StdMeshers_QuadToTriaAdaptor.cxx b/src/StdMeshers/StdMeshers_QuadToTriaAdaptor.cxx index 2a34a0022..db32a5f1a 100644 --- a/src/StdMeshers/StdMeshers_QuadToTriaAdaptor.cxx +++ b/src/StdMeshers/StdMeshers_QuadToTriaAdaptor.cxx @@ -188,7 +188,7 @@ namespace typedef SMDS_StdIterator< const SMDS_MeshElement*, SMDS_ElemIteratorPtr > TStdElemIterator; TStdElemIterator itEnd; - // shift of node index to get medium nodes corresponding to the 4 base nodes + // shift of node index to get medium nodes between the 4 base nodes and the apex const int base2MediumShift = 9; set::const_iterator nIt = commonApex.begin(); -- 2.39.2