From dd21629a8136615e35c190f5b271d2fffd0b913b Mon Sep 17 00:00:00 2001 From: vsr Date: Fri, 26 Nov 2010 15:48:22 +0000 Subject: [PATCH] Merge from V5_1_main 26/11/2010 --- doc/docutils/conf.py | 4 +- src/SMESH/SMESH_MesherHelper.cxx | 140 +++++++++++++++++++++---------- src/SMESH/SMESH_MesherHelper.hxx | 5 +- 3 files changed, 102 insertions(+), 47 deletions(-) diff --git a/doc/docutils/conf.py b/doc/docutils/conf.py index 84a74a570..aebd4b163 100644 --- a/doc/docutils/conf.py +++ b/doc/docutils/conf.py @@ -54,9 +54,9 @@ copyright = '2010 EDF R&D' # built documents. # # The short X.Y version. -version = '5.1.4' +version = '6.2.0' # The full version, including alpha/beta/rc tags. -release = '5.1.4' +release = '6.2.0' # The language for content autogenerated by Sphinx. Refer to documentation # for a list of supported languages. diff --git a/src/SMESH/SMESH_MesherHelper.cxx b/src/SMESH/SMESH_MesherHelper.cxx index bb96f0352..c3e284a47 100644 --- a/src/SMESH/SMESH_MesherHelper.cxx +++ b/src/SMESH/SMESH_MesherHelper.cxx @@ -315,6 +315,31 @@ void SMESH_MesherHelper::AddTLinkNode(const SMDS_MeshNode* n1, myTLinkNodeMap.insert( make_pair(link,n12)); } +//================================================================================ +/*! + * \brief Return true if position of nodes on the shape hasn't yet been checked or + * the positions proved to be invalid + */ +//================================================================================ + +bool SMESH_MesherHelper::toCheckPosOnShape(int shapeID ) const +{ + map< int,bool >::const_iterator id_ok = myNodePosShapesValidity.find( shapeID ); + return ( id_ok == myNodePosShapesValidity.end() || !id_ok->second ); +} + +//================================================================================ +/*! + * \brief Set validity of positions of nodes on the shape. + * Once set, validity is not changed + */ +//================================================================================ + +void SMESH_MesherHelper::setPosOnShapeValidity(int shapeID, bool ok ) const +{ + ((SMESH_MesherHelper*)this)->myNodePosShapesValidity.insert( make_pair( shapeID, ok)); +} + //======================================================================= //function : GetUVOnSeam //purpose : Select UV on either of 2 pcurves of a seam edge, closest to the given UV @@ -477,7 +502,8 @@ bool SMESH_MesherHelper::CheckNodeUV(const TopoDS_Face& F, const double tol, const bool force) const { - if ( force || !myOkNodePosShapes.count( n->GetPosition()->GetShapeId() )) + int shapeID = n->GetPosition()->GetShapeId(); + if ( force || toCheckPosOnShape( shapeID )) { // check that uv is correct TopLoc_Location loc; @@ -488,6 +514,7 @@ bool SMESH_MesherHelper::CheckNodeUV(const TopoDS_Face& F, Precision::IsInfinite( uv.Y() ) || nodePnt.Distance( surface->Value( uv.X(), uv.Y() )) > tol ) { + setPosOnShapeValidity( shapeID, false ); // uv incorrect, project the node to surface GeomAPI_ProjectPointOnSurf& projector = GetProjector( F, loc, tol ); projector.Perform( nodePnt ); @@ -504,10 +531,14 @@ bool SMESH_MesherHelper::CheckNodeUV(const TopoDS_Face& F, MESSAGE( "SMESH_MesherHelper::CheckNodeUV(), invalid projection" ); return false; } + // store the fixed UV on the face + if ( myShape.IsSame(F) && shapeID == myShapeID ) + const_cast(n)->SetPosition + ( SMDS_PositionPtr( new SMDS_FacePosition( shapeID, U, V ))); } else if ( uv.Modulus() > numeric_limits::min() ) { - ((SMESH_MesherHelper*) this)->myOkNodePosShapes.insert( n->GetPosition()->GetShapeId() ); + setPosOnShapeValidity( shapeID, true ); } } return true; @@ -657,7 +688,8 @@ bool SMESH_MesherHelper::CheckNodeU(const TopoDS_Edge& E, const bool force, double* distance) const { - if ( force || !myOkNodePosShapes.count( n->GetPosition()->GetShapeId() )) + int shapeID = n->GetPosition()->GetShapeId(); + if ( force || toCheckPosOnShape( shapeID )) { // check that u is correct TopLoc_Location loc; double f,l; @@ -678,6 +710,7 @@ bool SMESH_MesherHelper::CheckNodeU(const TopoDS_Edge& E, if ( distance ) *distance = dist; if ( dist > tol ) { + setPosOnShapeValidity( shapeID, false ); // u incorrect, project the node to the curve int edgeID = GetMeshDS()->ShapeToIndex( E ); TID2ProjectorOnCurve& i2proj = const_cast< TID2ProjectorOnCurve&>( myEdge2Projector ); @@ -704,11 +737,14 @@ bool SMESH_MesherHelper::CheckNodeU(const TopoDS_Edge& E, MESSAGE( "SMESH_MesherHelper::CheckNodeU(), invalid projection" ); return false; } - //u = double( U ); + // store the fixed U on the edge + if ( myShape.IsSame(E) && shapeID == myShapeID ) + const_cast(n)->SetPosition + ( SMDS_PositionPtr( new SMDS_EdgePosition( shapeID, U ))); } else if ( fabs( u ) > numeric_limits::min() ) { - ((SMESH_MesherHelper*) this)->myOkNodePosShapes.insert( n->GetPosition()->GetShapeId() ); + setPosOnShapeValidity( shapeID, true ); } if (( u < f-tol || u > l+tol ) && force ) { @@ -751,6 +787,10 @@ const SMDS_MeshNode* SMESH_MesherHelper::GetMediumNode(const SMDS_MeshNode* n1, SMDS_MeshNode* n12; SMESHDS_Mesh* meshDS = GetMeshDS(); + if ( IsSeamShape( n1->GetPosition()->GetShapeId() )) + // to get a correct UV of a node on seam, the second node must have checked UV + std::swap( n1, n2 ); + // get type of shape for the new medium node int faceID = -1, edgeID = -1; const SMDS_PositionPtr Pos1 = n1->GetPosition(); @@ -1665,9 +1705,9 @@ namespace { // Structures used by FixQuadraticElements() node2()->GetID() < other.node2()->GetID() : node1()->GetID() < other.node1()->GetID()); } - struct PtrComparator { - bool operator() (const QLink* l1, const QLink* l2 ) const { return *l1 < *l2; } - }; +// struct PtrComparator { +// bool operator() (const QLink* l1, const QLink* l2 ) const { return *l1 < *l2; } +// }; }; // --------------------------------------------------------- /*! @@ -1714,7 +1754,7 @@ namespace { // Structures used by FixQuadraticElements() /*! * \brief Face shared by two volumes and bound by QLinks */ - struct QFace: public TIDSortedElemSet + struct QFace: public TIDSortedNodeSet { mutable const SMDS_MeshElement* _volumes[2]; mutable vector< const QLink* > _sides; @@ -1753,6 +1793,8 @@ namespace { // Structures used by FixQuadraticElements() bool Contains( const SMDS_MeshNode* node ) const { return count(node); } + bool IsSpoiled(const QLink* bentLink ) const; + TLinkInSet GetBoundaryLink( const TLinkSet& links, const TChainLink& avoidLink, TLinkInSet * notBoundaryLink = 0, @@ -1797,7 +1839,7 @@ namespace { // Structures used by FixQuadraticElements() ostream& operator << (ostream& out, const QFace& f) { out <<"QFace nodes: "/*<< &f << " "*/; - for ( TIDSortedElemSet::const_iterator n = f.begin(); n != f.end(); ++n ) + for ( TIDSortedNodeSet::const_iterator n = f.begin(); n != f.end(); ++n ) out << (*n)->GetID() << " "; out << " \tvolumes: " << (f._volumes[0] ? f._volumes[0]->GetID() : 0) << " " @@ -2139,6 +2181,37 @@ namespace { // Structures used by FixQuadraticElements() return fullLen; } + //================================================================================ + /*! + * \brief Checks if the face is distorted due to bentLink + */ + //================================================================================ + + bool QFace::IsSpoiled(const QLink* bentLink ) const + { + // code is valid for convex faces only + gp_XYZ gc(0,0,0); + for ( TIDSortedNodeSet::const_iterator n = begin(); n!=end(); ++n) + gc += XYZ( *n ) / size(); + for (unsigned i = 0; i < _sides.size(); ++i ) + { + if ( _sides[i] == bentLink ) continue; + gp_Vec linkNorm = _normal ^ gp_Vec( XYZ(_sides[i]->node1()), XYZ(_sides[i]->node2())); + gp_Vec vecOut( gc, _sides[i]->MiddlePnt() ); + if ( linkNorm * vecOut < 0 ) + linkNorm.Reverse(); + double mag2 = linkNorm.SquareMagnitude(); + if ( mag2 > numeric_limits::min() ) + linkNorm /= sqrt( mag2 ); + gp_Vec vecBent ( _sides[i]->MiddlePnt(), bentLink->MediumPnt()); + gp_Vec vecStraight( _sides[i]->MiddlePnt(), bentLink->MiddlePnt()); + if ( vecBent * linkNorm > -0.1*vecStraight.Magnitude() ) + return true; + } + return false; + + } + //================================================================================ /*! * \brief Find pairs of continues faces @@ -2284,41 +2357,20 @@ namespace { // Structures used by FixQuadraticElements() TLinkSet linkSet( allLinks.begin(), allLinks.end()); TLinkInSet linkIt = linkSet.begin(), linksEnd = linkSet.end(); - // move in 2d if we are on geom face -// TopoDS_Face face; -// TopLoc_Location loc; -// SMESH_MesherHelper faceHelper( *helper.GetMesh()); -// while ( linkIt->IsBoundary()) ++linkIt; -// if ( linkIt == linksEnd ) return; -// if ( (*linkIt)->MediumPos() == SMDS_TOP_FACE ) { -// bool checkPos = true; -// TopoDS_Shape f = helper.GetSubShapeByNode( (*linkIt)->_mediumNode, helper.GetMeshDS() ); -// if ( !f.IsNull() && f.ShapeType() == TopAbs_FACE ) { -// face = TopoDS::Face( f ); -// helper.GetNodeUV( face, (*linkIt)->_mediumNode, 0, &checkPos); -// if (checkPos) -// face.Nullify(); -// else -// faceHelper.SetSubShape( face ); -// } -// } for ( linkIt = linkSet.begin(); linkIt != linksEnd; ++linkIt) { if ( linkIt->IsBoundary() && !(*linkIt)->IsStraight() && linkIt->_qfaces[0]) { -// if ( !face.IsNull() ) { -// const SMDS_MeshNode* inFaceNode = -// faceHelper.GetNodeUVneedInFaceNode() ? linkIt->_qfaces[0]->GetNodeInFace() : 0; -// gp_XY uvm = helper.GetNodeUV( face, (*linkIt)->_mediumNode, inFaceNode ); -// gp_XY uv1 = helper.GetNodeUV( face, (*linkIt)->node1(), inFaceNode); -// gp_XY uv2 = helper.GetNodeUV( face, (*linkIt)->node2(), inFaceNode); -// gp_XY uvMove = uvm - helper.GetMiddleUV( BRep_Tool::Surface(face,loc), uv1, uv2); -// gp_Vec move( uvMove.X(), uvMove.Y(), 0 ); -// linkIt->_qfaces[0]->MoveByBoundary( *linkIt, move, linkSet, &faceHelper ); -// } -// else { - linkIt->_qfaces[0]->MoveByBoundary( *linkIt, (*linkIt)->_nodeMove, linkSet ); - //} + // move iff a boundary link is bent towards inside of a face (issue 0021084) + const QFace* face = linkIt->_qfaces[0]; + gp_XYZ pIn = ( face->_sides[0]->MiddlePnt() + + face->_sides[1]->MiddlePnt() + + face->_sides[2]->MiddlePnt() ) / 3.; + gp_XYZ insideDir( pIn - (*linkIt)->MiddlePnt()); + bool linkBentInside = ((*linkIt)->_nodeMove.Dot( insideDir ) > 0 ); + //if ( face->IsSpoiled( linkIt->_qlink )) + if ( linkBentInside ) + face->MoveByBoundary( *linkIt, (*linkIt)->_nodeMove, linkSet ); } } } @@ -2589,7 +2641,7 @@ void SMESH_MesherHelper::FixQuadraticElements(bool volumeOnly) bool isCurved = false; //bool hasRectFaces = false; - set nbElemNodeSet; + //set nbElemNodeSet; if ( elemType == SMDSAbs_Volume ) { @@ -2602,7 +2654,7 @@ void SMESH_MesherHelper::FixQuadraticElements(bool volumeOnly) for ( int iF = 0; iF < volTool.NbFaces(); ++iF ) // loop on faces of volume { int nbN = volTool.NbFaceNodes( iF ); - nbElemNodeSet.insert( nbN ); + //nbElemNodeSet.insert( nbN ); const SMDS_MeshNode** faceNodes = volTool.GetFaceNodes( iF ); vector< const QLink* > faceLinks( nbN/2 ); for ( int iN = 0; iN < nbN; iN += 2 ) // loop on links of a face @@ -2644,7 +2696,7 @@ void SMESH_MesherHelper::FixQuadraticElements(bool volumeOnly) const SMDS_MeshElement* face = elemIt->next(); if ( !face->IsQuadratic() ) continue; - nbElemNodeSet.insert( face->NbNodes() ); + //nbElemNodeSet.insert( face->NbNodes() ); int nbN = face->NbNodes()/2; vector< const QLink* > faceLinks( nbN ); for ( int iN = 0; iN < nbN; ++iN ) // loop on links of a face diff --git a/src/SMESH/SMESH_MesherHelper.hxx b/src/SMESH/SMESH_MesherHelper.hxx index 2f89ce789..d904f95de 100644 --- a/src/SMESH/SMESH_MesherHelper.hxx +++ b/src/SMESH/SMESH_MesherHelper.hxx @@ -501,7 +501,10 @@ protected: // to create quadratic elements bool myCreateQuadratic; bool mySetElemOnShape; - std::set< int > myOkNodePosShapes; + + std::map< int,bool > myNodePosShapesValidity; + bool toCheckPosOnShape(int shapeID ) const; + void setPosOnShapeValidity(int shapeID, bool ok ) const; };