From: eap Date: Thu, 8 Sep 2016 11:33:45 +0000 (+0300) Subject: Regression of SALOME_TESTS/Grids/smesh/2D_mesh_QuadranglePreference_00/A1 X-Git-Tag: V8_1_0rc1~6 X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=145e217ae6852460e3f461e22fe34cf6bc15fc36;p=modules%2Fsmesh.git Regression of SALOME_TESTS/Grids/smesh/2D_mesh_QuadranglePreference_00/A1 Avoid failure on an edge having a zero-length 3D curve --- diff --git a/src/SMESH/SMESH_Algo.cxx b/src/SMESH/SMESH_Algo.cxx index 84b4dace3..a6806c3d8 100644 --- a/src/SMESH/SMESH_Algo.cxx +++ b/src/SMESH/SMESH_Algo.cxx @@ -584,8 +584,10 @@ bool SMESH_Algo::IsStraight( const TopoDS_Edge & E, */ //================================================================================ -bool SMESH_Algo::isDegenerated( const TopoDS_Edge & E ) +bool SMESH_Algo::isDegenerated( const TopoDS_Edge & E, const bool checkLength ) { + if ( checkLength ) + return EdgeLength( E ) == 0; double f,l; TopLoc_Location loc; Handle(Geom_Curve) C = BRep_Tool::Curve( E, loc, f,l ); diff --git a/src/SMESH/SMESH_Algo.hxx b/src/SMESH/SMESH_Algo.hxx index cee45b12c..e51b2329c 100644 --- a/src/SMESH/SMESH_Algo.hxx +++ b/src/SMESH/SMESH_Algo.hxx @@ -363,7 +363,7 @@ public: /*! * \brief Return true if an edge has no 3D curve */ - static bool isDegenerated( const TopoDS_Edge & E ); + static bool isDegenerated( const TopoDS_Edge & E, const bool checkLength=false ); /*! * \brief Return the node built on a vertex diff --git a/src/StdMeshers/StdMeshers_Regular_1D.cxx b/src/StdMeshers/StdMeshers_Regular_1D.cxx index 1b2ba291f..8f4a10547 100644 --- a/src/StdMeshers/StdMeshers_Regular_1D.cxx +++ b/src/StdMeshers/StdMeshers_Regular_1D.cxx @@ -1120,15 +1120,14 @@ bool StdMeshers_Regular_1D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape & t ASSERT(!VFirst.IsNull()); ASSERT(!VLast.IsNull()); - const SMDS_MeshNode * idFirst = SMESH_Algo::VertexNode( VFirst, meshDS ); - const SMDS_MeshNode * idLast = SMESH_Algo::VertexNode( VLast, meshDS ); - if (!idFirst || !idLast) + const SMDS_MeshNode * nFirst = SMESH_Algo::VertexNode( VFirst, meshDS ); + const SMDS_MeshNode * nLast = SMESH_Algo::VertexNode( VLast, meshDS ); + if ( !nFirst || !nLast ) return error( COMPERR_BAD_INPUT_MESH, "No node on vertex"); // remove elements created by e.g. patern mapping (PAL21999) // CLEAN event is incorrectly ptopagated seemingly due to Propagation hyp // so TEMPORARY solution is to clean the submesh manually - //theMesh.GetSubMesh(theShape)->ComputeStateEngine( SMESH_subMesh::CLEAN ); if (SMESHDS_SubMesh * subMeshDS = meshDS->MeshElements(theShape)) { SMDS_ElemIteratorPtr ite = subMeshDS->GetElements(); @@ -1144,7 +1143,8 @@ bool StdMeshers_Regular_1D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape & t } } - if (!Curve.IsNull()) + double length = EdgeLength( E ); + if ( !Curve.IsNull() && length > 0 ) { list< double > params; bool reversed = false; @@ -1167,7 +1167,6 @@ bool StdMeshers_Regular_1D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape & t reversed = !reversed; BRepAdaptor_Curve C3d( E ); - double length = EdgeLength( E ); if ( ! computeInternalParameters( theMesh, C3d, length, f, l, params, reversed, true )) { return false; } @@ -1176,19 +1175,10 @@ bool StdMeshers_Regular_1D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape & t // edge extrema (indexes : 1 & NbPoints) already in SMDS (TopoDS_Vertex) // only internal nodes receive an edge position with param on curve - const SMDS_MeshNode * idPrev = idFirst; + const SMDS_MeshNode * nPrev = nFirst; double parPrev = f; double parLast = l; - /* NPAL18025 - if (reversed) { - idPrev = idLast; - idLast = idFirst; - idFirst = idPrev; - parPrev = l; - parLast = f; - } - */ for (list::iterator itU = params.begin(); itU != params.end(); itU++) { double param = *itU; gp_Pnt P = Curve->Value(param); @@ -1200,18 +1190,18 @@ bool StdMeshers_Regular_1D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape & t if(_quadraticMesh) { // create medium node double prm = ( parPrev + param )/2; - gp_Pnt PM = Curve->Value(prm); + gp_Pnt PM = Curve->Value(prm); SMDS_MeshNode * NM = meshDS->AddNode(PM.X(), PM.Y(), PM.Z()); meshDS->SetNodeOnEdge(NM, shapeID, prm); - SMDS_MeshEdge * edge = meshDS->AddEdge(idPrev, node, NM); + SMDS_MeshEdge * edge = meshDS->AddEdge(nPrev, node, NM); meshDS->SetMeshElementOnShape(edge, shapeID); } else { - SMDS_MeshEdge * edge = meshDS->AddEdge(idPrev, node); + SMDS_MeshEdge * edge = meshDS->AddEdge(nPrev, node); meshDS->SetMeshElementOnShape(edge, shapeID); } - idPrev = node; + nPrev = node; parPrev = param; } if(_quadraticMesh) { @@ -1219,11 +1209,11 @@ bool StdMeshers_Regular_1D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape & t gp_Pnt PM = Curve->Value(prm); SMDS_MeshNode * NM = meshDS->AddNode(PM.X(), PM.Y(), PM.Z()); meshDS->SetNodeOnEdge(NM, shapeID, prm); - SMDS_MeshEdge * edge = meshDS->AddEdge(idPrev, idLast, NM); + SMDS_MeshEdge * edge = meshDS->AddEdge(nPrev, nLast, NM); meshDS->SetMeshElementOnShape(edge, shapeID); } else { - SMDS_MeshEdge* edge = meshDS->AddEdge(idPrev, idLast); + SMDS_MeshEdge* edge = meshDS->AddEdge(nPrev, nLast); meshDS->SetMeshElementOnShape(edge, shapeID); } } @@ -1236,7 +1226,7 @@ bool StdMeshers_Regular_1D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape & t gp_Pnt P = BRep_Tool::Pnt(VFirst); - const SMDS_MeshNode * idPrev = idFirst; + const SMDS_MeshNode * nPrev = nFirst; for (int i = 2; i < NbPoints; i++) { double param = f + (i - 1) * du; SMDS_MeshNode * node = meshDS->AddNode(P.X(), P.Y(), P.Z()); @@ -1245,26 +1235,26 @@ bool StdMeshers_Regular_1D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape & t double prm = param - du/2.; SMDS_MeshNode * NM = meshDS->AddNode(P.X(), P.Y(), P.Z()); meshDS->SetNodeOnEdge(NM, shapeID, prm); - SMDS_MeshEdge * edge = meshDS->AddEdge(idPrev, node, NM); + SMDS_MeshEdge * edge = meshDS->AddEdge(nPrev, node, NM); meshDS->SetMeshElementOnShape(edge, shapeID); } else { - SMDS_MeshEdge * edge = meshDS->AddEdge(idPrev, node); + SMDS_MeshEdge * edge = meshDS->AddEdge(nPrev, node); meshDS->SetMeshElementOnShape(edge, shapeID); } meshDS->SetNodeOnEdge(node, shapeID, param); - idPrev = node; + nPrev = node; } if(_quadraticMesh) { // create medium node double prm = l - du/2.; SMDS_MeshNode * NM = meshDS->AddNode(P.X(), P.Y(), P.Z()); meshDS->SetNodeOnEdge(NM, shapeID, prm); - SMDS_MeshEdge * edge = meshDS->AddEdge(idPrev, idLast, NM); + SMDS_MeshEdge * edge = meshDS->AddEdge(nPrev, nLast, NM); meshDS->SetMeshElementOnShape(edge, shapeID); } else { - SMDS_MeshEdge * edge = meshDS->AddEdge(idPrev, idLast); + SMDS_MeshEdge * edge = meshDS->AddEdge(nPrev, nLast); meshDS->SetMeshElementOnShape(edge, shapeID); } } @@ -1306,11 +1296,11 @@ bool StdMeshers_Regular_1D::Evaluate(SMESH_Mesh & theMesh, std::vector aVec(SMDSEntity_Last,0); - if (!Curve.IsNull()) { + double length = EdgeLength( E ); + if ( !Curve.IsNull() && length > 0 ) + { list< double > params; - BRepAdaptor_Curve C3d( E ); - double length = EdgeLength( E ); if ( ! computeInternalParameters( theMesh, C3d, length, f, l, params, false, true )) { SMESH_subMesh * sm = theMesh.GetSubMesh(theShape); aResMap.insert(std::make_pair(sm,aVec)); @@ -1328,7 +1318,7 @@ bool StdMeshers_Regular_1D::Evaluate(SMESH_Mesh & theMesh, aVec[SMDSEntity_Node] = params.size(); aVec[SMDSEntity_Edge] = params.size() + 1; } - + } else { // Edge is a degenerated Edge : We put n = 5 points on the edge.