From: eap Date: Mon, 1 Jul 2019 10:44:54 +0000 (+0300) Subject: IPAL54585: Extrusion 3D algo fails with "OCC exception. Standard_NoSuchObject: NColle... X-Git-Tag: V9_4_0a1~26 X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=b718a7cc45afdc2f1e8d06862f1e043402d2ea19;p=modules%2Fsmesh.git IPAL54585: Extrusion 3D algo fails with "OCC exception. Standard_NoSuchObject: NCollection_DataMap::Find" error --- diff --git a/src/SMESH/SMESH_MesherHelper.cxx b/src/SMESH/SMESH_MesherHelper.cxx index d6cd15d3e..c30234a7e 100644 --- a/src/SMESH/SMESH_MesherHelper.cxx +++ b/src/SMESH/SMESH_MesherHelper.cxx @@ -151,8 +151,6 @@ bool SMESH_MesherHelper::IsQuadraticSubMesh(const TopoDS_Shape& aSh) // we can create quadratic elements only if all elements // created on sub-shapes of given shape are quadratic myCreateQuadratic = true; - mySeamShapeIds.clear(); - myDegenShapeIds.clear(); TopAbs_ShapeEnum subType( aSh.ShapeType()==TopAbs_FACE ? TopAbs_EDGE : TopAbs_FACE ); if ( aSh.ShapeType()==TopAbs_COMPOUND ) { @@ -741,7 +739,8 @@ gp_XY SMESH_MesherHelper::GetNodeUV(const TopoDS_Face& F, if ( !C2d.IsNull() ) { double u = ( V == IthVertex( 0, edge )) ? f : l; uv = C2d->Value( u ); - uvOK = true; + gp_Pnt p = GetSurface( F )->Value( uv ); + uvOK = ( p.Distance( BRep_Tool::Pnt( V )) < getFaceMaxTol( F )); break; } } diff --git a/src/SMESHUtils/SMESH_Delaunay.cxx b/src/SMESHUtils/SMESH_Delaunay.cxx index 8ae5f1761..8b1f252d6 100644 --- a/src/SMESHUtils/SMESH_Delaunay.cxx +++ b/src/SMESHUtils/SMESH_Delaunay.cxx @@ -40,7 +40,6 @@ * \param [in] boundaryNodes - vector of nodes of a wire * \param [in] face - the face * \param [in] faceID - the face ID - * \param [in] nbNodesToVisit - nb of non-marked nodes on the face */ //================================================================================ @@ -56,6 +55,8 @@ SMESH_Delaunay::SMESH_Delaunay(const std::vector< const UVPtStructVec* > & bound const int nbDiv = 100; const double uRange = surf.LastUParameter() - surf.FirstUParameter(); const double vRange = surf.LastVParameter() - surf.FirstVParameter(); + const double uFixed = surf.FirstUParameter() + 0.5 * uRange; + const double vFixed = surf.FirstVParameter() + 0.5 * vRange; const double dU = uRange / nbDiv; const double dV = vRange / nbDiv; double u = surf.FirstUParameter(), v = surf.FirstVParameter(); @@ -63,10 +64,10 @@ SMESH_Delaunay::SMESH_Delaunay(const std::vector< const UVPtStructVec* > & bound double lenU = 0, lenV = 0; for ( ; u < surf.LastUParameter(); u += dU, v += dV ) { - gp_Pnt p1U = surf.Value( u, surf.FirstVParameter() ); + gp_Pnt p1U = surf.Value( u, vFixed ); lenU += p1U.Distance( p0U ); p0U = p1U; - gp_Pnt p1V = surf.Value( surf.FirstUParameter(), v ); + gp_Pnt p1V = surf.Value( uFixed, v ); lenV += p1V.Distance( p0V ); p0V = p1V; } @@ -270,6 +271,8 @@ const BRepMesh_Triangle* SMESH_Delaunay::FindTriangle( const gp_XY& const BRepMesh_Triangle* SMESH_Delaunay::GetTriangleNear( int iBndNode ) { + if ( iBndNode >= _triaDS->NbNodes() ) + return 0; int nodeIDs[3]; int nbNbNodes = _bndNodes.size(); #if OCC_VERSION_LARGE <= 0x07030000 diff --git a/src/SMESHUtils/SMESH_Slot.cxx b/src/SMESHUtils/SMESH_Slot.cxx index f706f5bce..a11555ddd 100644 --- a/src/SMESHUtils/SMESH_Slot.cxx +++ b/src/SMESHUtils/SMESH_Slot.cxx @@ -127,6 +127,15 @@ namespace return 0; if ( myFreeEnds.empty() ) { + // remove degenerated cuts + // for ( size_t iC1 = 0; iC1 < myCuts.size(); ++iC1 ) + // if ( myCuts[ iC1 ][ 0 ].myNode == myCuts[ iC1 ][ 1 ].myNode ) + // { + // if ( iC1 < myCuts.size() - 1 ) + // myCuts[ iC1 ] = myCuts.back(); + // myCuts.pop_back(); + // } + int nbShared = 0; std::vector< bool > isSharedPnt( myCuts.size() * 2, false ); for ( size_t iC1 = 0; iC1 < myCuts.size() - 1; ++iC1 ) diff --git a/src/StdMeshers/StdMeshers_Quadrangle_2D.cxx b/src/StdMeshers/StdMeshers_Quadrangle_2D.cxx index 17702dd30..e41667306 100644 --- a/src/StdMeshers/StdMeshers_Quadrangle_2D.cxx +++ b/src/StdMeshers/StdMeshers_Quadrangle_2D.cxx @@ -4336,6 +4336,7 @@ void StdMeshers_Quadrangle_2D::smooth (FaceQuadStruct::Ptr quad) SMESH_TNodeXYZ a2( quad->UVPt( nbhoriz-1, nbvertic-1 ).node ); SMESH_TNodeXYZ a3( quad->UVPt( 0, nbvertic-1 ).node ); + // compute TFI for (int i = 1; i < nbhoriz-1; i++) { SMESH_TNodeXYZ p0( quad->UVPt( i, 0 ).node ); @@ -4347,13 +4348,39 @@ void StdMeshers_Quadrangle_2D::smooth (FaceQuadStruct::Ptr quad) UVPtStruct& uvp = quad->UVPt( i, j ); - gp_Pnt p = myHelper->calcTFI(uvp.x,uvp.y, a0,a1,a2,a3, p0,p1,p2,p3); + gp_Pnt pnew = myHelper->calcTFI(uvp.x,uvp.y, a0,a1,a2,a3, p0,p1,p2,p3); + meshDS->MoveNode( uvp.node, pnew.X(), pnew.Y(), pnew.Z() ); + } + } + // project to surface + double cellSize; + for (int i = 1; i < nbhoriz-1; i++) + { + for (int j = 1; j < nbvertic-1; j++) + { + UVPtStruct& uvp = quad->UVPt( i, j ); + SMESH_NodeXYZ p = uvp.node; + + cellSize = Max( p.SquareDistance( quad->UVPt( i+1, j ).node ), + p.SquareDistance( quad->UVPt( i-1, j ).node )); + cellSize = Max( p.SquareDistance( quad->UVPt( i, j+1 ).node ), cellSize ); + cellSize = Max( p.SquareDistance( quad->UVPt( i, j-1 ).node ), cellSize ); + gp_Pnt2d uv = surface->NextValueOfUV( uvp.UV(), p, 10*tol ); gp_Pnt pnew = surface->Value( uv ); - - meshDS->MoveNode( uvp.node, pnew.X(), pnew.Y(), pnew.Z() ); - uvp.u = uv.X(); - uvp.v = uv.Y(); + bool ok = ( pnew.SquareDistance( p ) < 2 * cellSize ); + if ( !ok ) + { + uv = surface->ValueOfUV( p, 10*tol ); + pnew = surface->Value( uv ); + ok = ( pnew.SquareDistance( p ) < 2 * cellSize ); + } + if ( ok ) + { + meshDS->MoveNode( uvp.node, pnew.X(), pnew.Y(), pnew.Z() ); + uvp.u = uv.X(); + uvp.v = uv.Y(); + } } } } diff --git a/src/StdMeshers/StdMeshers_RadialQuadrangle_1D2D.cxx b/src/StdMeshers/StdMeshers_RadialQuadrangle_1D2D.cxx index 8e183e37e..740eebaeb 100644 --- a/src/StdMeshers/StdMeshers_RadialQuadrangle_1D2D.cxx +++ b/src/StdMeshers/StdMeshers_RadialQuadrangle_1D2D.cxx @@ -226,12 +226,19 @@ namespace if ( nbWire > 2 || nbEdgesInWire.front() < 1 ) return 0; // remove degenerated EDGEs + TopTools_MapOfShape degenVV; list::iterator edge = edges.begin(); while ( edge != edges.end() ) if ( SMESH_Algo::isDegenerated( *edge )) + { + degenVV.Add( SMESH_MesherHelper::IthVertex( 0, *edge )); + degenVV.Add( SMESH_MesherHelper::IthVertex( 1, *edge )); edge = edges.erase( edge ); + } else + { ++edge; + } int nbEdges = edges.size(); // find VERTEXes between continues EDGEs @@ -327,9 +334,25 @@ namespace double len1 = (++l2i)->first; double len2 = (++l2i)->first; if ( len1 - len0 > len2 - len1 ) - deviation2sideInd.insert( make_pair( 0., len2sideInd.begin()->second )); + deviation2sideInd.insert( std::make_pair( 0., len2sideInd.begin()->second )); else - deviation2sideInd.insert( make_pair( 0., len2sideInd.rbegin()->second )); + deviation2sideInd.insert( std::make_pair( 0., len2sideInd.rbegin()->second )); + } + + double minDevi = deviation2sideInd.begin()->first; + int iMinCurv = deviation2sideInd.begin()->second; + if ( sides.size() == 3 && degenVV.Size() == 1 && + minDevi / sides[ iMinCurv ]->Length() > 1e-3 ) + { + // a triangle with curved sides and a degenerated EDGE (IPAL54585); + // use a side opposite to the degenerated EDGE as an elliptic one + for ( size_t iS = 0; iS < sides.size(); ++iS ) + if ( degenVV.Contains( sides[ iS ]->FirstVertex() )) + { + deviation2sideInd.clear(); + deviation2sideInd.insert( std::make_pair( 0.,( iS + 1 ) % sides.size() )); + break; + } } int iCirc = deviation2sideInd.rbegin()->second; @@ -994,6 +1017,7 @@ bool StdMeshers_RadialQuadrangle_1D2D::Compute(SMESH_Mesh& aMesh, quad->side[1] = linSide1; quad->side[2] = StdMeshers_FaceSide::New( circSide.get(), centerNode, ¢erUV ); quad->side[3] = linSide2; + quad->face = F; myQuadList.push_back( quad ); @@ -1004,6 +1028,12 @@ bool StdMeshers_RadialQuadrangle_1D2D::Compute(SMESH_Mesh& aMesh, else ok = StdMeshers_Quadrangle_2D::computeTriangles( aMesh, F, quad ); + if ( helper.HasDegeneratedEdges() ) + { + StdMeshers_Quadrangle_2D::myNeedSmooth = true; + StdMeshers_Quadrangle_2D::smooth( quad ); + } + StdMeshers_Quadrangle_2D::myHelper = 0; return ok;