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PAL12886 (mesh 3D does not success but the 2D with Quadranle Preference seems correct)

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fix for the bug case
This commit is contained in:
eap 2007-02-20 07:18:30 +00:00
parent b9d0d6c67b
commit fccd8b61f0
1 changed files with 44 additions and 10 deletions
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54
src/StdMeshers/StdMeshers_Prism_3D.cxx
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@ -700,7 +700,7 @@ bool StdMeshers_PrismAsBlock::Init(SMESH_MesherHelper* helper,
mySide = new TSideFace( sideFaces, params );
myHelper = helper;
SMESHDS_Mesh* meshDS = myHelper->GetMesh()->GetMeshDS();
SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
SMESH_Block::init();
myShapeIDMap.Clear();
@ -722,7 +722,8 @@ bool StdMeshers_PrismAsBlock::Init(SMESH_MesherHelper* helper,
//
SMESH_subMesh* mainSubMesh = myHelper->GetMesh()->GetSubMeshContaining( shape3D );
if ( !mainSubMesh ) RETURN_BAD_RESULT("Null submesh of shape3D");
//
// analyse face submeshes
const map< int, SMESH_subMesh * >& subSM = mainSubMesh->DependsOn();
map< int, SMESH_subMesh * >::const_iterator i_subSM = subSM.begin();
for ( ; i_subSM != subSM.end(); ++i_subSM )
@ -734,14 +735,18 @@ bool StdMeshers_PrismAsBlock::Init(SMESH_MesherHelper* helper,
nbFaces++;
// is quadrangle face?
if ( TAssocTool::Count( face, TopAbs_EDGE, 0 ) != 4 ||
TAssocTool::Count( face, TopAbs_WIRE, 0 ) != 1 )
list< TopoDS_Edge > orderedEdges;
list< int > nbEdgesInWires;
TopoDS_Vertex V000;
int nbWires = GetOrderedEdges( TopoDS::Face( face ),
V000, orderedEdges, nbEdgesInWires );
if ( nbWires != 1 || nbEdgesInWires.front() != 4 )
notQuadGeomSubMesh.push_back( sm );
// count not quadrangle mesh elements
// look for not quadrangle mesh elements
if ( SMESHDS_SubMesh* smDS = sm->GetSubMeshDS() ) {
SMDS_ElemIteratorPtr eIt = smDS->GetElements();
bool hasNotQuad = false;
SMDS_ElemIteratorPtr eIt = smDS->GetElements();
while ( eIt->more() && !hasNotQuad ) {
const SMDS_MeshElement* elem = eIt->next();
if ( elem->GetType() == SMDSAbs_Face ) {
@ -757,6 +762,27 @@ bool StdMeshers_PrismAsBlock::Init(SMESH_MesherHelper* helper,
else {
RETURN_BAD_RESULT("not meshed face");
}
// check if a quadrangle face is meshed with a quadranglar grid
if ( notQuadGeomSubMesh.back() != sm &&
notQuadElemSubMesh.back() != sm )
{
// count nb edges on face sides
vector< int > nbEdges;
nbEdges.reserve( nbEdgesInWires.front() );
for ( list< TopoDS_Edge >::iterator edge = orderedEdges.begin();
edge != orderedEdges.end(); ++edge )
{
if ( SMESHDS_SubMesh* smDS = meshDS->MeshElements( *edge ))
nbEdges.push_back ( smDS->NbElements() );
else
nbEdges.push_back ( 0 );
}
int nbQuads = sm->GetSubMeshDS()->NbElements();
if ( nbEdges[0] * nbEdges[1] != nbQuads ||
nbEdges[0] != nbEdges[2] ||
nbEdges[1] != nbEdges[3] )
notQuadElemSubMesh.push_back( sm );
}
}
// ----------------------------------------------------------------------
@ -821,9 +847,17 @@ bool StdMeshers_PrismAsBlock::Init(SMESH_MesherHelper* helper,
const TopoDS_Shape & ancestor = ancestIt.Value();
if ( ancestor.ShapeType() == TopAbs_EDGE && !edgeMap.FindIndex( ancestor ))
{
Vtop = TopExp::LastVertex( TopoDS::Edge( ancestor ));
if ( Vbot.IsSame ( Vtop ))
Vtop = TopExp::FirstVertex( TopoDS::Edge( ancestor ));
TopoDS_Vertex V1, V2;
TopExp::Vertices( TopoDS::Edge( ancestor ), V1, V2);
if ( Vbot.IsSame ( V1 )) Vtop = V2;
else if ( Vbot.IsSame ( V2 )) Vtop = V1;
// check that Vtop belongs to shape3D
TopExp_Explorer exp( shape3D, TopAbs_VERTEX );
for ( ; exp.More(); exp.Next() )
if ( Vtop.IsSame( exp.Current() ))
break;
if ( !exp.More() )
Vtop.Nullify();
}
}
}
@ -1599,7 +1633,7 @@ TopoDS_Edge StdMeshers_PrismAsBlock::TSideFace::GetEdge(const int iEdge) const
}
default:;
}
if ( !edge.IsNull() || edge.ShapeType() == TopAbs_EDGE )
if ( !edge.IsNull() && edge.ShapeType() == TopAbs_EDGE )
return TopoDS::Edge( edge );
// find edge by 2 vertices