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23278: [EDF] Mesh computation fails for cylinder or sphere with projection algorythme

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This commit is contained in:
eap 2016-05-16 15:37:57 +03:00
parent 54644afede
commit d0d20593a7
1 changed files with 49 additions and 2 deletions
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51
src/StdMeshers/StdMeshers_Projection_2D.cxx
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@ -1147,6 +1147,51 @@ namespace {
return true;
}
//=======================================================================
/*
* Set initial association of VERTEXes for the case of projection
* from a quadrangle FACE to a closed FACE, where opposite src EDGEs
* have different nb of segments
*/
//=======================================================================
void initAssoc4Quad2Closed(const TopoDS_Shape& tgtFace,
SMESH_MesherHelper& tgtHelper,
const TopoDS_Shape& srcFace,
SMESH_Mesh* srcMesh,
TAssocTool::TShapeShapeMap & assocMap)
{
if ( !tgtHelper.HasRealSeam() )
return; // no seam edge
list< TopoDS_Edge > tgtEdges, srcEdges;
list< int > tgtNbEW, srcNbEW;
int tgtNbW = SMESH_Block::GetOrderedEdges( TopoDS::Face( tgtFace ), tgtEdges, tgtNbEW );
int srcNbW = SMESH_Block::GetOrderedEdges( TopoDS::Face( srcFace ), srcEdges, srcNbEW );
if ( tgtNbW != 1 || srcNbW != 1 ||
tgtNbEW.front() != 4 || srcNbEW.front() != 4 )
return; // not quads
int srcNbSeg[4];
list< TopoDS_Edge >::iterator edgeS = srcEdges.begin(), edgeT = tgtEdges.begin();
for ( int i = 0; edgeS != srcEdges.end(); ++i, ++edgeS )
if ( SMESHDS_SubMesh* sm = srcMesh->GetMeshDS()->MeshElements( *edgeS ))
srcNbSeg[ i ] = sm->NbNodes();
else
return; // not meshed
if ( srcNbSeg[0] == srcNbSeg[2] && srcNbSeg[1] == srcNbSeg[3] )
return; // same nb segments
if ( srcNbSeg[0] != srcNbSeg[2] && srcNbSeg[1] != srcNbSeg[3] )
return; // all different nb segments
edgeS = srcEdges.begin();
if ( srcNbSeg[0] != srcNbSeg[2] )
++edgeS;
TAssocTool::InsertAssociation( tgtHelper.IthVertex( 0,*edgeT ),
tgtHelper.IthVertex( 0,*edgeS ), assocMap );
TAssocTool::InsertAssociation( tgtHelper.IthVertex( 1,*edgeT ),
tgtHelper.IthVertex( 1,*edgeS ), assocMap );
}
} // namespace
@ -1177,8 +1222,12 @@ bool StdMeshers_Projection_2D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape&
TopoDS_Face tgtFace = TopoDS::Face( theShape.Oriented(TopAbs_FORWARD));
TopoDS_Shape srcShape = _sourceHypo->GetSourceFace().Oriented(TopAbs_FORWARD);
helper.SetSubShape( tgtFace );
TAssocTool::TShapeShapeMap shape2ShapeMap;
TAssocTool::InitVertexAssociation( _sourceHypo, shape2ShapeMap );
if ( shape2ShapeMap.IsEmpty() )
initAssoc4Quad2Closed( tgtFace, helper, srcShape, srcMesh, shape2ShapeMap );
if ( !TAssocTool::FindSubShapeAssociation( tgtFace, tgtMesh, srcShape, srcMesh,
shape2ShapeMap) ||
!shape2ShapeMap.IsBound( tgtFace ))
@ -1265,8 +1314,6 @@ bool StdMeshers_Projection_2D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape&
// shape2ShapeMap, _src2tgtNodes, is1DComputed);
}
helper.SetSubShape( tgtFace );
// it will remove mesh built on edges and vertices in failure case
MeshCleaner cleaner( tgtSubMesh );