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0021893: EDF 2133 SMESH : Improvement of 3D extrusion algorithm

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1) fix GetLayersTransformation(): use EDGEs in a right order
   2) Find source FACE by a local 1D hyps
This commit is contained in:
eap 2013-02-04 14:25:07 +00:00
parent 5b40fe7dff
commit 6e5ef9a043
1 changed files with 57 additions and 51 deletions
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48
src/StdMeshers/StdMeshers_Prism_3D.cxx
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@ -502,13 +502,13 @@ bool StdMeshers_Prism_3D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape& theSh
{
TopoDS_Face face = meshedFaces.front();
meshedFaces.pop_front();
solidIt.Initialize( faceToSolids.FindFromKey( face ));
for ( ; solidIt.More(); solidIt.Next() )
TopTools_ListOfShape& solidList = faceToSolids.ChangeFromKey( face );
while ( !solidList.IsEmpty() )
{
TopoDS_Shape solid = solidList.First();
solidList.RemoveFirst();
if ( meshedSolids.Add( solid ))
{
const TopoDS_Shape& solid = solidIt.Value();
if ( !meshedSolids.Add( solid ))
continue; // already computed prism
prism.Clear();
prism.myBottom = face;
if ( !initPrism( prism, solid ) ||
@ -519,9 +519,12 @@ bool StdMeshers_Prism_3D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape& theSh
meshedPrism.push_back( prism );
}
}
}
if ( meshedSolids.Extent() == nbSolids )
break;
// below in the loop we try to find source FACEs somehow
// project mesh from source FACEs of computed prisms to
// prisms sharing wall FACEs
list< Prism_3D::TPrismTopo >::iterator prismIt = meshedPrism.begin();
@ -533,13 +536,15 @@ bool StdMeshers_Prism_3D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape& theSh
for ( ; wQuad != prismIt->myWallQuads[iW].end(); ++ wQuad )
{
const TopoDS_Face& wFace = (*wQuad)->face;
solidIt.Initialize( faceToSolids.FindFromKey( wFace ));
for ( ; solidIt.More(); solidIt.Next() )
TopTools_ListOfShape& solidList = faceToSolids.ChangeFromKey( wFace );
solidIt.Initialize( solidList );
while ( solidIt.More() )
{
const TopoDS_Shape& solid = solidIt.Value();
if ( meshedSolids.Contains( solid ))
if ( meshedSolids.Contains( solid )) {
solidList.Remove( solidIt );
continue; // already computed prism
}
// find a source FACE of the SOLID: it's a FACE sharing a bottom EDGE with wFace
const TopoDS_Edge& wEdge = (*wQuad)->side[ QUAD_TOP_SIDE ]->Edge(0);
PShapeIteratorPtr faceIt = myHelper->GetAncestors( wEdge, *myHelper->GetMesh(),
@ -567,6 +572,10 @@ bool StdMeshers_Prism_3D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape& theSh
}
mySetErrorToSM = true;
InitComputeError();
if ( meshedSolids.Contains( solid ))
solidList.Remove( solidIt );
else
solidIt.Next();
}
}
}
@ -576,9 +585,11 @@ bool StdMeshers_Prism_3D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape& theSh
// find FACEs with local 1D hyps, which has to be computed by now,
// or at least any computed FACEs
for ( int iF = 1; iF < faceToSolids.Extent(); ++iF )
for ( int iF = 1; ( meshedFaces.empty() && iF < faceToSolids.Extent() ); ++iF )
{
const TopoDS_Face& face = TopoDS::Face( faceToSolids.FindKey( iF ));
const TopTools_ListOfShape& solidList = faceToSolids.FindFromKey( face );
if ( solidList.IsEmpty() ) continue;
SMESH_subMesh* faceSM = theMesh.GetSubMesh( face );
if ( !faceSM->IsEmpty() )
{
@ -599,8 +610,6 @@ bool StdMeshers_Prism_3D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape& theSh
faceSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
}
}
if ( !meshedFaces.empty() )
break;
}
@ -847,7 +856,7 @@ bool StdMeshers_Prism_3D::compute(const Prism_3D::TPrismTopo& thePrism)
// try to use transformation (issue 0020680)
vector<gp_Trsf> trsf;
if ( myBlock.GetLayersTransformation(trsf))
if ( myBlock.GetLayersTransformation( trsf, thePrism ))
{
// loop on nodes inside the bottom face
TNode2ColumnMap::iterator bot_column = myBotToColumnMap.begin();
@ -2371,7 +2380,8 @@ const TNodeColumn* StdMeshers_PrismAsBlock::GetNodeColumn(const SMDS_MeshNode* n
// from bottom to top.
//=======================================================================
bool StdMeshers_PrismAsBlock::GetLayersTransformation(vector<gp_Trsf> & trsf) const
bool StdMeshers_PrismAsBlock::GetLayersTransformation(vector<gp_Trsf> & trsf,
const Prism_3D::TPrismTopo& prism) const
{
const int zSize = VerticalSize();
if ( zSize < 3 ) return true;
@ -2381,13 +2391,9 @@ bool StdMeshers_PrismAsBlock::GetLayersTransformation(vector<gp_Trsf> & trsf) co
vector< const TNodeColumn* > columns;
{
const TopoDS_Shape& baseFace = Shape(ID_BOT_FACE);
list< TopoDS_Edge > orderedEdges;
list< int > nbEdgesInWires;
GetOrderedEdges( TopoDS::Face( baseFace ), orderedEdges, nbEdgesInWires );
bool isReverse;
list< TopoDS_Edge >::iterator edgeIt = orderedEdges.begin();
for ( int iE = 0; iE < nbEdgesInWires.front(); ++iE, ++edgeIt )
list< TopoDS_Edge >::const_iterator edgeIt = prism.myBottomEdges.begin();
for ( int iE = 0; iE < prism.myNbEdgesInWires.front(); ++iE, ++edgeIt )
{
if ( BRep_Tool::Degenerated( *edgeIt )) continue;
const TParam2ColumnMap* u2colMap =