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bos #20244 [CEA 20227] OCCT SIGSEGV - Cutting of quadrangles

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This commit is contained in:
eap 2020-10-22 11:33:25 +03:00
parent d76c0e6e5e
commit 76b3528b3f
2 changed files with 22 additions and 6 deletions
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26
src/SMESH/SMESH_MeshEditor.cxx
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@ -1504,9 +1504,12 @@ void SMESH_MeshEditor::QuadTo4Tri (TIDSortedElemSet & theElems)
SMESH_MesherHelper helper( *GetMesh() );
helper.SetElementsOnShape( true );
SMDS_ElemIteratorPtr faceIt;
if ( theElems.empty() ) faceIt = GetMeshDS()->elementsIterator(SMDSAbs_Face);
else faceIt = SMESHUtils::elemSetIterator( theElems );
// get standalone groups of faces
vector< SMDS_MeshGroup* > allFaceGroups, faceGroups;
for ( SMESHDS_GroupBase* grBase : GetMeshDS()->GetGroups() )
if ( SMESHDS_Group* group = dynamic_cast<SMESHDS_Group*>( grBase ))
if ( group->GetType() == SMDSAbs_Face && !group->IsEmpty() )
allFaceGroups.push_back( & group->SMDSGroup() );
bool checkUV;
gp_XY uv [9]; uv[8] = gp_XY(0,0);
@ -1517,6 +1520,10 @@ void SMESH_MeshEditor::QuadTo4Tri (TIDSortedElemSet & theElems)
Handle(Geom_Surface) surface;
TopLoc_Location loc;
SMDS_ElemIteratorPtr faceIt;
if ( theElems.empty() ) faceIt = GetMeshDS()->elementsIterator(SMDSAbs_Face);
else faceIt = SMESHUtils::elemSetIterator( theElems );
while ( faceIt->more() )
{
const SMDS_MeshElement* quad = faceIt->next();
@ -1593,13 +1600,19 @@ void SMESH_MeshEditor::QuadTo4Tri (TIDSortedElemSet & theElems)
myLastCreatedNodes.push_back( nCentral );
}
// create 4 triangles
helper.SetIsQuadratic ( nodes.size() > 4 );
helper.SetIsBiQuadratic( nodes.size() == 9 );
if ( helper.GetIsQuadratic() )
helper.AddTLinks( static_cast< const SMDS_MeshFace*>( quad ));
// select groups to update
faceGroups.clear();
for ( SMDS_MeshGroup* group : allFaceGroups )
if ( group->Remove( quad ))
faceGroups.push_back( group );
// create 4 triangles
GetMeshDS()->RemoveFreeElement( quad, subMeshDS, /*fromGroups=*/false );
for ( int i = 0; i < 4; ++i )
@ -1607,8 +1620,9 @@ void SMESH_MeshEditor::QuadTo4Tri (TIDSortedElemSet & theElems)
SMDS_MeshElement* tria = helper.AddFace( nodes[ i ],
nodes[(i+1)%4],
nCentral );
ReplaceElemInGroups( tria, quad, GetMeshDS() );
myLastCreatedElems.push_back( tria );
for ( SMDS_MeshGroup* group : faceGroups )
group->Add( tria );
}
}
}

2
src/SMESH_I/SMESH_MeshEditor_i.cxx
View File

@ -1966,6 +1966,8 @@ void SMESH_MeshEditor_i::QuadTo4Tri (SMESH::SMESH_IDSource_ptr theObject)
getEditor().QuadTo4Tri( faces );
TPythonDump() << this << ".QuadTo4Tri( " << theObject << " )";
declareMeshModified( /*isReComputeSafe=*/false );
SMESH_CATCH( SMESH::throwCorbaException );
}