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0030149: BRepMesh_Delaun: free triangle is left in the mesh after cleanup of auxiliary items

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Remove free triangles connected to triangles over nodes of super triangle.
Modification of improved test case.
This commit is contained in:
oan
2019-03-06 14:29:57 +03:00
committed by apn
parent bf5f0ca20a
commit 060fc60338
3 changed files with 49 additions and 3 deletions
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24
src/BRepMesh/BRepMesh_Delaun.cxx
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@@ -682,7 +682,7 @@ void BRepMesh_Delaun::cleanupMesh()
if ( anEdges[aCurEdgeIdx] != aFreeEdgeId )
continue;
for ( Standard_Integer anOtherEdgeIt = 1; anOtherEdgeIt <= 2; ++anOtherEdgeIt )
for ( Standard_Integer anOtherEdgeIt = 1; anOtherEdgeIt <= 2 && isCanNotBeRemoved; ++anOtherEdgeIt )
{
Standard_Integer anOtherEdgeId = ( aCurEdgeIdx + anOtherEdgeIt ) % 3;
const BRepMesh_PairOfIndex& anOtherEdgePair =
@@ -691,7 +691,27 @@ void BRepMesh_Delaun::cleanupMesh()
if ( anOtherEdgePair.Extent() < 2 )
{
isCanNotBeRemoved = Standard_False;
break;
}
else
{
for (int aTriIdx = 1; aTriIdx <= anOtherEdgePair.Extent () && isCanNotBeRemoved; ++aTriIdx)
{
if (anOtherEdgePair.Index (aTriIdx) == aTriId)
continue;
Standard_Integer v[3];
const BRepMesh_Triangle& aCurTriangle = GetTriangle (anOtherEdgePair.Index (aTriIdx));
myMeshData->ElementNodes (aCurTriangle, v);
for (int aNodeIdx = 0; aNodeIdx < 3 && isCanNotBeRemoved; ++aNodeIdx)
{
if (v[aNodeIdx] == mySupVert[0] ||
v[aNodeIdx] == mySupVert[1] ||
v[aNodeIdx] == mySupVert[2])
{
isCanNotBeRemoved = Standard_False;
}
}
}
}
}