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0030250: Obtained shape is invalid due to presence of the loop containing two separate edges lying on the seam of the closed surface

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Holes with null area is excluded from result in the ShapeFix_Face::FixMissingSeam in order to avoid cut by seam of the surface
This commit is contained in:
gka
2018-10-18 19:50:35 +03:00
parent 6916477205
commit 13786aab83
1 changed files with 5 additions and 7 deletions
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12
src/ShapeFix/ShapeFix_Face.cxx
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@@ -505,13 +505,6 @@ Standard_Boolean ShapeFix_Face::Perform()
if ( NeedFix(myFixPeriodicDegenerated) )
this->FixPeriodicDegenerated();
if ( NeedFix ( myFixSmallAreaWireMode ) )
{
if (FixSmallAreaWire(Standard_False))
myStatus |= ShapeExtend::EncodeStatus(ShapeExtend_DONE4);
}
myResult = myFace;
TopoDS_Shape savShape = myFace; //gka BUG 6555
// fix missing seam
@@ -1715,6 +1708,11 @@ Standard_Boolean ShapeFix_Face::FixMissingSeam()
else if ( wire.IsSame ( w2 ) ) wire = w21;
else
{
Handle(ShapeAnalysis_Wire) anAnalyzer = new ShapeAnalysis_Wire(wire, myFace, Precision());
//To avoid addition of holes with null area (OCCT issue 0030250)
if (anAnalyzer->CheckSmallArea(wire))
continue;
// other wires (not boundary) are considered as holes; make sure to have them oriented accordingly
TopoDS_Shape curface = tmpF.EmptyCopied();
B.Add(curface,wire);