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Bug 0020228: [CEA 331] the geompy.RemoveExtraEdges crash with the attached brep shape file.

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This commit is contained in:
jfa 2009-04-03 08:22:54 +00:00
parent 7cb3d2610b
commit ad5a032fcc
1 changed files with 34 additions and 22 deletions
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56
src/GEOMAlgo/BlockFix_UnionEdges.cxx
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@ -22,7 +22,7 @@
// File: BlockFix_UnionEdges.cxx
// Created: 07.12.04 15:27:30
// Author: Sergey KUUL
//
#include <BlockFix_UnionEdges.ixx>
#include <Approx_Curve3d.hxx>
@ -169,7 +169,7 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
Handle(Geom_Circle) C2 = Handle(Geom_Circle)::DownCast(c3d2);
gp_Pnt P01 = C1->Location();
gp_Pnt P02 = C2->Location();
if(P01.Distance(P02)>Precision::Confusion()) continue;
if (P01.Distance(P02) > Precision::Confusion()) continue;
// can union circles => create new edge
TopoDS_Vertex V1 = sae.FirstVertex(edge1);
gp_Pnt PV1 = BRep_Tool::Pnt(V1);
@ -177,19 +177,31 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
gp_Pnt PV2 = BRep_Tool::Pnt(V2);
TopoDS_Vertex VM = sae.LastVertex(edge1);
gp_Pnt PVM = BRep_Tool::Pnt(VM);
GC_MakeCircle MC(PV1,PVM,PV2);
GC_MakeCircle MC (PV1,PVM,PV2);
Handle(Geom_Circle) C = MC.Value();
gp_Pnt P0 = C->Location();
gp_Dir D1(gp_Vec(P0,PV1));
gp_Dir D2(gp_Vec(P0,PV2));
Standard_Real fpar = C->XAxis().Direction().Angle(D1);
Standard_Real lpar = C->XAxis().Direction().Angle(D2);
Handle(Geom_TrimmedCurve) tc = new Geom_TrimmedCurve(C,fpar,lpar);
TopoDS_Edge E;
B.MakeEdge (E,tc,Precision::Confusion());
B.Add (E,V1); B.Add (E,V2);
B.UpdateVertex(V1, fpar, E, 0.);
B.UpdateVertex(V2, lpar, E, 0.);
if (!MC.IsDone() || C.IsNull()) {
// jfa for Mantis issue 0020228
if (PV1.Distance(PV2) > Precision::Confusion()) continue;
// closed chain
C = C1;
B.MakeEdge (E,C,Precision::Confusion());
B.Add(E,V1);
B.Add(E,V2);
}
else {
gp_Pnt P0 = C->Location();
gp_Dir D1(gp_Vec(P0,PV1));
gp_Dir D2(gp_Vec(P0,PV2));
Standard_Real fpar = C->XAxis().Direction().Angle(D1);
Standard_Real lpar = C->XAxis().Direction().Angle(D2);
Handle(Geom_TrimmedCurve) tc = new Geom_TrimmedCurve(C,fpar,lpar);
B.MakeEdge (E,tc,Precision::Confusion());
B.Add(E,V1);
B.Add(E,V2);
B.UpdateVertex(V1, fpar, E, 0.);
B.UpdateVertex(V2, lpar, E, 0.);
}
ShapeFix_Edge sfe;
sfe.FixAddPCurve(E,aFace,Standard_False);
sfe.FixSameParameter(E);
@ -198,11 +210,11 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
j--;
}
}
if(j<aChain.Length()) {
if (j < aChain.Length()) {
MESSAGE ("null curve3d in edge...");
return Standard_False;
}
if(aChain.Length()>1) {
if (aChain.Length() > 1) {
// second step: union edges with various curves
// skl for bug 0020052 from Mantis: perform such unions
// only if curves are bspline or bezier
@ -251,7 +263,7 @@ static Standard_Boolean MergeEdges(const TopTools_SequenceOfShape& SeqEdges,
//=======================================================================
//function : Perform
//purpose :
//purpose :
//=======================================================================
TopoDS_Shape BlockFix_UnionEdges::Perform(const TopoDS_Shape& Shape,
@ -260,18 +272,18 @@ TopoDS_Shape BlockFix_UnionEdges::Perform(const TopoDS_Shape& Shape,
myContext = new ShapeBuild_ReShape;
myTolerance = Tol;
TopoDS_Shape aResult = myContext->Apply(Shape);
// processing each solid
TopExp_Explorer exps;
for(exps.Init(Shape, TopAbs_SOLID); exps.More(); exps.Next()) {
TopoDS_Solid aSolid = TopoDS::Solid(exps.Current());
TopTools_IndexedMapOfShape ChangedFaces;
// creating map of edge faces
TopTools_IndexedDataMapOfShapeListOfShape aMapEdgeFaces;
TopExp::MapShapesAndAncestors(aSolid, TopAbs_EDGE, TopAbs_FACE, aMapEdgeFaces);
Handle(ShapeBuild_ReShape) aContext = new ShapeBuild_ReShape;
TopoDS_Shape aRes = aSolid;
aRes = aContext->Apply(aSolid);
@ -302,7 +314,7 @@ TopoDS_Shape BlockFix_UnionEdges::Perform(const TopoDS_Shape& Shape,
}
}
}
for(Standard_Integer i=1; i<=aMapFacesEdges.Extent(); i++) {
const TopTools_ListOfShape& ListEdges = aMapFacesEdges.FindFromIndex(i);
TopTools_SequenceOfShape SeqEdges;
@ -327,9 +339,9 @@ TopoDS_Shape BlockFix_UnionEdges::Perform(const TopoDS_Shape& Shape,
ChangedFaces.Add(tmpF);
}
}
} // end processing each face
// fix changed faces and replace them in the local context
for(Standard_Integer i=1; i<=ChangedFaces.Extent(); i++) {
TopoDS_Face aFace = TopoDS::Face(aContext->Apply(ChangedFaces.FindKey(i)));