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SIGSEGV on show "Edge Direction" on cone.

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dmv 2009-09-17 09:38:37 +00:00
parent ad24433a09
commit 6743f46f1a
1 changed files with 7 additions and 0 deletions
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7
src/OBJECT/GEOM_AISShape.cxx
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@ -210,6 +210,9 @@ void GEOM_AISShape::Compute(const Handle(PrsMgr_PresentationManager3d)& aPresent
for ( ; Exp.More(); Exp.Next() ) {
TopoDS_Vertex aV1, aV2;
TopoDS_Edge anEdgeE = TopoDS::Edge(Exp.Current());
if ( anEdgeE.IsNull() ) continue;
TopExp::Vertices(anEdgeE, aV1, aV2);
gp_Pnt aP1 = BRep_Tool::Pnt(aV1);
gp_Pnt aP2 = BRep_Tool::Pnt(aV2);
@ -217,6 +220,9 @@ void GEOM_AISShape::Compute(const Handle(PrsMgr_PresentationManager3d)& aPresent
double fp,lp;
gp_Vec aDirVec;
Handle(Geom_Curve) C = BRep_Tool::Curve(anEdgeE,fp,lp);
if ( C.IsNull() ) continue;
if ( anEdgeE.Orientation() == TopAbs_FORWARD )
C->D1(lp, aP2, aDirVec);
else {
@ -234,6 +240,7 @@ void GEOM_AISShape::Compute(const Handle(PrsMgr_PresentationManager3d)& aPresent
aDir = aDirVec;
else
aDir = -aDirVec;
Prs3d_Arrow::Draw(aPrs, aP2, aDir, PI/180.*5., aDist/10.);
}
}