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PAL6839: Problems after scaling degenerated edge.

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This commit is contained in:
jfa 2006-04-11 08:49:19 +00:00
parent 4f419de998
commit 4ff7e6d932
1 changed files with 22 additions and 2 deletions
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24
src/GEOMImpl/GEOMImpl_ScaleDriver.cxx
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@ -27,11 +27,13 @@
#include <BRepBuilderAPI_Transform.hxx> #include <BRepBuilderAPI_Transform.hxx>
#include <BRep_Tool.hxx> #include <BRep_Tool.hxx>
#include <BRepAlgo.hxx>
#include <TopAbs.hxx>
#include <TopExp.hxx>
#include <TopoDS.hxx> #include <TopoDS.hxx>
#include <TopoDS_Shape.hxx> #include <TopoDS_Shape.hxx>
#include <TopoDS_Vertex.hxx> #include <TopoDS_Vertex.hxx>
#include <TopAbs.hxx> #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
#include <TopExp.hxx>
#include <Precision.hxx> #include <Precision.hxx>
#include <gp_Pnt.hxx> #include <gp_Pnt.hxx>
@ -77,6 +79,21 @@ Standard_Integer GEOMImpl_ScaleDriver::Execute(TFunction_Logbook& log) const
if (aShapeBase.IsNull() || aShapePnt.IsNull()) return 0; if (aShapeBase.IsNull() || aShapePnt.IsNull()) return 0;
if (aShapePnt.ShapeType() != TopAbs_VERTEX) return 0; if (aShapePnt.ShapeType() != TopAbs_VERTEX) return 0;
// Bug 6839: Check for standalone (not included in faces) degenerated edges
TopTools_IndexedDataMapOfShapeListOfShape aEFMap;
TopExp::MapShapesAndAncestors(aShapeBase, TopAbs_EDGE, TopAbs_FACE, aEFMap);
Standard_Integer i, nbE = aEFMap.Extent();
for (i = 1; i <= nbE; i++) {
TopoDS_Shape anEdgeSh = aEFMap.FindKey(i);
if (BRep_Tool::Degenerated(TopoDS::Edge(anEdgeSh))) {
const TopTools_ListOfShape& aFaces = aEFMap.FindFromIndex(i);
if (aFaces.IsEmpty())
Standard_ConstructionError::Raise
("Scaling aborted : cannot scale standalone degenerated edge");
}
}
// Perform Scaling
gp_Pnt aP = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt)); gp_Pnt aP = BRep_Tool::Pnt(TopoDS::Vertex(aShapePnt));
gp_Trsf aTrsf; gp_Trsf aTrsf;
aTrsf.SetScale(aP, aCI.GetFactor()); aTrsf.SetScale(aP, aCI.GetFactor());
@ -87,6 +104,9 @@ Standard_Integer GEOMImpl_ScaleDriver::Execute(TFunction_Logbook& log) const
if (aShape.IsNull()) return 0; if (aShape.IsNull()) return 0;
if (!BRepAlgo::IsValid(aShape))
Standard_ConstructionError::Raise("Scaling aborted : non valid shape result");
aFunction->SetValue(aShape); aFunction->SetValue(aShape);
log.SetTouched(Label()); log.SetTouched(Label());