0025568: SIGSEGV in thrusections with edge without 3D curve

[occt.git] / src / BRepFill / BRepFill_Generator.cxx

diff --git a/src/BRepFill/BRepFill_Generator.cxx b/src/BRepFill/BRepFill_Generator.cxx
index e919b39..989cd8b 100644 (file)
--- a/src/BRepFill/BRepFill_Generator.cxx
+++ b/src/BRepFill/BRepFill_Generator.cxx
@@ -61,7 +61,7 @@
 
 #include <BRepTools_WireExplorer.hxx>
 #include <BRepTools.hxx>
-
+#include <Standard_NullObject.hxx>
 
 
 //=======================================================================
@@ -96,6 +96,8 @@ Standard_Integer DetectKPart(const TopoDS_Edge& Edge1,
   }
   else {
     curv1 = BRep_Tool::Curve(Edge1, loc, first1, last1);
+    if (curv1.IsNull())
+      Standard_NullObject::Raise("Null 3D curve in edge");
     curv1 = 
       Handle(Geom_Curve)::DownCast(curv1->Transformed(loc.Transformation()));
     ff = first1;
@@ -161,6 +163,8 @@ Standard_Integer DetectKPart(const TopoDS_Edge& Edge1,
     }
     else {
       curv = BRep_Tool::Curve(Edge2, loc, first2, last2);
+      if (curv.IsNull())
+        Standard_NullObject::Raise("Null 3D curve in edge");
       curv = 
        Handle(Geom_Curve)::DownCast(curv->Transformed(loc.Transformation()));
       ff = first2;
@@ -339,6 +343,8 @@ void CreateKPart(const TopoDS_Edge& Edge1,const TopoDS_Edge& Edge2,
   }
   else {
     C1 = BRep_Tool::Curve(Edge1, loc, a1, b1);
+    if (C1.IsNull())
+      Standard_NullObject::Raise("Null 3D curve in edge");
     C1 = Handle(Geom_Curve)::DownCast(C1->Transformed(loc.Transformation()));
     aa = a1;
     bb = b1;
@@ -362,6 +368,8 @@ void CreateKPart(const TopoDS_Edge& Edge1,const TopoDS_Edge& Edge2,
   }
   else {
     C2 = BRep_Tool::Curve(Edge2, loc, a1, b1);
+    if (C2.IsNull())
+      Standard_NullObject::Raise("Null 3D curve in edge");
     C2 = Handle(Geom_Curve)::DownCast(C2->Transformed(loc.Transformation()));
     if (Edge2.Orientation() == TopAbs_REVERSED) {
       C2->Reverse();
@@ -663,6 +671,8 @@ void BRepFill_Generator::Perform()
        }
        else {
          C1 = BRep_Tool::Curve(Edge1,L1,f1,l1);
+          if (C1.IsNull())
+            Standard_NullObject::Raise("Null 3D curve in edge");
        }
        if (degen2) {
          Extremities(1) = BRep_Tool::Pnt(V2l);
@@ -671,6 +681,8 @@ void BRepFill_Generator::Perform()
        }
        else {
          C2 = BRep_Tool::Curve(Edge2,L2,f2,l2);
+          if (C2.IsNull())
+            Standard_NullObject::Raise("Null 3D curve in edge");
        }
        
        // compute the location