Fix for bug Bug IPAL20288 (4x: CRASH after trying to build a sketch).

[modules/geom.git] / src / GEOMImpl / GEOMImpl_MirrorDriver.cxx

diff --git a/src/GEOMImpl/GEOMImpl_MirrorDriver.cxx b/src/GEOMImpl/GEOMImpl_MirrorDriver.cxx
index 20303383f68b129a08f2cb37f55f6fb2bbeaff03..218e1fee21266bfffcb0a5332c5704ad1a73b5cf 100644 (file)
--- a/src/GEOMImpl/GEOMImpl_MirrorDriver.cxx
+++ b/src/GEOMImpl/GEOMImpl_MirrorDriver.cxx
@@ -1,3 +1,22 @@
+// Copyright (C) 2005  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+// 
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either 
+// version 2.1 of the License.
+// 
+// This library is distributed in the hope that it will be useful 
+// but WITHOUT ANY WARRANTY; without even the implied warranty of 
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public  
+// License along with this library; if not, write to the Free Software 
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
 
 #include <Standard_Stream.hxx>
 
@@ -11,12 +30,13 @@
 #include <BRepBuilderAPI_Transform.hxx>
 
 #include <TopAbs.hxx>
+#include <TopExp.hxx>
 #include <TopoDS.hxx>
 #include <TopoDS_Shape.hxx>
 #include <TopoDS_Edge.hxx>
 #include <TopoDS_Face.hxx>
 #include <TopoDS_Vertex.hxx>
-#include <TopExp.hxx>
+#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
 
 #include <Geom_Plane.hxx>
 
@@ -67,6 +87,21 @@ Standard_Integer GEOMImpl_MirrorDriver::Execute(TFunction_Logbook& log) const
   TopoDS_Shape anOriginal = anOriginalFunction->GetValue();
   if (anOriginal.IsNull()) return 0;
 
+  // Bug 12158: Check for standalone (not included in faces) degenerated edges
+  TopTools_IndexedDataMapOfShapeListOfShape aEFMap;
+  TopExp::MapShapesAndAncestors(anOriginal, 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
+          ("Mirror aborted : cannot process standalone degenerated edge");
+    }
+  }
+
+  // Perform Mirror
   if (aType == MIRROR_PLANE || aType == MIRROR_PLANE_COPY) {
     Handle(GEOM_Function) aPlane = TI.GetPlane();
     if (aPlane.IsNull()) return 0;