From: eap <eap@opencascade.com>
Date: Tue, 11 Mar 2014 13:33:49 +0000 (+0400)
Subject: 22507: EDF 2845 SMESH : regression with 3D extrusion algo
X-Git-Tag: V7_4_0a1~40
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=28140bb1c82c79dce2df65c7cc92fbddfc5f09ee;p=modules%2Fsmesh.git

22507: EDF 2845 SMESH : regression with 3D extrusion algo

Fix a case of a triangular base FACE with a sole triangular element
---

diff --git a/src/StdMeshers/StdMeshers_Prism_3D.cxx b/src/StdMeshers/StdMeshers_Prism_3D.cxx
index 71412270d..c43a126c3 100644
--- a/src/StdMeshers/StdMeshers_Prism_3D.cxx
+++ b/src/StdMeshers/StdMeshers_Prism_3D.cxx
@@ -3927,6 +3927,8 @@ TPCurveOnHorFaceAdaptor::TPCurveOnHorFaceAdaptor( const TSideFace*   sideFace,
     const int Z = isTop ? sideFace->ColumnHeight() - 1 : 0;
     map<double, const SMDS_MeshNode* > u2nodes;
     sideFace->GetNodesAtZ( Z, u2nodes );
+    if ( u2nodes.empty() )
+      return;
 
     SMESH_MesherHelper helper( *sideFace->GetMesh() );
     helper.SetSubShape( horFace );
@@ -3991,7 +3993,7 @@ gp_Pnt2d StdMeshers_PrismAsBlock::TPCurveOnHorFaceAdaptor::Value(const Standard_
   map< double, gp_XY >::const_iterator i1 = myUVmap.upper_bound( U );
 
   if ( i1 == myUVmap.end() )
-    return myUVmap.rbegin()->second;
+    return myUVmap.empty() ? gp_XY(0,0) : myUVmap.rbegin()->second;
 
   if ( i1 == myUVmap.begin() )
     return (*i1).second;