Fix for the break-link dump into python: also sub-mesh references must be updated.

[modules/smesh.git] / src / SMESH / SMESH_MeshEditor.cxx

diff --git a/src/SMESH/SMESH_MeshEditor.cxx b/src/SMESH/SMESH_MeshEditor.cxx
index 7466070e46f335978bf01c4b6e44712c5ff055c7..b7c6ef24a01bf335c05e4bc0fe0dd10a48b14879 100644 (file)
--- a/src/SMESH/SMESH_MeshEditor.cxx
+++ b/src/SMESH/SMESH_MeshEditor.cxx
@@ -1093,19 +1093,37 @@ bool SMESH_MeshEditor::Reorient (const SMDS_MeshElement * theElem)
       MESSAGE("Warning: bad volumic element");
       return false;
     }
-    const int nbFaces = aPolyedre->NbFaces();
+    SMDS_VolumeTool vTool( aPolyedre );
+    const int nbFaces = vTool.NbFaces();
+    vector<int> quantities( nbFaces );
     vector<const SMDS_MeshNode *> poly_nodes;
-    vector<int> quantities (nbFaces);
 
-    // reverse each face of the polyedre
-    for (int iface = 1; iface <= nbFaces; iface++) {
-      int inode, nbFaceNodes = aPolyedre->NbFaceNodes(iface);
-      quantities[iface - 1] = nbFaceNodes;
+    // check if all facets are oriented equally
+    bool sameOri = true;
+    vector<int>& facetOri = quantities; // keep orientation in quantities so far
+    for (int iface = 0; iface < nbFaces; iface++)
+    {
+      facetOri[ iface ] = vTool.IsFaceExternal( iface );
+      if ( facetOri[ iface ] != facetOri[ 0 ])
+        sameOri = false;
+    }
+
+    // reverse faces of the polyhedron
+    int neededOri = sameOri ? 1 - facetOri[0] : 1;
+    poly_nodes.reserve( vTool.NbNodes() );
+    for ( int iface = 0; iface < nbFaces; iface++ )
+    {
+      int             nbFaceNodes = vTool.NbFaceNodes( iface );
+      const SMDS_MeshNode** nodes = vTool.GetFaceNodes( iface );
+      bool toReverse = ( facetOri[ iface ] != neededOri );
 
-      for (inode = nbFaceNodes; inode >= 1; inode--) {
-        const SMDS_MeshNode* curNode = aPolyedre->GetFaceNode(iface, inode);
-        poly_nodes.push_back(curNode);
-      }
+      quantities[ iface ] = nbFaceNodes;
+
+      if ( toReverse )
+        for ( int inode = nbFaceNodes - 1; inode >= 0; inode-- )
+          poly_nodes.push_back( nodes[ inode ]);
+      else
+        poly_nodes.insert( poly_nodes.end(), nodes, nodes + nbFaceNodes );
     }
     return GetMeshDS()->ChangePolyhedronNodes( theElem, poly_nodes, quantities );
   }
@@ -7460,6 +7478,8 @@ void SMESH_MeshEditor::FindEqualElements( TIDSortedElemSet &        theElements,
   while ( elemIt->more() )
   {
     const SMDS_MeshElement* curElem = elemIt->next();
+    if ( curElem->IsNull() )
+      continue;
     ComparableElement      compElem = curElem;
     // check uniqueness
     const ComparableElement& elemInSet = mapOfElements.Added( compElem );
@@ -12547,8 +12567,8 @@ int SMESH_MeshEditor::MakeBoundaryMesh(const TIDSortedElemSet& elements,
         for ( inode = 0; inode < srcNodes.size(); ++inode )
           tgtNodes[inode] = getNodeWithSameID( tgtMeshDS, srcNodes[inode] );
         if ( /*aroundElements && */tgtEditor.GetMeshDS()->FindElement( tgtNodes,
-                                                                   missType,
-                                                                   /*noMedium=*/false))
+                                                                       missType,
+                                                                       /*noMedium=*/false))
           continue;
         tgtEditor.AddElement( tgtNodes, elemKind.SetPoly( tgtNodes.size()/(iQuad+1) > 4 ));
         ++nbAddedBnd;
@@ -12558,8 +12578,8 @@ int SMESH_MeshEditor::MakeBoundaryMesh(const TIDSortedElemSet& elements,
       {
         TConnectivity& nodes = missingBndElems[ i ];
         if ( /*aroundElements && */tgtEditor.GetMeshDS()->FindElement( nodes,
-                                                                   missType,
-                                                                   /*noMedium=*/false))
+                                                                       missType,
+                                                                       /*noMedium=*/false))
           continue;
         SMDS_MeshElement* newElem =
           tgtEditor.AddElement( nodes, elemKind.SetPoly( nodes.size()/(iQuad+1) > 4 ));