X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=blobdiff_plain;f=src%2FSMESH%2FSMESH_MeshEditor.cxx;h=bb114051dae41a68fbdf8bcd3249b1564d15f5b7;hp=c3a62bf0cbb3c1e314b42a819f3130476a1920c8;hb=674c0d8b9d98776136d216ec8f1bad56acac5bf5;hpb=02ac54c6f33c5437c1d2204d704cf3da6fd31a8e

diff --git a/src/SMESH/SMESH_MeshEditor.cxx b/src/SMESH/SMESH_MeshEditor.cxx
index c3a62bf0c..bb114051d 100644
--- a/src/SMESH/SMESH_MeshEditor.cxx
+++ b/src/SMESH/SMESH_MeshEditor.cxx
@@ -7371,8 +7371,8 @@ void SMESH_MeshEditor::MergeNodes (TListOfListOfNodes & theGroupsOfNodes)
   for ( ; eIt != elems.end(); eIt++ )
   {
     const SMDS_MeshElement* elem = *eIt;
-    int nbNodes = elem->NbNodes();
-    int aShapeId = FindShape( elem );
+    const           int  nbNodes = elem->NbNodes();
+    const           int aShapeId = FindShape( elem );
 
     nodeSet.clear();
     curNodes.resize( nbNodes );
@@ -7912,17 +7912,21 @@ void SMESH_MeshEditor::MergeNodes (TListOfListOfNodes & theGroupsOfNodes)
 
     if ( isOk ) // the non-poly elem remains valid after sticking nodes
     {
-      elemType.Init( elem ).SetID( elem->GetID() );
+      if ( nbNodes != nbUniqueNodes ||
+           !aMesh->ChangeElementNodes( elem, & curNodes[0], nbNodes ))
+      {
+        elemType.Init( elem ).SetID( elem->GetID() );
 
-      SMESHDS_SubMesh * sm = aShapeId > 0 ? aMesh->MeshElements(aShapeId) : 0;
-      aMesh->RemoveFreeElement(elem, sm, /*fromGroups=*/false);
+        SMESHDS_SubMesh * sm = aShapeId > 0 ? aMesh->MeshElements(aShapeId) : 0;
+        aMesh->RemoveFreeElement(elem, sm, /*fromGroups=*/false);
 
-      uniqueNodes.resize(nbUniqueNodes);
-      SMDS_MeshElement* newElem = this->AddElement( uniqueNodes, elemType );
-      if ( sm && newElem )
-        sm->AddElement( newElem );
-      if ( elem != newElem )
-        ReplaceElemInGroups( elem, newElem, aMesh );
+        uniqueNodes.resize(nbUniqueNodes);
+        SMDS_MeshElement* newElem = this->AddElement( uniqueNodes, elemType );
+        if ( sm && newElem )
+          sm->AddElement( newElem );
+        if ( elem != newElem )
+          ReplaceElemInGroups( elem, newElem, aMesh );
+      }
     }
     else {
       // Remove invalid regular element or invalid polygon
@@ -7959,10 +7963,6 @@ public:
   const SMDS_MeshElement* Get() const
   { return myElem; }
 
-  void Set(const SMDS_MeshElement* e) const
-  { myElem = e; }
-
-
 private:
   mutable const SMDS_MeshElement* myElem;
 };
@@ -8747,9 +8747,20 @@ SMESH_MeshEditor::SewFreeBorder (const SMDS_MeshNode* theBordFirstNode,
     else
       newFaces.Append( myLastCreatedElems(i) );
   }
+  // get segments adjacent to merged nodes
+  TListOfListOfNodes::iterator groupIt = nodeGroupsToMerge.begin();
+  for ( ; groupIt != nodeGroupsToMerge.end(); groupIt++ )
+  {
+    const list<const SMDS_MeshNode*>& nodes = *groupIt;
+    SMDS_ElemIteratorPtr segIt = nodes.front()->GetInverseElementIterator( SMDSAbs_Edge );
+    while ( segIt->more() )
+      segments.insert( segIt->next() );
+  }
+
   // find coincident
   TListOfListOfElementsID equalGroups;
-  FindEqualElements( segments, equalGroups );
+  if ( !segments.empty() )
+    FindEqualElements( segments, equalGroups );
   if ( !equalGroups.empty() )
   {
     // remove from segments those that will be removed