23156: EDF 9626 SMESH: Dump study produces a non-working script

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

diff --git a/src/SMESH/SMESH_MeshEditor.cxx b/src/SMESH/SMESH_MeshEditor.cxx
index 44bd3e24c99e154f180679cc0b7d3874a2393a58..146e8c12a2eccbbaa4df2033f7a1ea46c680b1b9 100644 (file)
--- 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
@@ -8269,6 +8273,8 @@ bool SMESH_MeshEditor::CheckFreeBorderNodes(const SMDS_MeshNode* theNode1,
 //=======================================================================
 //function : SewFreeBorder
 //purpose  :
+//warning  : for border-to-side sewing theSideSecondNode is considered as
+//           the last side node and theSideThirdNode is not used
 //=======================================================================
 
 SMESH_MeshEditor::Sew_Error
@@ -8745,9 +8751,20 @@ 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