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23080: [CEA 1497] Do not merge a middle node in quadratic with the extreme nodes...
[modules/smesh.git] / src / SMESHUtils / SMESH_OctreeNode.cxx
index 6225108..772a50f 100644 (file)
@@ -275,42 +275,33 @@ void SMESH_OctreeNode::FindCoincidentNodes (TIDSortedNodeSet& theSetOfNodes,
  * \param theGroupsOfNodes - list of nodes closed to each other returned
  */
 //=============================
-void SMESH_OctreeNode::FindCoincidentNodes ( TIDSortedNodeSet* theSetOfNodes,
-                                             const double               theTolerance,
+void SMESH_OctreeNode::FindCoincidentNodes ( TIDSortedNodeSet*                    theSetOfNodes,
+                                             const double                         theTolerance,
                                              list< list< const SMDS_MeshNode*> >* theGroupsOfNodes)
 {
   TIDSortedNodeSet::iterator it1 = theSetOfNodes->begin();
   list<const SMDS_MeshNode*>::iterator it2;
 
+  list<const SMDS_MeshNode*> ListOfCoincidentNodes;
+  TIDCompare idLess;
+
   while (it1 != theSetOfNodes->end())
   {
     const SMDS_MeshNode * n1 = *it1;
 
-    list<const SMDS_MeshNode*> ListOfCoincidentNodes;// Initialize the lists via a declaration, it's enough
-
-    list<const SMDS_MeshNode*> * groupPtr = 0;
-
     // Searching for Nodes around n1 and put them in ListofCoincidentNodes.
     // Found nodes are also erased from theSetOfNodes
     FindCoincidentNodes(n1, theSetOfNodes, &ListOfCoincidentNodes, theTolerance);
 
-    // We build a list {n1 + his neigbours} and add this list in theGroupsOfNodes
-    for (it2 = ListOfCoincidentNodes.begin(); it2 != ListOfCoincidentNodes.end(); it2++)
+    if ( !ListOfCoincidentNodes.empty() )
     {
-      const SMDS_MeshNode* n2 = *it2;
-      if ( !groupPtr )
-      {
-        theGroupsOfNodes->push_back( list<const SMDS_MeshNode*>() );
-        groupPtr = & theGroupsOfNodes->back();
-        groupPtr->push_back( n1 );
-      }
-      if (groupPtr->front() > n2)
-        groupPtr->push_front( n2 );
-      else
-        groupPtr->push_back( n2 );
+      // We build a list {n1 + his neigbours} and add this list in theGroupsOfNodes
+      if ( idLess( n1, ListOfCoincidentNodes.front() )) ListOfCoincidentNodes.push_front( n1 );
+      else                                              ListOfCoincidentNodes.push_back ( n1 );
+      ListOfCoincidentNodes.sort( idLess );
+      theGroupsOfNodes->push_back( list<const SMDS_MeshNode*>() );
+      theGroupsOfNodes->back().splice( theGroupsOfNodes->back().end(), ListOfCoincidentNodes );
     }
-    if (groupPtr != 0)
-      groupPtr->sort();
 
     theSetOfNodes->erase(it1);
     it1 = theSetOfNodes->begin();