NPAL16716: Compound. To create the groups of the initial meshes. Awoiding to create...

diff --git a/src/SMESH_I/SMESH_Gen_i.cxx b/src/SMESH_I/SMESH_Gen_i.cxx
index 357b8d77fad43a1f269f43d36cd3629885dfb27b..61b323772c2e27d5446e79c97ca98cec068454b0 100644 (file)
--- a/src/SMESH_I/SMESH_Gen_i.cxx
+++ b/src/SMESH_I/SMESH_Gen_i.cxx
@@ -1512,52 +1512,60 @@ SMESH_Gen_i::ConcatenateCommon(const SMESH::mesh_array& theMeshesArray,
                  str += aMeshSObj->GetName();
                str += "_";
 
+               int anLen = 0;
+
                switch(aGroupType) {
                case SMESH::NODE:
-                   str += "Nodes";
-                   anIDsNodes->length(anNbNodes++);
-                   break;
+                 str += "Nodes";
+                 anIDsNodes->length(anNbNodes);
+                 anLen = anNbNodes;
+                 break;
                case SMESH::EDGE:
-                   str += "Edges";
-                   anIDsEdges->length(anNbEdges++);
-                   break;
+                 str += "Edges";
+                 anIDsEdges->length(anNbEdges);
+                 anLen = anNbEdges;
+                 break;
                case SMESH::FACE:
-                   str += "Faces";
-                   anIDsFaces->length(anNbFaces++);
-                   break;
+                 str += "Faces";
+                 anIDsFaces->length(anNbFaces);
+                 anLen = anNbFaces;
+                 break;
                case SMESH::VOLUME:
-                   str += "Volumes";
-                   anIDsVolumes->length(anNbVolumes++);
-                   break;
+                 str += "Volumes";
+                 anIDsVolumes->length(anNbVolumes);
+                 anLen = anNbVolumes;
+                 break;
                default:
-                   break;
+                 break;
                }
-               
-               aGroupName = str.c_str();
 
-               // add a new group in the mesh
-               aNewGroup = aNewImpl->CreateGroup(aGroupType, aGroupName);
+               if(anLen) {
+                 aGroupName = str.c_str();
 
-               switch(aGroupType) {
-               case SMESH::NODE:
+                 // add a new group in the mesh
+                 aNewGroup = aNewImpl->CreateGroup(aGroupType, aGroupName);
+
+                 switch(aGroupType) {
+                 case SMESH::NODE:
                    aNewGroup->Add( anIDsNodes );
                    break;
-               case SMESH::EDGE:
+                 case SMESH::EDGE:
                    aNewGroup->Add( anIDsEdges );
                    break;
-               case SMESH::FACE:
+                 case SMESH::FACE:
                    aNewGroup->Add( anIDsFaces );
                    break;
-               case SMESH::VOLUME:
+                 case SMESH::VOLUME:
                    aNewGroup->Add( anIDsVolumes );
                    break;
-               default:
+                 default:
                    break;
-               }
+                 }
                
-               aListOfNewGroups.clear();
-               aListOfNewGroups.push_back(aNewGroup);
-               aGroupsMap.insert(make_pair( make_pair(aGroupName, aGroupType), aListOfNewGroups ));
+                 aListOfNewGroups.clear();
+                 aListOfNewGroups.push_back(aNewGroup);
+                 aGroupsMap.insert(make_pair( make_pair(aGroupName, aGroupType), aListOfNewGroups ));
+               }
              }
            }