PAL13460 (PAL EDF 301 force the mesh to go through a point)

PAL13460 (PAL EDF 301 force the mesh to go through a point)
+  typedef sequence<PointStruct> nodes_array;
+  struct ElementSubType { ElementType SMDS_ElementType;
+                          boolean     isPoly;
+                          long        nbNodesInElement; };
+  typedef sequence<ElementSubType> types_array;
+  /*!
+   * Structure containing mesh edit preview data
+   */
+  struct MeshPreviewStruct { nodes_array nodesXYZ;
+                             long_array  elementConnectivities;
+                             types_array elementTypes; };
  inteface SMESH_Mesh {
+    /*!
+     * Return SMESH_MeshEditor that would not modify the mesh but
+     * fill MeshPreviewStruct
+     */
+    SMESH_MeshEditor GetMeshEditPreviewer()
+      raises (SALOME::SALOME_Exception);
+    /*!
+    * Return data of mesh edition preview which is computed provided
+    * that the editor was obtained trough SMESH_Mesh::GetMeshEditPreviewer()
+    */
+    MeshPreviewStruct GetPreviewData();