postoperation to debug the tree

SlidingSurface3D/rfpm.pro

@@ -318,8 +318,9 @@ PostOperation {
 }
 
 PostOperation Check_Periodicity UsingPost MagSta_a {
-  PrintGroup[ EdgesOfTreeIn[ { Vol_Tree }, StartingOn { Sur_Tree } ], 
-			  In Vol_Tree, File "Tree.pos"];
+  // Print the tree for debugging purposes (the group name
+  PrintGroup[ _CO_Entity_39 , In Vol_Tree, File "Tree.pos"];
+
   Echo[ Str["l=PostProcessing.NbViews-1;",
 			"View[l].ColorTable = { DarkRed };",
 			"View[l].LineWidth = 5;"] ,