+ //clear globaldatas old tree names if any
+ globaldata->Treenames.clear();
+
+ //fills globaldatas tree names
+ globaldata->Treenames = globaldata->Groups;
+
+ //create treemap class from groupmap for tree class to use
+ tmap = new TreeMap();
+ tmap->makeSim(globaldata->gGroupmap);
+ globaldata->gTreemap = tmap;
+
+ if (m->control_pressed) { return 0; }
+