HashMap<String, ArrayList<Vertex>> zoneListingVertexHash) {
GWT.log("DUPE renderRegions");
if( zoneListingVertexHash == null )
{
eventBus.fireEvent(new GetRegionsEvent());
} else
{
currentPolygon = null;
polygons = new ArrayList<RegionPolygon>();
this.zoneListingVertexHash = zoneListingVertexHash;