On Sun, Mar 14, 2010 at 12:42:38PM +0800, ³öûעÒâ ÀñÄÎ wrote: > Please try the file in the attachment with geos-3.2.0. It crashes. Who can tell me what is wrong ? Thanks. Your code works fine against current trunk. Please try upgrading. --strk; () Free GIS & Flash consultant/developer /\ http://strk.keybit.net/services.html