Hi,
I've a little problem reading DXF file with my own application.In my program I see entities that in Autocad there is'nt, can be PURGED.Reading che DXF file, how I can understand when a block (or entity) is not used (can be purged) and the i can leave invisible?What is the attribute of an entity that can be purged, hw I can see in the DXF code?Thanks,Best Regards, Massimo.

I suppose if a Block can be purged, it can be found in the TABLES section, but not in the ENTITIES section if it has not been inserted.Or...before making a dxf from AutoCAD, purge it first :)