To avoid some of the pitfalls of the AutoCAD Express Tool called Flatten, contributor Raymond Rizkallah has written this LISP routine that filters out all entities except lines, lwpolylines, circles, and arcs. The routine still uses the Flatten command, but only allows for a selection of the aforementioned entity types.
Start by loading the LISP routine, then run the FLATT command. Make a selection as usual, but notice that only the entity types above will be selected. |