Combine Polylines within groups

[Anonymous]

Hello everyone,

I have a big dwg with aprox 2k groups consisting of aprox. 10 Polylines each. Those Polylines can always be combined into one Polyline - so what I want to do is write a lisp, that combines all Polylines from each group into one and ungroup the single Polyline.

Since I'm really not an expert with lisp - could someone offer some advice?

Thanks 🙂

[pendean]

Post a sample DWG file with these objects please.

[Anonymous]

Sample here 🙂
Original file is about 10 times the size.