Grasshopper exchange with Archicad

Here's a thread to discuss and demonstrate model exchange Grasshopper with Archicad.

I've been testing ACv16 import of OpenBIM IFC and it seems there are some nice improvements, including constructive solid geometry recognition.

More examples including files to test available on this filter of my blog:

http://geometrygym.blogspot.com/search/label/Archicad