Thanks. I've never looked at AutoCAD, but was aware of Mirai. It was originally the S-Geometry suite from Symbolics, sold to Nichimen as Mirai, then sold to IzW

Thanks. I've never looked at AutoCAD, but was aware of Mirai. It was originally the S-Geometry suite from Symbolics, sold to Nichimen as Mirai, then sold to IzWare where it disappeared. Would be great if that code could be open-sourced, for historical reasons if nothing else.