If these objects were created in AutoCad Architecture they are proprietary to the application and cannot be seen or edited with anything else. You must have AutoCad Architecture, and in that, use the “Export to AutoCad” function to convert them into standard AutoCad 3D geometry. So probably your architect needs to do that.
Thanks for pointing that out - I took a new look at the table and found some omissions
Surfaces and solids: simple things like extruded polylines are supported, but spline-based geometry (default behaviour of AutoCad’s 3D tools) either do not import or are heavily distorted as the importer has no settings to control the “resolution” (last time this was discussed in these forums I got better results by exporting from AutoCad to STL and importing that).
Great, thanks guys. Looks like coordination with the architect is the best
bet. Here’s the soundbite:
“I use the SketchUp Pro software so I’m curious if you wouldn’t mind
exploding block groups if there are any, and if you use the AutoCad
Architecture software, I’m curious if you could please export the file
using the Export to AutoCad function so that those proprietary entities are
converted into standard geometry. This will ensure a successful import on