I have some Autocad data where the objects are constructed as 3D solids, like this:
The 3D data is nice for many uses, but I would also like to extract a simplified version for our GIS databases. The Surface Footprint Replacer will generate a nice polygon, but will also remove the elevation and return 2D data.
Is there a way to get a footprint that retains the elevations of the "top face" of the solid? I most cases this face is flat, but in some cases, like ducts and pipes, this is not the case.