Generate buildings (community size) from CAD file for energy analysis

[wim (Wim Dekeyser)]

Hi HC -

@hoganchan113

But I have no idea how can I generate buildings from a CAD file and put them on a 3D terrain model in rhino.

When you import the DWG file into your 3dm file, you’ll have to:

• scale the 2D curves to the correct size (that information is not available in the file)
• move the shapes to the correct XY location relative to the terrain
• extrude the 2D curves into solids
  • (for the “mountain”, you could use a cone)
  • it’s unclear if the height of shapes with a “podium” designate total height or height above podium
• move the objects to the correct Z elevation

For the last step, you could use a script like this one:

Buildings on topography

You can also try the following python script - it has the command-line option to either have the buildings stop at the first point they touch the surface, or be just embedded into the surface. It works with either mesh or surface volumes and can project onto either surfaces or meshes. There is currently a limitation with volumes that cross the outer edge, so the surface to project to should be larger than the volumes projecting onto it. ProjectVolumesToSrfs.py (5.2 KB) –Mitch

-wim