Importing DWG / CAD Context Correctly

1. Clean geometry first:
   • Export only closed polylines (no hatches).
   • In Rhino: use DupBorder to extract perimeter lines from hatches.
2. In Revit, go to Insert > Import CAD.
3. Ensure the import units are correct.
4. After import, use Architecture > Floor:
   • Choose Pick Lines
   • Select each closed polyline to convert it into a Revit floor (roads, sidewalks, plots).
5. Assign different Floor Types so you can control surface graphics independently.

Important: If nothing appears after import, check:

• Correct view (Top view only)
• Scale differences
• Geometry located very far from Revit origin
• DWG layers turned off in Visibility/Graphics > Imported Categories

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Taught in

• Studio · 2023 — original class recording lives there.