I work in architecture and we often have to create urban contexts for our projects which involves obtaining a building footprint file and then extruding them by hand.
I have attempted to use QGIS (v3.2.2, macOS) to achieve the goal of generating a DXF file with "solid" extrusions of buildings. My process so far:
- Import footprint data
- Add Z values using the elevation attribute associated with features
- Then process resulting layer with GRASS v.extrude using the approximate height attribute associated with features
- Use Export Project to DXF to generate the DXF file
When I loaded the DXF into Revit I expected to see "solid" extrusions. By solid I mean, volumes with opaque faces. Instead, I got 3D wireframe representations of the extruded footprint, as illustrated in the following image:
Is there a way to generate "solid" 3D geometry in QGIS and then export it as DXF preserving the "solidity" of the geometry?