Hello, I’m trying to create a 3D model of building massings using a ShapeFile of building footprints. I mostly referenced this tutorial, and have used the @it component. I have a separate excel for the height.
One of the important steps, naturally, is to use the boundary surface component to create surfaces from the polylines imported before the extrusion. However, the boundary surface component doesn’t work well, and creates strange shapes (see image). This of course, causes the extrusion to not be able to work. It works perfectly well when i extract a smaller section of the entire parcel (e.g. 20-30 buildings) with perfectly independent polygons.
I guess one main reason is that the number of polygons from the ShapeFile is more than the attributes and the height fields (see images). Another could be overlapping polygons, or polygons within other polygons.
I have already cleaned the ShapeFile to remove garage, patios etc, leaving only building footprints. Has anyone encountered similar problems, and managed to find a solution?