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Making a 3D model of buildings from a OSM + LIDAR (.LAZ) dataset using ArcGIS Pro
Note: The process detailed below works in THEORY, but it produced such terrible results, I simply gave it up.
What you need
What you need:
1. .las dataset, classified (or not)
2. building footprints as polygons
3. DEM of ground elevation terrain (.geotiff)
Overview of the process
The main goal of this process is to get 3D buildings with heights. The footprint of the building comes from the polygon feature layer, and the building height comes from the LIDAR dataset.
The parts I listed above, can pretty much be extracted or obtained entirely from the LIDAR dataset (to my understanding). However, having tried to extract building footprints, ground, etc., I found I wasn’t really getting the resolution I needed to have clean buildings. So if you have the option to just download the .DEM terrain from the original data source, and if OSM has building footprints you can get, that’s what I would do.
