A drone survey of a roof ends with a point cloud: millions of 3D points that together describe the surface. For solar design and roofing estimates, the numbers people actually need are much simpler. How steep is each roof plane?

Source: [Dev.to](https://dev.to/sightflight/calculating-roof-pitch-and-azimuth-from-a-drone-point-cloud-with-python-28ma)

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