Wonderful. I did not think about curved/arched roof surfaces. The last thing I want to do is make this more complicated than it needs to be, so thank you! If you don't mind, where might I find an algorithm to test out?

I found a paper from the Lawrence Berkeley national laboratory referencing Hough Transform a few weeks ago! That led me to the same conclusion about projecting that geometry. But their example was a flat-roof commercial building so it only outlined the building. Based on what you know, do you think this method would be a good fit for typical residential roofs like the one I illustrated above? Thanks so much!