Welcome, this is my first post.I have vector layer with buildings heights and vector/raster DEM file.I need to create solar maps with sun radiance values on the roof (and on surface, ofc). I am trying merge buildings with DEM, but I dont know how excatly to do it. I converted vector buildings to raster, made pixels outside buildings to null, and tried merge this file in 'r.mapcalc'. I think I should use 'if' function, but I dont know to how. Could anybody help me with it? It is possible to make flat surface in DEM under buidings in order to place buildings there?
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