Hi David, Sorry for my unclear question above, and thanks for the suggestion. Illustration below: - The roof's slope value from the original DSM is 0. - I want to modify the panel inclination to 25 degrees. - I generate a new 25deg slope layer using Raster Calculator. - I need to generate a new DSM which has 25 deg slope for the solar radiation tools. I've managed to generate a new slope layer (slope B) by adding the desired slope values to the original slope layer (slope A) using Raster Calculator and Con. However, I need a new DSM layer with the optimized panel inclination (slope B) as an input layer to calculate the solar radiation per building. I wonder if there is any automated way to do this in ArcGIS?
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