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Extracting building rooftops off DSM and DEM rasters.

Question asked by odysseas.karatzaferis_NKUA1837st on Jun 6, 2019

I have tried using the task Create Level of Detail 2 Building included in this exercise https://learn.arcgis.com/en/projects/extract-roof-forms-for-municipal-development/lessons/create-3d-buildings.htm and after following the steps for my own buildings footprint shapefile, DSM and DEM raster ( as well as the nDSM resulting from the Minus Tool) the task failed to give any results. Can this task actually be applied to other buildings apart from those specified in the exercise? If so, are there any known limitations or usual user errors that might have caused this malfunction? Thank you. 

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