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I have a shapefile of 3d polygons that represent the roofs of the buildings and I have the DTM of the area in raster and tin format. I would like to know how he was able to import a file in 3d format (for example collada) in which the polygons have been extruded from their z height to the projection on the mdt. I've tried many different functions but I still can't find the key. I also tried using BlenderGis but the problem is that when I export the models they lose the spatial reference.

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  • What’s MTD in your question title?
    – PolyGeo
    Jul 30 at 13:44
  • @PolyGeo Because the idea is to extrude the polygons from their height to a given DTM Jul 30 at 16:34
  • Use the FT3D GP Tool. Jul 30 at 17:42
  • Are you saying it’s a misspelling there and in lowercase in your question body?
    – PolyGeo
    Jul 30 at 21:16
  • If you wish to also ask about BlenderGIS then please do that in a separate question.
    – PolyGeo
    Jul 30 at 21:21

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