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I have downloaded a DTM and building heights from UK Digimaps (we have institutional access) and would like to:

Export them to STL or other CAD format. Is it possible to do this in QGIS or do I need multiple programs?

I haven't found any way of exporting to STL (dwg or other) yet.

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Seems GlobalMapper is an option: http://www.bluemarblegeo.com/products/global-mapper-formats-elevation.php#STL_StereoLithography_Files Isn't there a way in QGIS ?

  • It looks like this question is on its way to being closed as "too broad." Per this site's policy of one question per question, you should pick a single software you want to focus on. – csk Jan 3 '19 at 18:19
  • I've reduced it now to just bare essentials. Thanks. – HCAI Jan 3 '19 at 20:25
  • I don't think this is a carbon copy of that other question. More specifically, I'm asking about the Building Height layer, which is not covered in the answer there: gis.stackexchange.com/questions/228827/… – HCAI Jan 10 '19 at 13:50
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You need to have all the information you want to export in a raster layer, and you can write the model in STL format with the DEMto3D plugin.

demto3d-plugin

Maybe needs some update, its GUI was a bit deformed. However, I was able to choose the size of the base, the height and the spacing.

demto3d-gui

I don't have specific software to visualize STL models, but freeCAD could import it.

freecad-stl

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  • Thank you Gabriel. The buildings are a vector layer though.... – HCAI Jan 4 '19 at 8:56
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    @HCAI, you are welcome. I think you'll need to rasterize them. – Gabriel De Luca Jan 4 '19 at 12:22

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