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I'm GIS beginner and I'm trying to make a DEM with building's height.

Step 1 > I get a countor shape file. enter image description here

Step 2 > Generate a DEM. enter image description here

Step 3 > I get a Buildings shape file. enter image description here

And then, how can I merge the DEM and Buildings shape?

Finally, I want to get a DEM which has countour and buildings height are merged.

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  • This is not standard procedure, normally, the workflow is inverse: you have a DEM and extract contours. I'm not sure about your final task, please provide more information. Proper DEMs are created from measurement (e.g. with Lidar/Laser), not from vector data. This does not seem to make sense to me.
    – Babel
    Commented Aug 30 at 6:12
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    You can rasterize the buildings. If you have a heigh attribute for each building use it, otherwise you can set a fixed value for all rasters. Set the value to 0 where there isnt a building. Sum the output raster and the DEM
    – Bera
    Commented Aug 30 at 6:27
  • @Bera, Thanks, I rasterize the buildings shape, but the result is differ from my mind. How can I set the value to 0 where there isn't a buildings during rasterizing?
    – jhchoi
    Commented Aug 30 at 8:56
  • What tool do you use to rasterize
    – Bera
    Commented Aug 30 at 8:57
  • gis.stackexchange.com/questions/455612/…
    – Bera
    Commented Aug 30 at 11:23

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