Topo to 3D

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How to make a printable 3D model from topo maps - notes.

Get the topo map data

Get the topo map, in GeoTiff format. Possible sources are:

Convert to DEM

Convert the GeoTiff file to USGS ASCII DEM (Digitial Elevation Model) format. Possible tools are:

sudo apt install gdal-bin
gdal_translate -of AAIGrid /yoursourcepath/output_alos.tif /youroutputpath/out.asc
  • Or from another program like QGIS. Load your raster file and then from the menu: Raster->Conversion->Translate. You will have to manually edit the command to change the format from GTiff to AAIGrid



  • You could import the map image to Blender and edit it there. There is a nice tutorial for that.