Difference between revisions of "Topo to 3D"

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How to make a printable 3D model from topo maps - notes.
 
How to make a printable 3D model from topo maps - notes.
  
 
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=== Get the topo map data ===
 
Get the topo map, in GeoTiff format.
 
Get the topo map, in GeoTiff format.
 
Possible sources are:
 
Possible sources are:
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* https://viewer.nationalmap.gov/basic/
 
* https://viewer.nationalmap.gov/basic/
  
 
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=== Convert to DEM ===
Convert the GeoTiff file to USGS ASCII DEM format.
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Convert the GeoTiff file to USGS ASCII DEM (Digitial Elevation Model) format.
 
Possible tools are:
 
Possible tools are:
 
* On Linux: [https://gdal.org/programs/gdal_translate.html GDAL translate option]
 
* On Linux: [https://gdal.org/programs/gdal_translate.html GDAL translate option]
 
  sudo apt install gdal-bin
 
  sudo apt install gdal-bin
 
  gdal_translate -of AAIGrid /yoursourcepath/output_alos.tif /youroutputpath/out.asc
 
  gdal_translate -of AAIGrid /yoursourcepath/output_alos.tif /youroutputpath/out.asc
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* 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
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=== DEM to STL ===
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==Alternatives ==
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* You could import the map image to Blender and edit it there. There is [http://johnflower.org/tutorial/make-mountains-blender-heightmaps a nice tutorial] for that.
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* [https://edutechwiki.unige.ch/en/3D_printing_of_digital_elevation_models_with_QGIS#Create_STL_from_DEM_files_with_the_QGIS_DEMto3D_extension Another tutorial] using QGIS and DemTo3DPrinting plugin.

Latest revision as of 13:47, 23 July 2019

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

DEM to STL

Alternatives

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