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 === |
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Get the topo map, in GeoTiff format. |
Get the topo map, in GeoTiff format. |
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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 === |
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Convert the GeoTiff file to USGS ASCII DEM format. |
Convert the GeoTiff file to USGS ASCII DEM (Digitial Elevation Model) format. |
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Possible tools are: |
Possible tools are: |
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* On Linux: [https://gdal.org/programs/gdal_translate.html GDAL translate option] |
* On Linux: [https://gdal.org/programs/gdal_translate.html GDAL translate option] |
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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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* 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 |
* 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. |
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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:
- On Linux: GDAL translate option
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.
- Another tutorial using QGIS and DemTo3DPrinting plugin.
