gdal_contour
Create contour lines and polygons from a digital elevation model. More information: https://gdal.org/programs/gdal_contour.html.
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Create a vector dataset with contour lines spread over an 100-meter [i]nterval while [a]ttributing the elevation property as "ele":
gdal_contour -a {{ele}} -i {{100.0}} {{path/to/input.tif}} {{path/to/output.gpkg}}
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Create a vector dataset with [p]olygons spread over an 100-meter [i]nterval:
gdal_contour -i {{100.0}} -p {{path/to/input.tif}} {{path/to/output.gpkg}}
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