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gdal_contour: add page (#8200) 

* gdal_contour: add page

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Co-authored-by: Reinhart Previano Koentjoro <reinhart_previano@yahoo.com>

Co-authored-by: Reinhart Previano Koentjoro <reinhart_previano@yahoo.com>
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Jakob Miksch 2022-07-25 08:30:54 +02:00 committed by GitHub
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# gdal_contour
> Create contour lines and polygons from a digital elevation model.
> More information: <https://gdal.org/programs/gdal_contour.html>.
- 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}}`
- 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}}`