24 lines
655 B
Markdown
24 lines
655 B
Markdown
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Countour line generator from LIDAR data
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Usage:
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1. Download contour lines in format `6062999.75,584000.75,88.07`: coordinate
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pair and height (in meters) to `DTM_XX_YY_N.zip` files.
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2. Adjust `BOUNDS` in the Makefile.
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3. Run `make -j$(nproc) smooth_<X>.gpkg`. This will output a geo-package with
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contour lines every `X` meters. X can be fractional (e.g.
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`smooth_2.5.gpkg`).
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Dependencies:
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- postgis
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- gdal-bin
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- unzip
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TODO:
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1. Replace `managedb` stack with postgis-over-docker. This will lead to a less
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fragile postgis setup.
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2. Accept `BOUNDS` in a way that does not require to change the Makefile.
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