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Motiejus Jakštys d99842b426 add layer2img.py
2020-12-11 11:10:12 +02:00
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chaikin.sql contours 2020-12-11 10:44:26 +02:00
clip.awk contours 2020-12-11 10:44:26 +02:00
layer2img.py add layer2img.py 2020-12-11 11:10:12 +02:00
Makefile remove redundant echo 2020-12-11 11:02:38 +02:00
managedb contours 2020-12-11 10:44:26 +02:00
README.md add layer2img.py 2020-12-11 11:10:12 +02:00

README.md

Countour line generator from LIDAR data

Usage:

  1. Download contour lines in format 6062999.75,584000.75,88.07: coordinate pair and height (in meters) to DTM_XX_YY_N.zip files.
  2. Adjust BOUNDS in the Makefile.
  3. Run make -j$(nproc) smooth_<X>.gpkg. This will output a geo-package with contour lines every X meters. X can be fractional (e.g. smooth_2.5.gpkg).
  4. Optional: you may generate a raster image with layer2img.py.

Dependencies:

  • postgis
  • gdal-bin
  • unzip

TODO:

  1. Replace managedb stack with postgis-over-docker. This will lead to a less fragile postgis setup.
  2. Accept BOUNDS in a way that does not require to change the Makefile.

License

Code in this directory is public domain.