Brazilian Institute of Environment and Renewable Natural Resources

Shell scripts for GIS by Luiz Motta

• This package consists of a number of shells utilities for use in conjunction with GDAL, tilers-tools and dans-gdal-scripts.
• Started: 2015-03-05
• Version: 0.1

Scripts

16b_2_8b_convert.sh

• Convert images of 16 to 8 bits
• Dependeces: gdal 1.10.1 (gdal_translate, gdalinfo, gdalbuildvrt)
• Example (using parallel):
  ls -1 *.tif | parallel 16b_2_8b_convert.sh {}

footprint.sh

• Create GeoJson with border's polygon of image (limited with valid pixels)
• Dependeces: gdal 1.10.1(gdal_calc.py, gdal_sieve.py, gdal_edit.py and gdal_polygonize.py)
• Example (using parallel):
  ls -1 *.tif | parallel footprint.sh {}

footprint_add_url_tms.sh

• Add URL of TMS in footprint(GeoJson)
• Dependeces: None
• Example (using parallel):
  ls -1 *.geojson | parallel footprint_add_url_tms.sh {} http://10.1.8.20/test_lmotta

footprint_append_shp.sh

• Adds the footprint (GeoJson) inside shapefile (if not exist it is created)
• Dependeces: gdal 1.10.1(ogr2ogr)
• Example (NOT USE parallel!):
  for item in $(ls -1 *.geojson); do footprint_append_shp.sh $item LC8_footprint.shp; done

thumbnail_gdal.sh

• Create thumbnail file(PNG) from image
• Dependeces: gdal 1.10.1(gdal_translate)
• Example (use parallel!):
  ls -1 *.tif | parallel thumbnail_gdal.sh {} 30

mk_tiles.sh

• Create TMS structure (directories and files) and XML for GDAL_WMS driver from image
• Dependeces: gdal 1.10.1(gdalbuildvrt), dans-gdal-script 0.23-2(gdal_contrast_stretch), tilers-tools 3.2.0(gdal_tiler.py), thumbnail_gdal.sh
• Example (use parallel!):
  ls -1 *.tif | parallel mk_tiles.sh {} 1 2 3 2 12 ./png ./tms http://10.1.8.20/test_lmotta

Packages used by script

gdal

• Version: 1.10.1
• Source: www.gdal.org
• Ubuntu 14.04: installed by QGIS 2.8.1

dans-gdal-script

• Version: 0.23-2
• Source: https://github.com/gina-alaska/dans-gdal-scripts
• Ubuntu 14.04: available in the Ubuntu repository

tilers-tools

• Version: 3.2.0
• Source: https://code.google.com/p/tilers-tools/
• Ubuntu 14.04: download by source

Parallel

• Version: 20130922-1
• Source: https://www.gnu.org/software/parallel/
• Ubuntu 14.04: available in the Ubuntu repository

Credits

These programs were written by Luiz Motta.
Send questions or comments to motta.luiz@gmail.com.

This software is provided "AS IS."