GRASS GIS addon programs:

  • r.surf.nnbathy - raster interpolation using triangulation, natural neighbor or non-Sibsonian natural neighbor algorithm.

    Version 1.96, 2008.25.03.

    program documentation changelog

  • v.flip - flip vector line direction (in GRASS 6.3 this function was implemented in v.edit module; in GRASS 6.4 the new digitisation module will also allow for interactive line direction flipping).

    Version 1.7, 2007.01.30.

    program documentation changelog

  • v.breach - support the digital elevation model correction to ensure water flow in the channel in accordance with the water course direction (so-called drainage enforcement).

    Version 5.9.7, 22.01.2008.

    program documentation changelog

  • v.line.center - create vector points at geometric centers of given vector lines, maintaining the information allowing for transfer of the line feature attributes to output point features.

    Version 1.0.1, 24.01.2007.

    program documentation changelog


Quantum GIS addon programs:


Other:

  • qgis_srs.sh - a script for updating the database of coordinate systems for Quantum GIS. On 19.08.2009 it was included into QGIS SVN, and is used for updating QGIS CRS databases for official releases now.

    Version 1.1.0, 19.03.2009.

    program changelog

    Unfortunately few codes can't be represented in PROJ.4 format, therefore the script currently ignores them. There is a GDAL Trac ticket open about that.