GRASS-MapServer

• DEMO 1:
  • Start demo SPEARFISH mapserver | Download the sample server (270kb) | Package contents | README
    This simple implementation uses MapServer and libgrass to read GRASS raster data directly.
    Note 2005: Please use the GDAL-GRASS plugin instead.
    When using above demo server, please cite as follows:
         M. Neteler, H. Mitasova, 2002, Open Source GIS: A GRASS GIS Approach.
         464 pp, ISBN: 1-4020-7088-8, Kluwer Academic Publishers, Boston, Dordrecht.

• DEMO 2 (New 1/2003):
  • Start demo SPEARFISH mapserver with JavaScript/DHTML, GDAL/OGR as well as PostGIS/GRASS 5.7 vector support

• DEMO 3 (New 8/2007):
  • Simple OpenLayers server: demo SPEARFISH server (use SHIFT-left-mouse for zoom box)

• DEMO 4 (New 8/2007):
  • Nice OpenLayers server: demo SPEARFISH server (use SHIFT-left-mouse for zoom box)

• Troubleshooting for MapServer/GRASS support: (updated 10/2006)
  • Is GDAL enabled:
    /var/www/cgi-bin/mapserv -v
    You should see 'GDAL', otherwise recompile 'mapserv'
  • Is GDAL compiled with GRASS support:
    gdal_translate --formats | grep -i grass
    You should see 'GRASS', otherwise compile GDAL-OGR-GRASS-Plugin
  • "msDrawRaster():Image handling error. Unrecognized or unsupported image format."
    NOTE: GRASS raster map directly read from location should be in 8bit. If 'r.info' reports values higher that 255, you somehow have to reduce the number of categories (e.g. 'r.rescale'). Such rescaled maps are only usable for visualization purposes.
  • - When using libgrass5: Take care that the GRASS settings file is named '.grassrc5' (and NOT '.grassrc57') and stored in the server's DocumentRoot directory.
    - When using GRASS/GDAL plugin: no .grassrc file needed.
  • ... data not found or unsupported format: full data path need to be world readable. Really. Check parent dirs, too.

PHP/GRASS Demo

• Pretty low level, but done with a few lines of code: PHP/GRASS Demo
• Recent Earthquakes: map generated by GRASS on the fly with PHP (added 4/2006)
• Recent Earthquakes: map generated by GRASS on the fly with PHP (new 2011)