GRASS GIS (Geographic Resources Analysis Support System) is an open source, Free Software Geographical Information System (GIS) with raster, topological vector, image processing, and graphics production functionality that operates on various platforms through a graphical user interface and shell in X-Windows. It is released under GNU General Public License (GPL).


Only a simple application without installer: Grass GIS for Mac OS X works anywhere. X11 is not required but if you prefer, there is also Grass GIS for X11 in the same application. The application is very big: more than 400MB but it includes all. No more external libraries. The application is Universal Binary in Mac OS X 10.5 and it run fast under Mac Intel. There is also a version for Mac OS X 10.4 only for PPC.

This software is free and without warranty

Lorenzo Moretti

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