Mac OS X installers for GRASS GIS.

• GRASS.app 6.4 RC5-3 (Snow Leopard) [39.2 MiB].
• GRASS.app 6.4 RC5-3 (Leopard) [62.0 MiB].*
• GRASS 6.4 RC5 source [20.1 MiB].
• GDAL-GRASS Plugin makefile [3.2 KiB].
• GRASS.app 6.3.0-3 (Leopard) [24.4 MiB].*
• GRASS 6.3.0 source [16.9 MiB].
• R statistics (optional)

NOTE: if you have problems updating, trash the GRASS installer receipt in /Library/Receipts and trash the GRASS application. Then try installing again.

GRASS requires the SQLite3, FreeType, UnixImageIO, PROJ, GEOS, and GDAL Unix Compatibility Frameworks (GRASS 6.3 requires GDAL 1.5, GRASS 6.4 → GDAL 1.6). The installer does NOT check for these, so make sure they are installed before trying to run GRASS. GRASS is Universal for PPC and Intel Macs, and runs on Leopard and above. A few support programs, used by various GRASS modules, are included in the application (gpsbabel, ppmtompeg). Also included is a GDAL-GRASS plugin (this used to be included in GDAL).

* Leopard builds also the FFTW3 framework (see the archives). Future builds will embed FFTW.

See the GUI Notes below for additional requirements.

NOTE: the Leopard version will not run properly on Tiger, but due to limitations of the automated package generation the installer will still let you install it on Tiger.

See the readme for startup options.

The wxPython GUI is also included. It is a work in progress, and there may be problems (report problems to the GRASS Dev or GUI lists, or bug tracker). Type "g.gui wxpython" in the GRASS terminal to start it.

GRASS 6.4

The GUI uses the system Python (2.5 on Leopard and 2.6 on Snow). wxPython is now included in the application and a separate install is not required.

GRASS 6.3

The GUI uses the system Python 2.5 on Leopard. The wxpython GUI in GRASS 6.3 is an early development version, so use GRASS 6.4 if you want to try the wxpython GUI.

GRASS 6.4

The TclTk GUI needs ActiveTcl 8.5 (not 8.6) from ActiveState.

GRASS 6.3

An X11 Tcl/Tk is included with GRASS 6.3.

Included is a build template similar to the GEM system for modules. But it doesn't require the module source to be configured for GEM (I haven't seen any that are yet). It's a bit rough. See the included readme for details.

GRASS can be used with R (Tiger only). You should get the latest R binaries (at least 2.3.0), the mini install is sufficient (no C/Fortran for building packages from source). The R.app Package Installer is a handy GUI front-end to the install tools. Install the R GDAL package from the GDAL framework (instructions are included with it). Install the maptools binary package from the CRAN binary repository. Install the spgrass6 from the CRAN source repository. See the GRASS stats page for instructions on use.

For GRASS to run on Panther or Tiger, download the source and see the included Mac OS X build notes for help on how to compile from source.