The GRASS Direct is an environment developed within QGIS GRASS plugin/provider which makes it possible to run GRASS raster modules without GRASS mapset and without data conversion to GRASS format. Basically it is a library implementing GRASS data read/write function which is using QGIS providers to read/write data. In direct mode, the GRASS modules are run with this library instead of the standard GRASS gis library.
The GRASS modules may be run in direct mode from GRASS Tools (which are now always enabled) if no mapset is opened. The interface is similar to the standard GRASS Tools apart that the region is selected in combo box in top of options (to be discussed) and the output is a GeoTIFF file. It is also possible to run GRASS modules in direct mode from a shell if some environment variables are set. You can see those variables printed in top of the output tab. This is work in progress, so I was reluctant to announce that but because it had caused some compilation problems, it was necessary to explain a bit how it works. Currently there are only few modules enabled and you can find various problems. Especially it was only tested on Linux and most probably more fixes will be necessary on Mac and Windows. I believe that GRASS Direct could also be used in SEXTANTE with a little work. It would be necessary however to distinguish modules which may be run in direct mode from those which may not (mostly vector modules). Sorry for the problems I caused on Mac and Windows and many thanks to Jürgen and Larry for fixes. Radim _______________________________________________ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer