[GRASS-dev] [Qgis-developer] GRASS Direct
FYI from the qgis-dev-ML: http://lists.osgeo.org/pipermail/qgis-developer/2012-December/023640.html __ 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 - best regards Helmut -- View this message in context: http://osgeo-org.1560.n6.nabble.com/Qgis-developer-GRASS-Direct-tp5022026.html Sent from the Grass - Dev mailing list archive at Nabble.com. ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
[GRASS-dev] Implementing MrVBF in GRASS
Greetings, devs, A popular covariate in the digital soil mapping community is the multiresolution valley bottom flatness (MrVBF) index, proposed by John Gallnd in 2003 [0]. While an open-source implementation is available in SAGA-GIS [1], I would like to be able to produce this in my favourite GIS environment. As I was getting started using pygrass, I realised that Python may be a bit slow for that sort of operations. Did anyone heard about an implementation (even partial) in C? Cheers, Pierre [0] http://www.agu.org/pubs/crossref/2003/2002WR001426.shtml [1] http://read.pudn.com/downloads84/sourcecode/app/321905/saga_2/src/modules_terrain_analysis/terrain_analysis/ta_morphometry/mrvbf.cpp__.htm -- Scientist Landcare Research, New Zealand ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
Re: [GRASS-dev] [GRASS GIS] #1683: error message v.db.addcol
#1683: error message v.db.addcol ---+ Reporter: jradinger | Owner: hamish Type: defect | Status: assigned Priority: major | Milestone: 6.4.3 Component: Shell Scripts | Version: svn-develbranch6 Keywords: v.db.addcol|Platform: All Cpu: Unspecified| ---+ Comment(by jradinger): And no, my mapset generally don't have any spaces in it, just to avoid such problems -- Ticket URL: http://trac.osgeo.org/grass/ticket/1683#comment:13 GRASS GIS http://grass.osgeo.org ___ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
