Hello Markus On Mon, 4 Jun 2007, Markus Neteler wrote:
Hi, a friend told me that with the latest QGIS release candidate, there is a winGRASS problem: $ v.rast.stats vector=CEA_riserve raster=CEA_slope colprefix=delete c:/Programmi/Quantum: c:/Programmi/Quantum: No such file or directory
v.rast.stats is a shell script, so you are likely to have loads of problems if not finding it nearly impossible to get it working properly on Windows. I notice there are loads of places in it that paths aren't quoted so that is probably the first problem (although to be fair that is also a problem for Unix and isn't a problem for Windows if you don't install software in paths with spaces in them!).
Then there is the fact that Msys doesn't understand Windows-style paths, but the output from g.tempfile will be a Windows-style path. (A question for another day: perhaps we could investigate other bourne-compatible shells for Windows that *do* understand Windows paths? But some GRASS scripts would probably need to be changed in other ways to be compatible with that; maybe more effort than it's worth.)
Another thing is that v.rast.stats attempts to call v.db.addcol and fails - it's also a script, so on Windows is represented by the file v.db.addcol.bat - apparently Msys's shell can't run .bat files. That's actually something I didn't forsee when implementing the .bat script-launching mechanism for Windows. You could probably work around it by putting in the full path ($GISBASE/scripts) before calling another script from a script, but then you still have the issue with incompatible path names as I mentioned above.
In general it's a pleasant surprise if some shell scripts to happen to work OK on Windows, and IMHO shouldn't really be considered a bug if they don't. I feel the fact that QGIS includes a copy of Msys with GRASS gives the "illusion" of GRASS being more compatible with Windows than it really is - the truly native WinGRASS we're working on is a more accurate expression of GRASS's compatiblity with Windows as I see it.
Paul _______________________________________________ grass-dev mailing list [email protected] http://grass.itc.it/mailman/listinfo/grass-dev
