On Sat, 3 Jan 2009, Markus Neteler wrote:
On Fri, Jan 2, 2009 at 7:38 PM, Jarek Jasiewicz <[email protected]> wrote:
Markus Neteler pisze:
2009/1/2 Jarek Jasiewicz <[email protected]>:
In fact I didn't use R for two month so maybe I lost something but after
compilation of grass 6.4 svn I tiried to read raster I recive the
following:
I assume that you did not run
make distclean
to compile GRASS (see below).
Thanks for ansver but unfortunately I always do makedistclean in grass
before compilation
addationaly I simply did:
gdalinfo /home/jarekj/grassdata/Polska/PERMANENT/cellhd/Polska
ERROR:Incompatible library version for module
Here is the problem
so not the GRASS but grass-gdal plugin must to be recompiled. I think it is
not intended because plugin was created for to not compile gdal everytime
grass has ben recompiled
I ecompiled plugin, it and everthing is OK
Good to know that. Perhaps report this to the plugin author (GDAL team)
if it is really a problem. I never had it.
But the issue with plugin which emerged is as follows:
r=readRAST6("Polska", plugin=FALSE)
Exporting raster as integer values (bytes=2)
[This msg indicates that the old mechanism of the R extension
is used.]
Using the current region settings...
north=804414.520000
south=137864.430000
east=865559.620000
west=180375.670000
r=1333
c=1370
100%
It is OK, my region settings are included
ra=readRAST6("Polska", plugin=TRUE)
/home/data/grassdata/Polska/PERMANENT/cellhd/Polska has GDAL driver GRASS
and has 21601 rows and 18001 columns
it is also OK because original map is rather big
next were eror due to file size
but this means that plugin ignores current region setings!
Yes. That's why I suggested to implement r.out.gdal usage
in the GRASS-R extension time ago (see this list archive,
date Sun, Jun 1, 2008 at 9:40 PM
subject Re: [GRASS-stats] Speedup of readVECT6() with plugin
).
There is a "plugin" switch which you set to plugin=TRUE, perhaps
it needs to be FALSE to make use of the better + faster r.out.gdal
which would solve your problem as it is resolution/region sensitive.
I didn't try the GRASS-R extension for a while. Definitely you need
a fresh version of the GRASS-R extension.
The current settings of readRAST6() will use the plugin if available (but
try to check that the regions match) when plugin=NULL. If you want to
force the use of r.out.gdal, set plugin=FALSE and useGDAL=TRUE (version
0.5-16). Please let me know if this helps.
Roger
Markus
_______________________________________________
grass-stats mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/grass-stats
--
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: [email protected]
_______________________________________________
grass-stats mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/grass-stats
