file format error with R and GRASS61
On Jan 19, 2006, at 3:06 PM, Roger Bivand wrote:
On Thu, 19 Jan 2006, Kirk R. Wythers wrote:
I am trying to figure out an GDAL error message about grass file not being a supported format. The message is:
gmeta6 <- gmeta6() fname <- paste(gmeta6$GISDBASE, gmeta6$LOCATION_NAME,
+ "PERMANENT", "cellhd", "soils.ph", + sep="/")
soilsph_GDAL <- read.GDAL(fname)
Error in .local(.Object, ...) :
GDAL Error 4: `~/grassdata/spearfish60/PERMANENT/cellhd/
soils.ph' not recognised as a supported file format.
If r.out.gdal works for you on that file, then we have a problem. However, I think that your GRASS GDAL plugin is not present, so GDAL doesn't know how to read GRASS rasters natively. What does
getGDALDriverNames()
> getGDALDriverNames() [1] "VRT" "GTiff" "NITF" "HFA" "SAR_CEOS" "CEOS" [7] "ELAS" "AIG" "AAIGrid" "SDTS" "OGDI" "DTED" [13] "PNG" "JPEG" "MEM" "JDEM" "GIF" "ESAT" [19] "BSB" "XPM" "BMP" "AirSAR" "RS2" "PCIDSK" [25] "PCRaster" "ILWIS" "RIK" "GMT" "netCDF" "HDF4" [31] "HDF4Image" "PNM" "DOQ1" "DOQ2" "ENVI" "EHdr" [37] "PAux" "MFF" "MFF2" "FujiBAS" "GSC" "FAST" [43] "BT" "LAN" "CPG" "IDA" "NDF" "JPEG2000" [49] "L1B" "FIT" "RMF" "USGSDEM" "GXF" >
say within R after loading the rgdal package, or equivalently $ gdalinfo --formats
the same
from the shell prompt? If you see "GRASS" there, we have a problem, if not, please make sure the GDAL GRASS plugin
I thought I had this installed. You are talking about Frank's 1.3.1 version gdal, right? I used the config options: ./configure --mandir=/usr/local/share/man --without-python --with- threads --with -static-proj4=/usr/local --with-libtiff=/usr/local --with-geotiff=/ usr/local --w ith-jpeg=/usr/local --with-gif=/usr/local --with-png=/usr/local -- with-jasper=/u sr/local --with-pg=/usr/local/pgsql/bin/pg_config --with-mysql=/usr/ local/mysql/ bin/mysql_config --with-netcdf=/Volumes/disk1/home1/kwythers/src/ netcdf-3.6.0-p1 --with-hdf4=/Volumes/disk1/home1/kwythers/src/HDF4.2r1/hdf4-darwin - with-ogdi=/ usr/local --with-geos=/usr/local/bin/geos-config --with-grass=/usr/ local/grass-6 .1.cvs
is installed and working (one does this *after* installing GRASS. Roger
This is on grass61 and R 2.2.1 using the spearfish60 location Thanks in advance for any ideas
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-- 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: Roger.Bivand at nhh.no