[R-sig-Geo] SpatialGridDataFrame to netcdf grid

[Sebastian P. Luque]

On Mon, 12 Nov 2007 08:56:30 +0100,
"Edzer J. Pebesma" <edzer.pebesma at uni-muenster.de> wrote:

> On linux, you should have the netCDF driver istalled; from gdalDrivers()
> I see (on debian etch):

>         name long_name create copy 42 netCDF Network Common Data Format
> FALSE TRUE

> Then, reading the documentation of writeGDAL:

>      'create2GDAL' creates a GDAL data set from a SpatialGridDataFrame
> object, in particular to be able to save to GDAL driver formats that
> only permit copying rather than creation.

> Which is the case for net netCDF format. Might work!

Thank you, I also see the same output in gdalDrivers():

        name                               long_name create  copy
43    netCDF              Network Common Data Format  FALSE  TRUE


but then create2GDAL fails with:

R> create2GDAL(locs.sub.ts, drivername="netCDF")
Error in .local(.Object, ...) : 
  
	GDAL Error 6: GDALDriver::Create() ... no create method implemented for this format.

I don't understand this message, given that create2GDAL() should be used
when only copying is allowed for a driver (as reported by gdalDrivers(),
and ?writeGDAL).  I'm using:

---<---------------cut here---------------start-------------->---
R> sessionInfo()
R version 2.6.0 (2007-10-03) 
x86_64-pc-linux-gnu 

locale:
LC_CTYPE=en_CA.UTF-8;LC_NUMERIC=C;LC_TIME=en_CA.UTF-8;LC_COLLATE=en_CA.UTF-8;LC_MONETARY=en_CA.UTF-8;LC_MESSAGES=en_CA.UTF-8;LC_PAPER=en_CA.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_CA.UTF-8;LC_IDENTIFICATION=C

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
 [1] RColorBrewer_1.0-2 maptools_0.6-19    foreign_0.8-23     trip_1.0-4        
 [5] rgdal_0.5-20       sp_0.9-17          gstat_0.9-40       maps_2.0-38       
 [9] rcompgen_0.1-17    lattice_0.17-2    

loaded via a namespace (and not attached):
[1] grid_2.6.0  tools_2.6.0
---<---------------cut here---------------end---------------->---



-- 
Seb