[STATSGRASS] v.variogram

[Tomas Lanczos]

> From: Roger Bivand [mailto:Roger.Bivand at nhh.no] 

> This looks as though the modification stops v.out.ogr -e from 
> working, and results in no shapefile being written. Could you 
> see what happens when you run v.out.ogr -e for your point 
> vector data? My guess is that it will fail. It may also fail

Happens this, in fact the export performs:

GRASS_INFO_WARNING(15398,1): OGR can't parse PROJ.4-style parameter string:
GRASS_INFO_WARNING(15398,1):  +proj=krovak +a=6377397.155 +rf=299.1528128
+no_defs +to_meter=1.0000000000
GRASS_INFO_WARNING(15398,1): (OGR Error code was 5)
Exporting 89 points/lines...
89 features written 


> with just v.out.ogr, because v.out.ogr tries to write a *.prj 
> anyway for shapefiles, and that may just not work following 
> the patch. Could you let me know if other OGR drivers do any better?

It's almost the same with the other drivers.

Tomas

> Roger
> 
> > Error in ogrInfo(dsn = dsn, layer = layer) : 
> > 	Cannot open file
> > Execution halted"
> > 
> > I suppose that this error occures when grass, resp. ogr is 
> reading the 
> > computed data back. Is it problem with the proj.4 style 
> itself (how is 
> > written back) or that I am using the patched proj4 (the patch was 
> > prepared by Jachym Cepicky - I guess, as the proj4 does not 
> handle the 
> > krovak projection correctly). Am I right? Do You have any 
> idea how to solve this?
> > 
> > > Apart from that, the script depends on using xpdf to view 
> pdf files, 
> > > an you don not have it installed or on your path.
> > 
> > Of course :-).
> > 
> > Thanks for any suggestion and/or advice in advance
> > 
> > Tomas
> > 
> > 
> > 
> > > Roger
> > > 
> > > > 
> > > > Loading required package: sp
> > > > Loading required package: maptools Loading required package: 
> > > > foreign Loading required package: rgdal Geospatial Data 
> > > > Abstraction Library extensions to R successfully loaded 
> Error in 
> > > > validObject(.Object) : invalid class
> > > "GridTopology" object:
> > > > cellsize has incorrect dimension
> > > > Execution halted
> > > > Done/usr/local/grass-6.3.cvs/scripts/v.variogram: line 
> 135: xpdf: 
> > > > command not found"
> > > > 
> > > > What can I do with it?
> > > > 
> > > > Note: If I tried to do kriging by the R I recognized that
> > > there is no
> > > > krige.G function for spgrass6.
> > > > 
> > > > Thank for any advice in advance.
> > > > 
> > > > Tomas
> > > > 
> > > > p.s: running Grass 6.3 cvs and R 2.3.0 on Ubuntu 6.0.6,
> > > the databaze
> > > > is PostgreSQL 8.1.3
> > > > 
> > > > _______________________________________________
> > > > statsgrass mailing list
> > > > statsgrass at grass.itc.it
> > > > http://grass.itc.it/mailman/listinfo/statsgrass
> > > > 
> > > 
> > > --
> > > 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
> > > 
> > 
> 
> --
> 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
> 
>