Re: [GRASS-user] Long post - Remote Sensing - Classifications

mitch wrote: GUI: I got stuck at the i.cluster window. How do I set the sampling interval values? I'm not allow to use any kind of character but numbers...how do I differentiate row and column value? http://n2.nabble.com/file/n2369388/sampling.png If I leave 1 value I get this error:

[GRASS-user] problem with export of raster data

Hello I try to export a raster integer map whose values range from - to 5880712. How can i specify that i want integer 4 bytes and not integer 2 bytes (it makes integer 2 bytes)?? Thank you. Stéphanie ___ grass-user mailing list

[GRASS-user] problem with r.surf.idw

Dear all, I want to interpolate a raster map that contains real values. I KNOW the values are real because I output the raster values with r.out.ascii command and the file shows real values. The problem is when I interpolate the raster with the r.surf.idw function and output the interpolated

Re: [GRASS-user] Invert values of raster image

Thanks Moritz, r.recode did exactly what I needed. much appreciated Wes Moritz Lennert mlenn...@club.worldonline.be 02/23/09 1:02 PM On 23/02/09 11:16, Wesley Roberts wrote: Dear list. I have a raster file with values coded in 8 bit grey scale 0-255. I would like to invert the raster

Re: [GRASS-user] problem with export of raster data

On Mon, Feb 23, 2009 at 12:15 PM, FAROUX STEPHANIE stephanie.far...@meteo.fr wrote: Hello I try to export a raster integer map whose values range from - to 5880712. How can i specify that i want integer 4 bytes and not integer 2 bytes (it makes integer 2 bytes)?? If you export with

[GRASS-user] problem in projection of shape files

hi I have a shape file which I have to import in GRASS. Shape file is consists of a shape file, a dbf file and a prj file. The prj file has following information. PROJCS[BTM, GEOGCS[GCS_Everest_1830, DATUM[D_Everest_1830, SPHEROID[Everest_1830,6377299.36,300.8017]], PRIMEM[Greenwich,0.0],

[GRASS-user] OSGeo GRASS GIS Report 2008

Dear Community, we are supposed to complete our GRASS GIS Report 2008 for OSGeo, please help to expand the draft: http://wiki.osgeo.org/wiki/GRASS_GIS_Report_2008 thanks Markus ___ grass-user mailing list grass-user@lists.osgeo.org

Re: [GRASS-user] problem in projection of shape files

I would use ogr2ogr http://www.gdal.org/ogr2ogr.html from GDAL to reproject using a proj4 string. For example to wgs84: ogr2ogr -s_srs +proj=tmerc +lat_0=0 +lon_0=90 +k=0.9996 +x_0=50 +y_0=-200 +a=6377276.345 +b=6356075.41314024 +units=m +no_defs -t_srs wgs84 out.shp in.shp -Jamie On

Re: [GRASS-user] problem in projection of shape files

On Mon, Feb 23, 2009 at 10:19 PM, Zahid Parvez grassgisbanglad...@gmail.com wrote: hi I have a shape file which I have to import in GRASS. Shape file is consists of a shape file, a dbf file and a prj file. The prj file has following information. PROJCS[BTM, GEOGCS[GCS_Everest_1830,

[GRASS-user] Grass module to use to create a bounding box

Hi List I have a raster and a vector layer but would want to limit the analysis to the bounding box of the vector layer - how do I accomplish this. Is there a vector module to create a vector bounding box (v.*). Thanks -- Sent from my mobile device Sindile Bidla

Re: [GRASS-user] Grass module to use to create a bounding box

You should be able to set the region to the vector layer and then your set. You plan to do the analysis on the raster, correct? John On 2/23/09, Intengu Technologies sindile.bi...@gmail.com wrote: Hi List I have a raster and a vector layer but would want to limit the analysis to the bounding

[GRASS-user] Re: Grass module to use to create a bounding box

Yes analysis on the raster - how do I do that John as I have a region defined already, which is larger than the extent of the vector. On 2/24/09, John C. Tull john.t...@wildnevada.org wrote: You should be able to set the region to the vector layer and then your set. You plan to do the analysis

[GRASS-user] v.external does not create vector layer

Hello, I am running GRASS 6.3.0 on Linux. I would like to use a postgis table as a read only vector layer in GRASS. One time I had v.external doing more than it does now. Here is a typical execution: # v.external 'dsn=PG:host=localhost user=postgres dbname=spatial_db' output=gpxpints_pg

Re: [GRASS-user] problem in projection of shape files

Zahid Parvez wrote: I have a shape file which I have to import in GRASS. Shape file is consists of a shape file, a dbf file and a prj file. The prj file has following information. I will be very grateful if anyone could help me to find the ESPG code and any other way to re-project the

Re: [GRASS-user] r.info doesn't print out all category values

William Hudspeth wrote: I have used to r.average to calculate mean pixel values by county. This involved converting the county vector layer to a raster, then using the county raster layer as the base in r.average. So far so, good. The r.average routine does what I want, but the resultant

[GRASS-user] Problem using i.cluster on GRASS GIS 6.4.0RC3

I get the following error when using i.cluster: ERROR: Unable to create report file (null) This is how I wrote the commands i.group group=lsat1 subgroup=lsat1

Re: [GRASS-user] problem with r.surf.idw

Alberto Pettazzi wrote: I want to interpolate a raster map that contains real values. I KNOW the values are real because I output the raster values with r.out.ascii command and the file shows real values. The problem is when I interpolate the raster with the r.surf.idw function and output