Re: [GRASS-user] v.proj Warning

2012-06-15 Thread Markus Neteler
Hi,probably there is no mathematical definition available. What is your target projection? Markus On 6/15/12, Rich Shepard rshep...@appl-ecosys.com wrote: On Thu, 14 Jun 2012, Rich Shepard wrote: Reprojecting primitives: WARNING: pj_transform() failed: latitude or longitude exceeded limits

Re: [GRASS-user] GRASS Graphical Modeller - using loops

2012-06-15 Thread Markus Neteler
Hi Paulo, perhaps you can find some hints here: http://grass.osgeo.org/wiki/WxGUI_Modeler (note: it is a Wiki page, please feel (all) free to add more instructions to that page). Best Markus ___ grass-user mailing list grass-user@lists.osgeo.org

Re: [GRASS-user] v.in.db question

2012-06-15 Thread Micha Silver
(Returning the discussion to the maillist) On 06/15/2012 03:58 PM, Rich Shepard wrote: On Fri, 15 Jun 2012, Micha Silver wrote: Now that I think about it, I wonder how hard it would be to add to v.in.db an option to just reuse

Re: [GRASS-user] v.in.db question

2012-06-15 Thread Moritz Lennert
On 15/06/12 15:56, Micha Silver wrote: What might be even more attractive would be an option to link a GRASS vector to a DB view. This would allow updating of the data tables in the DB, and have the new values accessible from within GRASS. I tried once without success. I don't think that

[GRASS-user] importing or reading a small part of a tiff file

2012-06-15 Thread ivan marchesini
Hi, is there a simple way to import only a small part of a tiff file (by mean, for example, of a bbox)? some gdal parameter for r.in.gdal? many thanks.. Ivan -- Ti prego di cercare di non inviarmi files .dwg, .doc, .xls, .ppt. Preferisco formati liberi. Please try to avoid to send me .dwg,

Re: [GRASS-user] v.in.db question

2012-06-15 Thread Moritz Lennert
On 15/06/12 15:56, Micha Silver wrote: (Returning the discussion to the maillist) On 06/15/2012 03:58 PM, Rich Shepard wrote: On Fri, 15 Jun 2012, Micha Silver wrote: Now that I think about it, I wonder how hard it would be to add to v.in.db an option to just reuse that same table as the

Re: [GRASS-user] v.in.db question

2012-06-15 Thread Micha Silver
On 06/15/2012 05:52 PM, Moritz Lennert wrote: On 15/06/12 15:56, Micha Silver wrote: What might be even more attractive would be an option to link a GRASS vector to a DB view. This would allow updating of the data tables in the

Re: [GRASS-user] v.in.db question

2012-06-15 Thread Rich Shepard
On Fri, 15 Jun 2012, Moritz Lennert wrote: I just added that feature to trunk (r52078). Seems to work alright, but might lack some failsafe mecanisms. Please test to see if it might have any unforeseen consequences. Moritz, I run 6.5svn and am current at r52080. I'll test the revision if

Re: [GRASS-user] v.in.db question

2012-06-15 Thread Moritz Lennert
On 15/06/12 18:18, Rich Shepard wrote: On Fri, 15 Jun 2012, Moritz Lennert wrote: I just added that feature to trunk (r52078). Seems to work alright, but might lack some failsafe mecanisms. Please test to see if it might have any unforeseen consequences. Moritz, I run 6.5svn and am current

[GRASS-user] Accuracy assessment

2012-06-15 Thread Danut Mihon
Hi, I want to apply the r.kappa operator in order to perform the Accuracy assessment. The problem is that I have one GeoTIFF input as the thematic map, and the referenced input is in a .shp file. Converting the .shp file to a GeoTIFF seams to be problematic. Is there any way to use the r.kappa

Re: [GRASS-user] Accuracy assessment

2012-06-15 Thread Stefan Sylla
Hi Danut, You can import the shapefile to grass with v.in.ogr. Then u should convert the vector to a raster with v.to.rast, using the same categories as for ur image. Then you should be able to perform r.kappa. Stefan Gesendet mit BlackBerry® Webmail von Telekom Deutschland -Original

[GRASS-user] i.spectral parameter named null...

2012-06-15 Thread Daniel Victoria
Hi, I was just trying to run i.spectral and I noticed something strange. One of the parameters name is (null). This also shows on the i.spectral manual page [1], which I believe is generated automagically. Shouldn't the (null) be the east_north parameter? Thanks Daniel [1] -

[GRASS-user] Projection Confusion

2012-06-15 Thread Rich Shepard
It took a while today for me to figure out where I went off the rails importing a text file in Lat/Lon coordinates to Nevada East State Plane Coordinate System, NAD 83, US Survey Feet (epsg:3421) using cs2cs. Still, I've become confused because of the apparent switch in projection coordinate

Re: [GRASS-user] Projection Confusion

2012-06-15 Thread Hamish
Rich wrote:   It took a while today for me to figure out where I went off the rails importing a text file in Lat/Lon coordinates to Nevada East State Plane Coordinate System, NAD 83, US Survey Feet (epsg:3421) using cs2cs. Still, I've become confused because of the apparent switch in

Re: [GRASS-user] importing or reading a small part of a tiff file

2012-06-15 Thread Hamish
Ivan wrote: is there a simple way to import only a small part of a tiff file (by mean, for example, of a bbox)? some gdal parameter for r.in.gdal? There's not a way with r.in.gdal that I know of, but it is an easy job with gdal_translate to prepare a subset: -srcwin xoff yoff xsize

Re: [GRASS-user] Projection Confusion

2012-06-15 Thread Rich Shepard
On Fri, 15 Jun 2012, Hamish wrote: n.b. lat,lon is y,x; note also the use of the +proj=latlong alias instead of the true +proj=longlat setting, Hamish, Ah, I hadn't noticed this when I first used the cs2cs script. I'll make that change. ... and finally if you look at the option

Re: [GRASS-user] i.spectral parameter named null...

2012-06-15 Thread Hamish
Daniel wrote: I was just trying to run i.spectral and I noticed something strange. One of the parameters name is (null). This also shows on the i.spectral manual page [1], which I believe is generated automagically. Shouldn't the (null) be the east_north parameter? .. [1] -