Re: [GRASS-user] d.out.file in wxpython?
Hi Hamish, thank you, yes, I tried the export button but the .tif or .png file has a bad resolution and if you want to export a topographic map it is not readable. This happens also if the region resolution is high (1 m) and in the display monitor the display is good enough to read heights and houses names (it is a 1:10.000 scale map). Is there a way to control the output image resolution? cheers Francesco Hamish wrote: Francesco wrote: I am also trying to export a display. I found d.out.file was great as it could export also as geotiff. Is it planned for it to be also in wxpython new gui? No, due to the different display driver used it is not possible. But the map display canvas has a save image button, which is next to the printer button. (devs: can we set the default for that to PNG?) Hamish ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] ERROR mapset mapname not found
Hi all, I have a problem with setting the mapset access for one mapset. All other mapsets can be accessed without problems and from different mapsets. I get: --%-- ERROR mapset mapname not found --%-- I already checked the folders, but I cannot find any abnormalities. What could it be? Thanks in advance for ideas, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] ERROR mapset mapname not found
Could this be a permission / ownership problem? On Tue, Mar 30, 2010 at 5:37 AM, Achim Kisseler a...@jupiter.uni-freiburg.de wrote: Hi all, I have a problem with setting the mapset access for one mapset. All other mapsets can be accessed without problems and from different mapsets. I get: --%-- ERROR mapset mapname not found --%-- I already checked the folders, but I cannot find any abnormalities. What could it be? Thanks in advance for ideas, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] ERROR mapset mapname not found
Some more details: I'm using grass65svn, fresh compiled on a kubuntu 64bit. The mapset I cannot access is one of 7. From the one I can connect to the others, but not the other way around. Could it be that the mapset is locked? If yes, where can I find out and how can I change that? The folder has the same permissions as the others. ?? Achim On 30.03.2010 10:37, Achim Kisseler wrote: Hi all, I have a problem with setting the mapset access for one mapset. All other mapsets can be accessed without problems and from different mapsets. I get: --%-- ERROR mapset mapname not found --%-- I already checked the folders, but I cannot find any abnormalities. What could it be? Thanks in advance for ideas, Achim ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] advice on interpolation
Hi, I have an ASTER GDEM (Latlong, 30 m resolution, from NASA web site) imagery. I want to produce 10m res DEM from it. Here is what I have done and what my problem is. I really appreciate suggestions. - I reprojected the imagery into a UTM location (using the 'nearest' method), - Using 'g.region', I set my region to match the original DEM - I set my computational extents from the display, - then, I sampled 50% of the original imagery (in r.random) and created a vector map (it took long time to do this and it has around 5 million points in it), - I set the resolution to 10 meters using 'g.region', - then, using 'v.surf.rst', I tried to make a new DEM -10m resol- from the sampled vector map and masking the operation with the original -30m- DEM. I do not change the default settings and I use a smoothing parameter of '.1' and i use the value column from the vector map for approximation in the process. I get a lot of error messages during interpolation, like; G_ludcmp() failed! n=0 taking too long to find points for interpolation--please change the region to area where your points are. Continuing calculations... I am not sure but may be my region settings is wrong (i.e., too wide) although I used the imagery to set them. I never waited for interpolation to run completely. Thank you for suggestions! -- BÜLENT ARIKAN School of Human Evolution and Social Change Arizona State University Tempe - AZ 85287-2402 ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] advice on interpolation
On Tue, 30 Mar 2010, Bulent Arikan wrote: - Using 'g.region', I set my region to match the original DEM Bulent, Do you use the '-a' (alignment) option on g.region? You'll often get errors if an edge does not exactly line on the region's edge. This option removes this source of potential errors. Rich ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] GRASS temporary files and removing mapsets?
Folks: I'm getting close to finishing up a generic code that sends any given raster command to gridengine for parallel processing (I'll post it as soon as its ready for testing), but I had a couple of quick question on GRASS standards: 1) For a given mapset, is there a directory within it that is designed for temporary, non-geospatial files (e.g. text parameter files)? 2) Is there an official way to remove a mapset from GRASS short of rm -rf /pathto/mapset)? Thanks! Would anyone be interested in testing out the code once its done? If so, send me a message. You'll need to get gridengine installed (or have access to a working gridengine server). I got it installed in about 2 minutes on a debian system by just downloading the binaries and running the install scripts that come with it (I had NO luck getting the debian package via apt-get working, mind you). --j ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] GRASS temporary files and removing mapsets?
Jonathan Greenberg wrote: I'm getting close to finishing up a generic code that sends any given raster command to gridengine for parallel processing (I'll post it as soon as its ready for testing), but I had a interesting.. couple of quick question on GRASS standards: 1) For a given mapset, is there a directory within it that is designed for temporary, non-geospatial files (e.g. text parameter files)? see $MAPSET/.tmp/, G_tempfile(), and g.tempfile and perhaps a python helper funtion too. clean it up with $GISBASE/etc/clean_temp 2) Is there an official way to remove a mapset from GRASS short of rm -rf /pathto/mapset)? No. (the startup gui has a button to do it, but I guess you mean something scriptable) Thanks! Would anyone be interested in testing out the code once its done? If so, send me a message. You'll need to get gridengine installed (or have access to a working gridengine server). I got it installed in about 2 minutes on a debian system by just downloading the binaries and running the install scripts that come with it (I had NO luck getting the debian package via apt-get working, mind you). what version of debian? is there a deb bug #? Hamish ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Newbie... Locations, Projections, Regions, choices? (long)
All, I need to create 6 regional maps of the continental U.S., north and south by west, central, and east. My first thought was to create 7 locations (one for the entire continental US) but my second thought was to create just one location with the default region as the entire continental US and 6 other regions. Is this sound logic? First I downloaded the States data from the National Atlas. I then created a latitude - longitude location and imported the shape file excluding Alaska, Hawaii, Puerto Rico, and the Virgin Islands. g.proj -p -PROJ_INFO- name : Latitude-Longitude datum : wgs84 towgs84: 0.000,0.000,0.000 proj : ll ellps : wgs84 -PROJ_UNITS unit : degree units : degrees meters : 1.0 g.region -p projection: 3 (Latitude-Longitude) zone: 0 datum: wgs84 ellipsoid: wgs84 north: 49N south: 25N west: 125W east: 67W nsres: 0:00:30 ewres: 0:00:30 rows: 2880 cols: 6960 cells: 20044800 The map displays fine but I want to change the projection to Albers Equal Area or Lambert Conformal Conical since it is such a large area. So I created a new location: aeaConUS with one caveat. It said the eastern value had to be larger than the western value so I (perhaps wrongly) used 125 for the western boundary and 67 for the eastern. Using the GUI selected the ³VectorDevelop mapReproject vector² menu item and selected the vector from the above location. Here is what the new location and default region looks like: g.proj -p -PROJ_INFO- name : Albers Equal Area datum : wgs84 towgs84: 0.000,0.000,0.000 proj : aea ellps : wgs84 a : 6378137.00 es : 0.0066943800 f : 298.2572235630 lat_0 : 23.00 lat_1 : 29.50 lat_2 : 45.50 lon_0 : -96.00 x_0: 0.00 y_0: 0.00 -PROJ_UNITS unit : mile units : miles meters : 1609.344000 g.region -p projection: 99 (Albers Equal Area) zone: 0 datum: wgs84 ellipsoid: wgs84 north: 49 south: 25 west: -125 east: -67 nsres: 0.05 ewres: 0.05 rows: 480 cols: 1160 cells: 556800 When I first try to display this map, nothing is displayed unless I select ³Zoom display to selected map² at which point my nice Albers map gets displayed. Or I can ³zoom out² about 20 times to make the Albers map start showing up near the top of the screen. Obviously I¹m doing something wrong here but I¹m not sure if its the units (meters vs miles) or something more fundamental. Drowning in a sea of GRASS and loving it! Thanks for any suggestions, Randy ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] problem with v.out.ogr pgsql
Hi all, I'm trying to export a polygon from GRASS to postgis and the command I'm using is like this v.out.ogr -c input=poly...@mapset type=area dsn=PG:host=localhost dbname=postgis user=users password=users format=PostgreSQL but I always get ERROR 1: AddGeometryColumn failed for layer poly...@mapset, layer creation has failed. ERROR: Unable to create OGR layer The database is spatially enabled and the user has the right permissions to write in it. Didn't had much more success with v.out.ogr.pg.py has the error message is the same. Any hint? thanks in advance -- Giovanni -- ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
