Re: [GRASS-user] Vector Overlay Map Disappears in 3D View

2012-01-16 Thread Hamish
Rich wrote: > Error in startup script: couldn't fork child process: not > enough memory check your computational region with 'g.region -p'. The resolution should be set so that rows and columns do not exceed ~ 4 x 4 or so. (unless you have lots of RAM) when checking free memory with `free

[GRASS-user] m.viz.image Command Line

2012-01-16 Thread Rich Shepard
Martin, I see that you're the lead author of m.nviz.image so you're probably the best qualified to teach me the appropriate command line syntax to achieve what I need for a project. I've read the man page and tried filling in the data entry widgets in the wxGUI but keep running into errors I do

Re: [GRASS-user] Vector Overlay Map Disappears in 3D View

2012-01-16 Thread Rich Shepard
On Mon, 16 Jan 2012, Rich Shepard wrote: I must be invoking nviz incorrectly as I run out of memory with 4G on this system and 182M free. I call nviz this way: Actually, that's 1.82G free memory. I don't know why it keeps crashing on me with 2 raster maps. Rich

Re: [GRASS-user] Subtracting One Vector Map From Another

2012-01-16 Thread Rich Shepard
On Mon, 16 Jan 2012, Marcello Gorini wrote: Vectors are not my thing, but I checked the GRASS Book... maybe v.select? Marcello, I considered useing v.select but after reading the man page I wasn't sure it would do just what I wanted. Instead, I used the GUI in digitize mode to remove the st

Re: [GRASS-user] Subtracting One Vector Map From Another

2012-01-16 Thread Marcello Gorini
On Mon, Jan 16, 2012 at 10:37 PM, Rich Shepard wrote: > Somehow, my streets map also contains lines for streams. I would like to > subtract the stream lines from the street lines but do not see a module to > do this. Map algebra works well with raster maps (r.mapcalc), but what > module will allo

[GRASS-user] Subtracting One Vector Map From Another

2012-01-16 Thread Rich Shepard
Somehow, my streets map also contains lines for streams. I would like to subtract the stream lines from the street lines but do not see a module to do this. Map algebra works well with raster maps (r.mapcalc), but what module will allow me to do this with two vector maps? Rich _

Re: [GRASS-user] Vector Overlay Map Disappears in 3D View

2012-01-16 Thread Rich Shepard
On Sat, 14 Jan 2012, Hamish wrote: ... but tcl/tk nviz happily lets you load multiple rasters at once. Hamish, I must be invoking nviz incorrectly as I run out of memory with 4G on this system and 182M free. I call nviz this way: GRASS 6.5.svn (Oregon):~/grassdata/Oregon/beaver_lake > nviz

Re: [GRASS-user] Problems while installing addons. Can't find gis.h

2012-01-16 Thread Hamish
Steffen wrote: > Ps: I'm using grass 6.4.1 with ubuntu 11.11 32bit, if it > matters. Hi, the g.extension module(s) only starts to begin to work for end- users who installed from a package with the upcoming 6.4.2, due in a few days. you'll need the grass-dev package installed too. if you can't wa

[GRASS-user] Features Disappear During Vector -> Raster Conversion [SOLVED]

2012-01-16 Thread Rich Shepard
Now I need to make a raster copy of this vector map so I can either combine it with the DEM or add it as a second raster map in nviz. But, when the v.to.rast finishes running there's only 1 lake visible; all the others have disappeared. I've not been able to identify what I did incorrectly. W

[GRASS-user] Features Disappear During Vector -> Raster Conversion

2012-01-16 Thread Rich Shepard
I've been spinning my wheels and remain stuck on a solution to this problem. Guidance appreciated. There's a vector map of water bodies in the state that I clipped to the project region using v.in.region followed by v.select. This seems to work fine. Now I need to make a raster copy of thi

[GRASS-user] Problems while installing addons. Can't find gis.h

2012-01-16 Thread Steffen John
Hi List, I was trying to install the v.vect.stats add on, but i got some problems, which I wasn't able to fix with the help of the existing mailing list. First of all, I tried g.extension extension=v.vect.stats. It couldn't find any add on, because the script is using a wrong url to svn: svn

Re: [GRASS-user] It is possible delete vector elements from the command line?

2012-01-16 Thread Micha Silver
On 01/16/2012 04:51 PM, Andrés Silva wrote: Hi I have a vector with differents ecosystems, and I need to delete some of this elements. So, It is possible to delete some ecosystems of the ecosystems vector using regular expressions or sql commands? or I have t

[GRASS-user] It is possible delete vector elements from the command line?

2012-01-16 Thread Andrés Silva
Hi I have a vector with differents ecosystems, and I need to delete some of this elements. So, It is possible to delete some ecosystems of the ecosystems vector using regular expressions or sql commands? or I have to use the sequence v.extract, v.remove and v.rename? Thanks! *Andrés*

Re: [GRASS-user] Re: GRASS 6.4.2 RC3 will not load on Windows 7

2012-01-16 Thread Giovanni Manghi
> please test the next update of GRASS 6.5svn/osgeo4w tomorrow or so. Hi, I just updated my osgeo4w installation and none of the GRASS versions are starting using the menu shortcuts, not even GRASS 7 that used to work until a few days ago. cheers -- Giovanni -- __

[GRASS-user] GRASS contacts

2012-01-16 Thread Salvatore Mellino
Hi, I'm a PhD student from Italy. During this year I should spend 2-3 months abroad (in Europe). Anyone could tell me some University or Institutions that use GRASS in their research? I'm trying to use it for environmental planning. Thanks, Salvatore