[GRASS-user] v.buffer segmentation fault

2009-07-24 Thread Corrado Topi
Dear grass developers, I have a potential bug here, if everything I do is right. I have a vector calledn england. I run v.buffer input=england output=england_buffer type=area buffer=1420 and all I get is segmentation fault. P.S.: I cannot login anymore into the tracker with my ID (ct529).

Re: [GRASS-user] v.buffer segmentation fault

2009-07-24 Thread Hamish
Corrado Topi wrote: I have a potential bug here, if everything I do is right. I have a vector calledn england. I run v.buffer input=england output=england_buffer type=area buffer=1420 and all I get is segmentation fault. what version of GRASS? what operating system? can you

Re: [GRASS-user] d. commands under windows.

2009-07-24 Thread Glynn Clements
Milton Cezar Ribeiro wrote: I have tryed to use some d. series on my windows grass versions (stand alone, or compiled under msys) and I perceived that I can't do that (I am not talking about -wx, but -text and -gui). It is possible run d. series of commands under windows? Yes. But they

Re: [GRASS-user] v.buffer segmentation fault

2009-07-24 Thread Corrado
1) GRASS version: 6.3, 6.4 RC4 Operating system: Linux Kubuntu 9.04 64 bit, FC 9.0 64 bit, Linux Kubuntu 904 32 bit Which makes me assume this is a bug since the vectors are clean. Where do I get those datasets? 2) Yes On Friday 24 July 2009 11:03:03 you wrote: Corrado Topi wrote: I have a

Positive reproducibility with spearfish - Re: [GRASS-user] v.buffer segmentation fault

2009-07-24 Thread Corrado
Yes it is reproducible with spearfish: v.buffer input=landcover output=lcb distance=2 --overwrite Buffering lines... 100% Buffering areas... Segmentation fault GRASS 6.4.0RC4 (Spearfish60):~ It may be a size dependent bug. Small vectors, v.buffer works. Large vectors it does not. On Friday

[GRASS-user] Export of large vector grid

2009-07-24 Thread Wesley Roberts
Dear Grass users, I am trying to export a large vector to the shapefile format. The vector is in the form of a grid which I want to use to sample satellite data, it has 354 columns and 388 rows (in the form of a grid, each cell being 30 m by 30 m). I am working on windows and have been trying

Re: [GRASS-user] Export of large vector grid

2009-07-24 Thread Nikos Alexandris
Wesley Roberts wrote: I am trying to export a large vector to the shapefile format. Hi Wesley :-) A (silly) suggestion: load in QGIS and then use save as shapefile... :-? Maybe it'll work without errors :-) Nikos ___ grass-user mailing list

Re: [GRASS-user] Extracting non-overlapping lines

2009-07-24 Thread Dwight Needels
Hi all, Does anybody have a suggestion for subtracting the elements in one line vector from another line vector? -D On Jul 21, 2009, at 7:06 PM, Dwight Needels wrote: Hi all, I have two nearly identical line vectors, and I would like to extract the lines that differ between the two

[GRASS-user] Help needed with exporting GRASS 6.4.0 vector files

2009-07-24 Thread Thomas Adams
All: I have GRASS 6.4.0 vector maps (polygons) that I have digitized, which I need to export to ASCII with both attributes and (lat-long) boundary vertices. I need to subsequently reformat the data to a some non-standard ascii format. How do I do this? I can use db.select to easily get the

Re: [GRASS-user] Weighted Voronoi diagram

2009-07-24 Thread MORREALE Jean Roc
Thomas Wootten a écrit : Is there any way to create a Weighted Voronoi Diagram in grass? v.voronoi.* will create ordinary ones, but not weighted. Short answer : no Long answer : please have a look to this interesting thread -

[GRASS-user] r.watershed crashing grass.

2009-07-24 Thread Milton Cezar Ribeiro
Dear all, I am trying run a r.watershed command with one 7200x7200 DEM map. But after one day running, the system crash without finish the output generation. Please, see below (2 warnings before crash). By the way I am running grass 6.4.0 SVN (rc4?) under Msys/Vista on a 6Gb/64 bits machine.

Re: [GRASS-user] r.watershed crashing grass.

2009-07-24 Thread stephen sefick
Do you have enough hard disk space? I have had a problem running r.watershed on very large datasets (my computer is much more modest). I have had luck resampling the data to a larger resolution and then running r.watershed. r.watershed crashes at 10m res but will run just fine at 50m. 1GB RAM.

Re: [GRASS-user] r.watershed crashing grass.

2009-07-24 Thread Milton Cezar Ribeiro
Hi Stephen, Thanks for your reply. I thank the disk space is not problem because I still have 100Gb free. What was the dimension (row and columns) that you got success?! May be 7200x7200 is to large. (?) Cheers milton 2009/7/24 stephen sefick ssef...@gmail.com Do you have enough hard disk

Re: [GRASS-user] r.watershed crashing grass.

2009-07-24 Thread stephen sefick
I will look tomorrow, but I think it was about 1000x1000. hth Stephen Sefick On Fri, Jul 24, 2009 at 9:47 PM, Milton Cezar Ribeiromiltinho.astrona...@gmail.com wrote: Hi Stephen, Thanks for your reply. I thank the disk space is not problem because I still have 100Gb free. What was the