Re: [GRASS-user] digitizer

2013-12-13 Thread Vaclav Petras
On Fri, Dec 13, 2013 at 6:03 AM, Martin Album Ytre-Eide < martin.album.ytre-e...@nrpa.no> wrote: > Hello all. > > I have been trying the digitizer in 6.4.2, and I am having several > difficulties. I am working with a polygon map, and as a test, I am trying > to create a polygon which I try split

Re: [GRASS-user] Cannot change directory via GRASS command console

2013-12-13 Thread Helmut Kudrnovsky
> no joy with your suggestion. When I use ls or pwd it shows I'm still in the /osgeo4w/bin directory. please provide more information about what are you doing exactly, used commands, used environment (osgeo4w shell or osgeo4w msys shell), QGIS standalone, osgeo4w bundled QGIS, etc. ... without s

Re: [GRASS-user] Extraction 3D vectors ridges/Thalweg from raster DEM ?

2013-12-13 Thread Micha Silver
On 12/13/2013 06:33 PM, image wrote: Ok thanks. And acording to you, is it possible to add the field HeightZ to my vector3D Grass generated? Yes, you do this as follows: v.db.addcol map= columns="x_coord double precision, y_coord double precision

Re: [GRASS-user] Cannot change directory via GRASS command console

2013-12-13 Thread PB
Hi Helmut - no joy with your suggestion. When I use ls or pwd it shows I'm still in the /osgeo4w/bin directory. Does it perhaps have something to do with the fact that its bundled with qgis2? PB -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Cannot-change-directory-via-

Re: [GRASS-user] Extraction 3D vectors ridges/Thalweg from raster DEM ?

2013-12-13 Thread image
Ok thanks. And acording to you, is it possible to add the field HeightZ to my vector3D Grass generated? Thanks? -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Extraction-3D-vectors-ridges-Thalweg-from-raster-DEM-tp5093957p5094181.html Sent from the Grass - Users maili

Re: [GRASS-user] Extraction 3D vectors ridges/Thalweg from raster DEM ?

2013-12-13 Thread Micha Silver
As far as I know, the shapefile format does not really support 3D vectors. On 12/13/2013 05:41 PM, image wrote: Hello, And thank you again for your help. I have a last little question. I succeed in generating with grass vector 3D. I would like now expo

Re: [GRASS-user] Extraction 3D vectors ridges/Thalweg from raster DEM ?

2013-12-13 Thread image
Hello, And thank you again for your help. I have a last little question. I succeed in generating with grass vector 3D. I would like now export it to shapefile3D. Do you know how to do that? Thanks. -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Extraction-3D-vectors-

Re: [GRASS-user] Extraction 3D vectors ridges/Thalweg from raster DEM ?

2013-12-13 Thread Micha Silver
Hi On 12/13/2013 01:14 PM, image wrote: Hello, Thank you very much for your reply. I made some tests following your recommandations. For information, the surface of my raw raster DEM is 15.000 km². Resolution : 1 pixel X & pixel Y = 30 meters. (SRID 2154 UTM

Re: [GRASS-user] Extraction 3D vectors ridges/Thalweg from raster DEM ?

2013-12-13 Thread image
Hello, Thank you very much for your reply. I made some tests following your recommandations. For information, the surface of my raw raster DEM is 15.000 km². Resolution : 1 pixel X & pixel Y = 30 meters. (SRID 2154 UTM). 1/"r.watershed": the main input parameter seems to be the minimum size for e

[GRASS-user] digitizer

2013-12-13 Thread Martin Album Ytre-Eide
Hello all. I have been trying the digitizer in 6.4.2, and I am having several difficulties. I am working with a polygon map, and as a test, I am trying to create a polygon which I try split into four smaller polygons. First I divide it in half and then a divide one of the new halves in two. Aft