[GRASS-user] Re: v.select: exact meaning of disjoint operator

Hi, 2009/7/7 Moritz Lennert mlenn...@club.worldonline.be: Ok, thanks for following up on this. Should we file a bug report for the selection algorithm ? Could you give me more details on the problems with it the problem is that v.select was originally designed only for 'overlaps' operator. So

Re: [GRASS-user] more on v.net: break lines on nodes

Hi, as an explanation I draw a little picture... I like to have each line extra to have a common node on each crossing. I would to have that in order to try handling tree structures and some analysis in a database. Thanks, achim Moritz Lennert schrieb: On 03/07/09 12:10, achim wrote: Hi,

Re: [GRASS-user] v.net report - table update

On 03/07/09 11:45, achim wrote: Hallo! Is there an easy solution to insert values from v.net report into it's table? I did it external with sqlite creating a new table from a join and connected my vectormap to that. But when I eg. add a node, I don't want to redo the hole procedure.

Re: [GRASS-user] Wx-Python GUI and nViz

Hi, 2009/7/7 Edmondo Elisei edmondo.eli...@gmail.com: wxNviz,both on WIn and Linux on Linux it works (you need to configure GRASS with --with-python --with-cxx, and --with-wxwidgets). On MS Windows similarly to wxGUI vector digitizer it's not working (and probably it will be not fixed for 6.4.0

Re: [GRASS-user] more on v.net: break lines on nodes

So, I don't really see the possibility of having nodes on a network line. Could you elaborate ? I like to do something like zonal statistics on vector areas. Not with rasters, but with vectors inside. That means eg: length of all roads of a kind for every area. Or: longest road on that area

Re: [GRASS-user] more on v.net: break lines on nodes

Sorry, not very clear... They are snapped! I wanted to show that I have 1) two lines (two cats) with no common nodes on the network 2) I want the longer to be broken on the node of the longer one in order to have a common node (and three lines with three cats) achim Moritz Lennert schrieb: On

[GRASS-user] flow map in r.watershed

Hi list! In the documentation of r.watershed (grass 6.4) I found that it's possible to use the following (optional) input map: flow Input map: amount of overland flow per cell. This map indicates the amount of overland flow units that each cell will contribute to the watershed basin model.

Re: [GRASS-user] flow map in r.watershed

Hi Margharita, if you just have the information of an DEM its not necessary in nearly all cases. So just omit if you have no further information. It could be interesting if you are interested in very huge regions (like continental/long N-S distance) and you have raster cells of very different

Re: [GRASS-user] more on v.net: break lines on nodes

On 07/07/09 12:18, achim wrote: Sorry, not very clear... They are snapped! I wanted to show that I have 1) two lines (two cats) with no common nodes on the network 2) I want the longer to be broken on the node of the longer one in order to have a common node (and three lines with three cats)

Re: [GRASS-user] more on v.net: break lines on nodes

v.edit tool=break cat=CatOfTheLineToBreak coords=CoordinatesOfYourNode thresh= v.edit tool=snap cat=CatOfTheBrokenLine,CatOfOtherLine thresh You can get the coordinates of your nodes with v.to.db. Thats what I was looking for. Thank you very much, Moritz! I didn't recognized the break

Re: [GRASS-user] more on v.net: break lines on nodes

On 07/07/09 14:23, achim wrote: Sorry for complicated problem description. I am still a little confused why v.net produces such lines that no new (poly)lines begin on each node (picture). I don't think that v.net produces any lines, except for the connecting lines it creates when using

Re: [GRASS-user] r.neighbour and r.mask

Milton Cezar Ribeiro wrote: Just suppose I have a very large - and irregular - region, and that I am running r.neighbors to compute some moving windows stats. As my region is irregular, many of central pixels will be NULL. If I use r.mask, it means that when I run r.neighbours the processing

Re: [GRASS-user] r.neighbour and r.mask

I Glynn, Thanks for the reply. I was thinking (and must confess, I was wishing) that with r.mask those pixels that are outside of the mask (i.e. is NULL) can by skiped during the processing. Anyway, pretty thanks. milton 2009/7/7 Glynn Clements gl...@gclements.plus.com Milton Cezar Ribeiro

[GRASS-user] wx configure error

Hi During configure on grass 6.5 I have following error: ... checking if system supports Large Files at all... yes checking whether to use Python... yes checking for python-config... /usr/bin/python-config checking for Python.h... yes checking for swig... /usr/bin/swig checking whether to use

Re: [GRASS-user] wx configure error

Hi, 2009/7/7 Jarek Jasiewicz jar...@amu.edu.pl: checking if system supports Large Files at all... yes checking whether to use Python... yes checking for python-config... /usr/bin/python-config checking for Python.h... yes checking for swig... /usr/bin/swig checking whether to use

[GRASS-user] Wx-Mapdisplay 1 not starting on WinVista

hi, WinVista 32 Grass65-svn - self-compiled today in the osgeo4-win-tree nc-dataset region set to elevation when starting grass with the wx-gui, the MapDisplay1 is not starting with following error: Traceback (most recent call last): File c:\OSGeo4W\apps\grass\grass-6.5.svn\etc\wxpython\gui