[GRASS-user] Georrectify and nearest neighbor

My name is Jenny Turner and I've been using georrectify graphical module in WxpyTHon GRASS6.4. I saw a video of the proceeding but I would like to know if there is a description or a tutorial of what to do and how. I have understand what I have to do but I need to explain to other persons

Re: [GRASS-user] calculating road density

Thanks! I'm trying this route. On Wed, May 26, 2010 at 11:18 PM, Dylan Beaudette dylan.beaude...@gmail.com wrote: v.rast.stats, So far its running for 5 days on my whole region! No segfault error so far. :) -- cheers, maning -- Freedom is

[GRASS-user] Using v.distance between two identical layers...

Hi, do you know if it's possible to use v.distance command when for and to layers are the same layer ? I have a layer describing ecological areas of interest and I want to qualify spatial relation between all patches. I want to identify and calculate shortest relation between all my

Re: [GRASS-user] modis data

On 06/01/2010 09:10 PM, Hamish wrote: bharath s wrote: iam working on modis data (mydo9q1 250 m) using grass (gis) software. i want to overlay google earth boundary for southindia.. after geocorrection on modis data... but the boundaries are not matching. please help me to solve

[GRASS-user] Using Vector Digitizer in Windows

Hi I'm using Vector Digitizer in MS-Windows (Tcltk since WxGUI is not available) and I wanted to know How can I put an image as a background? I am at v.digit form and I cannot see any field regarding that Thanks Kim ___ grass-user mailing list

[GRASS-user] get coords from a raster

Hi List, I'm trying to make a script to calculate the slope along a path. I want to calculate the slope as the average of cell per cell slope. For my purpose I found r.profile to produce the input file for my script, but I have to give it the coordinates of the points. As I have a raster and not

Re: [GRASS-user] get coords from a raster

Christian, thank you for answering. My problem is that I don't want to use the slope map to get slope, bu i want to calculate it as the ratio between the difference of the elevation and the distance between two given points (pixels). To do that, I need to get the coordinates of the points as a

[GRASS-user] huff model

hello all, saw some of you to know if there is any implementation of huff model for grass gis or failing that a script on it in Open Source software arcgis but I do not want to work with such libraries. thanks for your answers Ricardo Rodríguez Univalle

[GRASS-user] surface cost

hello all, I have a question that can be evaluated as sustainable urban accessibility of a zone map go through friction, but the only difference to the examples in the book that the analysis I want to do is not over in many respects an attractive location but several points of interest between

Re: [GRASS-user] Using Vector Digitizer in Windows

On Wed, Jun 2, 2010 at 6:10 PM, Kim Besson kimbesson1...@gmail.com wrote: Hi I'm using Vector Digitizer in MS-Windows (Tcltk since WxGUI is not available) and I wanted to know How can I put an image as a background? I am at v.digit form and I cannot see any field regarding that There should

Re: [GRASS-user] get coords from a raster

On Wed, Jun 2, 2010 at 6:50 PM, Margherita Di Leo direg...@gmail.com wrote: Christian, thank you for answering. My problem is that I don't want to use the slope map to get slope, bu i want to calculate it as the ratio between the difference of the elevation and the distance between two given

Re: [GRASS-user] calculating road density

On Wed, Jun 2, 2010 at 1:24 PM, maning sambale emmanuel.samb...@gmail.com wrote: Thanks!  I'm trying this route. On Wed, May 26, 2010 at 11:18 PM, Dylan Beaudette dylan.beaude...@gmail.com wrote: v.rast.stats, So far its running for 5 days on my whole region!  No segfault error so far. :)

Re: [GRASS-user] huff model

On Wed, Jun 2, 2010 at 7:21 PM, Ricardo Rodríguez ricardorodo...@gmail.com wrote: hello all, saw some of you to know if there is any implementation of huff model for grass gis or failing that a script on it in Open Source software arcgis but I do not want to work with such libraries. Do you

Re: [GRASS-user] get coords from a raster

Markus, Thank you. I'm pretty sure this is the way. So I run: r.to.vect input=mainchannel output=points feature=point --o v.to.db map=points option=coor col=x,y (like the man page suggests) but I get a number of errors like: Column 'x' not found Error in db_execute_immediate() where am I

Re: [GRASS-user] get coords from a raster

On Wed, Jun 2, 2010 at 10:07 PM, Margherita Di Leo direg...@gmail.com wrote: Markus, Thank you. I'm pretty sure this is the way. So I run: r.to.vect input=mainchannel output=points feature=point --o v.to.db map=points option=coor col=x,y (like the man page suggests) but I get a number of

Re: [GRASS-user] Using v.distance between two identical layers...

devaux wrote: do you know if it's possible to use v.distance command when for and to layers are the same layer ? I have a layer describing ecological areas of interest and I want to qualify spatial relation between all patches. I want to identify and calculate shortest relation between all

Re: [GRASS-user] Select random cells from map

António wrote: I need to randomly select non-null cells from a given map. I tried r.random.cells but I cannot define a maximum number random cells and some selected random cells are not valid values in my map. is there any other function to randomly select cells from a raster? Hamish:

[GRASS-user] In Which OS should I develop: Linux or Windows

Greetings I'm GRASS user in Linux and in MS-Windows and Now I need to start developing a few things. In which one should I start? In which GRASS is more stable and robust? Thanks best regards Katrin ___ grass-user mailing list