Re: [GRASS-user] r.cost.rast Problem with output raster map of cumulative cost

On Tue, Feb 17, 2015 at 6:36 PM, Paul Quéré paul.que...@gmail.com wrote: Hi everyone, I have a problem on output raster map of cumulative cost when running the r.cost.rast algorithm. the resolution of Output raster is 5 m. Or the resolution of my input raster ( cost raster and raster of

[GRASS-user] r.cost.rast Problem with output raster map of cumulative cost

Hi everyone, I have a problem on output raster map of cumulative cost when running the r.cost.rast algorithm. the resolution of Output raster is 5 m. Or the resolution of my input raster ( cost raster and raster of starting points) is 1 m. I cannot figure out how the resolution can be diffrent

[GRASS-user] sampling points in a grid

Hi, I have a vector of points. According to a regular grid, I need to (randomly) sample a certain number n of these points in each cell of the grid. Such number n is given in a column of the attribute table of the grid. How would you do this? I have half idea to play with the coordinates and

Re: [GRASS-user] sampling points in a grid

Margherita, Actually, my approach with be little changed either way; without know of a better GRASS-only approach, the kind of thing I have done is to: (1) write-out to a text file for all grids x, y, value (2) index the lines, producing, id, x, y, value (3) in R randomly sample the index (4)

Re: [GRASS-user] sampling points in a grid

On Tue, Feb 17, 2015 at 4:49 PM, Margherita Di Leo direg...@gmail.com wrote: Hi, I have a vector of points. According to a regular grid, I need to (randomly) sample a certain number n of these points in each cell of the grid. Such number n is given in a column of the attribute table of the

Re: [GRASS-user] can not install addons with g.extension

Robert Nuske wrote: I have added py extension in `rules` file [1] and requested for the new build. Should be available in 10min. Thanks for the fix. It already percolated into the ubuntu package grass70 Version: 7.0.0+1svn64634~ubuntu14.04.1 g.extension fails now because it can

Re: [GRASS-user] [GRASS-dev] problem in ubuntu package (ppa:grass-devel) was: can not install addons with g.extension

On Tue, Feb 17, 2015 at 6:03 AM, Robert Nuske rnu...@gwdg.de wrote: Hi g.extension from grass70 (ppa:grass-devel) still fails. [...] Traceback (most recent call last): File /usr/lib/grass70/tools/g.html2man.py, line 5, in module from html import HTMLParser, HTMLParseError

[GRASS-user] FOSS4G-Europe 2015 and GRASS GIS workshop

Dear GRASS developers and users, we would like to see a GRASS GIS workshop at FOSS4G-Europe [1]. Is anyone planning to summit one? If yes, we can provide some support. If not, we can submit and prepare one but we need some support starting with a specific topic of the workshop. With help of other

[GRASS-user] Windows r.mapcalc crash

Hi, I am having trouble running r.mapcalc from my osgeo4w installation in GRASS 7. It quits with the following error: ERROR: G_calloc: unable to allocate 173*1 bytes of memory at lib/gis/flate.c:319 The region is Res: 25 Rows: 160 Cols: 160 The grass gis installation is from yesterday. The PC

Re: [GRASS-user] [GRASS-dev] FOSS4G-Europe 2015 and GRASS GIS workshop

Hi, In Como I would love to attend to a workshop on Write your own Python module for GRASS GIS and on PyGRASS! Cheers, Javier On Tue, Feb 17, 2015 at 7:21 PM, Vaclav Petras wenzesl...@gmail.com wrote: Dear GRASS developers and users, we would like to see a GRASS GIS workshop at

[GRASS-user] problem in ubuntu package (ppa:grass-devel) was: can not install addons with g.extension

Hi g.extension from grass70 (ppa:grass-devel) still fails. [...] Traceback (most recent call last): File /usr/lib/grass70/tools/g.html2man.py, line 5, in module from html import HTMLParser, HTMLParseError ImportError: No module named html [...] GRASS Version: 7.0.0+1svn64647~ubuntu14.04.1