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bio website courses.neteler.org/blog
location Italy
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visits member for 4 years, 10 months
seen Jun 23 at 22:54

Jun
22
comment Raster Not Loading into Map Display - GRASS
If you can, please consider updating to GRASS GIS 7. It is worth it... trac.osgeo.org/grass/wiki/Grass7/NewFeatures - just to exclude problems which have been solved in GRASS GIS 7.0.
Jun
22
comment Convert manual colored maps to vector
... like this you can make it a "multi-channel" classification (use the RGB viewer to see it in colors but for classification you want the channels separately).
Jun
22
comment Transforming aspect values in order to use them in multiple regression models
Yes, the formula is almost the same - consider to write it as a single r.mapcalc call using the eval() function which allows to concatenate several equations.
Jun
20
comment How to animate raster time series using open-source GIS?
For the record: GRASS GIS 7 comes now with a full temporal GIS framework, see grass.osgeo.org/news/44/15/GRASS-GIS-7-0-1-RC1 (animation: grass.osgeo.org/uploads/images/…)
Jun
15
comment Raster Not Loading into Map Display - GRASS
You say "it fails" but how?
Jun
9
comment Steiner tree problem: Optimal routes for Fibre planning on road network
Did you use GRASS GIS 7 for this? It comes with reduced memory footprint and more: trac.osgeo.org/grass/wiki/Grass7/NewFeatures
Jun
4
comment Simulate water runoff to get water height over each pixel of DEM
The r.slope.aspect output should not be empty, please see grasswiki.osgeo.org/wiki/Computational_region#FAQs for setting the computational region properly.
Jun
3
comment Simulate water runoff to get water height over each pixel of DEM
For an general overview, see grass.osgeo.org/grass70/manuals/topic_hydrology.html
Jun
3
comment Simulate water runoff to get water height over each pixel of DEM
I took liberty to change the link to the current r.topmodel manual page. At bottom there is a reference to a more detailed manual, see idea.isnew.info/grass_gis/r.topmodel | As an alternative, see also grass.osgeo.org/grass70/manuals/r.sim.water.html
Jun
3
revised Simulate water runoff to get water height over each pixel of DEM
URL updated to latest stable version on main site
Jun
2
comment Can GRASS compute the line graph representation of an input graph?
This question is probably better posted in the grass-dev mailing list...
Jun
1
answered Grass r.out.gdal, wrong values when importing to QGis
May
31
comment GRASS make local relief error
Right, on Windows things are different. According to grasswiki.osgeo.org/wiki/…... you probably need to use a 64bit version of winGRASS 7.
May
31
revised Creating custom projections with Proj4
fixed outdated PROJ4 url
May
29
answered How to combine the content of several mapsets into one new mapset in GRASS.?
May
28
answered GRASS make local relief error
May
25
comment GRASS GIS : ScriptError : Unable to fetch interface description for command 'd.rast'
I see - they should ship at least GRASS GIS 6.4.4...
May
24
answered Calculate cells from which the feature would be visible above the skyline (horizon)
May
24
comment How to merge two rasters when are on the same place
Do you want to visually blend them (r.blend) or truely merge the values? If the latter, what if both have a pixel value in a certain position?
May
24
comment GRASS GIS : ScriptError : Unable to fetch interface description for command 'd.rast'
Can you consider to update your installation? GRASS GIS 6.4.3 is rather old (latest stable is GRASS GIS 7.0.0, see grass.osgeo.org/download)