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bio website courses.neteler.org/blog
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visits member for 4 years, 3 months
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21h
comment Intermittent multi-threading in Grass 7?
Thanks! BTW: we have developed a small test case which known results which could be used also for other software. It will be shipping soon with the source code.
1d
revised Problem installing r.hydrodem with g.extension in GRASS 7.0.0svn (r61585M) on mac OSX 10.10.1
reworded a bit
1d
comment Problem installing r.hydrodem with g.extension in GRASS 7.0.0svn (r61585M) on mac OSX 10.10.1
I fixed it in Addons. Hence, you need to simply reinstall the addon.
1d
comment Intermittent multi-threading in Grass 7?
You don't need to trust my answers but we spent months on bugfixing the code. There was a reason for it.
2d
comment Intermittent multi-threading in Grass 7?
It has also been updated in GRASS GIS 6.4.4. See trac.osgeo.org/grass/wiki/Release/6.4.4-News#Majormodulechanges . I understand that the loss of parallelism is annoying but at least you get results which are comparable to Fragstats, other software, and manual computation. Before this was not necessarily the case and sometimes the results got corrupted (AFAIK broken memory management in r.li which is got fixed). In GRASS GIS we insist on quality, i.e. correct results and reliable computations!
Nov
24
answered Problem installing r.hydrodem with g.extension in GRASS 7.0.0svn (r61585M) on mac OSX 10.10.1
Nov
24
answered Intermittent multi-threading in Grass 7?
Nov
21
comment Only run r.neighbors if cell meets criteria
See also "r.neighbors treating NULL values" here: lists.osgeo.org/pipermail/grass-user/2014-October/071011.html
Nov
21
comment Looking for guidance to create a hydrological map with QGIS and/or GRASS
OK, I now added an example how to extract a vector river network from a DEM here: grass.osgeo.org/grass70/manuals/r.thin.html - see the screenshots therein. Note that this is way less accurate than using the r.stream tools.
Nov
21
comment How to narrow raster features to single cell width?
Ah ops, you didn't allow for GRASS GIS :-)
Nov
21
answered How to narrow raster features to single cell width?
Nov
21
answered Compute nearest points to other points using GRASS
Nov
21
comment Creating a mosaic with gdalwarp - How to deal with no data and overlap
Could you copy the command line here? Then we'd know what you exactly tried.
Nov
20
comment Looking for geodata of Europe's major roads
The choice of the second archive ("Roads ArcReader Projects") with the projection information included is working well.
Nov
20
comment Problem with projection in layer
The choice of the second archive ("Roads ArcReader Projects") with the projection information included is the best choice, thanks!
Nov
20
comment How to download products from ESA's scihub using OData protocol?
The guide seems to be available here: scihub.esa.int/twiki/do/view/DhusDemo/DhusWalkThrough
Nov
19
comment Looking for guidance to create a hydrological map with QGIS and/or GRASS
Both QGIS and GRASS GIS offer digitizers.
Nov
18
comment Looking for guidance to create a hydrological map with QGIS and/or GRASS
Mickey, you are using the wrong tool here. Look at grasswiki.osgeo.org/wiki/R.stream.*
Nov
18
comment Looking for guidance to create a hydrological map with QGIS and/or GRASS
Well, you can use r.watershed to calculate the basins. To derive streams, use the r.stream modules, see grasswiki.osgeo.org/wiki/R.stream.*
Nov
18
comment To make a map of sinkholes on grass gis
Please take a look at this page why sink filling is not needed in GRASS GIS: grasswiki.osgeo.org/wiki/…