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Results tagged with grass-gis
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user 6853
GRASS GIS (Geographic Resources Analysis Support System) is a free, open source geographical information system (GIS) specialized in handling raster, topological vector, image processing, and graphic data. GRASS GIS is a high performance analytical GIS and remote sensing with focus on modularity. Users can process both day-to-day data as well as massive time series.
4
votes
3
answers
181
views
Is there a workaround for GRASS i.maxlik 'class' being a keyword in Python?
I am running i.maxlik in python - attempting to automate a processing chain.
I use the command:
grass.run_command('i.maxlik', group= group, subgroup=subgroup, class='classification', sigfile = sigfil …
- 637
1
vote
1
answer
459
views
Problem opening GRASS GUI: libgeos-3.3.6.so: cannot open shared object file:
I have been using GRASS to process some Landsat imagery but very recently, and as far as I am aware - after having done nothing different or changing the settings, I am trying to use GRASS and on star …
- 637
11
votes
3
answers
28k
views
Calculating average value of raster within polygons
I am using the GRASS plugin in QGIS. I am trying to calculate the average value of a raster dataset within a set of polygons.
I have created a new mapset and have imported both the vector and raster …
- 637
1
vote
1
answer
186
views
GRASS i.landsat.toar returns empty raster
I am trying to use the GRASS module i.landsat.toar.
Currently the files created are empty and it spits out:
So it seems that it is not picking up something? The location is set to the extent of t …
- 637