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QGIS is a cross-platform GIS application licensed under the GNU General Public License.
1
vote
Can I Combine Areas in Quantum GIS?
You can do it in QGIS with the ftools plugin. Go to Plugins->Fetch Python Plugins and search for ftools.
EDIT:
The ftools plugin ship with QGIS; it just needs to be enabled in the Plugins-menu. …
1
vote
Analyse spatial data and extract results in tabular form in QGIS
Assuming both layers are vector layers (as opposed to raster, which pixelates when zoomed close), I would do an intersect between the two, found under Vector->Geoprocessing Tools. This creates a new l …
36
votes
Accepted
Cropping Shapefiles in QGIS?
In the parlance of QGIS, it sounds like you are after Vector->Geoprocessing Tools -> Clip. …
8
votes
Total of attribute field of point layer per polygon layer
In qgis parlance, you can do a couple of things:
Points in polygon, assigning count of points to polygon (but this would not retain categories of the point layer, so you will probably rather
join based …
4
votes
0
answers
1k
views
Ubuntu 14.04 Another ImportError: No module named qgis.core
data
ii qgis-plugin-globe 2.4.0-0trusty3 amd64 OSG globe plugin for QGIS
ii qgis-plugin-globe-common 2.4.0-0trusty3 all OSG globe plugin for QGIS - architecture-independent data
ii qgis-plugin-grass … of data providers to QGIS
ii qgis-providers-common 2.4.0-0trusty3 all collection of data providers to QGIS - architecture-independent files …
0
votes
0
answers
51
views
Couldn't load PyQGIS in QGIS 2.2 on Ubuntu 14.04 [duplicate]
My QGIS version is 2.2 from the official repository (not ubuntugis). … I am not sure where the qgis package should be located--it may be just a pythonpath issue, but it may be an API version issue with underlying dependencies, although sip does seem to be fine now. …
20
votes
2
answers
819
views
Accessing existing instance of QGIS in stand-alone Python script
For my own data analysis pipeline, I am running a split screen setup with IPython notebooks on one side, generating variables from source data, pushing them to a CSV file which QGIS then reads/joins to … I would like to push the control of the running instance of QGIS to the ipython notebook, in effect allowing a super quick calculation/visualization cycle. …