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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. …
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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 …
ako's user avatar
  • 1,984
36 votes
Accepted

Cropping Shapefiles in QGIS?

In the parlance of QGIS, it sounds like you are after Vector->Geoprocessing Tools -> Clip. …
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  • 1,984
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 …
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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 …
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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. …
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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. …
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