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Results tagged with qgis
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user 4091
QGIS is a cross-platform GIS application licensed under the GNU General Public License.
2
votes
1
answer
534
views
Typecast from circularstring to polygon in postgis
I am doing so because CircularString Datatype is not supported by QGIS and i have to create a circle or ellipse, and it should get display on QGIS map canvas. …
- 1,862
4
votes
1
answer
9k
views
How to change the the style of a vector layer programmatically? [duplicate]
I am using Python to customise QGIS. …
- 1,862
5
votes
2
answers
8k
views
How to refresh QgsMapcanvas?
I am using Qgis 1.7 and I want to refresh the mapcanvas
so I am using refresh() function of QgsMapcanvas class
and Nothing is happening to the Map Canvas.
I am using Python for customizing …
- 1,862
10
votes
1
answer
2k
views
How to add features to a PostGIS layer using Quantum GIS?
I am able to call the PostGIS layer into QGIS but i am unable to add feature to it. …
- 1,862
-1
votes
How to union polygons with common ID in QGIS?
Using Postgis this can be done very easily within less time ..
steps for that
upload your shapefile in postgis
get a list of total geometries available:
lst = some_function('select geom from …
- 1,862
0
votes
1
answer
3k
views
Import Error while Importing osgeo package [duplicate]
gdal/ogr" package for the Python
(as I don't have any python documentation for osgeo and the command pydoc -g osgeo also doesn't work)
Presently I am using all these packages from inside the Qgis …
- 1,862
3
votes
Finding line length while editing in QGIS?
There is one option available in the Attribute toolbar (named measure line). I hope with that you can get what you want.
- 1,862