[Qgis-developer] [Feature][Processing] Headless

[Salvatore Larosa]

Hi,

I just tested it and works wonderfully!
I also have tried it as web process for PyWPS and works very well!

Thanks a lot for this!

Best Regards,
-SL

On Mon, Dec 16, 2013 at 3:46 PM, rldhont <rldhont at gmail.com> wrote:

> Hi dev,
>
> I just created a pull request to run QGIS-Processing headless.
> I have tested it with a qgis and a modeler algorithm.
>
> https://github.com/qgis/QGIS/pull/1031
>
> Review and comments are welcome
>
> To test QGIS Processing algorithm headlessly, you can use this python code
> __________________________________
>
> import sys, os
> import inspect
>
> from PyQt4.QtCore import *
> from PyQt4.QtGui import *
> from qgis.core import *
>
>
> # supply path to where is your qgis installed
> QgsApplication.setPrefixPath("/path/to/your/qgis/build", True)
>
> # load providers
> QgsApplication.initQgis()
>
> # load a project
> p = QgsProject.instance()
> p.read( QFileInfo( "/path/to/a/project.qgs" ) )
>
> # init QApplication for processing
> a = QApplication( sys.argv )
>
> # init QGIS Processing
> from processing.core.Processing import Processing
> cmd_folder = os.path.split(inspect.getfile(inspect.currentframe()))[0]
> if cmd_folder not in sys.path:
>     sys.path.insert(0, cmd_folder)
> Processing.initialize()
>
> # import QGIS Processing tools
> from processing.tools import *
>
> # print an algorithms search
> general.alglist( 'buffer')
>
> # print an algorithm help
> general.help( 'qgis:fixeddistancebuffer' )
>
>
> # run an algorithm
> alg = Processing.getAlgorithm( 'qgis:fixeddistancebuffer' )
> general.runalg( 'qgis:fixeddistancebuffer', '/vector/layer/input/uri',
> 0.1, 5, False, '/vector/layer/output.shp' );
>
> # quit
> QgsApplication.exitQgis()
> ____________________________
>
> export PYTHONPATH=/path/to/build/share/qgis/python:/path/to/
> build/share/qgis/python/plugins
> export LD_LIBRARY_PATH=/path/to/build/lib
> python my_scrpit.py
> _____________________________
>
> Regards
> _______________________________________________
> Qgis-developer mailing list
> Qgis-developer at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-developer
>



-- 
Salvatore Larosa
linkedIn: http://linkedin.com/in/larosasalvatore
twitter: @lrssvt
skype: s.larosa
IRC: lrssvt on freenode
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