Great!! The virtual fields are the solution. Thank you!! 2016-02-10 11:50 GMT+01:00 Bernd Vogelgesang <[email protected]>:
> Ahhh, > now I finally got what those virtual fields are good for! Great! > The non-noob way of achieving this so far was e.g. to use a SpatiaLite db > and create triggers there. See http://gis.stackexchange.com/a/86470 > This would then be a permanent solution. > > Cheers > Bernd > > Am 10.02.2016, 10:53 Uhr, schrieb Piotr Kania <[email protected]>: > > Here it's nice info: > http://www.northrivergeographic.com/archives/qgis-2-6-virtual-fields > > W dniu 2016-02-10 o 10:18, Josefine Petrenz pisze: > > hej hej, > > at first, I would like to apologize for my english. > > I have a shape-file with several areas. In my attribut table, each area > has an information about the area size. > Step by step the areas become bigger or smaller. Every time, when this > happened, i have to recalculate the area size. is there a way, that the > area size correct automatically in the attribute table, when i change the > area? > > thanks in advance > josi > > > _______________________________________________ > Qgis-user mailing [email protected] > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user > > > > > > -- > Bernd Vogelgesang > Siedlerstraße 2 > 91083 Baiersdorf/Igelsdorf > Tel: 09133-825374 > > _______________________________________________ > Qgis-user mailing list > [email protected] > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user >
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