On Wed, 12 Sep 2018 at 04:00, C Hamilton <[email protected]> wrote: > > In a processing routine I create an output vector layer. > > self.addParameter( > QgsProcessingParameterFeatureSink( > self.PrmOutputLayer, > tr('Output layer')) > ) > > (sink, dest_id) = self.parameterAsSink(parameters, > self.PrmOutputLayer, context, fields, QgsWkbTypes.LineString, > srcCRS) > > I would like to style the output layer by enabling a label based off of one > of the fields. Can I do this in Processing? I guess what I would like to get > is the actual vector layer that is created. Is that possible?
Actually the best approach is to use a layer post processor. This is flexible and totally thread-safe :) I don't think there's any Python examples in QGIS yet, but see https://github.com/qgis/QGIS/blob/master/src/analysis/processing/qgsalgorithmcategorizeusingstyle.cpp#L104 and https://github.com/qgis/QGIS/blob/master/src/analysis/processing/qgsalgorithmimportphotos.cpp#L227 for some c++ examples. Here's a possible Python example: https://gist.github.com/nyalldawson/26c091dd48b4f8bf56f172efe22cf75f Nyall _______________________________________________ QGIS-Developer mailing list [email protected] List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
