On Sat, 28 Jan 2023 at 05:35, C Hamilton via QGIS-Developer <qgis-developer@lists.osgeo.org> wrote: > > I just received a request to update the Density Analysis plugin density hash > algorithms so they work with multiple layers and produce one density map > based off of multiple input layers. In the algorithm I have replaced > QgsProcessingParameterFeatureSource with QgsProcessingParameterMultipleLayers. > > Is there a way to automatically populate as default value of selected layers > in QgsProcessingParameterMultipleLayers with the selected layers or selected > groups of layers in the "Layer Panel"? This would be incredibly useful.
You'd (unfortunately -- it's not a trivial change) need to do this via a custom Processing widget wrapper, so that your parameter gets its own widget class where you can implement this logic. Nyall > > I am doing this as a QgsProcessingAlgorithm. The layerType to > QgsProcessingParameterMultipleLayers is QgsProcessing.TypeVectorPoint. > > Thanks for your help. > > Calvin > _______________________________________________ > QGIS-Developer mailing list > QGIS-Developer@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer _______________________________________________ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
