Hi David, It's finally working! Thank you (and sorry for the delay in getting back to you). AF David Signer wrote: First you have to retrieve the current layertree to do modifications: tree = QgsProject.instance().layerTreeRoot() ...and after setting your order: tree.setCustomLayerOrder(layersII) ...you have to set that a layer order should be considered: tree.setHasCustomLayerOrder(True) On Wed, Oct 23, 2024 at 6:33 PM coder via QGIS-Developer <qgis-developer@lists.osgeo.org <mailto:qgis-developer@lists.osgeo.org> > wrote: Hello I'm trying to change the rendering order for the layers in the canvas with the aid of QgsLayerTree. The code grabs each layer, checks whether is a QgsMapLayer instance, and generates a reordered list (layersII). Then, the code executes: QgsLayerTree().setCustomLayerOrder(layersII) but nothing happens and print (QgsLayerTree().hasCustomLayerOrder()) returns False. The API documentation (https://qgis.org/pyqgis/master/core/QgsLayerTree.html <https://qgis.org/pyqgis/master/core/QgsLayerTree.html> ) indicates that customLayerOrder will only be used when hasCustomLayerOrder is True. I'm missing something here but after browsing and googling, I just haven't figured out how to make the change in rendering order active. Thanks. _______________________________________________ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org <mailto:QGIS-Developer@lists.osgeo.org> List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer <https://lists.osgeo.org/mailman/listinfo/qgis-developer> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer <https://lists.osgeo.org/mailman/listinfo/qgis-developer>
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