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You may try below code (tested with my own database table using data with EPSG 4326) Some of the code in the sample can help you for other purposes as it was an existing script I've updated to manage …

Here a standalone recipe. We've seen you are using "Rule-based" symbology. Instead of doing the case for this particular case, we've made the sample for "Single Symbol" and at the end made the transfo …

Not sure I can help directly but you can run the following as it perfectly shows the progress bar and the progressChanged calls correctly the progress_changed function (tested before answering) from …

Two points: Look at the following methods as I'm not sure you should use setClassificationField (PS: not certain as only supposed from the API doc) dr.setClassificationAttributeExpression(strExp) dr.s …

You can use the following recipe # Create QgsGeometry from QgsPointXY geom = QgsGeometry.fromPointXY (QgsPointXY(5,20)) # Prepare crs source and destination and instanciate a transform function sourc …

If you print the vlayer variable, you will see it's a string referencing the QGIS layer path, so the correction would be the following (standalone, tested with only two separated points layers) layers …

You need to add below content (tested) label_settings.isExpression = True The QgsPalLayerSettings doc for fieldName states the following QString QgsPalLayerSettings::fieldName Name of fiel …

Not sure as your question is not perfectly clear (for me at least) but if you want to filter the layer, use the following expression = '"id_parroqu"=1' layer = iface.activeLayer() layer.setSubsetStri …

You just need to move your marker = QgsMarkerSymbol.createSimple({"size":"0.1","color":"blue"}) declaration within the loop (tested). Then when cleaning, no problem. It was crashing because you were t …

You should change your code by replacing def onFeatureIdentified(feature): with def onFeatureIdentified(self, feature): If I'm not wrong your onFeatureIdentified is a method of your plugin: it expects …

You can remove pr.setAttributes(attrs) line and add after b.setGeometry(buff) the line b.setAttributes(attrs) You can replace your code alternatively with call to existing processing script for buffe …

You need to add pages before attempting to move your items. Your current code tries to move items to "non existing pages". A demo below (I start from an existing empty layout named demo_multi with one …

It's possible to set the configuration from PyQGIS although it has been a bit annoying to look at the C code to find the keys to write in the QGIS project file (https://github.com/qgis/QGIS/blob/9a0a1 …

Not sure you are choosing the "right" approach. You would better use Qt signals to catch changes in the layer. from qgis.core import QgsVectorLayer # create layer points_layer = QgsVectorLayer("Point …

You can do the following to enable snapping and then topological editing (it happens at QgsProject level): new_conf = QgsSnappingConfig(QgsProject.instance().snappingConfig()) new_conf.setEnabled(True …