Hi Frank, It really depends on: - what is the crs of your project - what is the crs of your layer - if they match, it should work - if they do not match you have to reproject the layer extent to the crs of the mapcanvas
I think the python console will be helpfull here. While loaded, does the plugin have a handle to the actual QGIS layer? If so, say it is called 'self.georecord_layer.layer' in the plugin. Then you can do (in the console): # first find out the name of your plugin qgis.utils.plugins # will show you all loaded layers AND there key/name # say your plugins name is 'franks_plugin' # then plugin = qgis.utils.plugins['franks_plugin'] # will give you a handle (in the console) to your plugin # then plugin.georecord_layer.layer.extent should give you an extent... eg: <QgsRectangle: 103890.796875 492342.34375, 104287.453125 492643.46875> # NOTE that this is in the layers crs ! # you can also use (making the right layer active in legend): iface.activeLayer().extent() # you can also look at the extent of the mapcanvas from the console: iface.mapCanvas().extent() (you can off course also use logging see the extent somewhere) Can you show us both the canvas and the layer extent? Regards, Richard Duivenvoorde On 6/20/23 12:59, Frank Broniewski via QGIS-Developer wrote:
Hi, I am writing a plugin, in which I am loading a bunch of layers, and I want to zoom on one of them. Layers are loaded through an action (click). def load_layer(self): self.project.addMapLayers( [ self.addresses_layer.layer, self.adminunits_layer.layer, self.georecord_layer, ], addToLegend=False, ) self.project.addMapLayers( [ self.geolocation_point_layer.layer, self.geolocation_line_layer.layer, self.geolocation_poly_layer.layer, self.ortho_layer ] ) self.iface.mapCanvas().setExtent(self.georecord_layer.layer.extent()) self.iface.mapCanvas().refresh() but unfortunately, that does not work as expected. QGIS zooms just on the ortho_layer in the end. I have the suspicion, that the extent I set, gets overwritten by another layer that loads in in a later stage. Layers are from a PostGIS, and the ortho_layer is a WMS layer. I tried googleing, mapCanvas().waitWhileRendering() and whatnot, it just will not zoom. I am completely clueless now, so any hints are greatly appreciated. This is on OSGeo4W, QGIS 3.28 and Python , for explanation, the .layer attribute is the actual QGIS layer … Many thanks, Frank _______________________________________________ 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
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