If you need the heatmap visualization to be saved as a permanent raster layer or want to customize the heatmap with advanced options such as different kernels or dynamic radius, you can use theHeatmap (Kernel Density Estimation)from the Processing Toolbox. We will now use this algorithm. Go...
(4326, QgsCoordinateReferenceSystem.EpsgCrsId) myXForm = QgsCoordinateTransform( theSourceCrs, myGeoCrs) # Get the clip area in the layer's crs myTransformedExtent = myXForm.transformBoundingBox(theExtent) myGeoExtent = [myTransformedExtent.xMinimum(), myTransformedExtent...
layer3 = QgsVectorLayer("Point?field=fldtxt:string", "layer3", "memory") non_spatial = QgsVectorLayer("None?field=fldtxt:string", "non_spatial", "memory") prj.addMapLayers([layer, layer2, layer3, non_spatial]) canvas = QgsMapCanvas() bridge = QgsLayerTreeMapCanvasBridge(prj.layer...
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If you need the heatmap visualization to be saved as a permanent raster layer or want to customize the heatmap with advanced options such as different kernels or dynamic radius, you can use theHeatmap (Kernel Density Estimation)from the Processing Toolbox. We will now use this algorithm. Go...
Have a close look at the first few lines in red of the output, and see if you some corresponding help here. Could not connect to the API This means that the plugin could not connect to the webservice. Make sure you are online and that your connection works properly. If the error pers...
(val) + + +def _make_unicode(val, enc): + """Convert value to unicode with given encoding + + :param val: value to be converted + :param enc: encoding to be used + """ + if val is None or enc is None: + return val + else: + if enc == 'default': + return decode(...
()) # Create a layer for the feature and add to the project lyr = QgsVectorLayer('Polygon?crs=epsg:29194','Test',"memory") Prj.addMapLayers([lyr]) # Make the layer editable, add the feature and save lyr.startEditing() lyr.addFeature(ftr) lyr.commitChanges() # Save as a ...
Could not make temporary scratch layer permanent. Error: Feature write errors: Feature creation error (OGR error: failed to execute insert :UNIQUE constraint failed: temperror.fid) Only 1 of [3] features written. What causes this error and how to save such a layer or make it permanent ...
Finally, the addresses will pop up in your table of contents and map canvas as a temporary layer. If you want to make it a permanent layer, you will have to right-click the layer and export it to a directory on your file system. ...