Masking no-data values from a raster layer. Adding labels to a vector layer. Get the data¶ Texas Water Development Board provides theshapefiles for completed lake surveys. Download the2007-12 survey shapefiles for Lake Arlington. For convenience, you can directly download the sample data used...
ReadAsArray(0, 0, xsize_in, ysize_in) raster_values[raster_values < 0] = max_dist + 1000 #necessary to produce rectangular array from raster #nodata values get replaced by the maximum value + 1 x_pos = linspace(geotransform_in[0], geotransform_in[0] + geotransform_in[1] * ...
thenCOJ_BoundaryasMask layer. We also have an option to reproject the data to another projection. It is a good practice to keep all your data layers in the same projection. We will reproject the rasters to match the CRS to that of theCOJ_Boundarylayer. SelectEPSG:4326-WGS84as theTarget...
remove references to networkanalysis from scrips and packaging files Nov 21, 2016 scripts do not check in agignore Dec 20, 2016 src Raster renderer GUI: fix switching between renderers, and potential i… Dec 23, 2016 tests Pass variable values as QVariant Dec 23, 2016 ...
Sum: Takes the sum of values for all joined features Proportional Sum: Sums the data from each joined feature in proportion to the percentage of join feature area (in map units) covered by the target feature. Not meaningful for point target layers Average: Takes the average of values for al...
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except TypeError: # when there are nan values in the input data return None new_df = df.head().explode('coordinates') new_df['geometry'] = new_df['coordinates'].apply(create_point) new_df['running_number'] = new_df.groupby('id').cumcount() ...
if ( mainMapCanvas->layer(0)->type() == QgsMapLayer::RasterLayer) { return; } QgsVectorLayer *pLayer=(QgsVectorLayer *)mainMapCanvas->layer(0); mpIdentifyTool->SetSelectLayer(pLayer); if ( ui.mpActionIdentify->isChecked())
fromqgis.coreimport* importos #设置输出目录 output_dir=/path/to/output #转换数据格式 forlayerinQgsProject.instance().mapLayers().values(): output_path=os.path.join(output_dir,f{()}.geojson) writer=QgsVectorFileWriter.writeAsVectorFormat(layer, ...
data_file, ext = QFileDialog.getOpenFileName(self, '打开', '',"ShapeFile(*.shp);;All Files(*);;Other(*.gpkg;*.geojson;*.kml)") if data_file: self.addVectorLayer(data_file) # 添加栅格图层 def addRasterLayer(self,rasterFilePath): ...