![]() The transformation of a value to an URL address is done automatically in a few cases (this feature is currently undocumented): for example when the column value starts with http or https or a string … A basic JavaScript for GIS application might consist of an interactive web GIS map embedded in a web page or mobile application and include additional web page functionality integrated with non-spatial static or dynamic data sources. I'm working on latest version of JavaScript API. ![]() In this session, we’ll use React to build fast and responsive applications that use modern tooling and techniques. We've used the JSAPI since the early days of v3, and while we have workable mouseover tooltips (opening the pop-up), one aspect we wish we could change is the smoothness of the hover/tooltip. js inside the config folder for the application, to the sharing URL for ArcGIS Online or Portal. This sample shows how to create a client-side FeatureLayer from a shapefile. There is an attribute called fields, which is an array of Field objects. To manually change the style attribute I would open the map, hover over a layer and click 'Change style': Then I would select the style attribute from the list that appears: In this tutorial - the first of a series - we are going to play around with ArcGIS API for JavaScript using only UK data. You can get this from the FeatureLayer class. Has anyone gotten the panning/zooming to work for chart. Rlayer = QgsRasterLayer('GPKG:' + str(self.Javascript in gis. If fw.writeRaster(pipe, provider.xSize(), provider.ySize(), provider.extent(), provider.crs()) = 0:įor reading raster layer in GeoPackage: from re import QgsRasterLayer Source = QgsRasterLayer(layerSource, 'rasterLayer', 'gdal')įw = QgsRasterFileWriter(self.projectGpkg)įw.setCreateOptions() I have investigated this code an create a script like it works very well for exporting raster layer to GeoPackage: from osgeo import ogrįrom re import QgsRasterLayer, QgsRasterFileWriter, QgsRasterPipe, QgsRasterProjector Note: Set the rest of parameters as you like, but the OVERWRITE one should be set to False if you want to update the existing GeoPackage. You could also use the "Package layers" algorithm, which allows you to add several layers at once, in this way: import processing Where -update indicates the existing GeoPackage shouldn't be overwritten but updated, and -nln (optional) indicates the layer name you want your existing_layer to have when created into the existing GeoPackage. 'OPTIONS':'-update -nln my_new_layer_name', If you want to add a layer to an existing GeoPackage (and still preserve other existing layers!), you can use the GDAL's "Convert format" algorithm in this way: import processing ![]() Warning: If you pass a path to an existing GeoPackage as OUTPUT parameter, this algorithm will replace your GeoPackage by a new one!!! Adding an additional layer to an existing GeoPackage Note that you can pass additional GDAL/OGR options by passing DATASOURCE_OPTIONS and LAYER_OPTIONS parameters. The easiest way to save a vector layer to GeoPackage is to use the "Save vector features to file" algorithm, available from QGIS 3.16 on. In my opinion easiest way to find out is to install IP圜onsole plugin and use PyQGIS API. PyQGIS should have similar interface for raster layers. _writer = QgsVectorFileWriter.writeAsVectorFormat(lyr, gpkgPath, options) Options.actionOnExistingFile = QgsVectorFileWriter.CreateOrOverwriteLayer Options = QgsVectorFileWriter.SaveVectorOptions() from re import QgsMapLayer, QgsVectorFileWriterįor lyr in filter(lambda l: l.type() = QgsMapLayer.VectorLayer, lyrs): If you want save more than one layer in GeoPackage file you should set additional options. Lyrs = QgsMapLayerRegistry.instance().mapLayers() _writer = QgsVectorFileWriter.writeAsVectorFormat(lyr, r"C:\gisData\layer.gpkg")įrom re import QgsMapLayerRegistry, QgsVectorFileWriter Lyrs = QgsProject.instance().layerTreeRoot().children() Lyrs = iface.layerTreeView().selectedLayers() If you store one layer per GPKG file you just need: QGIS 3: # importsįrom re import QgsProject, QgsVectorFileWriter You need to use QgsVectorFileWriter.writeAsVectorFormat.
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