def load(fileName, name=None, crs=None, style=None, isRaster=False): """ Loads a layer/table into the current project, given its file. .. deprecated:: 3.0 Do not use, will be removed in QGIS 4.0 """ from warnings import warn warn("processing.load is deprecated and will be removed in QGIS 4.0", DeprecationWarning) if fileName is None: return if name is None: name = os.path.split(fileName)[1] if isRaster: options = QgsRasterLayer.LayerOptions() options.skipCrsValidation = True qgslayer = QgsRasterLayer(fileName, name, 'gdal', options) if qgslayer.isValid(): if crs is not None and qgslayer.crs() is None: qgslayer.setCrs(crs, False) if style is None: style = ProcessingConfig.getSetting( ProcessingConfig.RASTER_STYLE) qgslayer.loadNamedStyle(style) QgsProject.instance().addMapLayers([qgslayer]) else: raise RuntimeError( QCoreApplication.translate( 'dataobject', 'Could not load layer: {0}\nCheck the processing framework log to look for errors.' ).format(fileName)) else: options = QgsVectorLayer.LayerOptions() options.skipCrsValidation = True qgslayer = QgsVectorLayer(fileName, name, 'ogr', options) if qgslayer.isValid(): if crs is not None and qgslayer.crs() is None: qgslayer.setCrs(crs, False) if style is None: if qgslayer.geometryType() == QgsWkbTypes.PointGeometry: style = ProcessingConfig.getSetting( ProcessingConfig.VECTOR_POINT_STYLE) elif qgslayer.geometryType() == QgsWkbTypes.LineGeometry: style = ProcessingConfig.getSetting( ProcessingConfig.VECTOR_LINE_STYLE) else: style = ProcessingConfig.getSetting( ProcessingConfig.VECTOR_POLYGON_STYLE) qgslayer.loadNamedStyle(style) QgsProject.instance().addMapLayers([qgslayer]) return qgslayer
def load(fileName, name=None, crs=None, style=None, isRaster=False): """ Loads a layer/table into the current project, given its file. .. deprecated:: 3.0 Do not use, will be removed in QGIS 4.0 """ from warnings import warn warn("processing.load is deprecated and will be removed in QGIS 4.0", DeprecationWarning) if fileName is None: return prjSetting = None settings = QgsSettings() if crs is not None: prjSetting = settings.value('/Projections/defaultBehavior') settings.setValue('/Projections/defaultBehavior', '') if name is None: name = os.path.split(fileName)[1] if isRaster: qgslayer = QgsRasterLayer(fileName, name) if qgslayer.isValid(): if crs is not None and qgslayer.crs() is None: qgslayer.setCrs(crs, False) if style is None: style = ProcessingConfig.getSetting(ProcessingConfig.RASTER_STYLE) qgslayer.loadNamedStyle(style) QgsProject.instance().addMapLayers([qgslayer]) else: if prjSetting: settings.setValue('/Projections/defaultBehavior', prjSetting) raise RuntimeError(QCoreApplication.translate('dataobject', 'Could not load layer: {0}\nCheck the processing framework log to look for errors.').format( fileName)) else: qgslayer = QgsVectorLayer(fileName, name, 'ogr') if qgslayer.isValid(): if crs is not None and qgslayer.crs() is None: qgslayer.setCrs(crs, False) if style is None: if qgslayer.geometryType() == QgsWkbTypes.PointGeometry: style = ProcessingConfig.getSetting(ProcessingConfig.VECTOR_POINT_STYLE) elif qgslayer.geometryType() == QgsWkbTypes.LineGeometry: style = ProcessingConfig.getSetting(ProcessingConfig.VECTOR_LINE_STYLE) else: style = ProcessingConfig.getSetting(ProcessingConfig.VECTOR_POLYGON_STYLE) qgslayer.loadNamedStyle(style) QgsProject.instance().addMapLayers([qgslayer]) if prjSetting: settings.setValue('/Projections/defaultBehavior', prjSetting) return qgslayer
def load(fileName, name=None, crs=None, style=None, isRaster=False): """Loads a layer/table into the current project, given its file. """ if fileName is None: return prjSetting = None settings = QgsSettings() if crs is not None: prjSetting = settings.value('/Projections/defaultBehavior') settings.setValue('/Projections/defaultBehavior', '') if name is None: name = os.path.split(fileName)[1] if isRaster: qgslayer = QgsRasterLayer(fileName, name) if qgslayer.isValid(): if crs is not None and qgslayer.crs() is None: qgslayer.setCrs(crs, False) if style is None: style = ProcessingConfig.getSetting( ProcessingConfig.RASTER_STYLE) qgslayer.loadNamedStyle(style) QgsProject.instance().addMapLayers([qgslayer]) else: if prjSetting: settings.setValue('/Projections/defaultBehavior', prjSetting) raise RuntimeError( QCoreApplication.translate( 'dataobject', 'Could not load layer: {0}\nCheck the processing framework log to look for errors.' ).format(fileName)) else: qgslayer = QgsVectorLayer(fileName, name, 'ogr') if qgslayer.isValid(): if crs is not None and qgslayer.crs() is None: qgslayer.setCrs(crs, False) if style is None: if qgslayer.geometryType() == QgsWkbTypes.PointGeometry: style = ProcessingConfig.getSetting( ProcessingConfig.VECTOR_POINT_STYLE) elif qgslayer.geometryType() == QgsWkbTypes.LineGeometry: style = ProcessingConfig.getSetting( ProcessingConfig.VECTOR_LINE_STYLE) else: style = ProcessingConfig.getSetting( ProcessingConfig.VECTOR_POLYGON_STYLE) qgslayer.loadNamedStyle(style) QgsProject.instance().addMapLayers([qgslayer]) if prjSetting: settings.setValue('/Projections/defaultBehavior', prjSetting) return qgslayer
def load(fileName, name=None, crs=None, style=None, isRaster=False): """Loads a layer/table into the current project, given its file. """ if fileName is None: return prjSetting = None settings = QSettings() if crs is not None: prjSetting = settings.value('/Projections/defaultBehaviour') settings.setValue('/Projections/defaultBehaviour', '') if name is None: name = os.path.split(fileName)[1] if isRaster: qgslayer = QgsRasterLayer(fileName, name) if qgslayer.isValid(): if crs is not None and qgslayer.crs() is None: qgslayer.setCrs(crs, False) if style is None: style = ProcessingConfig.getSetting( ProcessingConfig.RASTER_STYLE) qgslayer.loadNamedStyle(style) QgsMapLayerRegistry.instance().addMapLayers([qgslayer]) iface.legendInterface().refreshLayerSymbology(qgslayer) else: if prjSetting: settings.setValue('/Projections/defaultBehaviour', prjSetting) raise RuntimeError( 'Could not load layer: ' + unicode(fileName) + '\nCheck the processing framework log to look for errors') else: qgslayer = QgsVectorLayer(fileName, name, 'ogr') if qgslayer.isValid(): if crs is not None and qgslayer.crs() is None: qgslayer.setCrs(crs, False) if style is None: if qgslayer.geometryType() == QGis.Point: style = ProcessingConfig.getSetting( ProcessingConfig.VECTOR_POINT_STYLE) elif qgslayer.geometryType() == QGis.Line: style = ProcessingConfig.getSetting( ProcessingConfig.VECTOR_LINE_STYLE) else: style = ProcessingConfig.getSetting( ProcessingConfig.VECTOR_POLYGON_STYLE) qgslayer.loadNamedStyle(style) QgsMapLayerRegistry.instance().addMapLayers([qgslayer]) if prjSetting: settings.setValue('/Projections/defaultBehaviour', prjSetting) return qgslayer
def load(fileName, name=None, crs=None, style=None, isRaster=False): """Loads a layer/table into the current project, given its file. """ if fileName is None: return prjSetting = None settings = QSettings() if crs is not None: prjSetting = settings.value('/Projections/defaultBehaviour') settings.setValue('/Projections/defaultBehaviour', '') if name is None: name = os.path.split(fileName)[1] if isRaster: qgslayer = QgsRasterLayer(fileName, name) if qgslayer.isValid(): if crs is not None and qgslayer.crs() is None: qgslayer.setCrs(crs, False) if style is None: style = ProcessingConfig.getSetting(ProcessingConfig.RASTER_STYLE) qgslayer.loadNamedStyle(style) QgsMapLayerRegistry.instance().addMapLayers([qgslayer]) iface.legendInterface().refreshLayerSymbology(qgslayer) else: if prjSetting: settings.setValue('/Projections/defaultBehaviour', prjSetting) raise RuntimeError('Could not load layer: ' + unicode(fileName) + '\nCheck the processing framework log to look for errors') else: qgslayer = QgsVectorLayer(fileName, name, 'ogr') if qgslayer.isValid(): if crs is not None and qgslayer.crs() is None: qgslayer.setCrs(crs, False) if style is None: if qgslayer.geometryType() == QGis.Point: style = ProcessingConfig.getSetting(ProcessingConfig.VECTOR_POINT_STYLE) elif qgslayer.geometryType() == QGis.Line: style = ProcessingConfig.getSetting(ProcessingConfig.VECTOR_LINE_STYLE) else: style = ProcessingConfig.getSetting(ProcessingConfig.VECTOR_POLYGON_STYLE) qgslayer.loadNamedStyle(style) QgsMapLayerRegistry.instance().addMapLayers([qgslayer]) if prjSetting: settings.setValue('/Projections/defaultBehaviour', prjSetting) return qgslayer
def load_file_as_layer(file_name, layer_name, group_name=None, min_val=None, max_val=None, mean_val=None, value_color=None, area=None, attribute=None): layer = QgsRasterLayer(file_name, layer_name) if layer.isValid(): # generate legend with min/max values create_legend(layer, max_val, min_val, mean_val, value_color, area) else: layer = QgsVectorLayer(file_name, layer_name) # add_id_attribute_to_layer(layer) if layer.isValid(): renderer = layer.renderer() print(layer.geometryType()) if renderer and layer.geometryType() == 2: # make fill of shapes invisible mySymbol1 = QgsFillSymbol.createSimple({'color': '#00ff00ff'}) renderer.setSymbol(mySymbol1) layer.triggerRepaint() elif renderer and layer.geometryType() == 0 and min_val and max_val: print(layer.geometryType()) ranges = [] center = round((max_val - min_val) / 2, 0) range_1 = round((center - min_val) / 2, 0) range_2 = round(((max_val - center) / 2) + center, 0) print(min_val, range_1, center, range_2, max_val) symbol = QgsSymbol.defaultSymbol(layer.geometryType()) symbol.setColor(QColor("#0005ae")) myRange = QgsRendererRange(min_val - 0.001, range_1, symbol, str(round(min_val,2)) + " - " + str(range_1) + " (MWh/point)") ranges.append(myRange) symbol = QgsSymbol.defaultSymbol(layer.geometryType()) symbol.setColor(QColor("#fda000")) myRange = QgsRendererRange(range_1, range_2, symbol, str(range_1) + " - " + str(range_2) + " (MWh/point)") ranges.append(myRange) symbol = QgsSymbol.defaultSymbol(layer.geometryType()) symbol.setColor(QColor("#ff0000")) myRange = QgsRendererRange(range_2, max_val + 0.001, symbol, str(range_2) + " - " + str(round(max_val,2)) + " (MWh/point)") ranges.append(myRange) expression = attribute # field name renderer = QgsGraduatedSymbolRenderer(expression, ranges) layer.setRenderer(renderer) else: QMessageBox.information(None, "Error", "file " + file_name + " could not be loaded") if group_name is None: QgsProject.instance().addMapLayer(layer) else: QgsProject.instance().addMapLayer(layer, False) root = QgsProject.instance().layerTreeRoot() group = root.findGroup(group_name) if group is None: group = root.insertGroup(0, group_name) group.addLayer(layer) return layer