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
