本文整理汇总了Python中qgis.core.QgsRasterLayer.loadNamedStyle方法的典型用法代码示例。如果您正苦于以下问题：Python QgsRasterLayer.loadNamedStyle方法的具体用法？Python QgsRasterLayer.loadNamedStyle怎么用？Python QgsRasterLayer.loadNamedStyle使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类qgis.core.QgsRasterLayer的用法示例。
在下文中一共展示了QgsRasterLayer.loadNamedStyle方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: load
# 需要导入模块: from qgis.core import QgsRasterLayer [as 别名]
# 或者: from qgis.core.QgsRasterLayer import loadNamedStyle [as 别名]
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示例2: load
# 需要导入模块: from qgis.core import QgsRasterLayer [as 别名]
# 或者: from qgis.core.QgsRasterLayer import loadNamedStyle [as 别名]
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示例3: add_raster_layer
# 需要导入模块: from qgis.core import QgsRasterLayer [as 别名]
# 或者: from qgis.core.QgsRasterLayer import loadNamedStyle [as 别名]
def add_raster_layer(self, path, id):
"""Add a downloaded raster layer to the workspace."""
# create a new rasterlayer from the supplied TIF file
layer = QgsRasterLayer(path, id)
# load layer style based on number of bands
bands = layer.bandCount()
if bands == 1:
path = os.path.join(self.plugin_dir, 'styles', 'singleband.qml')
else:
path = os.path.join(self.plugin_dir, 'styles', 'multiband.qml')
layer.loadNamedStyle(path)
# add the layer to the workspace
QgsMapLayerRegistry.instance().addMapLayer(layer)