def __init__(self, canvas):
"""Constructor
:param canvas:
"""
QObject.__init__(self)
self.canvas = canvas
# Set up slots so we can mimic the behaviour of QGIS when layers
# are added.
LOGGER.debug('Initialising canvas...')
# noinspection PyArgumentList
QgsMapLayerRegistry.instance().layersAdded.connect(self.addLayers)
# noinspection PyArgumentList
QgsMapLayerRegistry.instance().layerWasAdded.connect(self.addLayer)
# noinspection PyArgumentList
QgsMapLayerRegistry.instance().removeAll.connect(self.removeAllLayers)
# For processing module
self.destCrs = None
# In the next section of code, we are going to do some monkey patching
# to make the QGIS processing framework think that this mock QGIS IFACE
# instance is the actual one. It will also ensure that the processing
# algorithms are nicely loaded and available for use.
# pylint: disable=F0401
from processing.core import QGisLayers
import processing
from processing.core.Processing import Processing
# pylint: enable=F0401
processing.classFactory(self)
# We create our own getAlgorithm function below which will will monkey
# patch in to the Processing class in QGIS in order to ensure that the
# Processing.initialize() call is made before asking for an alg.
@staticmethod
def mock_getAlgorithm(name):
"""
Modified version of the original getAlgorithm function.
:param name: Name of the algorithm to load.
:type name: str
:return: An algorithm concrete class.
:rtype: QgsAlgorithm ?
"""
Processing.initialize()
for provider in Processing.algs.values():
if name in provider:
return provider[name]
return None
# Now we let the monkey loose!
Processing.getAlgorithm = mock_getAlgorithm
# We also need to make QGisLayers think that this iface is 'the one'
# Note. the placement here (after the getAlgorithm monkey patch above)
# is significant, so don't move it!
QGisLayers.iface = self
def __init__(self, canvas):
"""Constructor
:param canvas:
"""
QObject.__init__(self)
self.canvas = canvas
# Set up slots so we can mimic the behaviour of QGIS when layers
# are added.
LOGGER.debug('Initialising canvas...')
# noinspection PyArgumentList
QgsMapLayerRegistry.instance().layersAdded.connect(self.addLayers)
# noinspection PyArgumentList
QgsMapLayerRegistry.instance().layerWasAdded.connect(self.addLayer)
# noinspection PyArgumentList
QgsMapLayerRegistry.instance().removeAll.connect(self.removeAllLayers)
# For processing module
self.destCrs = None
# In the next section of code, we are going to do some monkey patching
# to make the QGIS processing framework think that this mock QGIS IFACE
# instance is the actual one. It will also ensure that the processing
# algorithms are nicely loaded and available for use.
# pylint: disable=F0401
from processing.core import QGisLayers
import processing
from processing.core.Processing import Processing
# pylint: enable=F0401
processing.classFactory(self)
# We create our own getAlgorithm function below which will will monkey
# patch in to the Processing class in QGIS in order to ensure that the
# Processing.initialize() call is made before asking for an alg.
@staticmethod
def mock_getAlgorithm(name):
"""
Modified version of the original getAlgorithm function.
:param name: Name of the algorithm to load.
:type name: str
:return: An algorithm concrete class.
:rtype: QgsAlgorithm ?
"""
Processing.initialize()
for provider in Processing.algs.values():
if name in provider:
return provider[name]
return None
# Now we let the monkey loose!
Processing.getAlgorithm = mock_getAlgorithm
# We also need to make QGisLayers think that this iface is 'the one'
# Note. the placement here (after the getAlgorithm monkey patch above)
# is significant, so don't move it!
QGisLayers.iface = self
def import_processing():
global iface
plugin_found = "processing" in qgis.utils.plugins
if not plugin_found:
processing_plugin = processing.classFactory(iface)
qgis.utils.plugins["processing"] = processing_plugin
qgis.utils.active_plugins.append("processing")
from processing.core.Processing import Processing
Processing.initialize()
QgsApplication.processingRegistry().addProvider(QgsNativeAlgorithms())
def init_qprocess():
QgsApplication.setPrefixPath(qgsapplication_prefix, True)
app = QgsApplication([], True)
from PyQt4 import QtCore, QtGui
import processing
from processing.core.Processing import Processing
from processing.tools import general as g
# Create a dummy QGIS interface. Requires an X server connection in linux to run.
iface = DummyInterface()
plugin = processing.classFactory(iface)
Processing.initialize()
QgsApplication.initQgis()
return g
def __init__(self, canvas):
"""Constructor
:param canvas:
"""
QObject.__init__(self)
self.canvas = canvas
self.legend = QgisLegend(canvas)
self.message_bar = QgsMessageBar(None)
# Set up slots so we can mimic the behaviour of QGIS when layers
# are added.
LOGGER.debug('Initialising canvas...')
# noinspection PyArgumentList
QgsMapLayerRegistry.instance().layersAdded.connect(self.addLayers)
# noinspection PyArgumentList
QgsMapLayerRegistry.instance().layerWasAdded.connect(self.addLayer)
# noinspection PyArgumentList
QgsMapLayerRegistry.instance().removeAll.connect(self.removeAllLayers)
# For processing module
self.destCrs = None
# For keeping track of which layer is active in the legend.
self.active_layer = None
# In the next section of code, we are going to do some monkey patching
# to make the QGIS processing framework think that this mock QGIS IFACE
# instance is the actual one. It will also ensure that the processing
# algorithms are nicely loaded and available for use.
# Since QGIS > 2.0, the module is moved from QGisLayers to dataobjects
# pylint: disable=F0401, E0611
if QGis.QGIS_VERSION_INT > 20001:
# noinspection PyUnresolvedReferences
from processing.tools import dataobjects
else:
# noinspection PyUnresolvedReferences
from processing.core import QGisLayers as dataobjects
# noinspection PyUnresolvedReferences
import processing
# noinspection PyUnresolvedReferences
from processing.core.Processing import Processing
# pylint: enable=F0401, E0611
processing.classFactory(self)
# We create our own getAlgorithm function below which will will monkey
# patch in to the Processing class in QGIS in order to ensure that the
# Processing.initialize() call is made before asking for an alg.
@staticmethod
def mock_getAlgorithm(name):
"""
Modified version of the original getAlgorithm function.
:param name: Name of the algorithm to load.
:type name: str
:return: An algorithm concrete class.
:rtype: QgsAlgorithm ?
"""
Processing.initialize()
for provider in Processing.algs.values():
if name in provider:
return provider[name]
return None
# Now we let the monkey loose!
Processing.getAlgorithm = mock_getAlgorithm
# We also need to make dataobjects think that this iface is 'the one'
# Note. the placement here (after the getAlgorithm monkey patch above)
# is significant, so don't move it!
dataobjects.iface = self
# set up a layer tree bridge so that new added layers appear in legend
self.layer_tree_root = QgsProject.instance().layerTreeRoot()
self.bridge = QgsLayerTreeMapCanvasBridge(self.layer_tree_root,
self.canvas)
self.bridge.setCanvasLayers()
def __init__(self, canvas):
"""Constructor
:param canvas:
"""
QObject.__init__(self)
self.canvas = canvas
self.legend = QgisLegend(canvas)
self.message_bar = QgsMessageBar(None)
# Set up slots so we can mimic the behaviour of QGIS when layers
# are added.
LOGGER.debug("Initialising canvas...")
# noinspection PyArgumentList
QgsMapLayerRegistry.instance().layersAdded.connect(self.addLayers)
# noinspection PyArgumentList
QgsMapLayerRegistry.instance().layerWasAdded.connect(self.addLayer)
# noinspection PyArgumentList
QgsMapLayerRegistry.instance().removeAll.connect(self.removeAllLayers)
# For processing module
self.destCrs = None
# For keeping track of which layer is active in the legend.
self.active_layer = None
# In the next section of code, we are going to do some monkey patching
# to make the QGIS processing framework think that this mock QGIS IFACE
# instance is the actual one. It will also ensure that the processing
# algorithms are nicely loaded and available for use.
# Since QGIS > 2.0, the module is moved from QGisLayers to dataobjects
# pylint: disable=F0401, E0611
if QGis.QGIS_VERSION_INT > 20001:
# noinspection PyUnresolvedReferences
from processing.tools import dataobjects
else:
# noinspection PyUnresolvedReferences
from processing.core import QGisLayers as dataobjects
# noinspection PyUnresolvedReferences
import processing
# noinspection PyUnresolvedReferences
from processing.core.Processing import Processing
# pylint: enable=F0401, E0611
processing.classFactory(self)
# We create our own getAlgorithm function below which will will monkey
# patch in to the Processing class in QGIS in order to ensure that the
# Processing.initialize() call is made before asking for an alg.
@staticmethod
def mock_getAlgorithm(name):
"""
Modified version of the original getAlgorithm function.
:param name: Name of the algorithm to load.
:type name: str
:return: An algorithm concrete class.
:rtype: QgsAlgorithm ?
"""
Processing.initialize()
for provider in Processing.algs.values():
if name in provider:
return provider[name]
return None
# Now we let the monkey loose!
Processing.getAlgorithm = mock_getAlgorithm
# We also need to make dataobjects think that this iface is 'the one'
# Note. the placement here (after the getAlgorithm monkey patch above)
# is significant, so don't move it!
dataobjects.iface = self
# set up a layer tree bridge so that new added layers appear in legend
self.layer_tree_root = QgsProject.instance().layerTreeRoot()
self.bridge = QgsLayerTreeMapCanvasBridge(self.layer_tree_root, self.canvas)
self.bridge.setCanvasLayers()
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
.. note:: This source code based on "QGIS Issue Tracking" discussion
https://hub.qgis.org/issues/8955 with original author:
Copyright (c) Joshua Arnott [email protected]
"""
# The module is used for testing only.
# It is not a part of inasafe workflow.
import sys
# configure paths for QGIS plugins
# (we need to set path for processing module)
qgisprefix = '/usr'
sys.path.insert(0, qgisprefix + '/share/qgis/python')
sys.path.insert(1, qgisprefix + '/share/qgis/python/plugins')
sys.path.insert(2, qgisprefix + '/local/share/qgis/python')
sys.path.insert(3, qgisprefix + '/local/share/qgis/python/plugins')
from safe.common.testing import get_qgis_app
QGIS_APP, CANVAS, IFACE, PARENT = get_qgis_app()
import processing
# initalise processing plugin with dummy iface object
plugin = processing.classFactory(IFACE)