def executeAlgorithm(self):
alg = self.algorithmTree.selectedAlgorithm().create(
) if self.algorithmTree.selectedAlgorithm() is not None else None
if alg is not None:
ok, message = alg.canExecute()
if not ok:
dlg = MessageDialog()
dlg.setTitle(self.tr('Error executing algorithm'))
dlg.setMessage(
self.tr('<h3>This algorithm cannot '
'be run :-( </h3>\n{0}').format(message))
dlg.exec_()
return
if self.in_place_mode and not [
d for d in alg.parameterDefinitions()
if d.name() not in ('INPUT', 'OUTPUT')
]:
parameters = {}
feedback = MessageBarProgress(algname=alg.displayName())
ok, results = execute_in_place(alg,
parameters,
feedback=feedback)
if ok:
iface.messageBar().pushSuccess(
'',
self.tr('{} complete').format(alg.displayName()))
feedback.close()
# MessageBarProgress handles errors
return
if alg.countVisibleParameters() > 0:
dlg = alg.createCustomParametersWidget(self)
if not dlg:
dlg = AlgorithmDialog(alg, self.in_place_mode,
iface.mainWindow())
dlg.setAttribute(Qt.WA_DeleteOnClose)
canvas = iface.mapCanvas()
prevMapTool = canvas.mapTool()
dlg.show()
dlg.exec_()
if canvas.mapTool() != prevMapTool:
try:
canvas.mapTool().reset()
except:
pass
canvas.setMapTool(prevMapTool)
else:
feedback = MessageBarProgress(algname=alg.displayName())
context = dataobjects.createContext(feedback)
parameters = {}
ret, results = execute(alg, parameters, context, feedback)
handleAlgorithmResults(alg, context, feedback)
feedback.close()
def executeAlgorithm(self):
alg = self.algorithmTree.selectedAlgorithm().create() if self.algorithmTree.selectedAlgorithm() is not None else None
if alg is not None:
ok, message = alg.canExecute()
if not ok:
dlg = MessageDialog()
dlg.setTitle(self.tr('Error executing algorithm'))
dlg.setMessage(
self.tr('<h3>This algorithm cannot '
'be run :-( </h3>\n{0}').format(message))
dlg.exec_()
return
if self.in_place_mode and not [d for d in alg.parameterDefinitions() if d.name() not in ('INPUT', 'OUTPUT')]:
parameters = {}
feedback = MessageBarProgress(algname=alg.displayName())
ok, results = execute_in_place(alg, parameters, feedback=feedback)
if ok:
iface.messageBar().pushSuccess('', self.tr('{} complete').format(alg.displayName()))
feedback.close()
# MessageBarProgress handles errors
return
if alg.countVisibleParameters() > 0:
dlg = alg.createCustomParametersWidget(self)
if not dlg:
dlg = AlgorithmDialog(alg, self.in_place_mode, iface.mainWindow())
dlg.setAttribute(Qt.WA_DeleteOnClose)
canvas = iface.mapCanvas()
prevMapTool = canvas.mapTool()
dlg.show()
dlg.exec_()
if canvas.mapTool() != prevMapTool:
try:
canvas.mapTool().reset()
except:
pass
canvas.setMapTool(prevMapTool)
else:
feedback = MessageBarProgress(algname=alg.displayName())
context = dataobjects.createContext(feedback)
parameters = {}
ret, results = execute(alg, parameters, context, feedback)
handleAlgorithmResults(alg, context, feedback)
feedback.close()
def executeAlgorithm(self, alg_id, parent, in_place=False, as_batch=False):
"""Executes a project model with GUI interaction if needed.
:param alg_id: algorithm id
:type alg_id: string
:param parent: parent widget
:type parent: QWidget
:param in_place: in place flag, defaults to False
:type in_place: bool, optional
:param as_batch: execute as batch flag, defaults to False
:type as_batch: bool, optional
"""
config = {}
if in_place:
config['IN_PLACE'] = True
alg = QgsApplication.instance().processingRegistry(
).createAlgorithmById(alg_id, config)
if alg is not None:
ok, message = alg.canExecute()
if not ok:
dlg = MessageDialog()
dlg.setTitle(self.tr('Error executing algorithm'))
dlg.setMessage(
self.tr('<h3>This algorithm cannot '
'be run :-( </h3>\n{0}').format(message))
dlg.exec_()
return
if as_batch:
dlg = BatchAlgorithmDialog(alg, iface.mainWindow())
dlg.setAttribute(Qt.WA_DeleteOnClose)
dlg.show()
dlg.exec_()
else:
in_place_input_parameter_name = 'INPUT'
if hasattr(alg, 'inputParameterName'):
in_place_input_parameter_name = alg.inputParameterName()
if in_place and not [
d
for d in alg.parameterDefinitions() if d.name() not in
(in_place_input_parameter_name, 'OUTPUT')
]:
parameters = {}
feedback = MessageBarProgress(algname=alg.displayName())
ok, results = execute_in_place(alg,
parameters,
feedback=feedback)
if ok:
iface.messageBar().pushSuccess(
'',
self.
tr('{algname} completed. %n feature(s) processed.',
n=results['__count']).format(
algname=alg.displayName()))
feedback.close()
# MessageBarProgress handles errors
return
if alg.countVisibleParameters() > 0:
dlg = alg.createCustomParametersWidget(parent)
if not dlg:
dlg = AlgorithmDialog(alg, in_place,
iface.mainWindow())
canvas = iface.mapCanvas()
prevMapTool = canvas.mapTool()
dlg.show()
dlg.exec_()
if canvas.mapTool() != prevMapTool:
try:
canvas.mapTool().reset()
except Exception:
pass
canvas.setMapTool(prevMapTool)
else:
feedback = MessageBarProgress(algname=alg.displayName())
context = dataobjects.createContext(feedback)
parameters = {}
ret, results = execute(alg, parameters, context, feedback)
handleAlgorithmResults(alg, context, feedback)
feedback.close()
