def runAndLoadResults(algOrName, parameters, feedback=None, context=None):
"""Executes given algorithm and load its results into QGIS project
when possible.
"""
if isinstance(algOrName, QgsProcessingAlgorithm):
alg = algOrName
else:
alg = QgsApplication.processingRegistry().createAlgorithmById(
algOrName)
# output destination parameters to point to current project
for param in alg.parameterDefinitions():
if not param.name() in parameters:
continue
if isinstance(param, (QgsProcessingParameterFeatureSink,
QgsProcessingParameterVectorDestination,
QgsProcessingParameterRasterDestination)):
p = parameters[param.name()]
if not isinstance(p, QgsProcessingOutputLayerDefinition):
parameters[param.name()] = QgsProcessingOutputLayerDefinition(
p, QgsProject.instance())
else:
p.destinationProject = QgsProject.instance()
parameters[param.name()] = p
return Processing.runAlgorithm(alg,
parameters=parameters,
onFinish=handleAlgorithmResults,
feedback=feedback,
context=context)
def run(algOrName, parameters, onFinish=None, feedback=None, context=None):
"""Executes given algorithm and returns its outputs as dictionary
object.
"""
return Processing.runAlgorithm(algOrName, parameters, onFinish, feedback,
context)