def processAlgorithm(self, parameters, context, feedback):
"""
Here is where the processing itself takes place.
"""
layerHandler = LayerHandler()
inputLyr = self.parameterAsVectorLayer(
parameters,
self.INPUT,
context
)
onlySelected = self.parameterAsBool(
parameters,
self.SELECTED,
context
)
attributeBlackList = self.parameterAsFields(
parameters,
self.ATTRIBUTE_BLACK_LIST,
context
)
ignoreVirtual = self.parameterAsBool(
parameters,
self.IGNORE_VIRTUAL_FIELDS,
context
)
ignorePK = self.parameterAsBool(
parameters,
self.IGNORE_PK_FIELDS,
context
)
layerHandler.mergeLinesOnLayer(
inputLyr,
feedback=feedback,
onlySelected=onlySelected,
ignoreVirtualFields=ignoreVirtual,
attributeBlackList=attributeBlackList,
excludePrimaryKeys=ignorePK
)
return {self.OUTPUT: inputLyr}
def processAlgorithm(self, parameters, context, feedback):
"""
Here is where the processing itself takes place.
"""
layerHandler = LayerHandler()
algRunner = AlgRunner()
layerHandler = LayerHandler()
inputLyr = self.parameterAsVectorLayer(
parameters,
self.INPUT,
context
)
onlySelected = self.parameterAsBool(
parameters,
self.SELECTED,
context
)
tol = self.parameterAsDouble(
parameters,
self.TOLERANCE,
context
)
attributeBlackList = self.parameterAsFields(
parameters,
self.ATTRIBUTE_BLACK_LIST,
context
)
ignoreVirtual = self.parameterAsBool(
parameters,
self.IGNORE_VIRTUAL_FIELDS,
context
)
ignorePK = self.parameterAsBool(
parameters,
self.IGNORE_PK_FIELDS,
context
)
layerHandler.mergeLinesOnLayer(
inputLyr,
feedback=feedback,
onlySelected=onlySelected,
ignoreVirtualFields=ignoreVirtual,
attributeBlackList=attributeBlackList,
excludePrimaryKeys=ignorePK
)
#aux layer
multiStepFeedback = QgsProcessingMultiStepFeedback(8, feedback)
multiStepFeedback.setCurrentStep(0)
if onlySelected:
multiStepFeedback.pushInfo(self.tr('Building auxiliar layer...'))
coverage = layerHandler.createAndPopulateUnifiedVectorLayer(
[inputLyr],
geomType=QgsWkbTypes.MultiPolygon,
onlySelected=onlySelected,
feedback=multiStepFeedback
)
else:
coverage = inputLyr
#dangles
multiStepFeedback.setCurrentStep(1)
multiStepFeedback.pushInfo(self.tr('Identifying dangles on {layer}...').format(layer=coverage.name()))
dangleLyr = algRunner.runIdentifyDangles(
inputLayer=coverage,
searchRadius=tol,
context=context,
feedback=multiStepFeedback,
onlySelected=False
)
#filter dangles
multiStepFeedback.setCurrentStep(2)
layerHandler.filterDangles(
dangleLyr,
tol,
feedback=multiStepFeedback
)
#snap layer to dangles
multiStepFeedback.setCurrentStep(3)
multiStepFeedback.pushInfo(self.tr('Snapping layer {layer} to dangles...').format(layer=coverage.name()))
algRunner.runSnapLayerOnLayer(
coverage,
dangleLyr,
tol,
context,
feedback=multiStepFeedback,
onlySelected=False, #this is done due to the aux layer usage
behavior=0
)
#inner layer snap
multiStepFeedback.setCurrentStep(4)
multiStepFeedback.pushInfo(self.tr('Snapping layer {layer} with {layer}...').format(layer=coverage.name()))
algRunner.runSnapLayerOnLayer(
coverage,
coverage,
tol,
context,
feedback=multiStepFeedback,
onlySelected=False, #this is done due to the aux layer usage
behavior=0
)
#clean to break lines
multiStepFeedback.setCurrentStep(5)
multiStepFeedback.pushInfo(self.tr('Running clean on {layer}...').format(layer=coverage.name()))
multiStepFeedback.pushInfo(self.tr('Running clean on unified layer...'))
cleanedCoverage, error = algRunner.runClean(
coverage,
[
algRunner.RMSA,
algRunner.Break,
algRunner.RmDupl,
algRunner.RmDangle
],
context,
returnError=True,
snap=snap,
minArea=minArea,
feedback=multiStepFeedback
)
#remove duplicated features
multiStepFeedback.setCurrentStep(6)
multiStepFeedback.pushInfo(self.tr('Removing duplicated features from {layer}...').format(layer=coverage.name()))
algRunner.runRemoveDuplicatedFeatures(
inputLyr=cleanedCoverage,
context=context,
onlySelected=False,
attributeBlackList=attributeBlackList,
excludePrimaryKeys=excludePrimaryKeys,
ignorePK=ignorePK,
ignoreVirtual=ignoreVirtual
)
#merging lines with same attributes
multiStepFeedback.setCurrentStep(6)
multiStepFeedback.pushInfo(self.tr('Merging lines from {layer} with same attribute set...').format(layer=coverage.name()))
multiStepFeedback.setCurrentStep(7)
multiStepFeedback.pushInfo(self.tr('Updating original layers...'))
layerHandler.updateOriginalLayersFromUnifiedLayer(
[inputLyr],
coverage,
feedback=multiStepFeedback,
onlySelected=onlySelected
)
return {self.INPUTLAYERS : inputLyrList}