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103 lines
3.7 KiB
Python
103 lines
3.7 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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DeleteDuplicateGeometries.py
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---------------------
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Date : May 2010
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Copyright : (C) 2010 by Michael Minn
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Email : pyqgis at michaelminn dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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"""
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__author__ = 'Michael Minn'
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__date__ = 'May 2010'
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__copyright__ = '(C) 2010, Michael Minn'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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from qgis.core import (QgsFeatureRequest,
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QgsProcessingException,
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QgsFeatureSink,
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QgsProcessingParameterFeatureSource,
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QgsProcessingParameterFeatureSink)
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from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
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class DeleteDuplicateGeometries(QgisAlgorithm):
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INPUT = 'INPUT'
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OUTPUT = 'OUTPUT'
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def group(self):
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return self.tr('Vector general')
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def groupId(self):
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return 'vectorgeneral'
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def __init__(self):
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super().__init__()
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def initAlgorithm(self, config=None):
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self.addParameter(QgsProcessingParameterFeatureSource(self.INPUT,
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self.tr('Input layer')))
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self.addParameter(QgsProcessingParameterFeatureSink(self.OUTPUT, self.tr('Cleaned')))
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def name(self):
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return 'deleteduplicategeometries'
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def displayName(self):
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return self.tr('Delete duplicate geometries')
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def processAlgorithm(self, parameters, context, feedback):
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source = self.parameterAsSource(parameters, self.INPUT, context)
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if source is None:
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raise QgsProcessingException(self.invalidSourceError(parameters, self.INPUT))
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(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
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source.fields(), source.wkbType(), source.sourceCrs())
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if sink is None:
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raise QgsProcessingException(self.invalidSinkError(parameters, self.OUTPUT))
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features = source.getFeatures(QgsFeatureRequest().setSubsetOfAttributes([]))
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total = 100.0 / source.featureCount() if source.featureCount() else 0
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geoms = dict()
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for current, f in enumerate(features):
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if feedback.isCanceled():
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break
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geoms[f.id()] = f.geometry()
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feedback.setProgress(int(current * total))
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cleaned = dict(geoms)
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for i, g in list(geoms.items()):
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if feedback.isCanceled():
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break
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for j in list(cleaned.keys()):
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if i == j or i not in cleaned:
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continue
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if g.isGeosEqual(cleaned[j]):
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del cleaned[j]
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total = 100.0 / len(cleaned) if cleaned else 1
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request = QgsFeatureRequest().setFilterFids(list(cleaned.keys()))
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for current, f in enumerate(source.getFeatures(request)):
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if feedback.isCanceled():
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break
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sink.addFeature(f, QgsFeatureSink.FastInsert)
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feedback.setProgress(int(current * total))
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return {self.OUTPUT: dest_id}
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