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b1cadb1822
have specific icons, instead of generic qgis icon We consider these 'top level' algorithms, and using the standard algorithm icon should help reflect this and differentiate them from 3rd party algorithms.
88 lines
3.1 KiB
Python
88 lines
3.1 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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QgsApplication,
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QgsFeatureSink,
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QgsProcessingUtils)
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from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
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from processing.core.parameters import ParameterVector
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from processing.core.outputs import OutputVector
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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 tools')
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def __init__(self):
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super().__init__()
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self.addParameter(ParameterVector(self.INPUT,
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self.tr('Input layer')))
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self.addOutput(OutputVector(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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layer = QgsProcessingUtils.mapLayerFromString(self.getParameterValue(self.INPUT), context)
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fields = layer.fields()
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writer = self.getOutputFromName(self.OUTPUT).getVectorWriter(fields, layer.wkbType(), layer.crs(), context)
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features = QgsProcessingUtils.getFeatures(layer, context)
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total = 100.0 / layer.featureCount() if layer.featureCount() else 0
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geoms = dict()
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for current, f in enumerate(features):
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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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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(layer.getFeatures(request)):
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writer.addFeature(f, QgsFeatureSink.FastInsert)
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feedback.setProgress(int(current * total))
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del writer
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