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77 lines
3.0 KiB
Python
77 lines
3.0 KiB
Python
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# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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FixGeometry.py
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-----------------------
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Date : January 2017
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Copyright : (C) 2017 by Alexander Bruy
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Email : alexander dot bruy at gmail 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__ = 'Alexander Bruy'
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__date__ = 'January 2017'
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__copyright__ = '(C) 2017, Alexander Bruy'
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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 processing.core.GeoAlgorithm import GeoAlgorithm
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from processing.core.parameters import ParameterVector
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from processing.core.outputs import OutputVector
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from processing.core.GeoAlgorithmExecutionException import GeoAlgorithmExecutionException
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from processing.tools import dataobjects, vector
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class FixGeometry(GeoAlgorithm):
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INPUT = 'INPUT'
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OUTPUT = 'OUTPUT'
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def defineCharacteristics(self):
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self.name, self.i18n_name = self.trAlgorithm('Fix geometries')
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self.group, self.i18n_group = self.trAlgorithm('Vector geometry tools')
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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,
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self.tr('Layer with fixed geometries')))
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def processAlgorithm(self, feedback):
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layer = dataobjects.getObjectFromUri(
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self.getParameterValue(self.INPUT))
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writer = self.getOutputFromName(
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self.OUTPUT).getVectorWriter(
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layer.fields(),
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layer.wkbType(),
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layer.crs())
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features = vector.features(layer)
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if len(features) == 0:
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raise GeoAlgorithmExecutionException(self.tr('There are no features in the input layer'))
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total = 100.0 / len(features)
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for current, inputFeature in enumerate(features):
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outputFeature = inputFeature
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if inputFeature.geometry():
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outputGeometry = inputFeature.geometry().makeValid()
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if not outputGeometry:
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ProcessingLog.addToLog(ProcessingLog.LOG_WARNING,
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'makeValid failed for feature {}'.format(inputFeature.id()))
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outputFeature.setGeometry(outputGeometry)
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writer.addFeature(outputFeature)
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feedback.setProgress(int(current * total))
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del writer
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