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1e661e37b9
Simply removes any geometries from an input layer and returns the features with attributes only
67 lines
2.5 KiB
Python
67 lines
2.5 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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RemoveNullGeometry.py
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--------------
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Date : October 2016
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Copyright : (C) 2016 by Nyall Dawson
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Email : nyall dot dawson 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__ = 'Nyall Dawson'
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__date__ = 'October 2016'
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__copyright__ = '(C) 2016, Nyall Dawson'
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# This will get replaced with a git SHA1 when you do a git archive323
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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.tools import dataobjects, vector
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class RemoveNullGeometry(GeoAlgorithm):
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INPUT_LAYER = 'INPUT_LAYER'
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OUTPUT_LAYER = 'OUTPUT_LAYER'
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def defineCharacteristics(self):
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self.name, self.i18n_name = self.trAlgorithm('Remove null geometries')
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self.group, self.i18n_group = self.trAlgorithm('Vector selection tools')
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self.tags = self.tr('remove,drop,delete,empty,geometry')
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self.addParameter(ParameterVector(self.INPUT_LAYER,
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self.tr('Input layer'), [dataobjects.TYPE_VECTOR_ANY]))
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self.addOutput(OutputVector(self.OUTPUT_LAYER, self.tr('Removed null geometry')))
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def processAlgorithm(self, progress):
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layer = dataobjects.getObjectFromUri(
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self.getParameterValue(self.INPUT_LAYER))
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writer = self.getOutputFromName(
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self.OUTPUT_LAYER).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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total = 100.0 / len(features)
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for current, input_feature in enumerate(features):
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if input_feature.hasGeometry():
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writer.addFeature(input_feature)
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progress.setPercentage(int(current * total))
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del writer
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