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82 lines
3.1 KiB
Python
82 lines
3.1 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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DropGeometry.py
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--------------
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Date : November 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__ = 'November 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 qgis.core import (QgsFeatureRequest,
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QgsWkbTypes,
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QgsCoordinateReferenceSystem,
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QgsApplication)
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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 DropGeometry(GeoAlgorithm):
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INPUT_LAYER = 'INPUT_LAYER'
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OUTPUT_TABLE = 'OUTPUT_TABLE'
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def icon(self):
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return QgsApplication.getThemeIcon("/providerQgis.svg")
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def svgIconPath(self):
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return QgsApplication.iconPath("providerQgis.svg")
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def tags(self):
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return self.tr('remove,drop,delete,geometry,objects').split(',')
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def group(self):
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return self.tr('Vector general tools')
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def defineCharacteristics(self):
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self.name, self.i18n_name = self.trAlgorithm('Drop geometries')
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self.addParameter(ParameterVector(self.INPUT_LAYER,
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self.tr('Input layer'), [dataobjects.TYPE_VECTOR_POINT,
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dataobjects.TYPE_VECTOR_LINE,
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dataobjects.TYPE_VECTOR_POLYGON]))
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self.addOutput(OutputVector(self.OUTPUT_TABLE, self.tr('Dropped geometry')))
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def processAlgorithm(self, feedback):
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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_TABLE).getVectorWriter(
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layer.fields(),
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QgsWkbTypes.NoGeometry,
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QgsCoordinateReferenceSystem())
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request = QgsFeatureRequest().setFlags(QgsFeatureRequest.NoGeometry)
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features = vector.features(layer, request)
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total = 100.0 / len(features)
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for current, input_feature in enumerate(features):
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writer.addFeature(input_feature)
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feedback.setProgress(int(current * total))
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del writer
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