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74 lines
2.7 KiB
Python
74 lines
2.7 KiB
Python
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# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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SpatialIndex.py
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---------------------
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Date : January 2016
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Copyright : (C) 2016 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 2016'
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__copyright__ = '(C) 2016, 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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import os
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from PyQt4.QtGui import QIcon
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from qgis.core import QgsVectorDataProvider
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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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pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
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class SpatialIndex(GeoAlgorithm):
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INPUT = 'INPUT'
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OUTPUT = 'OUTPUT'
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#def getIcon(self):
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# return QIcon(os.path.join(pluginPath, 'images', 'ftools', 'basic_statistics.png'))
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def defineCharacteristics(self):
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self.name, self.i18n_name = self.trAlgorithm('Create spatial index')
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self.group, self.i18n_group = self.trAlgorithm('Vector general tools')
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self.addParameter(ParameterVector(self.INPUT,
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self.tr('Input Layer'),
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[ParameterVector.VECTOR_TYPE_ANY]))
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self.addOutput(OutputVector(self.OUTPUT,
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self.tr('Indexed layer'), True))
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def processAlgorithm(self, progress):
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fileName = self.getParameterValue(self.INPUT)
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layer = dataobjects.getObjectFromUri(fileName)
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provider = layer.dataProvider()
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if provider.capabilities() & QgsVectorDataProvider.CreateSpatialIndex:
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if not provider.createSpatialIndex():
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progress.setInfo(self.tr('Can not create spatial index'))
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else:
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progress.setInfo(self.tr("Layer's data provider does not support "
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"spatial indexes"))
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self.setOutputValue(self.OUTPUT, fileName)
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