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75 lines
2.8 KiB
Python
75 lines
2.8 KiB
Python
# -*- 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 qgis.core import (QgsVectorDataProvider,
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QgsProcessingParameterVectorLayer,
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QgsProcessingOutputVectorLayer,
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QgsProcessing)
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from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
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pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
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class SpatialIndex(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')
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def __init__(self):
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super().__init__()
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def initAlgorithm(self, config=None):
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self.addParameter(QgsProcessingParameterVectorLayer(self.INPUT,
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self.tr('Input Layer'),
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[QgsProcessing.TypeVectorPolygon, QgsProcessing.TypeVectorPoint, QgsProcessing.TypeVectorLine]))
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self.addOutput(QgsProcessingOutputVectorLayer(self.OUTPUT, self.tr('Indexed layer')))
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def name(self):
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return 'createspatialindex'
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def displayName(self):
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return self.tr('Create spatial index')
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def processAlgorithm(self, parameters, context, feedback):
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layer = self.parameterAsVectorLayer(parameters, self.INPUT, context)
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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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feedback.pushInfo(self.tr('Could not create spatial index'))
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else:
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feedback.pushInfo(self.tr("Layer's data provider does not support "
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"spatial indexes"))
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return {self.OUTPUT: layer.id()}
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