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b1cadb1822
have specific icons, instead of generic qgis icon We consider these 'top level' algorithms, and using the standard algorithm icon should help reflect this and differentiate them from 3rd party algorithms.
75 lines
2.7 KiB
Python
75 lines
2.7 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 (QgsApplication,
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QgsVectorDataProvider,
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QgsProcessingUtils)
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from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
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from processing.core.parameters import ParameterVector
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from processing.core.outputs import OutputVector
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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 tools')
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def __init__(self):
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super().__init__()
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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('Indexed layer'), True))
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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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fileName = self.getParameterValue(self.INPUT)
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layer = QgsProcessingUtils.mapLayerFromString(fileName, 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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self.setOutputValue(self.OUTPUT, fileName)
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