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67 lines
2.6 KiB
Python
67 lines
2.6 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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tpi.py
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---------------------
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Date : October 2013
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Copyright : (C) 2013 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__ = 'October 2013'
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__copyright__ = '(C) 2013, 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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from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
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from processing.core.parameters import ParameterRaster
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from processing.core.parameters import ParameterBoolean
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from processing.core.parameters import ParameterNumber
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from processing.core.outputs import OutputRaster
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from processing.algs.gdal.GdalUtils import GdalUtils
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class tpi(GdalAlgorithm):
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INPUT = 'INPUT'
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BAND = 'BAND'
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COMPUTE_EDGES = 'COMPUTE_EDGES'
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OUTPUT = 'OUTPUT'
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def defineCharacteristics(self):
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self.name, self.i18n_name = self.trAlgorithm('TPI (Topographic Position Index)')
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self.group, self.i18n_group = self.trAlgorithm('[GDAL] Analysis')
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self.addParameter(ParameterRaster(self.INPUT, self.tr('Input layer')))
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self.addParameter(ParameterNumber(self.BAND,
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self.tr('Band number'), 1, 99, 1))
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self.addParameter(ParameterBoolean(self.COMPUTE_EDGES,
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self.tr('Compute edges'), False))
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self.addOutput(OutputRaster(self.OUTPUT, self.tr('Topographic Position Index')))
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def getConsoleCommands(self):
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arguments = ['TPI']
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arguments.append(unicode(self.getParameterValue(self.INPUT)))
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arguments.append(unicode(self.getOutputValue(self.OUTPUT)))
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arguments.append('-b')
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arguments.append(unicode(self.getParameterValue(self.BAND)))
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if self.getParameterValue(self.COMPUTE_EDGES):
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arguments.append('-compute_edges')
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return ['gdaldem', GdalUtils.escapeAndJoin(arguments)]
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