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pep8 --ignore=E111,E128,E201,E202,E203,E211,E221,E222,E225,E226,E227,E231,E241,E261,E265,E272,E302,E303,E501,E701 \
--exclude="ui_*.py,debian/*,python/ext-libs/*" \
.
97 lines
3.6 KiB
Python
97 lines
3.6 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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slopearea.py
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---------------------
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Date : October 2012
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Copyright : (C) 2012 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 2012'
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__copyright__ = '(C) 2012, 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 processing.core.GeoAlgorithm import GeoAlgorithm
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from processing.core.ProcessingConfig import ProcessingConfig
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from processing.core.GeoAlgorithmExecutionException import \
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GeoAlgorithmExecutionException
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from processing.core.parameters import ParameterRaster
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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 TauDEMUtils import TauDEMUtils
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class SlopeArea(GeoAlgorithm):
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SLOPE_GRID = 'SLOPE_GRID'
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AREA_GRID = 'AREA_GRID'
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SLOPE_EXPONENT = 'SLOPE_EXPONENT'
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AREA_EXPONENT = 'AREA_EXPONENT'
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SLOPE_AREA_GRID = 'SLOPE_AREA_GRID'
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def getIcon(self):
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return QIcon(os.path.dirname(__file__) + '/../../images/taudem.png')
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def defineCharacteristics(self):
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self.name = 'Slope Area Combination'
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self.cmdName = 'slopearea'
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self.group = 'Stream Network Analysis tools'
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self.addParameter(ParameterRaster(self.SLOPE_GRID,
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self.tr('Slope Grid'), False))
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self.addParameter(ParameterRaster(self.AREA_GRID,
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self.tr('Contributing Area Grid'), False))
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self.addParameter(ParameterNumber(self.SLOPE_EXPONENT,
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self.tr('Slope Exponent'), 0, None, 2))
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self.addParameter(ParameterNumber(self.AREA_EXPONENT,
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self.tr('Area Exponent'), 0, None, 1))
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self.addOutput(OutputRaster(self.SLOPE_AREA_GRID,
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self.tr('Slope Area Grid')))
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def processAlgorithm(self, progress):
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commands = []
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commands.append(os.path.join(TauDEMUtils.mpiexecPath(), 'mpiexec'))
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processNum = ProcessingConfig.getSetting(TauDEMUtils.MPI_PROCESSES)
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if processNum <= 0:
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raise GeoAlgorithmExecutionException(
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self.tr('Wrong number of MPI processes used. Please set '
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'correct number before running TauDEM algorithms.'))
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commands.append('-n')
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commands.append(str(processNum))
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commands.append(os.path.join(TauDEMUtils.taudemPath(), self.cmdName))
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commands.append('-slp')
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commands.append(self.getParameterValue(self.SLOPE_GRID))
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commands.append('-sca')
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commands.append(self.getParameterValue(self.AREA_GRID))
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commands.append('-par')
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commands.append(str(self.getParameterValue(self.SLOPE_EXPONENT)))
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commands.append(str(self.getParameterValue(self.AREA_EXPONENT)))
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commands.append('-sa')
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commands.append(self.getOutputValue(self.SLOPE_AREA_GRID))
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TauDEMUtils.executeTauDEM(commands, progress)
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