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124 lines
5.2 KiB
Python
124 lines
5.2 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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dropanalysis.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 ParameterVector
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from processing.core.parameters import ParameterNumber
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from processing.core.parameters import ParameterSelection
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from processing.core.outputs import OutputFile
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from TauDEMUtils import TauDEMUtils
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class DropAnalysis(GeoAlgorithm):
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PIT_FILLED_GRID = 'PIT_FILLED_GRID'
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D8_CONTRIB_AREA_GRID = 'D8_CONTRIB_AREA_GRID'
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D8_FLOW_DIR_GRID = 'D8_FLOW_DIR_GRID'
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ACCUM_STREAM_SOURCE_GRID = 'ACCUM_STREAM_SOURCE_GRID'
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OUTLETS_SHAPE = 'OUTLETS_SHAPE'
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MIN_TRESHOLD = 'MIN_TRESHOLD'
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MAX_THRESHOLD = 'MAX_THRESHOLD'
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TRESHOLD_NUM = 'TRESHOLD_NUM'
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STEP_TYPE = 'STEP_TYPE'
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DROP_ANALYSIS_FILE = 'DROP_ANALYSIS_FILE'
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STEPS = ['Logarithmic', 'Linear']
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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, self.i18n_name = self.trAlgorithm('Stream Drop Analysis')
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self.cmdName = 'dropanalysis'
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self.group, self.i18n_group = self.trAlgorithm('Stream Network Analysis tools')
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self.addParameter(ParameterRaster(self.D8_CONTRIB_AREA_GRID,
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self.tr('D8 Contributing Area Grid'), False))
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self.addParameter(ParameterRaster(self.D8_FLOW_DIR_GRID,
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self.tr('D8 Flow Direction Grid'), False))
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self.addParameter(ParameterRaster(self.PIT_FILLED_GRID,
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self.tr('Pit Filled Elevation Grid'), False))
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self.addParameter(ParameterRaster(self.ACCUM_STREAM_SOURCE_GRID,
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self.tr('Accumulated Stream Source Grid'), False))
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self.addParameter(ParameterVector(self.OUTLETS_SHAPE,
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self.tr('Outlets Shapefile'),
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[ParameterVector.VECTOR_TYPE_POINT], False))
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self.addParameter(ParameterNumber(self.MIN_TRESHOLD,
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self.tr('Minimum Threshold'), 0, None, 5))
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self.addParameter(ParameterNumber(self.MAX_THRESHOLD,
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self.tr('Maximum Threshold'), 0, None, 500))
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self.addParameter(ParameterNumber(self.TRESHOLD_NUM,
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self.tr('Number of Threshold Values'), 0, None, 10))
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self.addParameter(ParameterSelection(self.STEP_TYPE,
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self.tr('Spacing for Threshold Values'), self.STEPS, 0))
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self.addOutput(OutputFile(self.DROP_ANALYSIS_FILE,
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self.tr('D-Infinity Drop to Stream 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('-ad8')
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commands.append(self.getParameterValue(self.D8_CONTRIB_AREA_GRID))
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commands.append('-p')
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commands.append(self.getParameterValue(self.D8_FLOW_DIR_GRID))
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commands.append('-fel')
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commands.append(self.getParameterValue(self.PIT_FILLED_GRID))
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commands.append('-ssa')
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commands.append(self.getParameterValue(self.ACCUM_STREAM_SOURCE_GRID))
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commands.append('-o')
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commands.append(self.getParameterValue(self.OUTLETS_SHAPE))
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commands.append('-par')
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commands.append(str(self.getParameterValue(self.MIN_TRESHOLD)))
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commands.append(str(self.getParameterValue(self.MAX_THRESHOLD)))
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commands.append(str(self.getParameterValue(self.TRESHOLD_NUM)))
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commands.append(str(self.getParameterValue(self.STEPS)))
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commands.append('-drp')
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commands.append(self.getOutputValue(self.DROP_ANALYSIS_FILE))
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TauDEMUtils.executeTauDEM(commands, progress)
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