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127 lines
5.2 KiB
Python
127 lines
5.2 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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dinfdistdown.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 GeoAlgorithmExecutionException
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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 ParameterSelection
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from processing.core.outputs import OutputRaster
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from TauDEMUtils import TauDEMUtils
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class DinfDistDown(GeoAlgorithm):
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DINF_FLOW_DIR_GRID = 'DINF_FLOW_DIR_GRID'
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PIT_FILLED_GRID = 'PIT_FILLED_GRID'
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STREAM_GRID = 'STREAM_GRID'
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WEIGHT_PATH_GRID = 'WEIGHT_PATH_GRID'
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STAT_METHOD = 'STAT_METHOD'
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DIST_METHOD = 'DIST_METHOD'
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EDGE_CONTAM = 'EDGE_CONTAM'
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DIST_DOWN_GRID = 'DIST_DOWN_GRID'
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STATISTICS = ['Minimum', 'Maximum', 'Average']
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STAT_DICT = {0: 'min', 1: 'max', 2: 'ave'}
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DISTANCE = ['Pythagoras', 'Horizontal', 'Vertical', 'Surface']
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DIST_DICT = {
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0: 'p',
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1: 'h',
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2: 'v',
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3: 's',
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}
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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('D-Infinity Distance Down')
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self.cmdName = 'dinfdistdown'
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self.group, self.i18n_group = self.trAlgorithm('Specialized Grid Analysis tools')
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self.addParameter(ParameterRaster(self.DINF_FLOW_DIR_GRID,
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self.tr('D-Infinity 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.STREAM_GRID,
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self.tr('Stream Raster Grid'), False))
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self.addParameter(ParameterRaster(self.WEIGHT_PATH_GRID,
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self.tr('Weight Path Grid'), True))
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self.addParameter(ParameterSelection(self.STAT_METHOD,
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self.tr('Statistical Method'), self.STATISTICS, 2))
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self.addParameter(ParameterSelection(self.DIST_METHOD,
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self.tr('Distance Method'), self.DISTANCE, 1))
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self.addParameter(ParameterBoolean(self.EDGE_CONTAM,
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self.tr('Check for edge contamination'), True))
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self.addOutput(OutputRaster(self.DIST_DOWN_GRID,
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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(unicode(processNum))
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commands.append(os.path.join(TauDEMUtils.taudemPath(), self.cmdName))
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commands.append('-ang')
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commands.append(self.getParameterValue(self.DINF_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('-src')
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commands.append(self.getParameterValue(self.STREAM_GRID))
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wg = self.getParameterValue(self.WEIGHT_PATH_GRID)
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if wg is not None:
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commands.append('-wg')
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commands.append(self.getParameterValue(self.WEIGHT_PATH_GRID))
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commands.append('-m')
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commands.append(unicode(self.STAT_DICT[self.getParameterValue(
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self.STAT_METHOD)]))
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commands.append(unicode(self.DIST_DICT[self.getParameterValue(
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self.DIST_METHOD)]))
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if not self.getParameterValue(self.EDGE_CONTAM):
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commands.append('-nc')
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commands.append('-dd')
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commands.append(self.getOutputValue(self.DIST_DOWN_GRID))
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TauDEMUtils.executeTauDEM(commands, progress)
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