QGIS/python/plugins/processing/algs/taudem/dinfdistup_multi.py

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# -*- coding: utf-8 -*-
"""
***************************************************************************
dinfdistup_multi.py
---------------------
Date : March 2015
Copyright : (C) 2015 by Alexander Bruy
Email : alexander dot bruy at gmail dot com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************
"""
__author__ = 'Alexander Bruy'
__date__ = 'March 2015'
__copyright__ = '(C) 2015, Alexander Bruy'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import os
from PyQt4.QtGui import QIcon
from processing.core.GeoAlgorithm import GeoAlgorithm
from processing.core.ProcessingConfig import ProcessingConfig
from processing.core.GeoAlgorithmExecutionException import \
GeoAlgorithmExecutionException
from processing.core.parameters import ParameterFile
from processing.core.parameters import ParameterNumber
from processing.core.parameters import ParameterBoolean
from processing.core.parameters import ParameterSelection
from processing.core.outputs import OutputDirectory
from TauDEMUtils import TauDEMUtils
class DinfDistUpMulti(GeoAlgorithm):
DINF_FLOW_DIR_GRID = 'DINF_FLOW_DIR_GRID'
PIT_FILLED_GRID = 'PIT_FILLED_GRID'
SLOPE_GRID = 'SLOPE_GRID'
THRESHOLD = 'THRESHOLD'
STAT_METHOD = 'STAT_METHOD'
DIST_METHOD = 'DIST_METHOD'
EDGE_CONTAM = 'EDGE_CONTAM'
DIST_UP_GRID = 'DIST_UP_GRID'
STATISTICS = ['Minimum', 'Maximum', 'Average']
STAT_DICT = {0: 'min', 1: 'max', 2: 'ave'}
DISTANCE = ['Pythagoras', 'Horizontal', 'Vertical', 'Surface']
DIST_DICT = {
0: 'p',
1: 'h',
2: 'v',
3: 's',
}
def getIcon(self):
return QIcon(os.path.dirname(__file__) + '/../../images/taudem.png')
def defineCharacteristics(self):
self.name = 'D-Infinity Distance Up (multifile)'
self.cmdName = 'dinfdistup'
self.group = 'Specialized Grid Analysis tools'
self.addParameter(ParameterFile(self.DINF_FLOW_DIR_GRID,
self.tr('D-Infinity Flow Direction Grid'), True, False))
self.addParameter(ParameterFile(self.PIT_FILLED_GRID,
self.tr('Pit Filled Elevation Grid'), True, False))
self.addParameter(ParameterFile(self.SLOPE_GRID,
self.tr('Slope Grid'), True, False))
self.addParameter(ParameterSelection(self.STAT_METHOD,
self.tr('Statistical Method'), self.STATISTICS, 2))
self.addParameter(ParameterSelection(self.DIST_METHOD,
self.tr('Distance Method'), self.DISTANCE, 1))
self.addParameter(ParameterNumber(self.THRESHOLD,
self.tr('Proportion Threshold'), 0, None, 0.5))
self.addParameter(ParameterBoolean(self.EDGE_CONTAM,
self.tr('Check for edge contamination'), True))
self.addOutput(OutputDirectory(self.DIST_UP_GRID,
self.tr('D-Infinity Distance Up')))
def processAlgorithm(self, progress):
commands = []
commands.append(os.path.join(TauDEMUtils.mpiexecPath(), 'mpiexec'))
processNum = ProcessingConfig.getSetting(TauDEMUtils.MPI_PROCESSES)
if processNum <= 0:
raise GeoAlgorithmExecutionException(
self.tr('Wrong number of MPI processes used. Please set '
'correct number before running TauDEM algorithms.'))
commands.append('-n')
commands.append(str(processNum))
commands.append(os.path.join(TauDEMUtils.taudemMultifilePath(), self.cmdName))
commands.append('-ang')
commands.append(self.getParameterValue(self.DINF_FLOW_DIR_GRID))
commands.append('-fel')
commands.append(self.getParameterValue(self.PIT_FILLED_GRID))
commands.append('-m')
commands.append(str(self.STAT_DICT[self.getParameterValue(
self.STAT_METHOD)]))
commands.append(str(self.DIST_DICT[self.getParameterValue(
self.DIST_METHOD)]))
commands.append('-thresh')
commands.append(str(self.getParameterValue(self.THRESHOLD)))
if str(self.getParameterValue(self.EDGE_CONTAM)).lower() == 'false':
commands.append('-nc')
commands.append('-du')
commands.append(self.getOutputValue(self.DIST_UP_GRID))
TauDEMUtils.executeTauDEM(commands, progress)