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# -*- coding: utf-8 -*-
"""
***************************************************************************
dinfdistdown_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 qgis.PyQt.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 ParameterBoolean
from processing.core.parameters import ParameterSelection
from processing.core.outputs import OutputDirectory
from .TauDEMUtils import TauDEMUtils
class DinfDistDownMulti(GeoAlgorithm):
DINF_FLOW_DIR_GRID = 'DINF_FLOW_DIR_GRID'
PIT_FILLED_GRID = 'PIT_FILLED_GRID'
STREAM_GRID = 'STREAM_GRID'
WEIGHT_PATH_GRID = 'WEIGHT_PATH_GRID'
STAT_METHOD = 'STAT_METHOD'
DIST_METHOD = 'DIST_METHOD'
EDGE_CONTAM = 'EDGE_CONTAM'
DIST_DOWN_GRID = 'DIST_DOWN_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.svg')
def defineCharacteristics(self):
self.name, self.i18n_name = self.trAlgorithm('D-Infinity Distance Down (multifile)')
self.cmdName = 'dinfdistdown'
self.group, self.i18n_group = self.trAlgorithm('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.STREAM_GRID,
self.tr('Stream Raster Grid'), True, False))
self.addParameter(ParameterFile(self.WEIGHT_PATH_GRID,
self.tr('Weight Path Grid'), True, True))
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(ParameterBoolean(self.EDGE_CONTAM,
self.tr('Check for edge contamination'), True))
self.addOutput(OutputDirectory(self.DIST_DOWN_GRID,
self.tr('D-Infinity Drop to Stream Grid')))
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(unicode(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('-src')
commands.append(self.getParameterValue(self.STREAM_GRID))
wg = self.getParameterValue(self.WEIGHT_PATH_GRID)
if wg is not None:
commands.append('-wg')
commands.append(self.getParameterValue(self.WEIGHT_PATH_GRID))
commands.append('-m')
commands.append(unicode(self.STAT_DICT[self.getParameterValue(
self.STAT_METHOD)]))
commands.append(unicode(self.DIST_DICT[self.getParameterValue(
self.DIST_METHOD)]))
if not self.getParameterValue(self.EDGE_CONTAM):
commands.append('-nc')
commands.append('-dd')
commands.append(self.getOutputValue(self.DIST_DOWN_GRID))
TauDEMUtils.executeTauDEM(commands, progress)
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