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# -*- coding: utf-8 -*-
"""
***************************************************************************
dropanalysis.py
---------------------
Date : October 2012
Copyright : (C) 2012 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__ = 'October 2012'
__copyright__ = '(C) 2012, 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 ParameterRaster
from processing.core.parameters import ParameterVector
from processing.core.parameters import ParameterNumber
from processing.core.parameters import ParameterSelection
from processing.core.outputs import OutputFile
from .TauDEMUtils import TauDEMUtils
class DropAnalysis(GeoAlgorithm):
PIT_FILLED_GRID = 'PIT_FILLED_GRID'
D8_CONTRIB_AREA_GRID = 'D8_CONTRIB_AREA_GRID'
D8_FLOW_DIR_GRID = 'D8_FLOW_DIR_GRID'
ACCUM_STREAM_SOURCE_GRID = 'ACCUM_STREAM_SOURCE_GRID'
OUTLETS_SHAPE = 'OUTLETS_SHAPE'
MIN_TRESHOLD = 'MIN_TRESHOLD'
MAX_THRESHOLD = 'MAX_THRESHOLD'
TRESHOLD_NUM = 'TRESHOLD_NUM'
STEP_TYPE = 'STEP_TYPE'
DROP_ANALYSIS_FILE = 'DROP_ANALYSIS_FILE'
STEPS = ['Logarithmic', 'Linear']
def getIcon(self):
return QIcon(os.path.dirname(__file__) + '/../../images/taudem.svg')
def defineCharacteristics(self):
self.name, self.i18n_name = self.trAlgorithm('Stream Drop Analysis')
self.cmdName = 'dropanalysis'
self.group, self.i18n_group = self.trAlgorithm('Stream Network Analysis tools')
self.addParameter(ParameterRaster(self.D8_CONTRIB_AREA_GRID,
self.tr('D8 Contributing Area Grid'), False))
self.addParameter(ParameterRaster(self.D8_FLOW_DIR_GRID,
self.tr('D8 Flow Direction Grid'), False))
self.addParameter(ParameterRaster(self.PIT_FILLED_GRID,
self.tr('Pit Filled Elevation Grid'), False))
self.addParameter(ParameterRaster(self.ACCUM_STREAM_SOURCE_GRID,
self.tr('Accumulated Stream Source Grid'), False))
self.addParameter(ParameterVector(self.OUTLETS_SHAPE,
self.tr('Outlets Shapefile'),
[ParameterVector.VECTOR_TYPE_POINT], False))
self.addParameter(ParameterNumber(self.MIN_TRESHOLD,
self.tr('Minimum Threshold'), 0, None, 5))
self.addParameter(ParameterNumber(self.MAX_THRESHOLD,
self.tr('Maximum Threshold'), 0, None, 500))
self.addParameter(ParameterNumber(self.TRESHOLD_NUM,
self.tr('Number of Threshold Values'), 0, None, 10))
self.addParameter(ParameterSelection(self.STEP_TYPE,
self.tr('Spacing for Threshold Values'), self.STEPS, 0))
self.addOutput(OutputFile(self.DROP_ANALYSIS_FILE,
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.taudemPath(), self.cmdName))
commands.append('-ad8')
commands.append(self.getParameterValue(self.D8_CONTRIB_AREA_GRID))
commands.append('-p')
commands.append(self.getParameterValue(self.D8_FLOW_DIR_GRID))
commands.append('-fel')
commands.append(self.getParameterValue(self.PIT_FILLED_GRID))
commands.append('-ssa')
commands.append(self.getParameterValue(self.ACCUM_STREAM_SOURCE_GRID))
commands.append('-o')
commands.append(self.getParameterValue(self.OUTLETS_SHAPE))
commands.append('-par')
commands.append(unicode(self.getParameterValue(self.MIN_TRESHOLD)))
commands.append(unicode(self.getParameterValue(self.MAX_THRESHOLD)))
commands.append(unicode(self.getParameterValue(self.TRESHOLD_NUM)))
commands.append(unicode(self.getParameterValue(self.STEPS)))
commands.append('-drp')
commands.append(self.getOutputValue(self.DROP_ANALYSIS_FILE))
TauDEMUtils.executeTauDEM(commands, progress)
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