QGIS/python/plugins/processing/algs/taudem/TauDEMAlgorithm.py
2016-10-04 19:53:21 +03:00

135 lines
5.2 KiB
Python

# -*- coding: utf-8 -*-
"""
***************************************************************************
TauDEMAlgorithm.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. *
* *
***************************************************************************
"""
from future import standard_library
standard_library.install_aliases()
from builtins import str
__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
import codecs
from qgis.PyQt.QtGui import QIcon
from processing.core.GeoAlgorithm import GeoAlgorithm
from processing.core.ProcessingLog import ProcessingLog
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 ParameterBoolean
from processing.core.parameters import ParameterString
from processing.core.parameters import ParameterNumber
from processing.core.parameters import getParameterFromString
from processing.core.outputs import getOutputFromString
from .TauDEMUtils import TauDEMUtils
pluginPath = os.path.normpath(os.path.join(
os.path.split(os.path.dirname(__file__))[0], os.pardir))
class TauDEMAlgorithm(GeoAlgorithm):
def __init__(self, descriptionfile):
GeoAlgorithm.__init__(self)
self.descriptionFile = descriptionfile
self.defineCharacteristicsFromFile()
self._icon = None
def getCopy(self):
newone = TauDEMAlgorithm(self.descriptionFile)
newone.provider = self.provider
return newone
def getIcon(self):
if self._icon is None:
self._icon = QIcon(os.path.join(pluginPath, 'images', 'taudem.svg'))
return self._icon
def defineCharacteristicsFromFile(self):
with codecs.open(self.descriptionFile, encoding='utf-8') as f:
line = f.readline().strip('\n').strip()
self.name = line
self.i18n_name = self.tr(line)
line = f.readline().strip('\n').strip()
self.cmdName = line
line = f.readline().strip('\n').strip()
self.group = line
self.i18n_group = self.tr(line)
line = f.readline().strip('\n').strip()
while line != '':
try:
line = line.strip('\n').strip()
if line.startswith('Parameter'):
param = getParameterFromString(line)
self.addParameter(param)
else:
self.addOutput(getOutputFromString(line))
line = f.readline().strip('\n').strip()
except Exception as e:
ProcessingLog.addToLog(ProcessingLog.LOG_ERROR,
self.tr('Could not load TauDEM algorithm: {}\n{}'.format(self.descriptionFile, line)))
raise e
def processAlgorithm(self, progress):
commands = []
commands.append(os.path.join(TauDEMUtils.mpiexecPath(), 'mpiexec'))
processNum = int(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.taudemPath(), self.cmdName))
for param in self.parameters:
if param.value is None or param.value == '':
continue
if isinstance(param, ParameterNumber):
commands.append(param.name)
commands.append(str(param.value))
if isinstance(param, (ParameterRaster, ParameterVector)):
commands.append(param.name)
commands.append(param.value)
elif isinstance(param, ParameterBoolean):
if not param.value:
commands.append(param.name)
elif isinstance(param, ParameterString):
commands.append(param.name)
commands.append(str(param.value))
for out in self.outputs:
commands.append(out.name)
commands.append(out.value)
TauDEMUtils.executeTauDEM(commands, progress)