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113 lines
4.6 KiB
Python
113 lines
4.6 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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gridnet.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 *
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from sextante.core.GeoAlgorithm import GeoAlgorithm
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from sextante.core.SextanteLog import SextanteLog
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from sextante.core.SextanteUtils import SextanteUtils
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from sextante.core.SextanteConfig import SextanteConfig
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from sextante.core.GeoAlgorithmExecutionException import GeoAlgorithmExecutionException
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from sextante.parameters.ParameterRaster import ParameterRaster
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from sextante.parameters.ParameterVector import ParameterVector
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from sextante.parameters.ParameterNumber import ParameterNumber
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from sextante.outputs.OutputRaster import OutputRaster
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from sextante.taudem.TauDEMUtils import TauDEMUtils
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class GridNet(GeoAlgorithm):
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D8_FLOW_DIR_GRID = "D8_FLOW_DIR_GRID"
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OUTLETS_SHAPE = "OUTLETS_SHAPE"
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MASK_GRID = "MASK_GRID"
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THRESHOLD = "THRESHOLD"
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LONGEST_LEN_GRID = "LONGEST_LEN_GRID"
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TOTAL_LEN_GRID = "TOTAL_LEN_GRID"
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STRAHLER_GRID = "STRAHLER_GRID"
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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 = "Grid Network"
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self.cmdName = "gridnet"
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self.group = "Basic Grid Analysis tools"
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self.addParameter(ParameterRaster(self.D8_FLOW_DIR_GRID, "D8 Flow Direction Grid", False))
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self.addParameter(ParameterVector(self.OUTLETS_SHAPE, "Outlets Shapefile", ParameterVector.VECTOR_TYPE_POINT, True))
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self.addParameter(ParameterRaster(self.MASK_GRID, "Mask Grid", True))
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self.addParameter(ParameterNumber(self.THRESHOLD, "Proportion Threshold", 0, None, 100))
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self.addOutput(OutputRaster(self.LONGEST_LEN_GRID, "Longest Upslope Length Grid"))
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self.addOutput(OutputRaster(self.TOTAL_LEN_GRID, "Total Upslope Length Grid"))
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self.addOutput(OutputRaster(self.STRAHLER_GRID, "Strahler Network Order 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 = SextanteConfig.getSetting(TauDEMUtils.MPI_PROCESSES)
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if processNum <= 0:
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raise GeoAlgorithmExecutionException("Wrong number of MPI processes used.\nPlease set correct number before running TauDEM algorithms.")
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commands.append("-n")
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commands.append(str(processNum))
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commands.append(os.path.join(TauDEMUtils.taudemPath(), self.cmdName))
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commands.append("-p")
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commands.append(self.getParameterValue(self.D8_FLOW_DIR_GRID))
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param = self.getParameterValue(self.OUTLETS_SHAPE)
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if param is not None:
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commands.append("-o")
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commands.append(param)
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param = self.getParameterValue(self.MASK_GRID)
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if param is not None:
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commands.append("-mask")
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commands.append(param)
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commands.append("-thresh")
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commands.append(self.getParameterValue(self.THRESHOLD))
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commands.append("-plen")
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commands.append(self.getOutputValue(self.LONGEST_LEN_GRID))
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commands.append("-tlen")
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commands.append(self.getOutputValue(self.TOTAL_LEN_GRID))
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commands.append("-gord")
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commands.append(self.getOutputValue(self.STRAHLER_GRID))
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loglines = []
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loglines.append("TauDEM execution command")
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for line in commands:
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loglines.append(line)
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SextanteLog.addToLog(SextanteLog.LOG_INFO, loglines)
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TauDEMUtils.executeTauDEM(commands, progress)
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#def helpFile(self):
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# return os.path.join(os.path.dirname(__file__), "help", self.cmdName + ".html")
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