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79 lines
3.7 KiB
Python
79 lines
3.7 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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SplitRGBBands.py
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---------------------
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Date : August 2012
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Copyright : (C) 2012 by Victor Olaya
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Email : volayaf 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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from processing.core.ProcessingUtils import ProcessingUtils
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from processing.core.QGisLayers import QGisLayers
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from processing.saga.SagaUtils import SagaUtils
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__author__ = 'Victor Olaya'
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__date__ = 'August 2012'
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__copyright__ = '(C) 2012, Victor Olaya'
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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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from PyQt4 import QtGui
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from processing.core.GeoAlgorithm import GeoAlgorithm
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from processing.parameters.ParameterRaster import ParameterRaster
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from processing.outputs.OutputRaster import OutputRaster
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import os
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class SplitRGBBands(GeoAlgorithm):
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INPUT = "INPUT"
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R = "R"
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G = "G"
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B = "B"
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def getIcon(self):
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return QtGui.QIcon(os.path.dirname(__file__) + "/../images/saga.png")
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def defineCharacteristics(self):
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self.name = "Split RGB bands"
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self.group = "Grid - Tools"
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self.addParameter(ParameterRaster(SplitRGBBands.INPUT, "Input layer", False))
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self.addOutput(OutputRaster(SplitRGBBands.R, "Output R band layer"))
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self.addOutput(OutputRaster(SplitRGBBands.G, "Output G band layer"))
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self.addOutput(OutputRaster(SplitRGBBands.B, "Output B band layer"))
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def processAlgorithm(self, progress):
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#TODO:check correct num of bands
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input = self.getParameterValue(SplitRGBBands.INPUT)
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temp = ProcessingUtils.getTempFilename(None).replace('.','');
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basename = os.path.basename(temp)
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validChars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
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safeBasename = ''.join(c for c in basename if c in validChars)
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temp = os.path.join(os.path.dirname(temp), safeBasename)
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r = self.getOutputValue(SplitRGBBands.R)
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g = self.getOutputValue(SplitRGBBands.G)
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b = self.getOutputValue(SplitRGBBands.B)
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commands = []
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if ProcessingUtils.isWindows():
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commands.append("io_gdal 0 -GRIDS \"" + temp + "\" -FILES \"" + input+"\"")
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commands.append("io_gdal 1 -GRIDS \"" + temp + "_0001.sgrd\" -FORMAT 1 -TYPE 0 -FILE \"" + r + "\"");
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commands.append("io_gdal 1 -GRIDS \"" + temp + "_0002.sgrd\" -FORMAT 1 -TYPE 0 -FILE \"" + g + "\"");
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commands.append("io_gdal 1 -GRIDS \"" + temp + "_0003.sgrd\" -FORMAT 1 -TYPE 0 -FILE \"" + b + "\"");
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else:
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commands.append("libio_gdal 0 -GRIDS \"" + temp + "\" -FILES \"" + input + "\"")
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commands.append("libio_gdal 1 -GRIDS \"" + temp + "_0001.sgrd\" -FORMAT 1 -TYPE 0 -FILE \"" + r + "\"");
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commands.append("libio_gdal 1 -GRIDS \"" + temp + "_0002.sgrd\" -FORMAT 1 -TYPE 0 -FILE \"" + g + "\"");
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commands.append("libio_gdal 1 -GRIDS \"" + temp + "_0003.sgrd\" -FORMAT 1 -TYPE 0 -FILE \"" + b + "\"");
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SagaUtils.createSagaBatchJobFileFromSagaCommands(commands)
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SagaUtils.executeSaga(progress);
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