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# -*- coding: utf-8 -*-
"""
***************************************************************************
rgb2pct.py
---------------------
Date : August 2012
Copyright : (C) 2012 by Victor Olaya
Email : volayaf 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__ = 'Victor Olaya'
__date__ = 'August 2012'
__copyright__ = '(C) 2012, Victor Olaya'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
from processing.parameters.ParameterRaster import ParameterRaster
from processing.parameters.ParameterNumber import ParameterNumber
from processing.outputs.OutputRaster import OutputRaster
from processing.tools.system import *
from processing.algs.gdal.GdalUtils import GdalUtils
class rgb2pct(GdalAlgorithm):
INPUT = 'INPUT'
OUTPUT = 'OUTPUT'
NCOLORS = 'NCOLORS'
def defineCharacteristics(self):
self.name = 'RGB to PCT'
self.group = '[GDAL] Conversion'
self.addParameter(ParameterRaster(rgb2pct.INPUT, 'Input layer', False))
self.addParameter(ParameterNumber(rgb2pct.NCOLORS, 'Number of colors',
1, None, 2))
self.addOutput(OutputRaster(rgb2pct.OUTPUT, 'Output layer'))
def processAlgorithm(self, progress):
arguments = []
arguments.append('-n')
arguments.append(str(self.getParameterValue(rgb2pct.NCOLORS)))
arguments.append('-of')
out = self.getOutputValue(rgb2pct.OUTPUT)
arguments.append(GdalUtils.getFormatShortNameFromFilename(out))
arguments.append(self.getParameterValue(rgb2pct.INPUT))
arguments.append(out)
if isWindows():
commands = ['cmd.exe', '/C ', 'rgb2pct.bat',
GdalUtils.escapeAndJoin(arguments)]
else:
commands = ['rgb2pct.py', GdalUtils.escapeAndJoin(arguments)]
GdalUtils.runGdal(commands, progress)
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