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64 lines
2.6 KiB
Python
64 lines
2.6 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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nearblack.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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__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 sextante.core.GeoAlgorithm import GeoAlgorithm
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from sextante.parameters.ParameterRaster import ParameterRaster
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from sextante.parameters.ParameterNumber import ParameterNumber
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from sextante.parameters.ParameterBoolean import ParameterBoolean
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from sextante.outputs.OutputRaster import OutputRaster
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import os
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from sextante.gdal.GdalUtils import GdalUtils
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class nearblack(GeoAlgorithm):
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INPUT = "INPUT"
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OUTPUT = "OUTPUT"
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NEAR = "NEAR"
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WHITE = "WHITE"
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def getIcon(self):
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filepath = os.path.dirname(__file__) + "/icons/nearblack.png"
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return QtGui.QIcon(filepath)
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def defineCharacteristics(self):
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self.name = "nearblack"
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self.group = "Analysis"
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self.addParameter(ParameterRaster(nearblack.INPUT, "Input layer", False))
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self.addParameter(ParameterNumber(nearblack.NEAR, "How far from black (white)", 0, None, 15))
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self.addParameter(ParameterBoolean(nearblack.WHITE, "Search for nearly white pixels instead of nearly black", False))
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self.addOutput(OutputRaster(nearblack.OUTPUT, "Output layer"))
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def processAlgorithm(self, progress):
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commands = ["nearblack"]
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commands.append("-o")
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commands.append(self.getOutputValue(nearblack.OUTPUT))
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commands.append("-near")
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commands.append(str(self.getParameterValue(nearblack.NEAR)))
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if self.getParameterValue(nearblack.WHITE):
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commands.append("-white")
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commands.append(self.getParameterValue(nearblack.INPUT))
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GdalUtils.runGdal(commands, progress)
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