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91 lines
3.5 KiB
Python
91 lines
3.5 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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from builtins import str
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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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import os
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from qgis.core import (QgsProcessingParameterRasterLayer,
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QgsProcessingParameterBoolean,
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QgsProcessingParameterNumber,
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QgsProcessingParameterRasterDestination)
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from qgis.PyQt.QtGui import QIcon
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from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
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from processing.algs.gdal.GdalUtils import GdalUtils
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pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
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class nearblack(GdalAlgorithm):
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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 icon(self):
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return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'nearblack.png'))
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def __init__(self):
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super().__init__()
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def initAlgorithm(self, config=None):
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self.addParameter(QgsProcessingParameterRasterLayer(self.INPUT, self.tr('Input layer'), False))
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self.addParameter(QgsProcessingParameterNumber(self.NEAR,
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self.tr('How far from black (white)'),
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type=QgsProcessingParameterNumber.Integer, minValue=0, maxValue=15, defaultValue=None))
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self.addParameter(QgsProcessingParameterBoolean(self.WHITE,
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self.tr('Search for nearly white pixels instead of nearly black'),
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defaultValue=False))
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self.addParameter(QgsProcessingParameterRasterDestination(self.OUTPUT, self.tr('Nearblack')))
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def name(self):
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return 'nearblack'
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def displayName(self):
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return self.tr('Near black')
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def group(self):
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return self.tr('Raster analysis')
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def getConsoleCommands(self, parameters, context, feedback):
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out = str(self.parameterAsOutputLayer(parameters, self.OUTPUT, context))
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arguments = []
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arguments.append('-o')
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arguments.append(out)
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arguments.append('-of')
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arguments.append(GdalUtils.getFormatShortNameFromFilename(out))
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arguments.append('-near')
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arguments.append(str(self.parameterAsInt(parameters, self.NEAR, context)))
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if self.parameterAsBool(parameters, self.WHITE, context):
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arguments.append('-white')
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arguments.append(self.parameterAsRasterLayer(parameters, self.INPUT, context).source())
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return ['nearblack', GdalUtils.escapeAndJoin(arguments)]
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