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125 lines
4.0 KiB
Python
125 lines
4.0 KiB
Python
"""
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***************************************************************************
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pct2rgb.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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import os
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from qgis.PyQt.QtGui import QIcon
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from qgis.core import (
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QgsRasterFileWriter,
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QgsProcessingException,
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QgsProcessingParameterRasterLayer,
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QgsProcessingParameterBand,
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QgsProcessingParameterBoolean,
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QgsProcessingParameterRasterDestination,
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)
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from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
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from processing.tools.system import isWindows
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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 pct2rgb(GdalAlgorithm):
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INPUT = "INPUT"
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BAND = "BAND"
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RGBA = "RGBA"
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OUTPUT = "OUTPUT"
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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(
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QgsProcessingParameterRasterLayer(self.INPUT, self.tr("Input layer"))
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)
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self.addParameter(
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QgsProcessingParameterBand(
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self.BAND,
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self.tr("Band number"),
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1,
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parentLayerParameterName=self.INPUT,
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)
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)
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self.addParameter(
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QgsProcessingParameterBoolean(
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self.RGBA, self.tr("Generate a RGBA file"), defaultValue=False
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)
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)
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self.addParameter(
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QgsProcessingParameterRasterDestination(self.OUTPUT, self.tr("PCT to RGB"))
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)
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def name(self):
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return "pcttorgb"
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def displayName(self):
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return self.tr("PCT to RGB")
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def group(self):
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return self.tr("Raster conversion")
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def groupId(self):
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return "rasterconversion"
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def icon(self):
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return QIcon(
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os.path.join(pluginPath, "images", "gdaltools", "8-to-24-bits.png")
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)
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def commandName(self):
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return "pct2rgb"
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def getConsoleCommands(self, parameters, context, feedback, executing=True):
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inLayer = self.parameterAsRasterLayer(parameters, self.INPUT, context)
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if inLayer is None:
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raise QgsProcessingException(
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self.invalidRasterError(parameters, self.INPUT)
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)
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input_details = GdalUtils.gdal_connection_details_from_layer(inLayer)
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out = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
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self.setOutputValue(self.OUTPUT, out)
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output_format = QgsRasterFileWriter.driverForExtension(os.path.splitext(out)[1])
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if not output_format:
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raise QgsProcessingException(self.tr("Output format is invalid"))
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arguments = [
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input_details.connection_string,
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out,
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"-of",
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output_format,
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"-b",
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str(self.parameterAsInt(parameters, self.BAND, context)),
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]
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if self.parameterAsBoolean(parameters, self.RGBA, context):
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arguments.append("-rgba")
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if input_details.credential_options:
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arguments.extend(input_details.credential_options_as_arguments())
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return [
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self.commandName() + (".bat" if isWindows() else ".py"),
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GdalUtils.escapeAndJoin(arguments),
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]
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