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e38849d750
Correctly generate commands when run on eg /vsis3/ layer sources, and translate credential options to "--config KEY VALUE" arguments for GDAL commands
144 lines
6.4 KiB
Python
144 lines
6.4 KiB
Python
"""
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***************************************************************************
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pansharp.py
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---------------------
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Date : March 2019
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Copyright : (C) 2019 by Alexander Bruy
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Email : alexander dot bruy 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__ = 'Alexander Bruy'
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__date__ = 'March 2019'
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__copyright__ = '(C) 2019, Alexander Bruy'
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import os
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from qgis.core import (QgsRasterFileWriter,
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QgsProcessingException,
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QgsProcessingParameterDefinition,
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QgsProcessingParameterRasterLayer,
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QgsProcessingParameterEnum,
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QgsProcessingParameterString,
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QgsProcessingParameterRasterDestination)
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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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from processing.tools.system import isWindows
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pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
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class pansharp(GdalAlgorithm):
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SPECTRAL = 'SPECTRAL'
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PANCHROMATIC = 'PANCHROMATIC'
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RESAMPLING = 'RESAMPLING'
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OPTIONS = 'OPTIONS'
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EXTRA = 'EXTRA'
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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.methods = ((self.tr('Nearest Neighbour'), 'nearest'),
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(self.tr('Bilinear (2x2 Kernel)'), 'bilinear'),
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(self.tr('Cubic (4x4 Kernel)'), 'cubic'),
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(self.tr('Cubic B-Spline (4x4 Kernel)'), 'cubicspline'),
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(self.tr('Lanczos (6x6 Kernel)'), 'lanczos'),
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(self.tr('Average'), 'average'))
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self.addParameter(QgsProcessingParameterRasterLayer(self.SPECTRAL,
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self.tr('Spectral dataset')))
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self.addParameter(QgsProcessingParameterRasterLayer(self.PANCHROMATIC,
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self.tr('Panchromatic dataset')))
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resampling_param = QgsProcessingParameterEnum(self.RESAMPLING,
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self.tr('Resampling algorithm'),
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options=[i[0] for i in self.methods],
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defaultValue=2)
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resampling_param.setFlags(resampling_param.flags() | QgsProcessingParameterDefinition.Flag.FlagAdvanced)
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self.addParameter(resampling_param)
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options_param = QgsProcessingParameterString(self.OPTIONS,
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self.tr('Additional creation options'),
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defaultValue='',
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optional=True)
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options_param.setFlags(options_param.flags() | QgsProcessingParameterDefinition.Flag.FlagAdvanced)
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options_param.setMetadata({'widget_wrapper': {'widget_type': 'rasteroptions'}})
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self.addParameter(options_param)
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extra_param = QgsProcessingParameterString(self.EXTRA,
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self.tr('Additional command-line parameters'),
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defaultValue=None,
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optional=True)
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extra_param.setFlags(extra_param.flags() | QgsProcessingParameterDefinition.Flag.FlagAdvanced)
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self.addParameter(extra_param)
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self.addParameter(QgsProcessingParameterRasterDestination(self.OUTPUT,
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self.tr('Output')))
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def name(self):
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return 'pansharp'
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def displayName(self):
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return self.tr('Pansharpening')
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def group(self):
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return self.tr('Raster miscellaneous')
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def groupId(self):
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return 'rastermiscellaneous'
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def commandName(self):
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return 'gdal_pansharpen'
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def getConsoleCommands(self, parameters, context, feedback, executing=True):
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spectral = self.parameterAsRasterLayer(parameters, self.SPECTRAL, context)
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if spectral is None:
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raise QgsProcessingException(self.invalidRasterError(parameters, self.SPECTRAL))
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spectral_input_details = GdalUtils.gdal_connection_details_from_layer(spectral)
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panchromatic = self.parameterAsRasterLayer(parameters, self.PANCHROMATIC, context)
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if panchromatic is None:
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raise QgsProcessingException(self.invalidRasterError(parameters, self.PANCHROMATIC))
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panchromatic_input_details = GdalUtils.gdal_connection_details_from_layer(
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panchromatic)
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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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panchromatic_input_details.connection_string,
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spectral_input_details.connection_string,
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out,
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'-r',
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self.methods[self.parameterAsEnum(parameters, self.RESAMPLING, context)][1],
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'-of',
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output_format
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]
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if panchromatic_input_details.credential_options:
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arguments.extend(panchromatic_input_details.credential_options_as_arguments())
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options = self.parameterAsString(parameters, self.OPTIONS, context)
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if options:
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arguments.extend(GdalUtils.parseCreationOptions(options))
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if self.EXTRA in parameters and parameters[self.EXTRA] not in (None, ''):
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extra = self.parameterAsString(parameters, self.EXTRA, context)
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arguments.append(extra)
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return [self.commandName() + ('.bat' if isWindows() else '.py'), GdalUtils.escapeAndJoin(arguments)]
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