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128 lines
5.5 KiB
Python
128 lines
5.5 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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gdalinfo.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 (QgsProcessingException,
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QgsProcessingParameterDefinition,
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QgsProcessingParameterString,
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QgsProcessingParameterRasterLayer,
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QgsProcessingParameterBoolean,
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QgsProcessingParameterFileDestination)
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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 gdalinfo(GdalAlgorithm):
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INPUT = 'INPUT'
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MIN_MAX = 'MIN_MAX'
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STATS = 'STATS'
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NO_GCP = 'NOGCP'
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NO_METADATA = 'NO_METADATA'
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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.addParameter(QgsProcessingParameterRasterLayer(self.INPUT,
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self.tr('Input layer')))
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self.addParameter(QgsProcessingParameterBoolean(self.MIN_MAX,
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self.tr('Force computation of the actual min/max values for each band'),
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defaultValue=False))
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self.addParameter(QgsProcessingParameterBoolean(self.STATS,
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self.tr('Read and display image statistics (force computation if necessary)'),
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defaultValue=False))
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self.addParameter(QgsProcessingParameterBoolean(self.NO_GCP,
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self.tr('Suppress GCP info'),
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defaultValue=False))
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self.addParameter(QgsProcessingParameterBoolean(self.NO_METADATA,
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self.tr('Suppress metadata info'),
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defaultValue=False))
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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.FlagAdvanced)
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self.addParameter(extra_param)
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self.addParameter(QgsProcessingParameterFileDestination(self.OUTPUT,
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self.tr('Layer information'),
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self.tr('HTML files (*.html)')))
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def name(self):
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return 'gdalinfo'
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def displayName(self):
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return self.tr('Raster information')
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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 icon(self):
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return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'raster-info.png'))
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def commandName(self):
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return 'gdalinfo'
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def getConsoleCommands(self, parameters, context, feedback, executing=True):
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arguments = []
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if self.parameterAsBoolean(parameters, self.MIN_MAX, context):
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arguments.append('-mm')
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if self.parameterAsBoolean(parameters, self.STATS, context):
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arguments.append('-stats')
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if self.parameterAsBoolean(parameters, self.NO_GCP, context):
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arguments.append('-nogcp')
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if self.parameterAsBoolean(parameters, self.NO_METADATA, context):
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arguments.append('-nomd')
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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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raster = self.parameterAsRasterLayer(parameters, self.INPUT, context)
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if raster is None:
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raise QgsProcessingException(self.invalidRasterError(parameters, self.INPUT))
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arguments.append(raster.source())
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return [self.commandName(), GdalUtils.escapeAndJoin(arguments)]
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def processAlgorithm(self, parameters, context, feedback):
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GdalUtils.runGdal(self.getConsoleCommands(parameters, context, feedback), feedback)
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output = self.parameterAsFileOutput(parameters, self.OUTPUT, context)
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with open(output, 'w') as f:
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f.write('<pre>')
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for s in GdalUtils.getConsoleOutput()[1:]:
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f.write(str(s))
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f.write('</pre>')
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return {self.OUTPUT: output}
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