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172 lines
7.5 KiB
Python
172 lines
7.5 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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translate.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.PyQt.QtGui import QIcon
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from qgis.core import (QgsProcessingParameterRasterLayer,
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QgsProcessingParameterNumber,
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QgsProcessingParameterBoolean,
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QgsProcessingParameterString,
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QgsProcessingParameterEnum,
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QgsProcessingParameterCrs,
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QgsProcessingParameterExtent,
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QgsProcessingParameterRasterDestination,
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QgsProcessingUtils)
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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 translate(GdalAlgorithm):
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INPUT = 'INPUT'
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OUTPUT = 'OUTPUT'
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OUTSIZE = 'OUTSIZE'
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OUTSIZE_PERC = 'OUTSIZE_PERC'
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NO_DATA = 'NO_DATA'
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EXPAND = 'EXPAND'
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PROJWIN = 'PROJWIN'
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SRS = 'SRS'
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SDS = 'SDS'
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RTYPE = 'RTYPE'
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OPTIONS = 'OPTIONS'
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TYPE = ['Byte', 'Int16', 'UInt16', 'UInt32', 'Int32', 'Float32', 'Float64']
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def icon(self):
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return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'translate.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')))
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self.addParameter(QgsProcessingParameterNumber(self.OUTSIZE,
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self.tr('Set the size of the output file (In pixels or %)'),
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minValue=1, defaultValue=100))
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self.addParameter(QgsProcessingParameterBoolean(self.OUTSIZE_PERC,
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self.tr('Output size is a percentage of input size'), defaultValue=True))
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self.addParameter(QgsProcessingParameterString(self.NO_DATA,
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self.tr("Nodata value, leave blank to take the nodata value from input"),
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defaultValue='', optional=True))
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self.addParameter(QgsProcessingParameterEnum(self.EXPAND,
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self.tr('Expand'), options=['none', 'gray', 'rgb', 'rgba'], defaultValue=0))
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self.addParameter(QgsProcessingParameterCrs(self.SRS,
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self.tr('Output projection for output file [leave blank to use input projection]'), defaultValue=None, optional=True))
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self.addParameter(QgsProcessingParameterExtent(self.PROJWIN,
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self.tr('Subset based on georeferenced coordinates'), optional=True))
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self.addParameter(QgsProcessingParameterBoolean(self.SDS,
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self.tr('Copy all subdatasets of this file to individual output files'),
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defaultValue=False))
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create_options_param = QgsProcessingParameterString(self.OPTIONS,
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self.tr('Additional creation options'),
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optional=True)
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create_options_param.setMetadata({'widget_wrapper': 'processing.algs.gdal.ui.RasterOptionsWidget.RasterOptionsWidgetWrapper'})
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self.addParameter(create_options_param)
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self.addParameter(QgsProcessingParameterEnum(self.RTYPE,
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self.tr('Output raster type'),
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options=self.TYPE, defaultValue=5))
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self.addParameter(QgsProcessingParameterRasterDestination(self.OUTPUT, self.tr('Converted')))
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def name(self):
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return 'translate'
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def displayName(self):
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return self.tr('Translate (convert format)')
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def group(self):
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return self.tr('Raster conversion')
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def getConsoleCommands(self, parameters, context, feedback):
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inLayer = self.parameterAsRasterLayer(parameters, self.INPUT, context)
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out = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
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outsize = str(self.parameterAsInt(parameters, self.OUTSIZE, context))
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outsizePerc = self.parameterAsBool(parameters, self.OUTSIZE_PERC, context)
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noData = self.parameterAsString(parameters, self.NO_DATA, context)
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expand = self.parameterDefinition(self.EXPAND).options()[self.parameterAsEnum(parameters, self.EXPAND, context)]
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proj_extent = self.parameterAsExtent(parameters, self.PROJWIN, context)
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if proj_extent.isNull():
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proj_extent = QgsProcessingUtils.combineLayerExtents([inLayer])
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crsId = self.parameterAsCrs(parameters, self.SRS, context).authid()
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sds = self.parameterAsBool(parameters, self.SDS, context)
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opts = self.parameterAsString(parameters, self.OPTIONS, context)
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if noData is not None:
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noData = str(noData)
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arguments = []
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arguments.append('-of')
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arguments.append(GdalUtils.getFormatShortNameFromFilename(out))
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arguments.append('-ot')
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arguments.append(self.TYPE[self.parameterAsEnum(parameters, self.RTYPE, context)])
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if outsizePerc:
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arguments.append('-outsize')
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arguments.append(outsize + '%')
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arguments.append(outsize + '%')
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else:
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arguments.append('-outsize')
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arguments.append(outsize)
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arguments.append(outsize)
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if noData and len(noData) > 0:
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arguments.append('-a_nodata')
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arguments.append(noData)
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if expand != 'none':
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arguments.append('-expand')
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arguments.append(expand)
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try:
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projwin = []
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projwin.append('-projwin')
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projwin.append(proj_extent.xMinimum())
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projwin.append(proj_extent.yMaximum())
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projwin.append(proj_extent.xMaximum())
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projwin.append(proj_extent.yMinimum())
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except IndexError:
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projwin = []
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if projwin:
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arguments.extend(projwin)
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if crsId:
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arguments.append('-a_srs')
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arguments.append(str(crsId))
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if sds:
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arguments.append('-sds')
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if opts:
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arguments.append('-co')
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arguments.append(opts)
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arguments.append(inLayer.source())
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arguments.append(out)
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return ['gdal_translate', GdalUtils.escapeAndJoin(arguments)]
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