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			164 lines
		
	
	
		
			7.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			164 lines
		
	
	
		
			7.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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    self.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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# 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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from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
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from processing.core.parameters import ParameterRaster
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from processing.core.parameters import ParameterSelection
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from processing.core.parameters import ParameterCrs
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from processing.core.parameters import ParameterNumber
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from processing.core.parameters import ParameterString
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from processing.core.parameters import ParameterBoolean
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from processing.core.outputs import OutputRaster
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from processing.algs.gdal.GdalUtils import GdalUtils
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class warp(GdalAlgorithm):
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    INPUT = 'INPUT'
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    OUTPUT = 'OUTPUT'
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    SOURCE_SRS = 'SOURCE_SRS'
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    DEST_SRS = 'DEST_SRS'
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    METHOD = 'METHOD'
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    METHOD_OPTIONS = ['near', 'bilinear', 'cubic', 'cubicspline', 'lanczos']
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    TR = 'TR'
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    NO_DATA = 'NO_DATA'
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    EXTRA = 'EXTRA'
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    RTYPE = 'RTYPE'
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    TYPE = ['Byte', 'Int16', 'UInt16', 'UInt32', 'Int32', 'Float32', 'Float64']
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    TILED = 'TILED'
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    COMPRESS = 'COMPRESS'
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    JPEGCOMPRESSION = 'JPEGCOMPRESSION'
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    PREDICTOR = 'PREDICTOR'
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    ZLEVEL = 'ZLEVEL'
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    BIGTIFF = 'BIGTIFF'
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    BIGTIFFTYPE = ['', 'YES', 'NO', 'IF_NEEDED', 'IF_SAFER']
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    COMPRESSTYPE = ['NONE', 'JPEG', 'LZW', 'PACKBITS', 'DEFLATE']
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    TFW = 'TFW'
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    def defineCharacteristics(self):
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        self.name, self.i18n_name = self.trAlgorithm('Warp (reproject)')
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        self.group, self.i18n_group = self.trAlgorithm('[GDAL] Projections')
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        self.addParameter(ParameterRaster(self.INPUT, self.tr('Input layer'), False))
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        self.addParameter(ParameterCrs(self.SOURCE_SRS,
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                                       self.tr('Source SRS'), ''))
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        self.addParameter(ParameterCrs(self.DEST_SRS,
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                                       self.tr('Destination SRS'), ''))
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        self.addParameter(ParameterString(self.NO_DATA,
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                                          self.tr("Nodata value, leave blank to take the nodata value from input"),
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                                          '-9999'))
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        self.addParameter(ParameterNumber(self.TR,
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                                          self.tr('Output file resolution in target georeferenced units (leave 0 for no change)'),
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                                          0.0, None, 0.0))
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        self.addParameter(ParameterSelection(self.METHOD,
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                                             self.tr('Resampling method'), self.METHOD_OPTIONS))
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        params = []
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        params.append(ParameterSelection(self.RTYPE,
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                                         self.tr('Output raster type'), self.TYPE, 5))
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        params.append(ParameterSelection(self.COMPRESS,
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                                         self.tr('GeoTIFF options. Compression type:'), self.COMPRESSTYPE, 4))
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        params.append(ParameterNumber(self.JPEGCOMPRESSION,
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                                      self.tr('Set the JPEG compression level'),
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                                      1, 100, 75))
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        params.append(ParameterNumber(self.ZLEVEL,
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                                      self.tr('Set the DEFLATE compression level'),
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                                      1, 9, 6))
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        params.append(ParameterNumber(self.PREDICTOR,
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                                      self.tr('Set the predictor for LZW or DEFLATE compression'),
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                                      1, 3, 1))
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        params.append(ParameterBoolean(self.TILED,
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                                       self.tr('Create tiled output (only used for the GTiff format)'), False))
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        params.append(ParameterSelection(self.BIGTIFF,
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                                         self.tr('Control whether the created file is a BigTIFF or a classic TIFF'), self.BIGTIFFTYPE, 0))
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        params.append(ParameterBoolean(self.TFW,
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                                       self.tr('Force the generation of an associated ESRI world file (.tfw))'), False))
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        params.append(ParameterString(self.EXTRA,
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                                      self.tr('Additional creation parameters'), '', optional=True))
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        for param in params:
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            param.isAdvanced = True
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            self.addParameter(param)
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        self.addOutput(OutputRaster(self.OUTPUT, self.tr('Reprojected')))
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    def getConsoleCommands(self):
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        noData = unicode(self.getParameterValue(self.NO_DATA))
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        srccrs = self.getParameterValue(self.SOURCE_SRS)
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        dstcrs = self.getParameterValue(self.DEST_SRS)
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        jpegcompression = unicode(self.getParameterValue(self.JPEGCOMPRESSION))
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        predictor = unicode(self.getParameterValue(self.PREDICTOR))
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        zlevel = unicode(self.getParameterValue(self.ZLEVEL))
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        tiled = unicode(self.getParameterValue(self.TILED))
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        compress = self.COMPRESSTYPE[self.getParameterValue(self.COMPRESS)]
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        bigtiff = self.BIGTIFFTYPE[self.getParameterValue(self.BIGTIFF)]
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        tfw = unicode(self.getParameterValue(self.TFW))
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        arguments = []
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        arguments.append('-ot')
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        arguments.append(self.TYPE[self.getParameterValue(self.RTYPE)])
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        if len(srccrs) > 0:
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            arguments.append('-s_srs')
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            arguments.append(srccrs)
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        if len(dstcrs) > 0:
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            arguments.append('-t_srs')
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            arguments.append(dstcrs)
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        if len(noData) > 0:
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            arguments.append('-dstnodata')
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            arguments.append(noData)
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        arguments.append('-r')
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        arguments.append(
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            self.METHOD_OPTIONS[self.getParameterValue(self.METHOD)])
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        arguments.append('-of')
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        out = self.getOutputValue(self.OUTPUT)
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        arguments.append(GdalUtils.getFormatShortNameFromFilename(out))
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        if self.getParameterValue(self.TR) != 0:
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            arguments.append('-tr')
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            arguments.append(unicode(self.getParameterValue(self.TR)))
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            arguments.append(unicode(self.getParameterValue(self.TR)))
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        extra = unicode(self.getParameterValue(self.EXTRA))
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        if len(extra) > 0:
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            arguments.append(extra)
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        if GdalUtils.getFormatShortNameFromFilename(out) == "GTiff":
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            arguments.append("-co COMPRESS=" + compress)
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            if compress == 'JPEG':
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                arguments.append("-co JPEG_QUALITY=" + jpegcompression)
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            elif (compress == 'LZW') or (compress == 'DEFLATE'):
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                arguments.append("-co PREDICTOR=" + predictor)
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            if compress == 'DEFLATE':
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                arguments.append("-co ZLEVEL=" + zlevel)
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            if tiled == "True":
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                arguments.append("-co TILED=YES")
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            if tfw == "True":
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                arguments.append("-co TFW=YES")
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            if len(bigtiff) > 0:
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                arguments.append("-co BIGTIFF=" + bigtiff)
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        arguments.append(self.getParameterValue(self.INPUT))
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        arguments.append(out)
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        return ['gdalwarp', GdalUtils.escapeAndJoin(arguments)]
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