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93 lines
3.8 KiB
Python
93 lines
3.8 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 qgis.core import *
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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.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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EXTRA = 'EXTRA'
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def defineCharacteristics(self):
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self.name = 'Warp (reproject)'
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self.group = '[GDAL] Projections'
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self.addParameter(ParameterRaster(self.INPUT, 'Input layer', False))
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self.addParameter(ParameterCrs(self.SOURCE_SRS,
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'Source SRS (EPSG Code)', 'EPSG:4326'))
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self.addParameter(ParameterCrs(self.DEST_SRS,
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'Destination SRS (EPSG Code)', 'EPSG:4326'))
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self.addParameter(ParameterNumber(self.TR,
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'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, 'Resampling method',
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self.METHOD_OPTIONS))
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self.addParameter(ParameterString(self.EXTRA,
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'Additional creation parameters', '', optional=True))
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self.addOutput(OutputRaster(self.OUTPUT, 'Output layer'))
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def processAlgorithm(self, progress):
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arguments = []
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arguments.append('-s_srs')
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arguments.append(str(self.getParameterValue(self.SOURCE_SRS)))
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arguments.append('-t_srs')
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crsId = self.getParameterValue(self.DEST_SRS)
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self.crs = QgsCoordinateReferenceSystem(crsId)
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arguments.append(str(crsId))
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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(str(self.getParameterValue(self.TR)))
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arguments.append(str(self.getParameterValue(self.TR)))
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extra = str(self.getParameterValue(self.EXTRA))
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if len(extra) > 0:
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arguments.append(extra)
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arguments.append(self.getParameterValue(self.INPUT))
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arguments.append(out)
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GdalUtils.runGdal(['gdalwarp', GdalUtils.escapeAndJoin(arguments)],
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progress)
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