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103 lines
4.2 KiB
Python
103 lines
4.2 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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merge.py
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---------------------
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Date : October 2014
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Copyright : (C) 2014 by Radoslaw Guzinski
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Email : rmgu at dhi-gras 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__ = 'Radoslaw Guzinski'
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__date__ = 'October 2014'
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__copyright__ = '(C) 2014, Radoslaw Guzinski'
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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 processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
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from processing.core.outputs import OutputRaster
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from processing.core.parameters import ParameterBoolean
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from processing.core.parameters import ParameterMultipleInput
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from processing.core.parameters import ParameterSelection
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from processing.algs.gdal.GdalUtils import GdalUtils
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from processing.tools.system import tempFolder
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from processing.tools import dataobjects
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pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
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class buildvrt(GdalAlgorithm):
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INPUT = 'INPUT'
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OUTPUT = 'OUTPUT'
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RESOLUTION = 'RESOLUTION'
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SEPARATE = 'SEPARATE'
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PROJ_DIFFERENCE = 'PROJ_DIFFERENCE'
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RESOLUTION_OPTIONS = ['average', 'highest', 'lowest']
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def __init__(self):
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super().__init__()
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self.addParameter(ParameterMultipleInput(self.INPUT,
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self.tr('Input layers'), dataobjects.TYPE_RASTER))
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self.addParameter(ParameterSelection(self.RESOLUTION,
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self.tr('Resolution'), self.RESOLUTION_OPTIONS, 0))
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self.addParameter(ParameterBoolean(self.SEPARATE,
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self.tr('Layer stack'), True))
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self.addParameter(ParameterBoolean(self.PROJ_DIFFERENCE,
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self.tr('Allow projection difference'), False))
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self.addOutput(OutputRaster(buildvrt.OUTPUT, self.tr('Virtual')))
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def name(self):
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return 'buildvirtualraster'
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def displayName(self):
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return self.tr('Build Virtual Raster')
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def icon(self):
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return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'vrt.png'))
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def group(self):
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return self.tr('Raster miscellaneous')
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def getConsoleCommands(self, parameters):
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arguments = []
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arguments.append('-resolution')
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arguments.append(self.RESOLUTION_OPTIONS[self.getParameterValue(self.RESOLUTION)])
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if self.getParameterValue(buildvrt.SEPARATE):
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arguments.append('-separate')
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if self.getParameterValue(buildvrt.PROJ_DIFFERENCE):
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arguments.append('-allow_projection_difference')
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# Always write input files to a text file in case there are many of them and the
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# length of the command will be longer then allowed in command prompt
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listFile = os.path.join(tempFolder(), 'buildvrtInputFiles.txt')
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with open(listFile, 'w') as f:
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f.write(self.getParameterValue(buildvrt.INPUT).replace(';', '\n'))
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arguments.append('-input_file_list')
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arguments.append(listFile)
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out = self.getOutputValue(buildvrt.OUTPUT)
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# Ideally the file extensions should be limited to just .vrt but I'm not sure how
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# to do it simply so instead a check is performed.
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_, ext = os.path.splitext(out)
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if not ext.lower() == '.vrt':
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out = out.replace(ext, '.vrt')
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self.setOutputValue(self.OUTPUT, out)
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arguments.append(out)
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return ['gdalbuildvrt', GdalUtils.escapeAndJoin(arguments)]
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