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pep8 --ignore=E111,E128,E201,E202,E203,E211,E221,E222,E225,E226,E227,E231,E241,E261,E265,E272,E302,E303,E501,E701 \
--exclude="ui_*.py,debian/*,python/ext-libs/*" \
.
109 lines
4.4 KiB
Python
109 lines
4.4 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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rasterize.py
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---------------------
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Date : September 2013
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Copyright : (C) 2013 by Alexander Bruy
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Email : alexander dot bruy 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__ = 'Alexander Bruy'
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__date__ = 'September 2013'
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__copyright__ = '(C) 2013, Alexander Bruy'
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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 processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
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from processing.core.parameters import ParameterVector
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from processing.core.parameters import ParameterTableField
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from processing.core.parameters import ParameterSelection
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from processing.core.parameters import ParameterNumber
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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 rasterize(GdalAlgorithm):
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INPUT = 'INPUT'
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FIELD = 'FIELD'
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DIMENSIONS = 'DIMENSIONS'
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WIDTH = 'WIDTH'
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HEIGHT = 'HEIGHT'
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WRITEOVER = 'WRITEOVER'
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RTYPE = 'RTYPE'
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OUTPUT = 'OUTPUT'
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TYPE = ['Byte', 'Int16', 'UInt16', 'UInt32', 'Int32', 'Float32', 'Float64',
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'CInt16', 'CInt32', 'CFloat32', 'CFloat64']
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def commandLineName(self):
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return "gdalogr:rasterize"
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def defineCharacteristics(self):
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self.name = 'Rasterize (vector to raster)'
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self.group = '[GDAL] Conversion'
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self.addParameter(ParameterVector(self.INPUT, self.tr('Input layer')))
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self.addParameter(ParameterTableField(self.FIELD,
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self.tr('Attribute field'), self.INPUT))
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self.addParameter(ParameterBoolean(self.WRITEOVER,
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self.tr('Write values inside an existing raster layer(*)'), False))
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self.addParameter(ParameterSelection(self.DIMENSIONS,
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self.tr('Set output raster size (ignored if above option is checked)'),
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['Output size in pixels', 'Output resolution in map units per pixel'], 1))
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self.addParameter(ParameterNumber(self.WIDTH,
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self.tr('Horizontal'), 0.0, 99999999.999999, 100.0))
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self.addParameter(ParameterNumber(self.HEIGHT,
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self.tr('Vertical'), 0.0, 99999999.999999, 100.0))
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self.addParameter(ParameterSelection(self.RTYPE, self.tr('Raster type'),
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self.TYPE, 0))
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self.addOutput(OutputRaster(self.OUTPUT,
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self.tr('Output layer: mandatory to choose an existing raster layer if the (*) option is selected')))
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def processAlgorithm(self, progress):
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writeOver = self.getParameterValue(self.WRITEOVER)
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arguments = []
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arguments.append('-a')
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arguments.append(str(self.getParameterValue(self.FIELD)))
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if not writeOver:
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arguments.append('-ot')
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arguments.append(self.TYPE[self.getParameterValue(self.RTYPE)])
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dimType = self.getParameterValue(self.DIMENSIONS)
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if dimType == 0:
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# size in pixels
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arguments.append('-ts')
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arguments.append(str(self.getParameterValue(self.WIDTH)))
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arguments.append(str(self.getParameterValue(self.HEIGHT)))
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else:
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# resolution in map units per pixel
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arguments.append('-tr')
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arguments.append(str(self.getParameterValue(self.WIDTH)))
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arguments.append(str(self.getParameterValue(self.HEIGHT)))
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arguments.append('-l')
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arguments.append(
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os.path.basename(os.path.splitext(unicode(self.getParameterValue(self.INPUT)))[0]))
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arguments.append(unicode(self.getParameterValue(self.INPUT)))
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arguments.append(unicode(self.getOutputValue(self.OUTPUT)))
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GdalUtils.runGdal(['gdal_rasterize',
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GdalUtils.escapeAndJoin(arguments)], progress)
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