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98 lines
3.7 KiB
Python
98 lines
3.7 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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from PyQt4 import QtGui
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from processing.core.GeoAlgorithm import GeoAlgorithm
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from processing.tools.system import *
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from processing.parameters.ParameterVector import ParameterVector
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from processing.parameters.ParameterTableField import ParameterTableField
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from processing.parameters.ParameterSelection import ParameterSelection
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from processing.parameters.ParameterNumber import ParameterNumber
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from processing.outputs.OutputRaster import OutputRaster
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from processing.gdal.GdalUtils import GdalUtils
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class rasterize(GeoAlgorithm):
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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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OUTPUT = 'OUTPUT'
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def getIcon(self):
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filepath = os.path.dirname(__file__) + '/icons/rasterize.png'
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return QtGui.QIcon(filepath)
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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, 'Input layer'))
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self.addParameter(ParameterTableField(self.FIELD, 'Attribute field',
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self.INPUT))
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self.addParameter(ParameterSelection(self.DIMENSIONS,
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'Set output raster size', ['Output size in pixels',
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'Output resolution in map units per pixel'], 0))
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self.addParameter(ParameterNumber(self.WIDTH, 'Horizontal', 0.0,
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99999999.999999, 3000.0))
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self.addParameter(ParameterNumber(self.HEIGHT, 'Vertical', 0.0,
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99999999.999999, 3000.0))
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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('-a')
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arguments.append(str(self.getParameterValue(self.FIELD)))
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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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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(
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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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