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# -*- coding: utf-8 -*-
"""
***************************************************************************
rasterize.py
---------------------
Date : September 2013
Copyright : (C) 2013 by Alexander Bruy
Email : alexander dot bruy at gmail dot com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************
"""
__author__ = 'Alexander Bruy'
__date__ = 'September 2013'
__copyright__ = '(C) 2013, Alexander Bruy'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
from processing.tools.system import *
from processing.parameters.ParameterVector import ParameterVector
from processing.parameters.ParameterTableField import ParameterTableField
from processing.parameters.ParameterSelection import ParameterSelection
from processing.parameters.ParameterNumber import ParameterNumber
from processing.outputs.OutputRaster import OutputRaster
from processing.algs.gdal.GdalUtils import GdalUtils
class rasterize(GdalAlgorithm):
INPUT = 'INPUT'
FIELD = 'FIELD'
DIMENSIONS = 'DIMENSIONS'
WIDTH = 'WIDTH'
HEIGHT = 'HEIGHT'
OUTPUT = 'OUTPUT'
def commandLineName(self):
return "gdalogr:rasterize"
def defineCharacteristics(self):
self.name = 'Rasterize (vector to raster)'
self.group = '[GDAL] Conversion'
self.addParameter(ParameterVector(self.INPUT, 'Input layer'))
self.addParameter(ParameterTableField(self.FIELD, 'Attribute field',
self.INPUT))
self.addParameter(ParameterSelection(self.DIMENSIONS,
'Set output raster size', ['Output size in pixels',
'Output resolution in map units per pixel'], 0))
self.addParameter(ParameterNumber(self.WIDTH, 'Horizontal', 0.0,
99999999.999999, 3000.0))
self.addParameter(ParameterNumber(self.HEIGHT, 'Vertical', 0.0,
99999999.999999, 3000.0))
self.addOutput(OutputRaster(self.OUTPUT, 'Output layer'))
def processAlgorithm(self, progress):
arguments = []
arguments.append('-a')
arguments.append(str(self.getParameterValue(self.FIELD)))
dimType = self.getParameterValue(self.DIMENSIONS)
if dimType == 0:
# size in pixels
arguments.append('-ts')
else:
# resolution in map units per pixel
arguments.append('-tr')
arguments.append(str(self.getParameterValue(self.WIDTH)))
arguments.append(str(self.getParameterValue(self.HEIGHT)))
arguments.append('-l')
arguments.append(
os.path.basename(os.path.splitext(
unicode(self.getParameterValue(self.INPUT)))[0]))
arguments.append(unicode(self.getParameterValue(self.INPUT)))
arguments.append(unicode(self.getOutputValue(self.OUTPUT)))
GdalUtils.runGdal(['gdal_rasterize',
GdalUtils.escapeAndJoin(arguments)], progress)
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