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117 lines
4.4 KiB
Python
117 lines
4.4 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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proximity.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 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 ParameterString
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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.outputs import OutputRaster
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from processing.tools.system import *
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from processing.algs.gdal.GdalUtils import GdalUtils
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class proximity(GdalAlgorithm):
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INPUT = 'INPUT'
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VALUES = 'VALUES'
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UNITS = 'UNITS'
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MAX_DIST = 'MAX_DIST'
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NODATA = 'NODATA'
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BUF_VAL = 'BUF_VAL'
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OUTPUT = 'OUTPUT'
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RTYPE = 'RTYPE'
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TYPE = ['Byte','Int16','UInt16','UInt32','Int32','Float32','Float64','CInt16','CInt32','CFloat32','CFloat64']
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DISTUNITS = ['GEO', 'PIXEL']
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def commandLineName(self):
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return "gdalogr:proximity"
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def defineCharacteristics(self):
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self.name = 'Proximity (raster distance)'
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self.group = '[GDAL] Analysis'
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self.addParameter(ParameterRaster(self.INPUT, 'Input layer', False))
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self.addParameter(ParameterString(self.VALUES, 'Values', ''))
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self.addParameter(ParameterSelection(self.UNITS, 'Dist units',
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self.DISTUNITS, 0))
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self.addParameter(ParameterNumber(self.MAX_DIST,
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'Max dist (negative value to ignore)', -1, 9999, -1))
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self.addParameter(ParameterNumber(self.NODATA,
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'No data (negative value to ignore)', -1, 9999, -1))
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self.addParameter(ParameterNumber(self.BUF_VAL,
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'Fixed buf val (negative value to ignore)', -1,
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9999, -1))
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self.addParameter(ParameterSelection(self.RTYPE, 'Output raster type',
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self.TYPE, 5))
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self.addOutput(OutputRaster(self.OUTPUT, 'Output layer'))
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def processAlgorithm(self, progress):
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output = self.getOutputValue(self.OUTPUT)
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arguments = []
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arguments.append('-ot')
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arguments.append(self.TYPE[self.getParameterValue(self.RTYPE)])
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arguments.append(self.getParameterValue(self.INPUT))
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arguments.append(output)
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arguments.append('-of')
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arguments.append(GdalUtils.getFormatShortNameFromFilename(output))
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arguments.append('-distunits')
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arguments.append(self.DISTUNITS[self.getParameterValue(self.UNITS)])
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values = self.getParameterValue(self.VALUES)
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if len(values) > 0:
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arguments.append('-values')
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arguments.append(values)
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values = str(self.getParameterValue(self.MAX_DIST))
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if values < 0:
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arguments.append('-maxdist')
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arguments.append(values)
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values = str(self.getParameterValue(self.NODATA))
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if values < 0:
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arguments.append('-nodata')
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arguments.append(values)
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values = str(self.getParameterValue(self.BUF_VAL))
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if values < 0:
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arguments.append('-fixed-buf-val')
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arguments.append(values)
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commands = []
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if isWindows():
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commands = ['cmd.exe', '/C ', 'gdal_proximity.bat',
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GdalUtils.escapeAndJoin(arguments)]
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else:
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commands = ['gdal_proximity.py',
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GdalUtils.escapeAndJoin(arguments)]
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GdalUtils.runGdal(commands, progress) |