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79 lines
2.9 KiB
Python
79 lines
2.9 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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polygonize.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 PyQt4 import QtGui, QtCore
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from processing.core.GeoAlgorithm import GeoAlgorithm
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from processing.parameters.ParameterRaster import ParameterRaster
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from processing.parameters.ParameterString import ParameterString
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from processing.outputs.OutputVector import OutputVector
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from processing.tools.system import *
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from processing.gdal.GdalUtils import GdalUtils
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class polygonize(GeoAlgorithm):
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INPUT = 'INPUT'
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OUTPUT = 'OUTPUT'
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FIELD = 'FIELD'
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def getIcon(self):
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filepath = os.path.dirname(__file__) + '/icons/polygonize.png'
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return QtGui.QIcon(filepath)
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def commandLineName(self):
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return "gdalogr:polygonize"
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def defineCharacteristics(self):
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self.name = 'Polygonize (raster to vector)'
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self.group = '[GDAL] Conversion'
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self.addParameter(ParameterRaster(polygonize.INPUT, 'Input layer',
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False))
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self.addParameter(ParameterString(polygonize.FIELD, 'Output field name'
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, 'DN'))
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self.addOutput(OutputVector(polygonize.OUTPUT, 'Output layer'))
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def processAlgorithm(self, progress):
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arguments = []
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arguments.append(self.getParameterValue(polygonize.INPUT))
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arguments.append('-f')
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arguments.append('ESRI Shapefile')
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output = self.getOutputValue(polygonize.OUTPUT)
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arguments.append(output)
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arguments.append(QtCore.QFileInfo(output).baseName())
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arguments.append(self.getParameterValue(polygonize.FIELD))
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commands = []
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if isWindows():
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commands = ['cmd.exe', '/C ', 'gdal_polygonize.bat',
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GdalUtils.escapeAndJoin(arguments)]
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else:
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commands = ['gdal_polygonize.py',
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GdalUtils.escapeAndJoin(arguments)]
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GdalUtils.runGdal(commands, progress)
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