mirror of
https://github.com/qgis/QGIS.git
synced 2025-11-04 00:04:25 -05:00
74 lines
2.7 KiB
Python
74 lines
2.7 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
polygonize.py
|
|
---------------------
|
|
Date : August 2012
|
|
Copyright : (C) 2012 by Victor Olaya
|
|
Email : volayaf 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__ = 'Victor Olaya'
|
|
__date__ = 'August 2012'
|
|
__copyright__ = '(C) 2012, Victor Olaya'
|
|
|
|
# This will get replaced with a git SHA1 when you do a git archive
|
|
|
|
__revision__ = '$Format:%H$'
|
|
|
|
from PyQt4 import QtCore
|
|
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
|
|
from processing.core.parameters import ParameterRaster
|
|
from processing.core.parameters import ParameterString
|
|
from processing.core.outputs import OutputVector
|
|
from processing.tools.system import *
|
|
from processing.algs.gdal.GdalUtils import GdalUtils
|
|
|
|
|
|
class polygonize(GdalAlgorithm):
|
|
|
|
INPUT = 'INPUT'
|
|
OUTPUT = 'OUTPUT'
|
|
FIELD = 'FIELD'
|
|
|
|
def commandLineName(self):
|
|
return "gdalogr:polygonize"
|
|
|
|
def defineCharacteristics(self):
|
|
self.name = 'Polygonize (raster to vector)'
|
|
self.group = '[GDAL] Conversion'
|
|
self.addParameter(ParameterRaster(polygonize.INPUT, 'Input layer',
|
|
False))
|
|
self.addParameter(ParameterString(polygonize.FIELD, 'Output field name'
|
|
, 'DN'))
|
|
self.addOutput(OutputVector(polygonize.OUTPUT, 'Output layer'))
|
|
|
|
def processAlgorithm(self, progress):
|
|
arguments = []
|
|
arguments.append(self.getParameterValue(polygonize.INPUT))
|
|
arguments.append('-f')
|
|
arguments.append('ESRI Shapefile')
|
|
output = self.getOutputValue(polygonize.OUTPUT)
|
|
arguments.append(output)
|
|
arguments.append(QtCore.QFileInfo(output).baseName())
|
|
arguments.append(self.getParameterValue(polygonize.FIELD))
|
|
|
|
commands = []
|
|
if isWindows():
|
|
commands = ['cmd.exe', '/C ', 'gdal_polygonize.bat',
|
|
GdalUtils.escapeAndJoin(arguments)]
|
|
else:
|
|
commands = ['gdal_polygonize.py',
|
|
GdalUtils.escapeAndJoin(arguments)]
|
|
|
|
GdalUtils.runGdal(commands, progress)
|