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[processing] expose Aspect from Raster terrain analysis plugin in too…
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# -*- coding: utf-8 -*- | ||
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""" | ||
*************************************************************************** | ||
Aspect.py | ||
--------------------- | ||
Date : October 2016 | ||
Copyright : (C) 2016 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. * | ||
* * | ||
*************************************************************************** | ||
""" | ||
from builtins import str | ||
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__author__ = 'Alexander Bruy' | ||
__date__ = 'October 2016' | ||
__copyright__ = '(C) 2016, 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 qgis.analysis import QgsAspectFilter | ||
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from processing.core.GeoAlgorithm import GeoAlgorithm | ||
from processing.core.parameters import ParameterRaster | ||
from processing.core.parameters import ParameterNumber | ||
from processing.core.outputs import OutputRaster | ||
from processing.tools import raster | ||
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class Aspect(GeoAlgorithm): | ||
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INPUT_LAYER = 'INPUT_LAYER' | ||
Z_FACTOR = 'Z_FACTOR' | ||
OUTPUT_LAYER = 'OUTPUT_LAYER' | ||
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def defineCharacteristics(self): | ||
self.name, self.i18n_name = self.trAlgorithm('Aspect') | ||
self.group, self.i18n_group = self.trAlgorithm('Raster terrain analysis') | ||
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self.addParameter(ParameterRaster(self.INPUT_LAYER, | ||
self.tr('Elevation layer'))) | ||
self.addParameter(ParameterNumber(self.Z_FACTOR, | ||
self.tr('Z factor'), 1.0, 999999.99, 1.0)) | ||
self.addOutput(OutputRaster(self.OUTPUT_LAYER, | ||
self.tr('Aspect'))) | ||
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def processAlgorithm(self, progress): | ||
inputFile = self.getParameterValue(self.INPUT_LAYER) | ||
zFactor = self.getParameterValue(self.Z_FACTOR) | ||
outputFile = self.getOutputValue(self.OUTPUT_LAYER) | ||
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outputFormat = raster.formatShortNameFromFileName(outputFile) | ||
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aspect = QgsAspectFilter(inputFile, outputFile, outputFormat) | ||
aspect.setZFactor(zFactor) | ||
aspect.processRaster(None) |
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