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# -*- coding: utf-8 -*-
"""
***************************************************************************
r_reclass.py
------------
Date : February 2016
Copyright : (C) 2016 by Médéric Ribreux
Email : medspx at medspx dot fr
***************************************************************************
* *
* 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__ = 'Médéric Ribreux'
__date__ = 'February 2016'
__copyright__ = '(C) 2016, Médéric Ribreux'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
def checkParameterValuesBeforeExecuting(alg):
""" Verify if we have the right parameters """
if alg.getParameterValue(u'rules') and alg.getParameterValue(u'txtrules'):
return alg.tr("You need to set either a rules file or write directly the rules!")
return None
def processCommand(alg):
""" Handle inline rules """
txtRules = alg.getParameterValue(u'txtrules')
if txtRules:
# Creates a temporary txt file
tempRulesName = alg.getTempFilename()
# Inject rules into temporary txt file
with open(tempRulesName, "w") as tempRules:
tempRules.write(txtRules)
raster = alg.getParameterValue(u'input')
output = alg.getOutputFromName(u'output')
alg.exportedLayers[output.value] = output.name + alg.uniqueSufix
if raster:
raster = alg.exportedLayers[raster]
command = u"r.reclass input={} rules=- output={} --overwrite < {}".format(
raster, output.name + alg.uniqueSufix, tempRulesName)
alg.commands.append(command)
else:
alg.processCommand()
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