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# -*- coding: utf-8 -*-
"""
***************************************************************************
r_drain.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__ = '$Format:%H$'
import os
def checkParameterValuesBeforeExecuting(alg):
""" Verify if we have the right parameters """
if alg.getParameterValue('start_coordinates') and alg.getParameterValue('start_points'):
return alg.tr("You need to set either start coordinates OR a start points vector layer!")
parameters = [alg.getParameterValue(f) for f in ['-c', '-a', '-n']]
paramscore = [f for f in parameters if f]
if len(paramscore) > 1:
return alg.tr("-c, -a, -n parameters are mutually exclusive!")
return None
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