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36 lines
1.5 KiB
Python
36 lines
1.5 KiB
Python
"""
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***************************************************************************
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v_reclass.py
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----------
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Date : June 2023
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Copyright : (C) 2023 by Andrea Giudiceandrea
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Email : andreaerdna at libero dot it
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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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* any later version. *
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* *
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***************************************************************************
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"""
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__author__ = "Andrea Giudiceandrea"
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__date__ = "June 2023"
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__copyright__ = "(C) 2023, Andrea Giudiceandrea"
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from qgis.PyQt.QtCore import QCoreApplication
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def checkParameterValuesBeforeExecuting(alg, parameters, context):
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"""Verify if we have the right parameters"""
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# rules and column parameters are mutually exclusive
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rules = alg.parameterAsString(parameters, "rules", context)
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column = alg.parameterAsString(parameters, "column", context)
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if (rules and column) or (not rules and not column):
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return False, QCoreApplication.translate(
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"GrassAlgorithmExt", "You need to set either a rules file or a column!"
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)
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return True, None
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