# -*- coding: utf-8 -*-
"""
Linear Colour Component Transfer Function
=========================================
Defines linear encoding / decoding colour component transfer function related
objects:
- :func:`colour.function_linear`
See Also
--------
`RGB Colourspaces Jupyter Notebook
<http://nbviewer.jupyter.org/github/colour-science/colour-notebooks/\
blob/master/notebooks/models/rgb.ipynb>`_
"""
from __future__ import division, unicode_literals
__author__ = 'Colour Developers'
__copyright__ = 'Copyright (C) 2013-2018 - Colour Developers'
__license__ = 'New BSD License - http://opensource.org/licenses/BSD-3-Clause'
__maintainer__ = 'Colour Developers'
__email__ = 'colour-science@googlegroups.com'
__status__ = 'Production'
__all__ = ['function_linear']
[docs]def function_linear(a):
"""
Defines a typical linear encoding / decoding function, essentially a
pass-through function.
Parameters
----------
a : numeric or array_like
Array to encode / decode.
Returns
-------
numeric or ndarray
Encoded / decoded array.
Examples
--------
>>> function_linear(0.18)
0.18
"""
return a