Esempi in Python per ILLUMINANTS_OPTIMAL_COLOUR_STIMULI

Esempio n. 1

def _XYZ_optimal_colour_stimuli(illuminant):
    """
    Returns given illuminant *Optimal Colour Stimuli* in *CIE XYZ* tristimulus
    values and caches it if not existing.

    Parameters
    ----------
    illuminant : unicode
        Illuminant.

    Returns
    -------
    tuple
        Illuminant *Optimal Colour Stimuli*.
    """

    optimal_colour_stimuli = ILLUMINANTS_OPTIMAL_COLOUR_STIMULI.get(illuminant)
    if optimal_colour_stimuli is None:
        raise KeyError('"{0}" not found in factory '
                       '"Optimal Colour Stimuli": "{1}".'.format(
                           illuminant,
                           sorted(ILLUMINANTS_OPTIMAL_COLOUR_STIMULI.keys())))

    cached_ocs = _XYZ_OPTIMAL_COLOUR_STIMULI_CACHE.get(illuminant)
    if cached_ocs is None:
        _XYZ_OPTIMAL_COLOUR_STIMULI_CACHE[illuminant] = cached_ocs = (
            xyY_to_XYZ(optimal_colour_stimuli) / 100)
    return cached_ocs

Esempio n. 2

File: macadam_limits.py Progetto: Nick-Shaw/colour

def _XYZ_optimal_colour_stimuli(illuminant):
    """
    Returns given illuminant optimal colour stimuli in *CIE XYZ* tristimulus
    values and caches it if not existing.

    Parameters
    ----------
    illuminant : unicode
        Illuminant.

    Returns
    -------
    tuple
        Illuminant optimal colour stimuli.
    """

    optimal_colour_stimuli = ILLUMINANTS_OPTIMAL_COLOUR_STIMULI.get(illuminant)

    if optimal_colour_stimuli is None:
        raise KeyError(
            '"{0}" not found in factory optimal colour stimuli: "{1}".'.format(
                illuminant, sorted(ILLUMINANTS_OPTIMAL_COLOUR_STIMULI.keys())))

    cached_ocs = _XYZ_OPTIMAL_COLOUR_STIMULI_CACHE.get(illuminant)
    if cached_ocs is None:
        _XYZ_OPTIMAL_COLOUR_STIMULI_CACHE[illuminant] = cached_ocs = (
            xyY_to_XYZ(optimal_colour_stimuli) / 100)
    return cached_ocs