def plot_spectrum_locus(x, y, label):
    plt.plot(x, y, 'k-', label=label)
    plt.plot(x[[0, x.size - 1]], y[[0, y.size - 1]], 'k-')
Plot standard spectrum locus
dataset/ETHPy150Open mikrosimage/ColorPipe-tools/utils/matplotlib_helper.py/plot_spectrum_locus