How to plot the "F" illuminants?

[blue-j]

colour.plotting.plot_single_illuminant_sd

It seems none of the F illuminant spectra are available to being plotted? Expected, or issue?

J

[KelSolaar]

Hi @blue-j,

I tested a few e.g. colour.plotting.plot_single_illuminant_sd("FL3.4") and colour.plotting.plot_single_illuminant_sd("FL2") and both worked fine.

Can you please let use know which environment your are using, i.e. colour.utilities.describe_environment and which called you made?

Cheers,

Thomas

[blue-j]

I was using "F2" and the like, not "FL2." I can't find anywhere that uses the "FL" convention - is it CIE convention?

• J

[blue-j]

(I see now that the CIE in Colorimetry (4th) uses FL)

[blue-j]

just for the record:

`import colour
from colour.plotting import plot_single_illuminant_sd
import numpy as np

plot_single_illuminant_sd("FL2")

colour.plotting.render(
diagram_opacity=1,
title="",
standalone=False,
x_ticker=True,
y_ticker=True,
x_label="Wavelength λ [nm]",
y_label="Relative Power",
axes_visible=True,
transparent_background=True,
filename="illuminant_spectrum_legend.svg"
)`