minor differences for results of L-cone- and M-cone-opic data

[DieterLa]

with the example of a LED as defined in CIE 15, 4th ed. as LED B2 (warmwhite 3000 K)
my own results at 1000 lx:
melanopic 607,1 mW 457,7 lx
S-cone-opic 296,1 mW 362,3 lx
M-cone-opic 1173,9 mW 806,3 lx
L-cone-opic 1646,8 mW 1011,0 lx
rhodopic 782,2 mW 539,6 lx

Spectran results:
melanopic 607 mW 458 lx
S-cone-opic 296 mW 362 lx
M-cone-opic 1170 mW 806 lx
L-cone-opic 1650 mW 1010 lx
rhodopic 782 mW 540 lx

The differences are bigger than only rounding to 1.
It looks like rounding to the third relevant digit. E.g. 1646,8 to 1650.
This is not nice.

It fits with issue #5 about number of significant digits.

[JZauner]

You are correct, there is unwanted rounding going on. If you look at the excel export of the spectrum, my results show, e.g.,

1010,77791 L-cone-opic EDI and
1646,45614 L-cone-opic Irradiance

I did use the CIE LED B2 Spectrum provided to me by Christoph Schierz and scaled it to 1000 lx with the factor 683.0015478 lm/W. The results are not identical to your own, but they clearly show that Spectran should round differently.

I will change this.

CIE Standard Illuminant "LED": Blue stimulated 2_1_2023-09-15.xlsx

[JZauner]

This bug was fixed. It will go online in Version 1.0.0 of Spectran