Groove Radar

[DossarLX ODI]

I use Stepmania 3.9 so I'm not sure how much different the groove radar codes are for other versions. However, what I'm wondering is how someone could make it so the groove radar, instead of making those calculations in NoteDataUtil.cpp where 150 BPM 16ths and 400 BPM 16ths give the same voltage value, the groove radar gets the values directly from the .sm file.

For instance, the decimal numbers I show here in the .sm are useless because the game has a built in calculator already and it doesn't fetch it

//---------------dance-single - ----------------
#NOTES:
dance-single:
:
Challenge:
10:
0.966,1.000,0.804,0.542,0.206:

Since there are other people who know way more about the technical mechanics of stepmania than I do and the documentation in the source code package is poor (at least for 3.9), I'd like to know how one could make it so the program fetches the .sm file's numbers.