How is the position of an internal flag determined?

Hi:
I have been trying to create a program that makes use of SMuFL fonts to render music scores. However, I encountered a problem with determining the position of an internal flag. I am trying to stack FlagInternalUps to Flag16thUp to create arbitrary number of flags for notes. The specification stated that the flag placement should be equally spaced, but I cannot find a value for the y position, or the height of the left-most black pixels. Is there a value for that kind of task? Or should I just hardcode a y spacing to it?
Regards,
William

Received on Monday, 25 April 2022 14:05:13 UTC