HI,
I need to place an arrow (or some kind of line vertical line) at a specific bin in a TH1 (to indicate the location of a cut). I know how to do it using a TArrow, but I need to convert the location of the bin number I’m cutting at to the x y coordinates of the pad - which is not terribly convienient, and changes if I change the size of the axis titles. My current solution is to draw a second histogram with an entry only in the bin I’m cutting at, but that seems like overkill.
Is there any way to get the location of a TH1 bin in the pads x y coordinates?
Thanks,
Andrew