Hi All, I am trying to use Root in acquisition system for gamma spectroscopy, and have a couple of probably naive questions. After creating a TCanvas instance, ToggleEventStatus() method will display in the status bar the cross hair position as nr. of channels. What I am interested in, is to display the cursor position in terms of energy. E.g. for a 0.25 keV/ch, I want an energy of 100 to be displayed as the x coordinate in the status bar, when the cursor is above channel 400. Also, I would like to know how can avoid having the x coordinate being displayed in scientific format for x > 1000, when the cross hair is not precisely on the histogram contour. Finally, I can find the peaks automatically, but I can't figure out how to display automatically and nicely the energy corresponding to a particular peak, above the peak, on the histogram. I would very much appreciate any help, and/or references to samples of code. Best regards, Constantin Vaman, SUNY at Stony Brook.
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