Projecting data from a 2d histogram on arbitary axis

Hi,

I have some data in 2D histogram and I want to project them bin by bin on an arbitrary axis. My arbitrary axis is perpendicular to a theory curve on my data. How can I do it?
A screen shot of my data attached.

Thanks
Maisam


HI! You have forgotten to attach the screenshot.

Hi,
Thanks dear pamputt, the image have been attached.