Image reader class?


I am not sure if this is the right place to ask this question or if ROOT is supposed to include this class but in this page this guy made a very simple and useful application that can help us to read the coordinates (very accurately and fast) of a histogram.

I was wondering if there was a way to do this in ROOT or plans to write something like this. Something like a class that gives us a GUI where we can import a plot so that the class recognizes the axis and the curves (histograms, TF1, Graph…) inside and returns the objects. This would be useful if for instance in ATLAS someone wants to compare an analysis with the corresponding analysis in CMS.


There is nothing exactly like that in ROOT.
But you have the EventStatus option in the View Menu of a Canvas which gives you quite of lot of information about the plot you have on screen. It knows about the ROOT objects and can be extended for a given object if needed. May be having a concrete example would help to understand your exact need.
There is also a proposal here:
It is not yet in ROOT but can be considered to be added if there is requests. You can try, the code is there.