Accessing calorimeter towers within specific region

[Cauê Evangelista de Sousa]

Hi, dear authors.

I was wondering if there is a way to scan over a region in the eta-phi space collecting the energy stored in the calorimeter towers.

I know that we can loop over all the towers of some event as it is shown in the "examples/Example3.C", but I need to focus on the towers within a very specific region.

My goal here is to divide this region into a grid, scan over all the pixels of this so-called grid(using a for loop), and store the energy of each pixel in an array.

There is a way to access the energy associated with some point (eta0,phi0)?