OBSOLET

This is to have a quick view of the lateral structure
of high energy photons and  electrons without saving the
individual particle information.

If you add new histogram, don't forget to put it in
save statement.

evid = #   no  level  age
followed by  kind  idtag


dirx = sin t cos f
diry = sin t sin f
dirz = cos t

atan2(diry, dirx)=tan f
