The shower file contains the 
, 
, 
coordinates and the energy
of each particles produced in the shower at each tracking step. The
column names are x, y, z, and Energy,
respectively. The shower file may grow very large depending on the
number of samples requested, the energy of the initial particle, and
depending on whether the shower is fully developed.
The shower output file may be plotted directly with the sddsplot toolkit plotting program. For instance,
sddsplot -col=x,z <file> -grapic=dotsplots the
projection of the shower trajectories in <file>
as dots. Since no information on the geometry of the problem is
contained in these output files it may be necessary to overlap the
shower product trajectories with the outline of the regions. The
outline can be generated from the geometry plot file produced by
shower, as explained in the next section.