*.angle.4surf.out

This file saves the angle plot of the 4 windows. Since the light will emit at 4 collecting windows, we collect the angle plot of photon when it hits the window. The format of *.angle.4surf.out is

 Angle  photon_top photon_bottom photon_left photon_bottom
 Angle  photon_top photon_bottom photon_left photon_bottom
 Angle  photon_top photon_bottom photon_left photon_bottom
 Angle  photon_top photon_bottom photon_left photon_bottom
 Angle  photon_top photon_bottom photon_left photon_bottom

For example

 0  234 292 434 322
 1  334 282 434 212
 2  434 262 432 542
 3  134 262 414 332
 4  134 132 334 322
 ...
 360  234 212 234 342