GPS Command Example 14:

/gps/particle geantino
/gps/pos/type Plane
/gps/pos/shape Circle
/gps/pos/centre 2. 2. 2. cm
/gps/pos/radius 2. cm
/gps/pos/rot1 1. 0. -0.57735
/gps/ang/type iso
/gps/ene/type Exp
/gps/ene/min 2. MeV
/gps/ene/max 10. MeV
/gps/ene/ezero 1.

Resulted Distribution Plots: