|Message: Re: GPS SetParticleMomentumDirection||Not Logged In (login)|
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Thanks for your help John.
But in fact, my momentum direction is more complicated than a simple direction (like the example you gave "/gps/direction 1 .5 .3").
My momentum is randomised according to a distribution.
And I'm using GPS because I also have an energy distribution. Otherwise I'd have used the G4ParticleGun only.
That's why I wanted to use the "SetMomentumDirection" with the GPS in my primarygeneratoraction.
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