Source of Particle tracking

Dear All,
I have a problem with the result of particle tracking simulation, the location of source in simulation is different from the cordinate that i input into its model,
Any suggestion?

Regards
Ikka

That sound's strange. If you are looking at results, are you sure that the 1st time frame in the result corresponds to the time the particles appear (i.e. maybe you do not see all timesteps)? Btw, are you refering to npt or m21fm-pt? Is the source given in the same projection than the setup?

Dear Michael,

Thank you so much for the explanation. I use m21fm-pt. That's right, the problem occured right after when the particle first appeared.

I also would like to ask, is it possible to display the particle after the simulation is just started?

Thank you again for your assistance.

Regards,