[yt-users] Particle Positions

[Brian Crosby]

Hi everyone,

I'm trying to find the initial (DD0000) locations of a collection particles that form a halo at a later time.  I have a list of particle IDs from that halo that I want to find the x, y, and z positions for, but I can't seem to figure out how to do for just these particles and not all the particles in the simulation.  Does anyone have a suggestion on how to do this?  I've been trying to use pf.h.all_data() but am stuck on getting it to only return data for this certain list of particles.

Thanks,
Brian