[Yt-dev] Request For Ideas: Particle Handling

Matthew Turk matthewturk at gmail.com
Thu Sep 2 17:28:23 PDT 2010


Hi All,

Okay, after thinking it through, reading Stephen and John's comments,
and talking to some other people, I've decided I'm going to go with
the pairwise field access:

sphere["popiii", "particle_velocity_x"]

It'll probably be a while coming, but that's what I think is the best
bet.  We need answer testing before I touch any of the underlying
machinery for data access or units ...

Thanks for your feedback!

-Matt

On Thu, Sep 2, 2010 at 7:15 AM, Stephen Skory <stephenskory at yahoo.com> wrote:
> All,
>
>> sphere["popiii_particle_velocity_x"]
>> sphere["popiii", "particle_velocity_x"]
>> sphere.particles["popiii"]["particle_velocity_x"]
>
>
> I don't know if it would be correct to do it in this framework, but we could
> consider making the particle statements a bit more powerful and allowing
> multiple filters. For example, something like this:
>
> sphere[["popiii", "M>1e10"], "particle_velocity_x"]
>
> would pick out p_v_x of fantastically massive popiii stars. This may make doing
> analysis of large datasets simpler for the end-user when it's done in parallel,
> if we do the back-end particle handing "right". I can see some problems with
> this, but I'm putting the idea out there.
>
>  _______________________________________________________
> sskory at physics.ucsd.edu o__ Stephen Skory
> http://physics.ucsd.edu/~sskory/ _.>/ _Graduate Student
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