[yt-users] Active Particles

[Matthew Turk]

Hi John,

On Thu, Jul 24, 2014 at 7:38 AM, John Regan <johnanthonyregan at gmail.com> wrote:
> Hi All,
>
> I'm having trouble reading Active Particle data from Enzo-3.0 outputs.
>
> .
> .
> .
> dd = pf.h.all_data()
> print dd["RadiationParticle", "particle_position_x"]
> .
> .
>
> gives
>
>  File "PrintActiveParticleInfo.py", line 18, in <module>
>     print dd["RadiationParticle", "particle_position_x"]
>   File
> "/homeappl/home/regan/appl_taito/YT/Dev/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py",
> line 325, in __getitem__
>     self.get_data(key)
>   File
> "/homeappl/home/regan/appl_taito/YT/Dev/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py",
> line 2627, in get_data
>     if self._generate_field(field):
>   File
> "/homeappl/home/regan/appl_taito/YT/Dev/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py",
> line 358, in _generate_field
>     raise KeyError(field)
> KeyError: ('RadiationParticle', 'particle_position_x')
>
> From dumping the hdf5 file the dataset (particle_position_x) exists in the
> group RadiationParticle.
> I'm probably missing something simple.... but any hints would be
> appreciated!
> Oh I'm using yt-2.7.dev

Unfortunately, right now to my recollection active particles don't
work with yt 2.x.  The construction you're using, with
dd[particle_type, particle_field] definitely doesn't work with yt 2.x.
If you want to avoid moving to yt 3.0, you can probably stitch the
particles together with h5py manually, thought.

>
> John
>
>
> P.S.
> Is there documentation on the yt website for reading Enzo-3.0 outputs?
>
>
>
> (yt-x86_64)[regan at taito-login3 GeneralRoutines]$ yt version
>
> yt module located at:
>     /homeappl/home/regan/appl_taito/YT/Dev/yt-x86_64/src/yt-hg
> The supplemental repositories are located at:
>     /homeappl/home/regan/appl_taito/YT/Dev/yt-x86_64/src/yt-supplemental
>
> The current version and changeset for the code is:
>
> ---
> Version = 2.7-dev
> Changeset = e89295c7393d
> ---
>
> This installation CAN be automatically updated.
> yt dependencies were last updated on
> Tue Dec  3 18:24:50 EET 2013
>
> To update all dependencies, run "yt update --all".
> (yt-x86_64)[regan at taito-login3 GeneralRoutines]$
>
>
>
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