Hi Matt, Ah OK I see. That construction is only valid in yt-3.0 then? Moving to yt-3.0 then would seem to be the most obvious option. Thanks! On Thu, Jul 24, 2014 at 4:24 PM, Matthew Turk wrote:

Hi John,

On Thu, Jul 24, 2014 at 7:38 AM, John Regan 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

...

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

"/homeappl/home/regan/appl_taito/YT/Dev/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", 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@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@taito-login3 GeneralRoutines]$

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