[yt-users] Analyzing SPH data

[Nathan Goldbaum]

On Sat, Mar 4, 2017 at 12:13 AM, Alankar Dutta <dutta.alankar at gmail.com>
wrote:

> Hello,
>
> Modifying the GADGET simulation isn't possible the moment because it has
> already been developed by someone else who has a paper  published  on this
> simulation and I want to use that simulation  snapshots to make mock xray
> map from it.
>

I'm talking about modifying yt, not Gadget.

Is the file you attached to your other e-mail just a single file in a
multi-file dataset? How large is the full dataset? Do you not have a way to
produce a full dataset in this output format that's not prohibitively large?


>
>
> Alankar Dutta
>
> On Mar 4, 2017 11:38 AM, "Nathan Goldbaum" <nathan12343 at gmail.com> wrote:
>
>> I think the most straightforward thing to do here is to fix the Gadget
>> frontend so it properly reads in gadget binary data with positions written
>> in double precision.
>>
>> Is there any chance you can generate a smallish test dataset in your
>> Gadget output format that we can use for debugging purposes? With that
>> available it should be straightforward to add support. You can share the
>> dataset using the yt curldrop (https://docs.hub.yt/services.html#curldrop)
>> or a cloud filesharing service like dropbox or google drive.
>>
>> Unfortunately there isn't a way to load SPH data without a full-fledged
>> frontend right now.
>>
>> We do have a load_particles function which allows creating a dataset from
>> particle data loaded as numpy arrays, but it's currently not possible to
>> use it to load SPH data.
>>
>> I'm currently actively working on improving support for SPH data in yt
>> and adding the ability to load SPH data with load_particles is one of the
>> things I've added in that branch of the code. Hopefully this work will be
>> stabilized sometime in the next few months.
>>
>>
>>
>> On Fri, Mar 3, 2017 at 11:45 PM, Alankar Dutta <dutta.alankar at gmail.com>
>> wrote:
>>
>>> Hello yt-community,
>>>
>>> I am a beginner on yt. I have an array of data which I have read from a
>>> Gadget simulation snapshot. It is not directly supported by yt at present
>>> (I have ensured this by already discussing this issue in the community
>>> before). The array has position,velocity, density, mass, internal energy
>>> and smoothing length information on the gas particles. Now how can I use
>>> this to make the slice plots or other useful visualizations?
>>>
>>> Alankar Dutta,
>>> Third year Undergraduate,
>>> Physics Department,
>>> Presidency University, India
>>>
>>> _______________________________________________
>>> yt-users mailing list
>>> yt-users at lists.spacepope.org
>>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>>
>>>
>>
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>>
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