[yt-users] particle filters

tyuta y0u1t1a5.t at gmail.com
Mon Oct 16 12:30:56 PDT 2017


Thanks a lot!

2017-10-16 15:23 GMT-04:00 Nathan Goldbaum <nathan12343 at gmail.com>:

> Excuse me, you're right - dark matter is particle type 1. These are all
> defined in the enzo source code, right here:
>
> https://bitbucket.org/enzo/enzo-dev/src/787a66541d9f454e1796a103edf006
> 145b32d244/src/enzo/macros_and_parameters.h?at=week-of-
> code&fileviewer=file-view-default#macros_and_parameters.h-467
>
> Enzo doesn't have gas particles so (even though it gets an entry as
> particle type 0 in that file) in practice there aren't any gas particles in
> any real Enzo output. Instead the gas fields are defined on the Enzo AMR
> mesh.
>
> On Mon, Oct 16, 2017 at 2:17 PM, tyuta <y0u1t1a5.t at gmail.com> wrote:
>
>> Dear yt users,
>>
>> Hi, I want to know about particle filters. I learned that I can specify
>> some particle type by doing like this:
>>
>> def stars(pfilter, data):
>>     filter = data[(pfilter.filtered_type, "particle_type")] == 2
>>     return filter
>>
>> I learned that the filter for star is No.2 from this example. What about
>> other particles like gas or dark matter ? (Nathan kindly told me that dark
>> matter is 0, but fragmentary information I got from google search suggest
>> that it's 1, so I'm confused...) Is there any good documentation for this?
>> I'm working with Enzo data.
>>
>> Best,
>> Y.T.
>>
>>
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>>
>
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