[yt-users] Profile of a projected quantity?

[Britton Smith]

It would be cool if we were able to treat a projection as a 2D data
container where you could define a center, create a radius field, and then
just pipe directly into the regular profiling machinery.  How hard would it
be to do that (longer timescale than meeting Nathan's needs here of course)?


On Thu, May 1, 2014 at 2:34 PM, Nathan Goldbaum <nathan12343 at gmail.com>wrote:

>
>
> On Thu, May 1, 2014 at 8:07 AM, Cameron Hummels <chummels at gmail.com>wrote:
>
>> I have some scripts for doing projected radius profiles using projections
>> and FRBs.  They'll certainly be different from the Profile1D stuff, but
>> they work OK.  I'm happy to share them if you want a starter for this
>> avenue.
>>
>
> Would love to see them.
>
>
>>
>> Cameron
>>
>>
>> On Wed, Apr 30, 2014 at 6:24 PM, Matthew Turk <matthewturk at gmail.com>wrote:
>>
>>> Hi Nathan,
>>>
>>> On Wed, Apr 30, 2014 at 8:35 PM, Nathan Goldbaum <nathan12343 at gmail.com>
>>> wrote:
>>> > Hi all,
>>> >
>>> > Is there a way for me to find a profile using a projection as a data
>>> source?
>>> > In particular, I'd like to find a radial profile of a surface density
>>> in a
>>> > disk galaxy simulation.
>>> >
>>> > I think I could do this by histogramming a fixed resolution buffer
>>> created
>>> > by a projection data source but is that the only way to do it?  I'd
>>> prefer
>>> > for my data pipeline to look identical for computing profiles and in
>>> all
>>> > other cases I'm using a Profile1D object to find things like the
>>> cumulative
>>> > mass or the average density as a function of radius.
>>>
>>> I believe this is what has been done in the past -- Sam wrote a set of
>>> scripts that did it this way.  I think, though, that you might be able
>>> to use the cylindrical radius derived fields and then accumulate
>>> within them.  Would that get to where you want the analysis?
>>>
>>> -Matt
>>>
>>> >
>>> > Thanks for your help with this!
>>> >
>>> > -Nathan
>>> >
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>>
>>
>>
>> --
>> Cameron Hummels
>> Postdoctoral Researcher
>> Steward Observatory
>> University of Arizona
>> http://chummels.org
>>
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