[yt-users] Real-time histogram presentation based on interactive volume rendered camera properties

E.M. Dragowsky dragowsky at case.edu
Tue Apr 18 13:27:24 PDT 2017


Thanks, Nathan -- will review in the next couple of days.

On Tue, Apr 18, 2017 at 4:24 PM, Nathan Goldbaum <nathan12343 at gmail.com>
wrote:

> If you'd be interested in experimenting with the OpenGL volume rendering,
> take a look at these doc pages:
>
> http://yt-project.org/docs/dev/visualizing/interactive_
> data_visualization.html
> http://yt-project.org/docs/dev/cookbook/complex_plots.
> html#cookbook-opengl-vr
>
> In addition, the place in the codebase to look to see how this is
> implemented is e.g. here:
>
> https://bitbucket.org/yt_analysis/yt/src/416bc87fd064d8cd5d64a98922c00c
> 1cc71a0f7d/yt/visualization/volume_rendering/interactive_vr.py
>
> It makes use of cyglfw, a cython wrapper for the GLFW OpenGL library. If
> you're familiar with OpenGL that will help.
>
> -Nathan
>
> On Tue, Apr 18, 2017 at 3:20 PM, E.M. Dragowsky <dragowsky at case.edu>
> wrote:
>
>> Hi, Matt -- Thanks for offering this assessment of the current state,
>> including the notion that my interest aligns with future plans.
>>
>> To aid in my report back to my sponsors, perhaps I can extend this
>> conversation to determine if there's anything I can contribute to this
>> development effort? I've described myself as a "researcher who can code",
>> definitely not to be confused with a practiced developer, and yet...these
>> topics of volume rendering and coordinated views have become really
>> interesting to me.
>>
>> Please let me know,
>> ~ Em
>>
>>
>> ---------- Forwarded message ----------
>> From: Matthew Turk <matthewturk at gmail.com>
>> Date: Tue, Apr 18, 2017 at 2:47 PM
>> Subject: Re: [yt-users] Real-time histogram presentation based on
>> interactive volume rendered camera properties
>> To: Discussion of the yt analysis package <yt-users at lists.spacepope.org>
>>
>>
>> Hi Em,
>>
>> Thanks for writing.  Right now, this isn't possible; I had delayed on
>> writing back because I was experimenting with ways of augmenting the
>> existing OpenGL VR to do this, but I ended up not coming up with anything
>> in time.  I absolutely think this is where we would like to go with our
>> interactive VR, but I don't have a timetable for it right now.
>>
>> -Matt
>>
>> On Tue, Apr 11, 2017 at 9:54 AM, E.M. Dragowsky <dragowsky at case.edu>
>> wrote:
>>
>>> Greetings --
>>>
>>> Please forgive the subject line -- it makes sense to me; hopefully after
>>> reading the note it will make sense to me+1 or more....
>>>
>>> Just last week I became aware of yt, and so this is a question about
>>> capabilities:
>>>
>>> I'm working on a project to aid a researcher with visualizing derived
>>> data products (a set of ~5000 histograms) along with volume rendering of
>>> simulations performed with Flash (flash.uchicago.edu). This would
>>> involve manipulation of the rendered volume data (e.g. temp, density data
>>> fields) and coordinated presentation in an inset or separate window from
>>> the set of histograms. The active camera view angles from the rendered
>>> volume display would be used to select from the histogram set (in this case
>>> indexed by 51 polar angle bins and 101 azimuthal angle bins). The key
>>> is for the histogram selection to take place as the rendered display is
>>> being updated through user interaction -- so as the view is rotated, the
>>> histogram updates without having to stop the user actions.
>>>
>>> Right now, these histograms are created at the end of the simulation.
>>> One could imagine a more general case in which the histogram were derived
>>> from the volumetric data in real time.
>>>
>>> Is this a task suited to the current state of yt development?
>>>
>>> ​Best regards,
>>> ~ Em​
>>>
>>> --
>>> ----------------------------------
>>> E.M. Dragowsky, Ph.D.
>>> Research Computing -- UTech
>>> Case Western Reserve University
>>> (216) 368-0082
>>>
>>> _______________________________________________
>>> yt-users mailing list
>>> yt-users at lists.spacepope.org
>>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>>
>>>
>>
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>>
>>
>>
>> --
>> ----------------------------------
>> E.M. Dragowsky, Ph.D.
>> Research Computing -- UTech
>> Case Western Reserve University
>> (216) 368-0082
>>
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>> http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
>>
>>
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-- 
----------------------------------
E.M. Dragowsky, Ph.D.
Research Computing -- UTech
Case Western Reserve University
(216) 368-0082
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