[yt-dev] Transfer Function Plots

[Christopher Moody]

Beautiful, +1!

chris

On Fri, Jun 8, 2012 at 2:22 PM, Cameron Hummels
<chummels at astro.columbia.edu> wrote:
> +1e6!  I need to use something like this right now! :)  Great work, Sam!
>
>
> On 6/8/12 5:06 PM, Sam Skillman wrote:
>>
>> Okay, I've prototyped something that works like this:
>>
>> interactive_camera.snapshot()
>> ...pops up interactive matplotlib window...
>> interactive_camera.save('test.png')
>> ...grabs all needed information and makes this...
>>
>> Inline image 1
>>
>> +/- 1?  It just needs some cleanup, like reducing the extent of the
>> colorbar so you don't get the black strip at the top and bottom of the
>> image.
>>
>> Sam
>>
>> On Fri, Jun 8, 2012 at 2:12 PM, Richard P Wagner <rpwagner at sdsc.edu
>> <mailto:rpwagner at sdsc.edu>> wrote:
>>
>>
>>    On Jun 8, 2012, at 12:40 PM, Nathan Goldbaum wrote:
>>
>>>    I'd prefer it if the transfer function plot were split into two
>>>    separate frames.  Right now, it's easy to think that the black
>>>    background color image contains opacity information since the
>>>    frame is plotted with a y axis.  I'd prefer it if only the white
>>>    line was plotted with a y axis and the black background image was
>>>    plotted in a separate frame like a color bar with no y axis.
>>>     This would also let the user see the tick marks for the opacity
>>>    plot much more easily.
>>>
>>>    In general, I like plotting the transfer function like a color
>>>    bar (sort of like Stella Offner's image on the yt homepage
>>>    [http://yt-project.org/img/offner_etal.png]).
>>
>>
>>    That's what came to mind when I was reading this. For a while,
>>    we've been putting a combination color bar-transfer function
>>    graphic in our renderings with ANL (skip about 30 seconds into
>>    http://www.youtube.com/watch?v=5dOt0IaRY4U). I think it's very
>>    natural to overlay a transfer function plot onto a color bar, and
>>    it provides a lot of information in a simple fashion.
>>
>>    --Rick
>>
>>>
>>>    Nathan Goldbaum
>>>    Graduate Student
>>>    Astronomy & Astrophysics, UCSC
>>>    goldbaum at ucolick.org <mailto:goldbaum at ucolick.org>
>>>    http://www.ucolick.org/~goldbaum <http://www.ucolick.org/%7Egoldbaum>
>>>
>>>
>>>    On Jun 8, 2012, at 12:34 PM, Sam Skillman wrote:
>>>
>>>>    Hi all,
>>>>
>>>>    I've been experimenting with different ways to plot the transfer
>>>>    functions, and in particular in the context of the
>>>>    InteractiveCamera.
>>>>
>>>>    What are people's thoughts about this behavior:
>>>>
>>>>    http://i.imgur.com/CGZ7Z.png
>>>>    http://i.imgur.com/OCsVt.jpg
>>>>    http://i.imgur.com/VNEse.png
>>>>
>>>>    btw, you can get this behavior by changing your script to call
>>>>    pf.h.interactive_camera, and then running in ipython with a
>>>>    working matplotlib backend.
>>>>
>>>>    I'll let Nathan bring up his concerns rather than me try to
>>>>    convey them.
>>>>
>>>>    Sam
>>>>
>>>>
>>>>
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>>>
>>>
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