[yt-users] volume rendering of other fields than the density

[Nathan Goldbaum]

Did you try the non-adaptive healpix volume rendering?

http://yt-project.org/docs/2.5/visualizing/volume_rendering.html?highlight=healpix#healpix-volume-rendering

On May 17, 2013, at 1:25 PM, Geoffrey So <gsiisg at gmail.com> wrote:

> Bug filed.
> 
> Is there something else that does all sky projection like WMAP in YT?  I guess the healpix isn't 'exactly' what the guy wanted but that's the closest thing I found.
> 
> From
> G.S.
> 
> 
> On Fri, May 17, 2013 at 1:16 PM, Matthew Turk <matthewturk at gmail.com> wrote:
> Hi Geoffrey and Wolfram,
> 
> It looks to me like the adaptive healpix volume renderer has bitrot.
> My guess is that this dates back to the threading changeover.  I am
> the original author of this functionality.
> 
> If someone else is able to look at it and update it, it would be
> greatly appreciated.  Unfortunately, I cannot take on this
> responsibility at this time.  Please fill out a bug so that it does
> not get lost.
> 
> -Matt
> 
> On Fri, May 17, 2013 at 3:57 PM, Geoffrey So <gsiisg at gmail.com> wrote:
> > Any update on this issue?  I was recommending this to another grad student
> > who wanted a projection map from a central point of a simulation.  Not sure
> > if it is the right thing, but seemed the closest I can find.
> >
> > I tried healpix example script from the doc page:
> > http://paste.yt-project.org/show/3466/
> > and got the following error:
> >
> > Traceback (most recent call last):
> >   File "healpix.py", line 18, in <module>
> >     camera.snapshot()
> >   File
> > "/Users/gso/Documents/dev-yt/src/yt-hg/yt/visualization/volume_rendering/camera.py",
> > line 1282, in snapshot
> >     tfp = TransferFunctionProxy(self.transfer_function)
> > NameError: global name 'TransferFunctionProxy' is not defined
> >
> > using dev-yt from a fresh install as of yesterday
> >
> > The current version of the code is:
> >
> > ---
> > 03c08d0a79ca
> > ---
> >
> > This installation CAN be automatically updated.
> > yt dependencies were last updated on
> > Thu May 16 13:09:12 PDT 2013
> >
> > Somehow it always tells me I need to update manually when I do >yt update
> > --all, so I just did a fresh install.
> >
> > From
> > G.S.
> >
> >
> > On Thu, May 16, 2013 at 1:08 PM, Sam Skillman <samskillman at gmail.com> wrote:
> >>
> >> Hi Wolfram,
> >>
> >> Sorry for the trouble -- the adaptive healpix rendering is fairly beta, as
> >> noted in that example, and I fear it may have gotten left behind in some of
> >> the recent developments.  Could you let me know what version of yt you are
> >> using?  You can check this with:
> >>
> >> yt instinfo
> >>
> >> It should spit out something like (in addition to other things):
> >> The current version of the code is:
> >>
> >> ---
> >> 1158e48daef2
> >> ---
> >>
> >> Thanks,
> >> Sam
> >>
> >>
> >> On Thu, May 16, 2013 at 3:04 AM, Wolfram Schmidt
> >> <schmidt at astro.physik.uni-goettingen.de> wrote:
> >>>
> >>> Hi all,
> >>>
> >>> I used the example script from the Tutorial section of the Volume
> >>> Rendering page:
> >>>
> >>>
> >>> http://yt-project.org/doc/visualizing/volume_rendering.html#adaptive-healpix-volume-rendering
> >>>
> >>> It works fine for the density, but for any other field (e.g. temperature)
> >>> the output is just blank. I don't see why I wouldn't work for other fields,
> >>> as the script appears to be written for arbitrary fields. Changing level
> >>> bounds, use_log, etc. doesn't help.
> >>>
> >>> Does anyone how to fix this?
> >>>
> >>> Cheers,
> >>> Wolfram
> >>> _______________________________________________
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> >>
> >>
> >>
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> >
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