[yt-users] Unpickling phase plots

[David Collins]

> Yes, but you should also be able to pickle just the ._data attribute
> (which is a dict of numpy arrays) of the BinnedProfile2D object, too.

I might revert to that.  I had tried that initially, but using the
BinnedProfile object lets me call PlotTypes.PhasePlot directly, and
there are a number of subtleties about the plotting done in that
routine that I like, so I could avoid some wheel reinvention.

Thanks a ton,
d.

>
> On Fri, Jul 1, 2011 at 9:30 AM, David Collins <dcollins at physics.ucsd.edu> wrote:
>>> designed to allow it, and I have been using successfully lately.  Use
>>> yt.visualization.profile_plotter.PhasePlotter, which is substantially
>>
>> Cool, I'll give that a shot.
>>
>> Is it possible to cram an existing pickle (if I'm on the originating
>> machine, where the unpickle works)  into the PhasePlotter format, or
>> will I need to remake the phase plots?
>>
>> Thanks!
>> d.
>>
>>
>>> more constraining in exposed methods, but also provides the attribute
>>> .plot, which can be pickled and which itself provides a to_mpl
>>> function that takes filenames, axes or figures.  You should read the
>>> source to see how it works, but this is the "future" for pickling and
>>> passing plots.
>>>
>>> -Matt
>>>
>>>>
>>>> This is a technique I've used in the past, so in principle it's sound.
>>>>
>>>> Thanks,
>>>> d.
>>>>
>>>> Full trace:
>>>> Traceback (most recent call last):
>>>>  File "<stdin>", line 1, in <module>
>>>>  File "p8_theta_coarse.py", line 6, in <module>
>>>>    phase = fPickle.load(infile)
>>>>  File "/Users/dcollins/Sites/Research/CodeGames/yt2.0/fPickle.py",
>>>> line 9, in load
>>>>    output = cPickle.load(inputfile,*args,**kwargs)
>>>>  File "/Users/dcollins/local/lib/python2.6/site-packages/yt-2.1dev-py2.6-macosx-10.4-i386.egg/yt/data_objects/static_output.py",
>>>> line 192, in _reconstruct_pf
>>>>    pf = pfs.get_pf_hash(*args)
>>>>  File "/Users/dcollins/local/lib/python2.6/site-packages/yt-2.1dev-py2.6-macosx-10.4-i386.egg/yt/utilities/parameter_file_storage.py",
>>>> line 104, in get_pf_hash
>>>>    return self._convert_pf(self._records[hash])
>>>> KeyError: (('32aa7d1d4941760ffd8fdcab4ea97e1f',), <function
>>>> _reconstruct_pf at 0x101f9d050>,
>>>> ('32aa7d1d4941760ffd8fdcab4ea97e1f',))
>>>>
>>>>
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>>
>>
>>
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