[yt-dev] Problem with ProjectionPlot in yt-3

[Brian O'Shea]

Ah, in that case I'll skip it.  :-D


On Sun, Aug 31, 2014 at 11:08 PM, Nathan Goldbaum <nathan12343 at gmail.com>
wrote:

> I'll have a bugfix done in a few minutes.
>
>
> On Sun, Aug 31, 2014 at 8:07 PM, Brian O'Shea <bwoshea at gmail.com> wrote:
>
>> Ah, ok - would you like me to file a bug report?
>>
>>
>> On Sun, Aug 31, 2014 at 10:33 PM, Matthew Turk <matthewturk at gmail.com>
>> wrote:
>>
>>> It's a bug. It is assuming that weight field is a string, but it's a
>>> tuple. The behavior I think it should do is check if it's a tuple, and if
>>> it is, either join with spaces or use element 1.
>>> On Aug 31, 2014 9:29 PM, "Brian O'Shea" <bwoshea at gmail.com> wrote:
>>>
>>>> Hi folks,
>>>>
>>>> I am having a problem making weighted projections in yt-3.  Using the
>>>> current tip, when I type this:
>>>>
>>>> plot = yt.ProjectionPlot(ds,'x',fields=('gas', 'density'),
>>>> weight_field=None, width=(1.0,'unitary'), center=[0.5,0.5,0.5]).save()
>>>>
>>>> everything works fine, and I get a projection.  However, when I try
>>>> this:
>>>>
>>>> plot = yt.ProjectionPlot(ds,'x',fields=('gas', 'density'),
>>>> weight_field=('gas', 'density'), width=(1.0,'unitary'),
>>>> center=[0.5,0.5,0.5]).save()
>>>>
>>>> I get the error:
>>>>
>>>>
>>>> ---------------------------------------------------------------------------
>>>> AttributeError                            Traceback (most recent call
>>>> last)
>>>> <ipython-input-4-7a90d3d7dae2> in <module>()
>>>> ----> 1 plot = yt.ProjectionPlot(ds,'x',fields=('gas', 'density'),
>>>> weight_field=('gas', 'density'), width=(1.0,'unitary'),
>>>> center=[0.5,0.5,0.5]).save()
>>>>
>>>> /Users/bwoshea/Desktop/yt-3.0/src/yt-hg/yt/visualization/plot_container.pyc
>>>> in save(self, name, mpl_kwargs)
>>>>     464             weight = self.data_source.weight_field
>>>>     465             if weight is not None:
>>>> --> 466                 weight = weight.replace(' ', '_')
>>>>     467         if 'Cutting' in self.data_source.__class__.__name__:
>>>>     468             type = 'OffAxisSlice'
>>>>
>>>> AttributeError: 'tuple' object has no attribute 'replace'
>>>>
>>>> I would note that if I use 'density' instead of ('gas','density') for
>>>> the weight_field, everything works fine.  Is this the expected behavior, or
>>>> is this a bug?
>>>>
>>>> Thanks!
>>>>
>>>> --Brian
>>>>
>>>>
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