[yt-dev] Issue with PlotWindow and Callbacks

[Nathan Goldbaum]

Hi John,

I haven't tested the quiver callbacks yet and I'm not particularly 
surprised that they're a bit broken.

Your list should probably be attached to every instance PWViewer so that 
it is accessible by the CallbackWrapper.  At line 638 you can set the 
fields to plot to be self._frb.data.keys() minus the fields included in 
your new list.

It might be a bit tricky to generate the list since the callbacks are 
generated dynamically.  Maybe the thing to do is inspect 
self._frb.data.keys() before and after the callback is called inside 
PWViewerMPL._setup_plots() (line 689 in my version of plot_window.py).

Please let us know if you run into any difficulties.

Cheers,

Nathan

On 7/11/12 9:52 PM, John Zuhone wrote:
> Hi all,
>
> I've found an issue with PlotWindow and callbacks. The example script 
> I have included adds velocity vectors on top of a slice:
>
> http://paste.yt-project.org/show/2544/
>
> Later on in the script, I try to resize the plot, but I get this error:
>
> http://paste.yt-project.org/show/2545/
>
> This is because the field list now includes x-velocity and y-velocity, 
> but there are not any plots corresponding to these fields in the list. 
> I figure that the answer to this is to retain some sort of field list 
> that corresponds to the fields that are actually being plotted in the 
> colorscale, but I figured before I just went in and dropped it in 
> somewhere I'd ask for opinions as to where it should go.
>
> Best,
>
> John Z
>
> -- 
> John ZuHone
>
> Postdoctoral Researcher
> NASA/Goddard Space Flight Center
>
> jzuhone at gmail.com <mailto:jzuhone at gmail.com>
> john.zuhone at nasa.gov <mailto:john.zuhone at nasa.gov>
>
>
>
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