[yt-users] Potential problem with the field_parameters dictionary in SlicePlot (and certainly others)

[Matthew Turk]

Hi Antoine,

Thanks for reporting this!  Which version of the code are you on?  "yt
instinfo" should be able to tell you this.

-Matt

On Wed, Sep 3, 2014 at 11:08 AM, Antoine Strugarek
<strugarek at astro.umontreal.ca> wrote:
> Hi,
>
> I’ve been trying to specify by hand the ‘center’ entry of the dictionary field_parameters to a SlicePlot so that the derived field can make use of another center to compute, e.g., cylindrical coordinates. After tracking why my specified center had no effect, I noticed that the function _set_center is called when a SlicePlot is created, and this function erases any ‘center’ entry in the field_parameters dictionary, putting there the ‘center’ keyword specified as an argument to SlicePlot. It appears to me this should not be the normal behaviour, but I may be misunderstanding something. I would naively suggest not to update the ‘field_parameters’ dictionary in the _set_center function, though I’m not completely sure?
>
> Thanks in advance for your help and suggestion about this issue!
>
> Antoine
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