[Matplotlib-users] better plotting of magnetic field lines

[Slavin, Jonathan]

Thanks Nathan.  I'll check it out.

Jon

On Thu, Dec 15, 2016 at 11:41 AM, Nathan Goldbaum <nathan12343 at gmail.com>
wrote:

> yt uses an implementation of the line integral convolution recipe from
> scipy that works very nicely (IMO):
>
> http://yt-project.org/docs/dev/visualizing/callbacks.
> html#overplot-line-integral-convolution
>
> I don't think there's an easy way to do this with pure matplotlib right
> now, but you can take a look at yt's implementation if you're curious:
>
> https://bitbucket.org/yt_analysis/yt/src/011cd19563215cefb3facfd5d6f575
> b6b38de0db/yt/visualization/plot_modifications.py?at=yt&
> fileviewer=file-view-default#plot_modifications.py-2347
>
> https://bitbucket.org/yt_analysis/yt/src/011cd19563215cefb3facfd5d6f575
> b6b38de0db/yt/utilities/lib/line_integral_convolution.pyx?
> at=yt&fileviewer=file-view-default
>
> On Thu, Dec 15, 2016 at 10:38 AM, Slavin, Jonathan <
> jslavin at cfa.harvard.edu> wrote:
>
>> Hi all,
>>
>> I would like to plot the magnetic field lines for a simulation and am
>> finding that streamplot is in adequate in a few ways.  First, it breaks
>> lines when they get too close together.  I think this can be configured
>> with the density parameter.  More fundamentally, one usually wants the
>> density of field lines to indicate the strength of the magnetic field.  So
>> a clever selection of start_points could in principle accomplish this, I
>> think.  That may be the way I go, but I wonder if someone hasn't already
>> come up with a solution for this.  If so, I'd love to hear about it.
>>
>> Regards,
>> Jon
>>
>> --
>> ________________________________________________________
>> Jonathan D. Slavin                 Harvard-Smithsonian CfA
>> jslavin at cfa.harvard.edu       60 Garden Street, MS 83
>> phone: (617) 496-7981       Cambridge, MA 02138-1516
>> cell: (781) 363-0035             USA
>> ________________________________________________________
>>
>>
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>>
>


-- 
________________________________________________________
Jonathan D. Slavin                 Harvard-Smithsonian CfA
jslavin at cfa.harvard.edu       60 Garden Street, MS 83
phone: (617) 496-7981       Cambridge, MA 02138-1516
cell: (781) 363-0035             USA
________________________________________________________
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