[yt-users] Plot 2D magnetic field lines

[David Collins]

Hi, Dominik--

What was the yt command you used to make the streamlines and generate the
error you sent?  I used the following and it was successful:
>>> ds = yt.load('DD0004/data0004')
>>> proj = yt.ProjectionPlot(ds,2,'density')
>>> proj.annotate_streamlines('Bx','By')

and it made this image:
http://imgur.com/eZQmqTB
Can you try the above and let me know if it works?

d.


On Tue, Apr 28, 2015 at 2:58 AM, Dominik Derigs <derigs at ph1.uni-koeln.de>
wrote:

> Hi together,
>
> I want to use yt for plotting magnetic field lines in FLASH simulations
> from 2D simulations and slices from 3D simulations.
> An example of what it could look like can be seen here:
> http://aprg.mae.ufl.edu/wp-content/uploads/2014/07/tang_51.png
>
> I tried to use yt's streamline function, but this does not work for me:
> http://yt-project.org/doc/visualizing/streamlines.html
>
> The error shown is:
> ValueError: operands could not be broadcast together with shapes (9,9,2)
> (9,9,95) (9,9,2)
>
> The used FLASH file is attached.
>
> Thanks a lot
>
> Dominik
>
> --
> Dominik Derigs
> I. Physikalisches Institut
> Universität zu Köln
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