Fair enough. Just wanted to check I wasn't missing a trick somewhere. That should be straight forward and "fun" anyway! On Thu, Feb 15, 2018 at 9:35 PM, Nathan Goldbaum wrote:

Right now you'll need to this manually using e.g. annotate_arrow:

http://yt-project.org/docs/3.4.0/visualizing/callbacks.html#overplot-arrow

We don't have a built-in callback at the moment that draws arrows according to particle velocities.

-Nathan

On Thu, Feb 15, 2018 at 3:28 PM, John Regan wrote:

...

Hi Guys,

Just wondering if anyone knows how to attach velocity magnitude arrows to particles (e.g. star particles)? There are the annotate callbacks to place particles on top of gas fields but can I then somehow also view the particle velocity magnitudes.

Any tips much appreciated.

Cheers, John

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