Animated quiver

Dear all,

I'm trying to plot a 2D vector field. It's a function of time so I would like to display an animation.
For single frames I used quiver and I'm happy with it... is there any way to update a quiver with time?

I tried something close to what I found on http://www.scipy.org/Cookbook/Matplotlib/Animations but that didn't work.

Thanks a lot,

Davide

Fiocco Davide wrote:

Dear all,

I'm trying to plot a 2D vector field. It's a function of time so I would like to display an animation.
For single frames I used quiver and I'm happy with it... is there any way to update a quiver with time?

If the vectors will always be at the same locations, then you can use the set_UVC method to update the vector data; this should make it possible to use one of the animation techniques for which examples are given in the examples/animation subdirectory of the mpl source distribution. (The examples subdirectory of the source is generally a better source of up-to-date examples than the cookbook.) I haven't tried it, though, and I don't know of any example specific to quiver.

Depending on your use case, you may find it more desirable to save a set of single frames and then display them as a movie or animated gif. A movie-making example is included in examples/animation.

Eric

ยทยทยท

I tried something close to what I found on http://www.scipy.org/Cookbook/Matplotlib/Animations but that didn't work.

Thanks a lot,

Davide
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