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

> 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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