Animating a contour plot in matplotlib using FuncAnimation

Question

I am trying to create an animation in matplotlib that updates three artists, including imshow, contour and text. Using FuncAnimation I am able to update the text and the image components, but have not been able to update the contour. Specifically, I tried this as my callback:

def updatefig(*args):
    text_component.set_text(newText())
    image_component.set_array(newArrayData())
    contour_component.set_array(newArrayData())
    return [text_component,image_component,contour_component]

This code doesn't raise an exception but neither does it update the contour lines. I wonder if this is just a matter my not knowing the right setter method of if there is more to it. Can anyone tell me if this is possible?

Thanks, Eli

djvg · Accepted Answer · 2019-01-08 13:53:01Z

1

I didn´t full understand your code (also because it is not complete) and I would like rather to comment your question than answering it... (but I don't have enough reputation to be able to do it!)

Anyway... I think the problem might be related with the contour itself, which returns not an Artist, but a QuadContourSet instance! Do you think this might be the problem? I had something similar with the ArtistAnimation...

If this is the point, you have to "punch the QuadContourSet until it behaves like an Artist"... I could solve my problem with all the information in the link!

Good luck!

edited Jan 8, 2019 at 13:53

djvg

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answered Feb 29, 2012 at 17:45

carla

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2 Comments

Joe Kington Over a year ago

For what it's worth, this is very much an answer (and a good one) rather than a comment. Don't worry about posting it as an answer rather than a comment!

Eli S Over a year ago

Agree with Joe, and hopefully by accepting I'll be helping your reputation. I apologize for the incompleteness of the code in the question -- I agree it wasn't enough to be replicable but this does seem to be the answer.

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