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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Migrate `BlitManager` from docs to library","articleBody":"@tacaswell wrote:\r\n\u003e Had some thoughts about hardening `BlitManager` a bit more and putting into the library, but was not sure _where_ to put it and starting in a tutorial seems like a lower-stakes place to start.\r\n\r\nThat `BlitManager` class looks pretty useful for 'live' plots that are not timed (e.g. we want to plot at the rate that data becomes available). Maybe the class could be put in `matplotlib.animation`?\r\n\r\n_Originally posted by @joukewitteveen in https://github.com/matplotlib/matplotlib/issues/10187#issuecomment-1008855976_\r\n\r\n`BlitManager` is a class that was written for pedagogical and documentation reasons in #10187.  When I wrote it I had an idea that it would be generally useful, but was not sure (and did not put in the work to harden / test the code).  We now have a user who asking for it so this seems like a good time to re-consider!\r\n\r\nThe use case that @joukewitteveen has is being on the receive side of a push notification that there is new data, but I think this would make sense anytime that a user wants more control over the timing of the animation (you could also do this with clever use of concurrency + generators but that gets complicated fast). \r\n\r\nThe work that needs to be done:\r\n\r\n1. review the API (it should take a figure not a canvas I think)\r\n2. add tests\r\n3. think through event loop integration (do we want to call `canvas.flush_events`?)\r\n4. make sure it works on all backends that support blitting (I think the OSX related issues are now fixed, but would be good to check).\r\n5. write a tutorial on using it / adapt the existing section to be about it.\r\n\r\nWe may want to do this in the main repo, but I could also see this fitting in mpl-gui ( https://github.com/tacaswell/mpl-gui) at least to start","author":{"url":"https://github.com/tacaswell","@type":"Person","name":"tacaswell"},"datePublished":"2022-01-10T19:09:59.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/22183/matplotlib/issues/22183"}