Animating Plots In Python Using MatplotLib [Python Tutorial] 

Thankyou :)

Thanks so much :)

Quick Question, I've a single "for loop" that generates two outputs. And I like to make two separate mp4's with each one of them. And I only want to run this "for loop" once. how can this be done?

Appreciate it, glad you liked it.

So the rendering itself is done as it goes. Basically what it does is render each frame of the graph and then drops it into a frame buffer. However I believe it does not encode until the end when it saves. From a practical perspective though, for 60 fps it will take longer to run the script than the final video is. If you wanted matching speeds you'd either need to further optimize or set a lower fps for the output I think. I havent timed it, but I believe for most graphs I would do this with, it will take longer than the 8 or 16 ms per frame I'd want to look real time.

Which line throws that error? If it is l.set I'd guess your x and y are not the same length. I'd check the content of x and y first.

As long as the matrix display is done through matplotlib, it should be the same, yep. I havnt tested it, but I assume it will work for you.

I want to learn sir please tell me the process, I want to see mathematical equation and theorem, moving and visualization like a pro.... What to learn first and where ?

Weird, I'll look into it. Havent seen that before.

@@CodingLikeMad Keep me updated!

@@daddy_myers So I don't have a guaranteed answer for you, but a bit of research shows me that this error is likely due to the tk window being closed somehow. Basically it looks for the window to grab the frame from, and then it can't find it. A few different things come to mind - one being that your computer is possibly underpowered for rendering and the window object isn't fully initialized when the frame grab is called. Another possibility is that there is an issue with tk window setup, perhaps the render engine itself isn't callable. Can you normally plot graphs well? Is it possible your computer is under powered for this? Just two guesses. In the former case you'd need to setup your libraries correctly, while in the latter case I'd suggest throwing a loop with a 'try...except' around the frame grab, and then having it wait a second and trying again for 5 or 10 seconds total time before giving up on the frame. BTW, does it fail on the first frame of the video, or later on?

@@CodingLikeMad I'm pretty sure it's not about my computer, since I can plot graphs just fine - and I managed to make a perfectly operating animated plot yesterday using a different code; so that's not to blame. As for the second question, the plot mostly fails to be projected at all; meaning I just get clear, blank axes.

With sufficient work, yes. But itd be pretty round about I think.

Export it to a csv, then load it from python using something like readcsv()

Can you say where the error occurs?

Sometimes it to be that way :)

For this tutorial I had increased the font size in pycharm to make things more visible, I'll look into improving viewability more. Thanks for the feedback :)

Yeah, I'd recomend not looking at code on your phone :p