The documentation for matplotlib.animation.FuncAnimation says: init_func : […] This function will be called once before the first frame. But whenever I use FuncAnimation, the init_func is called multiple times. You can see this by adding a print statement to the basic example from Matplotlib’s web…
Tag: animation
Previous frames not cleared when saving matplotlib animation
I am making a matplotlib animation in which a quiver arrow moves across the page. This cannot be achieved in the usual way (creating one Quiver object and updating it with each frame of the animation) because although there is a set_UVC method for updating the u, v components, there is no equivalent method fo…
Display numpy array in a for loop using matplotlib imshow
I have a numpy array whose elements are updated in a for loop: I want to display the array at each iteration, but imshow() doesn’t work, it just displays the image once the loop terminates. ps. I’m using an Ipython notebook I found different things on the web but none of them work on my computer (…
generate video pixel by pixel, programmatically
I’d like to generate an animation pixel by pixel programmatically. Preferably in Hi-Def, in Python or in Ruby. I thought about using PIL to make each frame and then convert the frames into video. Is there a better way to do this? EDIT: Clarification, this is 2D and I need the pixels to be precise. EDITE…