Removing a certain part of a figure in matplotlib

Question

I am trying to do the following: plot two different datasets, ask the user which one is better, remove the bad one from the figure, and save the good plot. However, I can't find a way to do it with matplotlib. I found the cla() command, but even like that it keeps on deleting the whole figure... can someone give me a hand with this?

Here is how I am doing it.

fig=plt.figure() ax=fig.add_subplot(111) plot(something) ax2=fig.add_subplot(111) plot(other thing) cla()

Thanks!

unutbu · Accepted Answer · 2012-10-14 18:56:13Z

This plots two curves. Clicking on a curve deletes it.

import matplotlib.pyplot as plt import numpy as np sin = np.sin cos = np.cos pi = np.pi def delete(event): artist = event.artist artist.remove() event.canvas.draw() fig = plt.figure() ax = fig.add_subplot(111) x = np.linspace(0, 2*pi, 50) y = 2*sin(x) z = 2*cos(x) line1, = ax.plot(x,y) line2, = ax.plot(x,z) for artist in [line1, line2]: artist.set_picker(5) fig.canvas.mpl_connect('pick_event', delete) plt.show()

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