8000 Cleanup animation examples. by anntzer · Pull Request #16225 · matplotlib/matplotlib · GitHub
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Cleanup animation examples. #16225

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merged 1 commit into from
Feb 7, 2020
Merged

Cleanup animation examples. #16225

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7 changes: 4 additions & 3 deletions examples/animation/animate_decay.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,13 +8,15 @@
- changing axes limits during an animation.
"""

import itertools

import numpy as np
import matplotlib.pyplot as plt
import matplotlib.animation as animation


def data_gen():
for cnt in range(1000):
for cnt in itertools.count():
t = cnt / 10
yield t, np.sin(2*np.pi*t) * np.exp(-t/10.)

Expand Down Expand Up @@ -47,6 +49,5 @@ def run(data):

return line,

ani = animation.FuncAnimation(fig, run, data_gen, blit=False, in 8000 terval=10,
repeat=False, init_func=init)
ani = animation.FuncAnimation(fig, run, data_gen, interval=10, init_func=init)
plt.show()
10 changes: 1 addition & 9 deletions examples/animation/bayes_update.py
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Expand Up @@ -38,16 +38,9 @@ def __init__(self, ax, prob=0.5):
# which the plotted distribution should converge.
self.ax.axvline(prob, linestyle='--', color='black')

def init(self):
self.success = 0
self.line.set_data([], [])
return self.line,

def __call__(self, i):
# This way the plot can continuously run and we just keep
# watching new realizations of the process
if i == 0:
return self.init()

# Choose success based on exceed a threshold with a uniform pick
if np.random.rand(1,) < self.prob:
Expand All @@ -62,6 +55,5 @@ def __call__(self, i):

fig, ax = plt.subplots()
ud = UpdateDist(ax, prob=0.7)
anim = FuncAnimation(fig, ud, frames=np.arange(100), init_func=ud.init,
interval=100, blit=True)
anim = FuncAnimation(fig, ud, frames=100, interval=100, blit=True)
plt.show()
10 changes: 2 additions & 8 deletions examples/animation/double_pendulum_sgskip.py
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Original file line number Diff line number Diff line change
Expand Up @@ -79,12 +79,6 @@ def derivs(state, t):
time_text = ax.text(0.05, 0.9, '', transform=ax.transAxes)


def init():
line.set_data([], [])
time_text.set_text('')
return line, time_text


def animate(i):
thisx = [0, x1[i], x2[i]]
thisy = [0, y1[i], y2[i]]
Expand All @@ -94,6 +88,6 @@ def animate(i):
return line, time_text


ani = animation.FuncAnimation(fig, animate, range(1, len(y)),
interval=dt*1000, blit=True, init_func=init)
ani = animation.FuncAnimation(
fig, animate, len(y), interval=dt*1000, blit=True)
plt.show()
7 changes: 1 addition & 6 deletions examples/animation/simple_anim.py
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Original file line number Diff line number Diff line change
Expand Up @@ -15,18 +15,13 @@
line, = ax.plot(x, np.sin(x))


def init(): # only required for blitting to give a clean slate.
line.set_ydata([np.nan] * len(x))
return line,


def animate(i):
line.set_ydata(np.sin(x + i / 100)) # update the data.
return line,


ani = animation.FuncAnimation(
fig, animate, init_func=init, interval=2, blit=True, save_count=50)
fig, animate, interval=2, blit=True, save_count=50)

# To save the animation, use e.g.
#
Expand Down
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