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Easy Matplotlib Animation
Creating animations should be easy. This module makes it easy to adapt your existing visualization code to create an animation.
pip install celluloid
Follow these steps:
Figure
and create a Camera
from it:from celluloid import Camera
fig = plt.figure()
camera = Camera(fig)
plt.plot(...)
plt.fancy_stuff()
camera.snap()
animation = camera.animate()
animation.save('animation.mp4')
The entire module is less than 50 lines of code.
As simple as it gets.
from matplotlib import pyplot as plt
from celluloid import Camera
fig = plt.figure()
camera = Camera(fig)
for i in range(10):
plt.plot([i] * 10)
camera.snap()
animation = camera.animate()
Animation at the top.
import numpy as np
from matplotlib import pyplot as plt
from celluloid import Camera
fig, axes = plt.subplots(2)
camera = Camera(fig)
t = np.linspace(0, 2 * np.pi, 128, endpoint=False)
for i in t:
axes[0].plot(t, np.sin(t + i), color='blue')
axes[1].plot(t, np.sin(t - i), color='blue')
camera.snap()
animation = camera.animate()
Domain coloring example.
import numpy as np
from matplotlib import pyplot as plt
from matplotlib.colors import hsv_to_rgb
from celluloid import Camera
fig = plt.figure()
camera = Camera(fig)
for a in np.linspace(0, 2 * np.pi, 30, endpoint=False):
x = np.linspace(-3, 3, 800)
X, Y = np.meshgrid(x, x)
x = X + 1j * Y
y = (x ** 2 - 2.5) * (x - 2.5 * 1j) * (x + 2.5 * 1j) \
* (x - 2 - 1j) ** 2 / ((x - np.exp(1j * a)) ** 2
* (x - np.exp(1j * 2 * a)) ** 2)
H = np.angle(y) / (2 * np.pi) + .5
r = np.log2(1. + np.abs(y))
S = (1. + np.abs(np.sin(2. * np.pi * r))) / 2.
V = (1. + np.abs(np.cos(2. * np.pi * r))) / 2.
rgb = hsv_to_rgb(np.dstack((H, S, V)))
ax.imshow(rgb)
camera.snap()
animation = camera.animate()
import matplotlib
from matplotlib import pyplot as plt
from celluloid import Camera
fig = plt.figure()
camera = Camera(fig)
for i in range(5):
t = plt.plot(range(i, i + 5))
plt.legend(t, [f'line {i}'])
camera.snap()
animation = camera.animate()
legend
function to draw them separately.Inspired by plotnine.
FAQs
Easy matplotlib animation.
We found that celluloid demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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