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47 lines
1.3 KiB
Markdown
47 lines
1.3 KiB
Markdown
# 使用预先计算的图像列表的动画图像
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```python
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import numpy as np
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import matplotlib.pyplot as plt
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import matplotlib.animation as animation
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fig = plt.figure()
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def f(x, y):
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return np.sin(x) + np.cos(y)
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x = np.linspace(0, 2 * np.pi, 120)
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y = np.linspace(0, 2 * np.pi, 100).reshape(-1, 1)
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# ims is a list of lists, each row is a list of artists to draw in the
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# current frame; here we are just animating one artist, the image, in
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# each frame
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ims = []
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for i in range(60):
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x += np.pi / 15.
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y += np.pi / 20.
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im = plt.imshow(f(x, y), animated=True)
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ims.append([im])
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ani = animation.ArtistAnimation(fig, ims, interval=50, blit=True,
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repeat_delay=1000)
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# To save the animation, use e.g.
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#
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# ani.save("movie.mp4")
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#
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# or
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#
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# from matplotlib.animation import FFMpegWriter
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# writer = FFMpegWriter(fps=15, metadata=dict(artist='Me'), bitrate=1800)
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# ani.save("movie.mp4", writer=writer)
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plt.show()
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```
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## 下载这个示例
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- [下载python源码: dynamic_image.py](https://matplotlib.org/_downloads/dynamic_image.py)
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- [下载Jupyter notebook: dynamic_image.ipynb](https://matplotlib.org/_downloads/dynamic_image.ipynb) |