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45 lines
1.1 KiB
Markdown
45 lines
1.1 KiB
Markdown
# 动画线图
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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, ax = plt.subplots()
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x = np.arange(0, 2*np.pi, 0.01)
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line, = ax.plot(x, np.sin(x))
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def init(): # only required for blitting to give a clean slate.
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line.set_ydata([np.nan] * len(x))
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return line,
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def animate(i):
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line.set_ydata(np.sin(x + i / 100)) # update the data.
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return line,
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ani = animation.FuncAnimation(
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fig, animate, init_func=init, interval=2, blit=True, save_count=50)
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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: simple_anim.py](https://matplotlib.org/_downloads/simple_anim.py)
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- [下载Jupyter notebook: simple_anim.ipynb](https://matplotlib.org/_downloads/simple_anim.ipynb) |