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29 lines
827 B
Markdown
29 lines
827 B
Markdown
# 多光标
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同时在多个图上显示光标。
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此示例生成两个子图，并将光标悬停在一个子图中的数据上，该数据点的值分别显示在两个子图中。
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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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from matplotlib.widgets import MultiCursor
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t = np.arange(0.0, 2.0, 0.01)
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s1 = np.sin(2*np.pi*t)
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s2 = np.sin(4*np.pi*t)
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fig, (ax1, ax2) = plt.subplots(2, sharex=True)
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ax1.plot(t, s1)
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ax2.plot(t, s2)
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multi = MultiCursor(fig.canvas, (ax1, ax2), color='r', lw=1)
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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: multicursor.py](https://matplotlib.org/_downloads/multicursor.py)
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- [下载Jupyter notebook: multicursor.ipynb](https://matplotlib.org/_downloads/multicursor.ipynb) |