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41 lines
911 B
Markdown
41 lines
911 B
Markdown
# Symlog演示
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示例使用symlog（对称对数）轴缩放。
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```python
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import matplotlib.pyplot as plt
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import numpy as np
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dt = 0.01
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x = np.arange(-50.0, 50.0, dt)
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y = np.arange(0, 100.0, dt)
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plt.subplot(311)
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plt.plot(x, y)
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plt.xscale('symlog')
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plt.ylabel('symlogx')
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plt.grid(True)
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plt.gca().xaxis.grid(True, which='minor') # minor grid on too
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plt.subplot(312)
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plt.plot(y, x)
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plt.yscale('symlog')
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plt.ylabel('symlogy')
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plt.subplot(313)
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plt.plot(x, np.sin(x / 3.0))
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plt.xscale('symlog')
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plt.yscale('symlog', linthreshy=0.015)
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plt.grid(True)
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plt.ylabel('symlog both')
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plt.tight_layout()
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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: symlog_demo.py](https://matplotlib.org/_downloads/symlog_demo.py)
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- [下载Jupyter notebook: symlog_demo.ipynb](https://matplotlib.org/_downloads/symlog_demo.ipynb) |