matplotlib & pandas

Python/matplotlab/gallery/ticks_and_spines/spines.md

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+# Spines图
+
+这个演示比较：
+
+ - 正常轴，四边都有spine;
+ - 仅在左侧和底部有spine的轴;
+ - 使用自定义边界限制spine范围的轴。
+
+![Spines图示例](https://matplotlib.org/_images/sphx_glr_spines_001.png)
+
+```python
+import numpy as np
+import matplotlib.pyplot as plt
+
+
+x = np.linspace(0, 2 * np.pi, 100)
+y = 2 * np.sin(x)
+
+fig, (ax0, ax1, ax2) = plt.subplots(nrows=3)
+
+ax0.plot(x, y)
+ax0.set_title('normal spines')
+
+ax1.plot(x, y)
+ax1.set_title('bottom-left spines')
+
+# Hide the right and top spines
+ax1.spines['right'].set_visible(False)
+ax1.spines['top'].set_visible(False)
+# Only show ticks on the left and bottom spines
+ax1.yaxis.set_ticks_position('left')
+ax1.xaxis.set_ticks_position('bottom')
+
+ax2.plot(x, y)
+
+# Only draw spine between the y-ticks
+ax2.spines['left'].set_bounds(-1, 1)
+# Hide the right and top spines
+ax2.spines['right'].set_visible(False)
+ax2.spines['top'].set_visible(False)
+# Only show ticks on the left and bottom spines
+ax2.yaxis.set_ticks_position('left')
+ax2.xaxis.set_ticks_position('bottom')
+
+# Tweak spacing between subplots to prevent labels from overlapping
+plt.subplots_adjust(hspace=0.5)
+plt.show()
+```
+
+## 下载这个示例
+            
+- [下载python源码: spines.py](https://matplotlib.org/_downloads/spines.py)
+- [下载Jupyter notebook: spines.ipynb](https://matplotlib.org/_downloads/spines.ipynb)