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45 lines
1.2 KiB
Markdown
45 lines
1.2 KiB
Markdown
# 简单的轴线
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```python
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import matplotlib.pyplot as plt
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from mpl_toolkits.axisartist.axislines import SubplotZero
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fig = plt.figure(1)
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fig.subplots_adjust(right=0.85)
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ax = SubplotZero(fig, 1, 1, 1)
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fig.add_subplot(ax)
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# make right and top axis invisible
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ax.axis["right"].set_visible(False)
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ax.axis["top"].set_visible(False)
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# make xzero axis (horizontal axis line through y=0) visible.
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ax.axis["xzero"].set_visible(True)
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ax.axis["xzero"].label.set_text("Axis Zero")
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ax.set_ylim(-2, 4)
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ax.set_xlabel("Label X")
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ax.set_ylabel("Label Y")
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# or
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#ax.axis["bottom"].label.set_text("Label X")
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#ax.axis["left"].label.set_text("Label Y")
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# make new (right-side) yaxis, but with some offset
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offset = (20, 0)
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new_axisline = ax.get_grid_helper().new_fixed_axis
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ax.axis["right2"] = new_axisline(loc="right", offset=offset, axes=ax)
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ax.axis["right2"].label.set_text("Label Y2")
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ax.plot([-2, 3, 2])
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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_axisline.py](https://matplotlib.org/_downloads/simple_axisline.py)
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- [下载Jupyter notebook: simple_axisline.ipynb](https://matplotlib.org/_downloads/simple_axisline.ipynb) |