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93 lines
3.1 KiB
Markdown
93 lines
3.1 KiB
Markdown
# 简单的Annotate01
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```python
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import matplotlib.pyplot as plt
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import matplotlib.patches as mpatches
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fig, axs = plt.subplots(2, 4)
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x1, y1 = 0.3, 0.3
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x2, y2 = 0.7, 0.7
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ax = axs.flat[0]
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ax.plot([x1, x2], [y1, y2], "o")
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ax.annotate("",
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xy=(x1, y1), xycoords='data',
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xytext=(x2, y2), textcoords='data',
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arrowprops=dict(arrowstyle="->"))
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ax.text(.05, .95, "A $->$ B", transform=ax.transAxes, ha="left", va="top")
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ax = axs.flat[2]
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ax.plot([x1, x2], [y1, y2], "o")
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ax.annotate("",
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xy=(x1, y1), xycoords='data',
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xytext=(x2, y2), textcoords='data',
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arrowprops=dict(arrowstyle="->", connectionstyle="arc3,rad=0.3",
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shrinkB=5)
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)
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ax.text(.05, .95, "shrinkB=5", transform=ax.transAxes, ha="left", va="top")
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ax = axs.flat[3]
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ax.plot([x1, x2], [y1, y2], "o")
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ax.annotate("",
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xy=(x1, y1), xycoords='data',
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xytext=(x2, y2), textcoords='data',
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arrowprops=dict(arrowstyle="->", connectionstyle="arc3,rad=0.3"))
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ax.text(.05, .95, "connectionstyle=arc3", transform=ax.transAxes, ha="left", va="top")
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ax = axs.flat[4]
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ax.plot([x1, x2], [y1, y2], "o")
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el = mpatches.Ellipse((x1, y1), 0.3, 0.4, angle=30, alpha=0.5)
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ax.add_artist(el)
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ax.annotate("",
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xy=(x1, y1), xycoords='data',
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xytext=(x2, y2), textcoords='data',
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arrowprops=dict(arrowstyle="->", connectionstyle="arc3,rad=0.2")
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)
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ax = axs.flat[5]
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ax.plot([x1, x2], [y1, y2], "o")
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el = mpatches.Ellipse((x1, y1), 0.3, 0.4, angle=30, alpha=0.5)
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ax.add_artist(el)
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ax.annotate("",
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xy=(x1, y1), xycoords='data',
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xytext=(x2, y2), textcoords='data',
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arrowprops=dict(arrowstyle="->", connectionstyle="arc3,rad=0.2",
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patchB=el)
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)
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ax.text(.05, .95, "patchB", transform=ax.transAxes, ha="left", va="top")
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ax = axs.flat[6]
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ax.plot([x1], [y1], "o")
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ax.annotate("Test",
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xy=(x1, y1), xycoords='data',
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xytext=(x2, y2), textcoords='data',
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ha="center", va="center",
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bbox=dict(boxstyle="round", fc="w"),
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arrowprops=dict(arrowstyle="->")
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)
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ax.text(.05, .95, "annotate", transform=ax.transAxes, ha="left", va="top")
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ax = axs.flat[7]
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ax.plot([x1], [y1], "o")
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ax.annotate("Test",
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xy=(x1, y1), xycoords='data',
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xytext=(x2, y2), textcoords='data',
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ha="center", va="center",
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bbox=dict(boxstyle="round", fc="w", ),
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arrowprops=dict(arrowstyle="->", relpos=(0., 0.))
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)
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ax.text(.05, .95, "relpos=(0,0)", transform=ax.transAxes, ha="left", va="top")
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for ax in axs.flat:
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ax.set(xlim=(0, 1), ylim=(0, 1), xticks=[], yticks=[], aspect=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: simple_annotate01.py](https://matplotlib.org/_downloads/simple_annotate01.py)
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- [下载Jupyter notebook: simple_annotate01.ipynb](https://matplotlib.org/_downloads/simple_annotate01.ipynb) |