matplotlib & pandas

2026-04-24 10:34:11 +08:00 · 2020-09-26 22:03:11 +08:00
parent 73cc328c81
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--- a/Python/matplotlab/gallery/userdemo/connectionstyle_demo.md
+++ b/Python/matplotlab/gallery/userdemo/connectionstyle_demo.md
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+# 连接样式演示
+
+![连接样式演示](https://matplotlib.org/_images/sphx_glr_connectionstyle_demo_001.png)
+
+```python
+import matplotlib.pyplot as plt
+
+
+fig, axs = plt.subplots(3, 5, figsize=(8, 4.8))
+x1, y1 = 0.3, 0.3
+x2, y2 = 0.7, 0.7
+
+
+def demo_con_style(ax, connectionstyle, label=None):
+    x1, y1 = 0.3, 0.2
+    x2, y2 = 0.8, 0.6
+
+    ax.plot([x1, x2], [y1, y2], ".")
+    ax.annotate("",
+                xy=(x1, y1), xycoords='data',
+                xytext=(x2, y2), textcoords='data',
+                arrowprops=dict(arrowstyle="->",
+                                color="0.5",
+                                shrinkA=5, shrinkB=5,
+                                patchA=None,
+                                patchB=None,
+                                connectionstyle=connectionstyle,
+                                ),
+                )
+
+    ax.text(.05, .95, connectionstyle.replace(",", ",\n"),
+            transform=ax.transAxes, ha="left", va="top")
+
+
+demo_con_style(axs[0, 0], "angle3,angleA=90,angleB=0")
+demo_con_style(axs[1, 0], "angle3,angleA=0,angleB=90")
+demo_con_style(axs[0, 1], "arc3,rad=0.")
+demo_con_style(axs[1, 1], "arc3,rad=0.3")
+demo_con_style(axs[2, 1], "arc3,rad=-0.3")
+demo_con_style(axs[0, 2], "angle,angleA=-90,angleB=180,rad=0")
+demo_con_style(axs[1, 2], "angle,angleA=-90,angleB=180,rad=5")
+demo_con_style(axs[2, 2], "angle,angleA=-90,angleB=10,rad=5")
+demo_con_style(axs[0, 3], "arc,angleA=-90,angleB=0,armA=30,armB=30,rad=0")
+demo_con_style(axs[1, 3], "arc,angleA=-90,angleB=0,armA=30,armB=30,rad=5")
+demo_con_style(axs[2, 3], "arc,angleA=-90,angleB=0,armA=0,armB=40,rad=0")
+demo_con_style(axs[0, 4], "bar,fraction=0.3")
+demo_con_style(axs[1, 4], "bar,fraction=-0.3")
+demo_con_style(axs[2, 4], "bar,angle=180,fraction=-0.2")
+
+for ax in axs.flat:
+    ax.set(xlim=(0, 1), ylim=(0, 1), xticks=[], yticks=[], aspect=1)
+fig.tight_layout(pad=0)
+
+plt.show()
+```
+
+## 下载这个示例
+            
+- [下载python源码: connectionstyle_demo.py](https://matplotlib.org/_downloads/connectionstyle_demo.py)
+- [下载Jupyter notebook: connectionstyle_demo.ipynb](https://matplotlib.org/_downloads/connectionstyle_demo.ipynb)