matplotlib & pandas

Python/matplotlab/gallery/axisartist/axis_direction_demo_step02.md

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+# 轴方向演示步骤02
+
+![轴方向演示步骤02示例](https://matplotlib.org/_images/sphx_glr_axis_direction_demo_step02_001.png)
+
+```python
+import matplotlib.pyplot as plt
+import mpl_toolkits.axisartist as axisartist
+
+
+def setup_axes(fig, rect):
+    ax = axisartist.Subplot(fig, rect)
+    fig.add_axes(ax)
+
+    ax.set_ylim(-0.1, 1.5)
+    ax.set_yticks([0, 1])
+
+    #ax.axis[:].toggle(all=False)
+    #ax.axis[:].line.set_visible(False)
+    ax.axis[:].set_visible(False)
+
+    ax.axis["x"] = ax.new_floating_axis(1, 0.5)
+    ax.axis["x"].set_axisline_style("->", size=1.5)
+
+    return ax
+
+
+fig = plt.figure(figsize=(6, 2.5))
+fig.subplots_adjust(bottom=0.2, top=0.8)
+
+ax1 = setup_axes(fig, "121")
+ax1.axis["x"].set_ticklabel_direction("+")
+ax1.annotate("ticklabel direction=$+$", (0.5, 0), xycoords="axes fraction",
+             xytext=(0, -10), textcoords="offset points",
+             va="top", ha="center")
+
+ax2 = setup_axes(fig, "122")
+ax2.axis["x"].set_ticklabel_direction("-")
+ax2.annotate("ticklabel direction=$-$", (0.5, 0), xycoords="axes fraction",
+             xytext=(0, -10), textcoords="offset points",
+             va="top", ha="center")
+
+plt.show()
+```
+
+## 下载这个示例
+            
+- [下载python源码: axis_direction_demo_step02.py](https://matplotlib.org/_downloads/axis_direction_demo_step02.py)
+- [下载Jupyter notebook: axis_direction_demo_step02.ipynb](https://matplotlib.org/_downloads/axis_direction_demo_step02.ipynb)