matplotlib & pandas

Python/matplotlab/gallery/pyplots/text_layout.md

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+# 不同文本的布局
+
+创建具有不同对齐和旋转的文本。
+
+```python
+import matplotlib.pyplot as plt
+import matplotlib.patches as patches
+
+# build a rectangle in axes coords
+left, width = .25, .5
+bottom, height = .25, .5
+right = left + width
+top = bottom + height
+
+fig = plt.figure()
+ax = fig.add_axes([0,0,1,1])
+
+# axes coordinates are 0,0 is bottom left and 1,1 is upper right
+p = patches.Rectangle(
+    (left, bottom), width, height,
+    fill=False, transform=ax.transAxes, clip_on=False
+    )
+
+ax.add_patch(p)
+
+ax.text(left, bottom, 'left top',
+        horizontalalignment='left',
+        verticalalignment='top',
+        transform=ax.transAxes)
+
+ax.text(left, bottom, 'left bottom',
+        horizontalalignment='left',
+        verticalalignment='bottom',
+        transform=ax.transAxes)
+
+ax.text(right, top, 'right bottom',
+        horizontalalignment='right',
+        verticalalignment='bottom',
+        transform=ax.transAxes)
+
+ax.text(right, top, 'right top',
+        horizontalalignment='right',
+        verticalalignment='top',
+        transform=ax.transAxes)
+
+ax.text(right, bottom, 'center top',
+        horizontalalignment='center',
+        verticalalignment='top',
+        transform=ax.transAxes)
+
+ax.text(left, 0.5*(bottom+top), 'right center',
+        horizontalalignment='right',
+        verticalalignment='center',
+        rotation='vertical',
+        transform=ax.transAxes)
+
+ax.text(left, 0.5*(bottom+top), 'left center',
+        horizontalalignment='left',
+        verticalalignment='center',
+        rotation='vertical',
+        transform=ax.transAxes)
+
+ax.text(0.5*(left+right), 0.5*(bottom+top), 'middle',
+        horizontalalignment='center',
+        verticalalignment='center',
+        fontsize=20, color='red',
+        transform=ax.transAxes)
+
+ax.text(right, 0.5*(bottom+top), 'centered',
+        horizontalalignment='center',
+        verticalalignment='center',
+        rotation='vertical',
+        transform=ax.transAxes)
+
+ax.text(left, top, 'rotated\nwith newlines',
+        horizontalalignment='center',
+        verticalalignment='center',
+        rotation=45,
+        transform=ax.transAxes)
+
+ax.set_axis_off()
+plt.show()
+```
+
+![不同文本的布局](https://matplotlib.org/_images/sphx_glr_text_layout_001.png)
+
+## 参考
+
+此示例中显示了以下函数，方法，类和模块的使用：
+
+```python
+import matplotlib
+matplotlib.axes.Axes.text
+matplotlib.pyplot.text
+```
+
+## 下载这个示例
+            
+- [下载python源码: text_layout.py](https://matplotlib.org/_downloads/text_layout.py)
+- [下载Jupyter notebook: text_layout.ipynb](https://matplotlib.org/_downloads/text_layout.ipynb)