matplotlib & pandas

Python/matplotlab/gallery/mplot3d/3d_bars.md

@@ -0,0 +1,41 @@
+# 3D条形图演示
+
+有关如何使用和不使用着色绘制3D条形图的基本演示。
+
+![3D条形图演示](https://matplotlib.org/_images/sphx_glr_3d_bars_001.png)
+
+```python
+import numpy as np
+import matplotlib.pyplot as plt
+# This import registers the 3D projection, but is otherwise unused.
+from mpl_toolkits.mplot3d import Axes3D  # noqa: F401 unused import
+
+
+# setup the figure and axes
+fig = plt.figure(figsize=(8, 3))
+ax1 = fig.add_subplot(121, projection='3d')
+ax2 = fig.add_subplot(122, projection='3d')
+
+# fake data
+_x = np.arange(4)
+_y = np.arange(5)
+_xx, _yy = np.meshgrid(_x, _y)
+x, y = _xx.ravel(), _yy.ravel()
+
+top = x + y
+bottom = np.zeros_like(top)
+width = depth = 1
+
+ax1.bar3d(x, y, bottom, width, depth, top, shade=True)
+ax1.set_title('Shaded')
+
+ax2.bar3d(x, y, bottom, width, depth, top, shade=False)
+ax2.set_title('Not Shaded')
+
+plt.show()
+```
+
+## 下载这个示例
+            
+- [下载python源码: 3d_bars.py](https://matplotlib.org/_downloads/3d_bars.py)
+- [下载Jupyter notebook: 3d_bars.ipynb](https://matplotlib.org/_downloads/3d_bars.ipynb)