matplotlib & pandas

Python/matplotlab/gallery/mplot3d/surface3d_3.md

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+# 三维曲面(棋盘格)
+
+演示绘制以棋盘图案着色的3D表面。
+
+![三维曲面(棋盘格)示例](https://matplotlib.org/_images/sphx_glr_surface3d_3_001.png)
+
+```python
+# This import registers the 3D projection, but is otherwise unused.
+from mpl_toolkits.mplot3d import Axes3D  # noqa: F401 unused import
+
+import matplotlib.pyplot as plt
+from matplotlib.ticker import LinearLocator
+import numpy as np
+
+
+fig = plt.figure()
+ax = fig.gca(projection='3d')
+
+# Make data.
+X = np.arange(-5, 5, 0.25)
+xlen = len(X)
+Y = np.arange(-5, 5, 0.25)
+ylen = len(Y)
+X, Y = np.meshgrid(X, Y)
+R = np.sqrt(X**2 + Y**2)
+Z = np.sin(R)
+
+# Create an empty array of strings with the same shape as the meshgrid, and
+# populate it with two colors in a checkerboard pattern.
+colortuple = ('y', 'b')
+colors = np.empty(X.shape, dtype=str)
+for y in range(ylen):
+    for x in range(xlen):
+        colors[x, y] = colortuple[(x + y) % len(colortuple)]
+
+# Plot the surface with face colors taken from the array we made.
+surf = ax.plot_surface(X, Y, Z, facecolors=colors, linewidth=0)
+
+# Customize the z axis.
+ax.set_zlim(-1, 1)
+ax.w_zaxis.set_major_locator(LinearLocator(6))
+
+plt.show()
+```
+
+## 下载这个示例
+            
+- [下载python源码: surface3d_3.py](https://matplotlib.org/_downloads/surface3d_3.py)
+- [下载Jupyter notebook: surface3d_3.ipynb](https://matplotlib.org/_downloads/surface3d_3.ipynb)