matplotlib & pandas

Python/matplotlab/gallery/mplot3d/contourf3d_2.md

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+# 将填充轮廓投影到图形上
+
+演示显示3D表面，同时还将填充的轮廓“轮廓”投影到图形的“墙壁”上。
+
+有关未填充的版本，请参见contour3d_demo2。
+
+![将填充轮廓投影到图形上](https://matplotlib.org/_images/sphx_glr_contourf3d_2_0011.png)
+
+```python
+from mpl_toolkits.mplot3d import axes3d
+import matplotlib.pyplot as plt
+from matplotlib import cm
+
+fig = plt.figure()
+ax = fig.gca(projection='3d')
+X, Y, Z = axes3d.get_test_data(0.05)
+
+# Plot the 3D surface
+ax.plot_surface(X, Y, Z, rstride=8, cstride=8, alpha=0.3)
+
+# Plot projections of the contours for each dimension.  By choosing offsets
+# that match the appropriate axes limits, the projected contours will sit on
+# the 'walls' of the graph
+cset = ax.contourf(X, Y, Z, zdir='z', offset=-100, cmap=cm.coolwarm)
+cset = ax.contourf(X, Y, Z, zdir='x', offset=-40, cmap=cm.coolwarm)
+cset = ax.contourf(X, Y, Z, zdir='y', offset=40, cmap=cm.coolwarm)
+
+ax.set_xlim(-40, 40)
+ax.set_ylim(-40, 40)
+ax.set_zlim(-100, 100)
+
+ax.set_xlabel('X')
+ax.set_ylabel('Y')
+ax.set_zlabel('Z')
+
+plt.show()
+```
+
+## 下载这个示例
+            
+- [下载python源码: contourf3d_2.py](https://matplotlib.org/_downloads/contourf3d_2.py)
+- [下载Jupyter notebook: contourf3d_2.ipynb](https://matplotlib.org/_downloads/contourf3d_2.ipynb)