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42 lines
1.3 KiB
Markdown
42 lines
1.3 KiB
Markdown
# 将轮廓轮廓投影到图形上
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演示显示3D表面，同时还将轮廓“轮廓”投影到图形的“墙壁”上。
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有关填充版本，请参见contourf3d_demo2。
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```python
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from mpl_toolkits.mplot3d import axes3d
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import matplotlib.pyplot as plt
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from matplotlib import cm
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fig = plt.figure()
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ax = fig.gca(projection='3d')
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X, Y, Z = axes3d.get_test_data(0.05)
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# Plot the 3D surface
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ax.plot_surface(X, Y, Z, rstride=8, cstride=8, alpha=0.3)
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# Plot projections of the contours for each dimension. By choosing offsets
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# that match the appropriate axes limits, the projected contours will sit on
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# the 'walls' of the graph
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cset = ax.contour(X, Y, Z, zdir='z', offset=-100, cmap=cm.coolwarm)
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cset = ax.contour(X, Y, Z, zdir='x', offset=-40, cmap=cm.coolwarm)
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cset = ax.contour(X, Y, Z, zdir='y', offset=40, cmap=cm.coolwarm)
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ax.set_xlim(-40, 40)
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ax.set_ylim(-40, 40)
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ax.set_zlim(-100, 100)
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ax.set_xlabel('X')
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ax.set_ylabel('Y')
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ax.set_zlabel('Z')
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plt.show()
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```
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## 下载这个示例
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- [下载python源码: contour3d_3.py](https://matplotlib.org/_downloads/contour3d_3.py)
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- [下载Jupyter notebook: contour3d_3.ipynb](https://matplotlib.org/_downloads/contour3d_3.ipynb) |