| """ | |
| ================================= | |
| Plot contour (level) curves in 3D | |
| ================================= | |
| This is like a contour plot in 2D except that the ``f(x, y)=c`` curve is | |
| plotted on the plane ``z=c``. | |
| """ | |
| import matplotlib.pyplot as plt | |
| from matplotlib import cm | |
| from mpl_toolkits.mplot3d import axes3d | |
| ax = plt.figure().add_subplot(projection='3d') | |
| X, Y, Z = axes3d.get_test_data(0.05) | |
| ax.contour(X, Y, Z, cmap=cm.coolwarm) # Plot contour curves | |
| plt.show() | |