Vẽ cả contourf (2D) và surface_plot (3D) trên cùng axes 3D.
- Tạo delta, xrange, yrange, meshgrid x, y.
- fig = plt.figure(), ax = fig.gca(projection='3d').
- ax.contour(x, y, sin(x)-cos(y), [0]).
- ax.plot_surface(x, y, sin(x)-cos(y), cmap="afmhot_r").
- show().
Ví dụ
from matplotlib import pyplot as plt import numpy as np plt.rcParams["figure.figsize"] = [7.00, 3.50] plt.rcParams["figure.autolayout"] = True delta = 0.025 xrange = np.arange(-5.0, 20.0, delta) yrange = np.arange(-5.0, 20.0, delta) x, y = np.meshgrid(xrange, yrange) fig = plt.figure() ax = fig.gca(projection='3d') ax.contour(x, y, (np.sin(x) - np.cos(y)), [0]) ax.plot_surface(x, y, (np.sin(x) - np.cos(y)), cmap="afmhot_r") plt.show()