import numpy as np from numpy import sin, cos, pi from skimage import measure import matplotlib.pyplot as plt from mpl_toolkits.mplot3d import Axes3D def fun(x, y, z): return cos(x) + cos(y) + cos(z) x, y, z = pi*np.mgrid[-1:1:31j, -1:1:31j, -1:1:31j] vol = fun(x, y, z) verts, faces = measure.marching_cubes(vol, 0, spacing=(0.1, 0.1, 0.1)) fig = plt.figure() ax = fig.add_subplot(111, projection='3d') ax.plot_trisurf(verts[:, 0], verts[:,1], faces, verts[:, 2], cmap='Spectral', lw=1) plt.show()
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