假设螺旋线定义如下

n = 100

z = np.linspace(0, 8*np.pi, n)
x = np.cos(z)
y = np.sin(z)

你可以使用matplotlib中的plot_trisurf。首先，你需要创建外边缘点和内边缘点。例如：

inner_radius = 0.6
outer_radius = 1.4

x_inner = np.cos(z)*inner_radius
x_outer = np.cos(z)*outer_radius
x_both = np.concatenate([x_inner, x_outer])

y_inner = np.sin(z)*inner_radius
y_outer = np.sin(z)*outer_radius
y_both = np.concatenate([y_inner, y_outer])

然后是三角剖分的三角形

triangles = []
for i in range(0, n//2 - 1):
    triangles.append([i, i + 1, n + i])
    triangles.append([n + i + 1, n + i, i + 1])

最后绘制表面

fig = plt.figure(figsize=(8, 8))
ax = plt.axes(projection='3d')
ax.plot_trisurf(x_both, y_both, np.concatenate([z, z]), triangles=triangles)
plt.show()

结果：