如果可以生成要绘制任意比例轮廓的数据,则有一种解决方法。在这种情况下,你可以用三元坐标来计算曲面坐标。

import plotly as py

import plotly.graph_objs as go

import numpy as np

def compute_in_barycentric_coordinates(a, b, c):

epsilon = 1e-6

if 0.0 < a < 1.0 and 0.0 < b < 1.0 and 0.0 < c < 1.0 and abs(a + b + c - 1.0) < epsilon:

return pow(a, 2) * pow(b, 1.5) * pow(c, 1.8)

return None

x_data = np.linspace(0, 1, 101)

y_data = np.linspace(0, 1, 101)

z_data = []

f = 1.0 / pow(3.0, 0.5)

for y in y_data:

next_slice = []

for x in x_data:

a = 1 - x - f*y

b = x - f*y

c = 2*f*y

z = compute_in_barycentric_coordinates(a, b, c)

next_slice.append(z)

z_data.append(next_slice)

data = [

go.Contour(

x=x_data,

y=y_data,

z=z_data,

)

]

py.offline.plot(data)

不过,这仍然是一个解决办法,所以如果你有一个更好的想法,我会很高兴听到你。