鉴于一般的 3D 平面方程，我如何在 python matplotlib 中绘制它?
问题描述：
假设我有一个 3D 平面方程:
Let's say I have a 3D plane equation:
ax+by+cz=d
如何在 python matplotlib 中绘制此图?
How can I plot this in python matplotlib?
我看到了一些使用 plot_surface 的例子，但它接受 x、y、z 值作为二维数组.我不明白如何将我的方程转换为 plot_surface 或 matplotlib 中可用于此目的的任何其他函数的参数输入.
I saw some examples using plot_surface, but it accepts x,y,z values as 2D array. I don't understand how can I convert my equation into the parameter inputs to plot_surface or any other functions in matplotlib that can be used for this.
答
import numpy as np
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D
a,b,c,d = 1,2,3,4
x = np.linspace(-1,1,10)
y = np.linspace(-1,1,10)
X,Y = np.meshgrid(x,y)
Z = (d - a*X - b*Y) / c
fig = plt.figure()
ax = fig.gca(projection='3d')
surf = ax.plot_surface(X, Y, Z)