2025.7.16 3Dグラフ（ドット）【matplotlib】

scatter 関数を使う。

code:p.py

import torch as pt

import matplotlib.pyplot as plt

xx = pt.linspace(-5, 5, 20)

xy = pt.linspace(-5, 5, 20)

xxx, yyy = pt.meshgrid(xx, yy, indexing='xy')

zzz = (xxx**2 + yyy - 11)**2 + (xxx + yyy**2 - 7)**2

fig = plt.figure()

ax = fig.add_subplot(projection='3d')

ax.scatter(xxx, yyy, zzz)

plt.show()

https://scrapbox.io/files/68775508813619d1ee56b000.png