我只需要绘制 3D 散点图。
from mpl_toolkits import mplot3d
from matplotlib import pyplot as plt
ax = plt.axes(projection="3d")
ax.scatter(dots_x, dots_y, dots_z, c='red')
plt.show()
dots_x、dots_y、dots_z 是坐标（python 列表）。每次我运行程序时我都会得到ValueError: Invalid RGBA argument: (1.0, 0.0, 0.0, 0.300088123161615)
我对这个元组一无所知。但是如果我使用plot3D而不是scatter3D我会得到完美的曲线。
完整错误消息：
Traceback (most recent call last):
File "C:\Users\bozzy\AppData\Local\Programs\Python\Python36-32\lib\site-packages\matplotlib\colors.py", line 166, in to_rgba
rgba = _colors_full_map.cache[c, alpha]
KeyError: ((1.0, 0.0, 0.0, 0.300088123161615), None)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\bozzy\AppData\Local\Programs\Python\Python36-32\lib\site-packages\matplotlib\backends\backend_qt5.py", line 519, in _draw_idle
self.draw()
File "C:\Users\bozzy\AppData\Local\Programs\Python\Python36-32\lib\site-packages\matplotlib\backends\backend_agg.py", line 437, …