我觉得我必须遗漏一些非常简单的东西。我正在尝试在散点图中绘制3D矩阵。这就是我所拥有的
import numpy as np
import matplotlib.pyplot as plt
from pylab import plot
from mpl_toolkits.mplot3d import Axes3D as axes
from matplotlib import cm
mat = np.matrix([ [245, 10, 3], [245, 7, 3], [246, 10, 3] ])
matt = mat.T
x = matt[0]
y = matt[1]
z = matt[2]
fig = plt.figure()
ax = fig.add_subplot(1, 1, 1, projection='3d')
ax.scatter(x, y, z, zdir='z', c = 'red')
plt.show()
简单，对吧？但我不断收到以下错误：
Exception in Tkinter callback
Traceback (most recent call last):
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1489, in __call__
return self.func(*args)
File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_tkagg.py", line 276, in resize
self.show()
File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_tkagg.py", line 348, in draw
FigureCanvasAgg.draw(self)
File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_agg.py", line 451, in draw
self.figure.draw(self.renderer)
File "/usr/lib/pymodules/python2.7/matplotlib/artist.py", line 55, in draw_wrapper
draw(artist, renderer, *args, **kwargs)
File "/usr/lib/pymodules/python2.7/matplotlib/figure.py", line 1034, in draw
func(*args)
File "/usr/lib/pymodules/python2.7/mpl_toolkits/mplot3d/axes3d.py", line 248, in draw
for col in self.collections]
File "/usr/lib/pymodules/python2.7/mpl_toolkits/mplot3d/art3d.py", line 319, in do_3d_projection
vxs, vys, vzs, vis = proj3d.proj_transform_clip(xs, ys, zs, renderer.M)
File "/usr/lib/pymodules/python2.7/mpl_toolkits/mplot3d/proj3d.py", line 203, in proj_transform_clip
return proj_transform_vec_clip(vec, M)
File "/usr/lib/pymodules/python2.7/mpl_toolkits/mplot3d/proj3d.py", line 160, in proj_transform_vec_clip
vecw = np.dot(M, vec)
TypeError: can't multiply sequence by non-int of type 'float'
我不知道如何解决。我哪里错了？代码与this非常相似，所以也许我正在削减矩阵错误或什么？ This也没有解决这个问题。有什么想法吗？
编辑：好的，我最后只是通过旧方式重新切片：
sx, sy = mat.shape
for i in range(0, sx):
x.append(mat[i,0])
y.append(mat[i,1])
z.append(mat[i,2])
这可能不是最好的方式但我生气了。它有效，所以就是这样。