在matplotlib中改變facecolor的facecolor顏色

Question

我正在嘗試刪除已設置了alpha和facecolors的圓柱圖的邊緣顏色。但是，如果我還設置了顏色，我仍然可以看到邊緣顏色。如果我刪除alpha = 0.5語句，然後問題得到解決，但我需要的alpha爲< 1。這裏有一個例子：

你仍然可以看到，即使艱難，我設置了edgecolor爲無藍色edgecolors。

這是我用plot_surface（）

ax.plot_surface(X, Y,Z, edgecolor = "None", facecolors = col1, alpha = 0.5) 

然而，邊緣顏色仍然存在的代碼？但是，如果我刪除了plot_surface（）內的facecolors語句，那麼邊緣顏色不再存在。下面是完整的代碼：

import numpy as np 
from matplotlib import cm 
from matplotlib import pyplot as plt 
from mpl_toolkits.mplot3d import Axes3D 
from scipy.linalg import norm 
from mpl_toolkits.mplot3d.art3d import Poly3DCollection 
import random 
import numpy as np 

fig = plt.figure() 
ax = fig.add_subplot(111, projection='3d') 
origin = np.array([0, 0, 0]) 
#axis and radius 

p0 = np.array([0, 0, 0]) 
p1 = np.array([8, 8, 8]) 
R = 4 
#vector in direction of axis 
v = p1 - p0 
#find magnitude of vector 
mag = norm(v) 
#unit vector in direction of axis 
v = v/mag 
#make some vector not in the same direction as v 
not_v = np.array([1, 0, 0]) 
if (v == not_v).all(): 
    not_v = np.array([0, 1, 0]) 
#make vector perpendicular to v 
n1 = np.cross(v, not_v) 
#normalize n1 
n1 /= norm(n1) 
#make unit vector perpendicular to v and n1 
n2 = np.cross(v, n1) 
#surface ranges over t from 0 to length of axis and 0 to 2*pi 
t = np.linspace(0, mag, 200) 
theta = np.linspace(0, 2 * np.pi, 100) 
#use meshgrid to make 2d arrays 
t, theta = np.meshgrid(t, theta) 
#generate coordinates for surface 
X, Y, Z = [p0[i] + v[i] * t + R * np.sin(theta) * n1[i] + R * np.cos(theta) *  n2[i] for i in [0, 1, 2]] 
col1 = plt.cm.Blues(np.linspace(0,1,200)) # linear gradient along the t-axis 
col1 = np.repeat(col1[np.newaxis,:, :], 100, axis=0) # expand over the theta- axis 


ax.plot_surface(X, Y,Z, edgecolor = None, facecolors = col1, alpha = 0.5) 
#plot axis 
ax.plot(*zip(p0, p1), color = 'red') 
ax.set_xlim(0, 10) 
ax.set_ylim(0, 10) 
ax.set_zlim(0, 10) 
plt.axis('off') 
ax.axes.get_xaxis().set_visible(False) 
ax.axes.get_yaxis().set_visible(False) 

plt.show() 

Answer 1

設置在plot_surface()linewidth=0解決了這個問題：

ax.plot_surface(X, Y, Z, edgecolor=None, facecolors=col1, alpha=0.5, linewidth=0) 

PS：我沒覺得這值得的答案，但每個：Question with no answers, but issue solved in the comments (or extended in chat) ，我將其添加爲快速回答，因此問題可以標記爲已解決