Question

我正在尝试将pcolor图添加到此处给出的示例代码http://matplotlib.org/examples/mplot3d/2dcollections3d_demo.html

from mpl_toolkits.mplot3d import Axes3D
import numpy as np
import matplotlib.pyplot as plt

fig = plt.figure()
ax = fig.gca(projection='3d')

x = np.linspace(0, 1, 100)
y = np.sin(x * 2 * np.pi) / 2 + 0.5
ax.plot(x, y, zs=0, zdir='z', label='zs=0, zdir=z')

colors = ('r', 'g', 'b', 'k')
for c in colors:
    x = np.random.sample(20)
    y = np.random.sample(20)
    ax.scatter(x, y, 0, zdir='y', c=c)

xc = np.linspace(0, 1, 100)
yc = np.linspace(0, 1, 100)
fc = np.random.random((len(xc),len(yc)))
ax.pcolor(xc,yc,fc, zdir = 'x')

ax.legend()
ax.set_xlim3d(0, 1)
ax.set_ylim3d(0, 1)
ax.set_zlim3d(0, 1)

plt.show()

与原始脚本相比，只有少数新行。不幸的是，它并没有很好地结束，我真的不明白为什么。

Traceback (most recent call last):
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/matplotlib/artist.py", line 61, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/matplotlib/figure.py", line 1159, in draw
    func(*args)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/mpl_toolkits/mplot3d/axes3d.py", line 271, in draw
    for col in self.collections]
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/mpl_toolkits/mplot3d/axes3d.py", line 271, in <listcomp>
    for col in self.collections]
AttributeError: 'PolyCollection' object has no attribute 'do_3d_projection'

谢谢大家的支持。

Answer 1

目前尚不清楚您想要实现的目标。示例中有一个3D图，但pcolor是2D图。你无法在3D图中添加pcolor图，这就是你得到错误的原因，所以添加一个新图：

fig = plt.figure()
ax = fig.gca(projection='3d')

x = np.linspace(0, 1, 100)
y = np.sin(x * 2 * np.pi) / 2 + 0.5
ax.plot(x, y, zs=0, zdir='z', label='zs=0, zdir=z')

colors = ('r', 'g', 'b', 'k')
for c in colors:
    x = np.random.sample(20)
    y = np.random.sample(20)
    ax.scatter(x, y, 0, zdir='y', c=c)

ax.legend()
ax.set_xlim3d(0, 1)
ax.set_ylim3d(0, 1)
ax.set_zlim3d(0, 1)


fig = plt.figure()
xc = np.linspace(0, 1, 100)
yc = np.linspace(0, 1, 100)
fc = np.random.random((len(xc),len(yc)))
plt.pcolor(xc,yc,fc,cmap='RdBu')
plt.colorbar()

pcolor没有属性zdir，因此您需要以正确的方式调整xc,yc,fc的顺序，具体取决于您实际想要查看的内容。

matplotlib pcolor在用作＆＃34; 3D绘图时不能正常工作＆＃34;

1 个答案: