matplotlib 带有更改标签的 3D 绘图

所以我有一个 3D 实时更新图！它一次只显示一个点，因此我可以轻松跟踪该点的运动！但问题是：

无论我做什么，该点总是放置在图表的中心，并且轴上的刻度线会发生变化以实现这一点。这让我的生活变得非常困难，因为我看不到这一点。这是我的代码：

from mpl_toolkits.mplot3d import Axes3D
import matplotlib.pyplot as plt
from pylab import *
import time
import pandas as pd
import pickle
def pickleLoad(pickleFile):
    pkl_file = open(pickleFile, 'rb')
    data = pickle.load(pkl_file)
    pkl_file.close()
    return data
data = pickleLoad('/Users/ryansaxe/Desktop/kaggle_parkinsons/accelerometry/LILY_dataframe')
data = data.reset_index(drop=True)
df = data.ix[0:,['x.mean','y.mean','z.mean','time']]
ion()
fig = figure()
ax = fig.add_subplot(111, projection='3d')
count = 0
plotting = True
labels = range(-10,11)
ax.set_xlabel('X Label')
ax.set_ylabel('Y Label')
ax.set_zlabel('Z Label')
ax.set_yticklabels(labels)
ax.set_xticklabels(labels)
ax.set_zticklabels(labels)
lin = None
while plotting:
    df2 = df.ix[count]
    count += 1
    xs = df2['x.mean']
    ys = df2['y.mean']
    zs = df2['z.mean']
    t = df2['time']
    ax.set_title(t)
    if lin is not None:
        lin.remove()
    lin = ax.scatter(xs, ys, zs)

    draw()
    pause(0.01)
    if count > 100:
        plotting = False
ioff()
show()

这是数据的示例：

     x.mean    y.mean    z.mean                 time
0 -1.982905  3.395062  8.558263  2012-01-18 14:00:03
1  0.025276 -0.399172  7.404849  2012-01-18 14:00:04
2 -0.156906 -8.875595  1.925565  2012-01-18 14:00:05
3  2.643088 -8.307801  2.382624  2012-01-18 14:00:06
4  3.562265 -7.875230  2.312898  2012-01-18 14:00:07
5  4.441432 -7.907592  2.851774  2012-01-18 14:00:08
6  4.124187 -7.854146  2.727229  2012-01-18 14:00:09
7  4.199698 -8.135596  2.677706  2012-01-18 14:00:10
8  4.407856 -8.133449  2.214902  2012-01-18 14:00:11
9  4.096238 -8.453822  1.359692  2012-01-18 14:00:12

那么我该怎么做才能使刻度线固定，以便点移动而不是刻度线改变？

An Axes3D对象（你的ax变量）有以下方法：set_xlim, set_ylim, and set_zlim。您可以使用它们来修复轴的限制。

文档：

• set_xlim
• 设置_xlim3d

Edit

Using set_xlim等对我有用。这是我的代码：

#!python2

from mpl_toolkits.mplot3d import Axes3D
from pylab import *

data = [
    [-1.982905,  3.395062,  8.558263,  '2012-01-18 14:00:03'],
    [ 0.025276, -0.399172,  7.404849,  '2012-01-18 14:00:04'],
    [-0.156906, -8.875595,  1.925565,  '2012-01-18 14:00:05'],
    [ 2.643088, -8.307801,  2.382624,  '2012-01-18 14:00:06'],
    [3.562265, -7.875230,  2.312898,  '2012-01-18 14:00:07'],
    [4.441432, -7.907592,  2.851774,  '2012-01-18 14:00:08'],
    [4.124187, -7.854146,  2.727229,  '2012-01-18 14:00:09'],
    [4.199698, -8.135596,  2.677706,  '2012-01-18 14:00:10'],
    [4.407856, -8.133449,  2.214902,  '2012-01-18 14:00:11'],
    [4.096238, -8.453822,  1.359692,  '2012-01-18 14:00:12'],
]

ion()
fig = figure()
ax = fig.add_subplot(111, projection='3d')
ax.set_xlabel('X Label')
ax.set_ylabel('Y Label')
ax.set_zlabel('Z Label')
ax.set_xlim((-10, 11))
ax.set_ylim((-10, 11))
ax.set_zlim((-10, 11))

lin = None
for x, y, z, t in data:
    ax.set_title(t)
    if lin is not None:
        lin.remove()
    lin = ax.scatter(x, y, z)
    draw()
    pause(0.1)

ioff()
show()

Edit 2

您可以查看关闭默认情况下打开的轴自动缩放功能。也许这会压倒一切set_lim方法。

文档：

• 自动缩放
• 自动缩放视图