title: matplotlib 3d plot with changing labels
body: <p>So I have a 3d live-updating graph! it only shows one point at a time so I can easily track the motion of the point! But here is the problem:</p>
  
  <p>No matter what I seem to do, the point is always placed in the center of the graph and the tick marks on the axis change in order to do that. This makes my life very difficult because I don't see the motion on the point. Here is my code:</p>
  
  <pre><code>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 &gt; 100:
          plotting = False
  ioff()
  show()
  </code></pre>
  
  <p>here is an example of the data:</p>
  
  <pre><code>     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
  </code></pre>
  
  <p><strong>So what can I do to make it so that the tick marks are fixed so the point moves rather than the tick marks changing?</strong></p>