title: how to avoid exponential ticks in mayavi's mlab.axes?
body: <p>Is there a parameter to control that?I can not find it.<br/>
  I use </p>
  
  <pre><code>import numpy as np
  from enthought.mayavi import mlab
  from scipy.interpolate import griddata
  from enthought.mayavi.modules.axes import Axes
  
  x,y,z =np.loadtxt('mydata',delimiter=',',usecols=(0,1,2),unpack=True)
  xi = np.linspace(min(x), max(x),200)
  yi = np.linspace(min(y), max(y),200).reshape(200,1) 
  zi = griddata((x, y), z, (xi, yi),method='nearest')  
  mlab.surf(xi,yi,zi,warp_scale="auto")
  mlab.axes.label_format='%.2f'
  mlab.axes(xlabel='x', ylabel='y', zlabel='z',ranges=(1000,1100,1200),nb_labels=5)
  mlab.show()
  </code></pre>
  
  <p>and the ticks are like 1.08e+03 and 1.18e+03 in the output figure.I add 
  <code>mlab.axes.label_format='%.2f'</code>,but nothing changes.</p>