title: Matplotlib 3D scatter plot no facecolor
body: <p>I have been struggling to find how to make 3d scatter plots in matplotlib with only marker edgecolor and no marker facecolor. Something like hollow markers, like matlab does.</p>
  
  <p>Explanatory picture:
  <a href="http://i.stack.imgur.com/LnnOa.jpg" rel="nofollow">http://i.stack.imgur.com/LnnOa.jpg</a></p>
  
  <p>Until now, all I have been able to do is something like this:
  <a href="http://ceng.mugla.edu.tr/sharedoc/python-matplotlib-doc-1.0.1/html/_images/scatter3d_demo.png" rel="nofollow">http://ceng.mugla.edu.tr/sharedoc/python-matplotlib-doc-1.0.1/html/_images/scatter3d_demo.png</a></p>
  
  <p>Which is far from ideal, based on the number of samples I have to visualize.</p>
  
  <p>Has anybody managed to do this?</p>