[Yt-svn] New issue 321 in yt: camera exponential zoom fails when centered on 0.0

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New issue 321: camera exponential zoom fails when centered on 0.0
https://bitbucket.org/yt_analysis/yt/issue/321/camera-exponential-zoom-fails-when

samskillman on Wed, 9 Nov 2011 23:49:23 +0100:

Description:
  When zooming in with a center of 0.0 (in any of the 3 dimensions), using exponential=True in move_to leads to nan's since 

position_diff = (na.array(final)/self.center)*1.0

and self.center will have a 0.0.  

We should replace this with a general way to move in an exponential fashion that allows for zooming on 0.0.

Responsible:
  chummels
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