#2100: sensible defaults for aspect ratio
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   Reporter:  jason        |       Owner:  was     
       Type:  enhancement  |      Status:  new     
   Priority:  major        |   Milestone:  sage-4.6
  Component:  graphics     |    Keywords:          
     Author:               |    Upstream:  N/A     
   Reviewer:               |      Merged:          
Work_issues:               |  
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Comment(by jason):

 We have two concepts of "aspect ratio" that we'd like to expose to the
 user.

  * Figure aspect ratio -- controls the final image size, including any
 text labels, etc.  This will be set using the following options:
    * fig_aspect_ratio
      * number - make an image with the specified aspect ratio (within
 reason) using the figaspect matplotlib function (which tries to be
 marginally smart, which actually may be a dumb thing to do...)
      * 'auto' (default) - use bbox_inches='tight' to create a figure that
 holds the drawn objects
    * figsize
      * single number - use this as a base size for fig_aspect_ratio
 calculations (i.e., bigger numbers = bigger figures)
      * two numbers - an actual figure size in inches
  * Pixel aspect ratio
    * aspect_ratio -- the aspect ratio of a pixel in the image (or of a
 unit square in data coordinates, for example).  The default here will
 change depending on the type of plot
      * 'equal' or 1 -- square pixels.  This will be the default for most
 things
      * 'auto' -- plot the given data limits in the given (or computed)
 figsize, filling the figure
      * number -- ratio of width to height (or height to width; I can't
 remember).  For plot() and list_plot(), this will default to giving a
 golden ratio aspect ratio
    * aspect_ratio_adjust -- what should we adjust to achieve the desired
 aspect ratio for the items drawn?  Note that by default, the axes limits
 are enlarged slightly; to eliminate this, set axes_pad=0
      * 'box' (default) -- the frame axes
      * 'datalim' -- the data limits

 What do people think?

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/2100#comment:9>
Sage <http://www.sagemath.org>
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