#18289: Make graph display configurable
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       Reporter:  vbraun             |        Owner:
           Type:  defect             |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-6.7
      Component:  graph theory       |   Resolution:
       Keywords:                     |    Merged in:
        Authors:  Volker Braun       |    Reviewers:  Nathann Cohen
Report Upstream:  N/A                |  Work issues:
         Branch:                     |       Commit:
  u/vbraun/graph_preference          |  6f1f1fe014e16abb644ba521347f0cbf085dff4a
   Dependencies:                     |     Stopgaps:
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Comment (by vdelecroix):

 Hello,

 Perhaps it would be cool to first decide once for all the semantic of all
 our display functions and methods in sage? There was a thread open for
 that purpose in Sage. I guess we could open a ticket only for deciding
 what should we do with `show`, `plot`, `pretty_print` `print`, etc.

 Concerning the current branch, I would prefer that the
 {{{
 is_small = (0 < self.num_verts() < 20)
 plot_graph = display_manager.preferences.plot_graphs != 'never' and \
   (display_manager.preferences.plot_graphs == 'always' or is_small)
 }}}
 actually belongs to the display manager itself. People implenting classes
 should not have to worry about the display manager preferences. Don't you
 think? I would separate:

 - which methods the class could possibly implement (e.g. `_latex_`,
 `_rich_latex_`, `_ascii_art_`, `plot`)
 - and let the display manager decide when we do things like `object`,
 `plot(object)` or `latex(object)`

 Vincent

--
Ticket URL: <http://trac.sagemath.org/ticket/18289#comment:85>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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