#9699: Barycentric embedding for planar graphs.
--------------------------------------------+-------------------------------
   Reporter:  fidelbarrera                  |       Owner:  jason, ncohen, rlm
       Type:  enhancement                   |      Status:  needs_work        
   Priority:  major                         |   Milestone:  sage-4.6.1        
  Component:  graph theory                  |    Keywords:                    
     Author:  Fidel Barrera-Cruz            |    Upstream:  N/A               
   Reviewer:  Nathann Cohen, Robert Miller  |      Merged:                    
Work_issues:                                |  
--------------------------------------------+-------------------------------
Changes (by rlm):

  * status:  needs_review => needs_work
  * reviewer:  => Nathann Cohen, Robert Miller


Comment:

 Doctest fail:

 {{{
 sage -t -long ./sage/graphs/generic_graph.py
 **********************************************************************
 File "/home/rlmill/sage-4.6/devel/sage-main/sage/graphs/generic_graph.py",
 line 2620:
     sage: g.layout(layout = "planar", save_pos = True)
 Expected:
     {0: [1, 1], 1: [2, 2], 2: [3, 2], 3: [1, 4], 4: [5, 1], 5: [0, 5], 6:
 [1, 0]}
 Got:
     {0: (-0.433012701892, -0.25), 1: (1.11022302463e-16,
 -7.40148683083e-17), 2: (0.144337567297, 0.25), 3: (0.433012701892,
 -0.25), 4: [0.0, 1.0], 5: [0.866025403784, -0.5], 6: [-0.866025403784,
 -0.5]}
 **********************************************************************
 }}}

 Also, all of the positions should be the same format: here some are tuples
 and others are lists.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9699#comment:11>
Sage <http://www.sagemath.org>
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