edgepaint - edge coloring to disambiguate crossing edges


   [ options ] [ -o outfile ] [ files ]


   edgepaint  takes  as  input  a  graph  in DOT format with node position
   information (the pos attribute) and colors the edges in a manner making
   it easier to tell them apart.


   The following options are supported:

          accuracy with which to find the maximally different coloring for
          each node with regard to its neighbors. Default e = 0.01.

          color two edges differently if their  incidence  angle  is  less
          than a degrees. Default a=15.

          random  seed  to use. s must be an integer. If s is negative, we
          do |s| iterations with different seeds and pick the best.

          only applies  for  the  "lab"  color  scheme:  l1  and  l2  must
          integers, with 0 <= l1 <= l2 <=100. By default, we use "0,70"

          if  this  option is specified, edges that shares an node are not
          considered in conflict if they are close to parallel but are  on
          the opposite sides of the node (around 180 degree).

   -o f   write output to file f (default: stdout).

          specifies  the  color  scheme.  This can be "rgb", "gray", "lab"
          (default); or a comma-separated list of RGB colors in hex (e.g.,
          "#ff0000,#aabbed,#eeffaa")  representing  a palette; or a string
          specifying  a  Brewer  color  scheme   (e.g.,   "accent7";   see

   -v     turns on verbose mode.

   -?     Print usage and exit.


   At  present,  edgepaint  does  not handle graphs with loops or directed
   multiedges. So, a graph with edges a -> b and b -> a is acceptable, but
   not if it has edges a -> b and a -> b or a -- b and a -- b.


   Yifan Hu <yifanhu@research.att.com>


   gvmap(1), sfdp(1), neato (1), dot(1)

                           26 February 2014                     CLARIFY(1)


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