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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 http://www.graphviz.org/content/color-names#brewer).

-v turns on verbose mode.

-? Print usage and exit.

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