edgepaint

Color graph edges

$ edgepaint [graph.dot] -o [colored.dot]

$ edgepaint -angle [15] [graph.dot]

$ edgepaint -color_scheme [accent8] [graph.dot]

edgepaint [options] [input] -o output

edgepaint assigns colors to edges in a graph to improve visual distinction. It's part of Graphviz and helps make complex graphs more readable by ensuring adjacent edges have different colors.
The tool uses graph coloring algorithms to minimize color similarity between edges that share nodes or cross each other. This makes edge paths easier to follow in dense graphs.
edgepaint is typically used after layout with dot or other Graphviz tools.

INPUT

Input DOT file.

Output file.

Minimum angle between colors.

Color scheme to use.

Share colors at endpoints.

Display help information.

Input must be already laid out graph. Limited color schemes available. Very dense graphs may still be hard to read.

edgepaint is part of Graphviz, developed at AT&T Labs Research. It addresses the practical problem of visual edge distinction in automatically laid out graphs.

dot(1), neato(1), graphviz(7)