circo

Render a graph with circular layout to PNG

$ circo -Tpng [input.dot] -o [output.png]

$ circo -Tsvg [input.dot] -o [output.svg]

$ circo -Tpdf [input.dot] -o [output.pdf]

$ cat [input.dot] | circo -Tpng > [output.png]

$ circo -T?

circo [-Tformat] [-o outfile] [-Klayout] [-Gname=value] [-Nname=value] [-Ename=value] [files...]

circo is a Graphviz layout engine that produces circular graph layouts. It identifies biconnected components and arranges nodes on circles, minimizing edge crossings by placing edges on the circle's perimeter when possible.
The tool uses a recursive radial algorithm for the block-cutpoint tree. Outerplanar components receive planar layouts. It is suitable for telecommunications networks and cyclic structures.

-Tformat

Output format: png, svg, pdf, ps, dot, json, gif, jpg, and more

Write output to file instead of stdout

Set graph attribute

Set default node attribute

Set default edge attribute

Override layout engine

Node to use as root of the layout

Minimum separation between nodes (default: 1.0)

Draw entire graph around one circle

Part of the Graphviz package; all layout engines (dot, neato, circo, twopi, fdp, sfdp) share the same command-line interface and are implemented as plugins.

Circo implements algorithms described by Six and Tollis (GD '99, ALENEX '99) and Kaufmann and Wiese (GD '02). Graphviz was originally developed at AT&T Labs Research.

dot(1), neato(1), twopi(1), fdp(1), sfdp(1)