Man1 - unflatten.1

unflatten - adjust directed graphs to improve layout aspect ratio

unflatten [*-f?*] [*-l*/len/] [*-c*/len/ ] [ -o outfile ] [ files ]

unflatten is a preprocessor to dot that is used to improve the aspect ratio of graphs having many leaves or disconnected nodes. The usual layout for such a graph is generally very wide or tall. unflatten inserts invisible edges or adjusts the minlen on edges to improve layout compaction.

The following options are supported:

*-l*/ len/

The minimum length of leaf edges is staggered between 1 and len (a small integer).

-f

Enables the staggering of the -l option to fanout nodes whose indegree and outdegree are both 1. This helps with structures such as a -> {w x y z} -> b. This option only works if the -l flag is set.

*-c*/ len/

Form disconnected nodes into chains of up to len nodes.

*-o*/ outfile/

causes the output to be written to the specified file; by default, output is written to stdout.

-?

Prints the usage and exits.

The following operand is supported:

files

Names of files containing 1 or more graphs in dot format. If no files operand is specified, the standard input will be used.

Stephen C. North <north@research.att.com>
Emden R. Gansner <erg@research.att.com>

gc(1), dot(1), acyclic(1), gvpr(1), gvcolor(1), ccomps(1), tred(1), libgraph(3)