unflatten - Man Page

adjust directed graphs to improve layout aspect ratio

Examples (TL;DR)


unflatten [-f?] [-llen] [-clen ] [ -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).  


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:


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>

See Also

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


21 January 2001