SYNOPSIS
       unflatten [-f] [-llen] [-clen ] [ -o outfile ] [ files ]

DESCRIPTION
       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  lay-
       out compaction.

OPTIONS
       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.

OPERANDS
       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.

AUTHORS
       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)