unflatten(1)


NAME

   unflatten - adjust directed graphs to improve layout aspect ratio

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
   layout 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)

                            21 January 2001                   UNFLATTEN(1)





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