acyclic
(1)
Name
acyclic - make directed graph acyclic
Synopsis
acyclic [ -nv? ] [ -o outfile ] [ file ]
Description
User Commands ACYCLIC(1)
NAME
acyclic - make directed graph acyclic
SYNOPSIS
acyclic [ -nv? ] [ -o outfile ] [ file ]
DESCRIPTION
acyclic is a filter that takes a directed graph as input and
outputs a copy of the graph with sufficient edges reversed
to make the graph acyclic. The reversed edge inherits all of
the attributes of the original edge. The optional file argu-
ment specifies where the the input graph is stored; by
default, the program reads from stdin.
OPTIONS
The following options are supported:
-n No output is produced, though the return value will
indicate whether the graph is acyclic or not.
-v Print information about whether the file is acyclic,
has a cycle or is undirected.
-o outfile
causes the output to be written to the specified file;
by default, output is written to stdout.
-? option causes the program to print usage information.
RETURN CODES
acyclic returns 0 if the graph is acyclic; 1 if the graph
has a cycle; 2 if the graph is undirected; and 255 if there
are any errors.
BUGS
If the graph is strict and there is a cycle of length 2, the
attributes of the reversed edge are lost.
Some edge attributes are non-symmetric, referring to either
the head or tail node. At present, there is no mechanism or
convention for correctly switching or renaming these.
AUTHORS
Stephen C. North <north@research.att.com>
Emden R. Gansner <erg@research.att.com>
ATTRIBUTES
See attributes(5) for descriptions of the following
attributes:
SunOS 5.11 Last change: 21 March 2001 1
User Commands ACYCLIC(1)
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | image/graphviz |
+---------------+------------------+
|Stability | Volatile |
+---------------+------------------+
SEE ALSO
gc(1), dot(1), gvpr(1), gvcolor(1), ccomps(1), sccmap(1),
tred(1), libgraph(3)
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original
community source was downloaded from
http://www.graphviz.org/pub/graphviz/sta-
ble/SOURCES/graphviz-2.28.0.tar.gz
Further information about this software can be found on the
open source community website at http://www.graphviz.org/.
SunOS 5.11 Last change: 21 March 2001 2