|TRED(1)||General Commands Manual||TRED(1)|
NAME¶tred - transitive reduction filter for directed graphs
SYNOPSIS¶tred [ -v? ] [ files ]
DESCRIPTION¶tred computes the transitive reduction of directed graphs, and prints the resulting graphs to standard output. This removes edges implied by transitivity. Nodes and subgraphs are not otherwise affected. The ``meaning'' and validity of the reduced graphs is application dependent. tred is particularly useful as a preprocessor to dot to reduce clutter in dense layouts.
Undirected graphs are silently ignored.
OPTIONS¶The following options are supported:
- Verbose output.
- Print usage information.
OPERANDS¶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.
BUGS¶Using bitmaps internally would substantially decrease running time.
DIAGNOSTICS¶If a graph has cycles, its transitive reduction is not uniquely defined. In this case tred emits a warning.
AUTHORS¶Stephen C. North <firstname.lastname@example.org>
Emden R. Gansner <email@example.com>
SEE ALSO¶gc(1), dot(1), acyclic(1), gvpr(1), gvcolor(1), ccomps(1), sccmap(1), libgraph(3)
|21 March 2001|