TRED(1) General Commands Manual TRED(1)
tred - transitive reduction filter for directed graphs
tred [ files ]
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 depen-
dent. tred is particularly useful as a preprocessor to dot to reduce
clutter in dense layouts.
Undirected graphs are silently ignored.
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.
Using bitmaps internally would substantially decrease running time.
If a graph has cycles, its transitive reduction is not uniquely
defined. In this case tred emits a warning.
Stephen C. North <email@example.com>
Emden R. Gansner <firstname.lastname@example.org>
gc(1), dot(1), acyclic(1), gvpr(1), gvcolor(1), ccomps(1), sccmap(1),
21 March 2001 TRED(1)
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