tred (1) - Linux Man Pages
tred: transitive reduction filter for directed graphs
tred - transitive reduction filter for directed graphs
SYNOPSIStred [ -v? ] [ files ]
DESCRIPTIONtred 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.
OPTIONSThe following options are supported:
- Verbose output.
- Print usage information.
OPERANDSThe 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.
BUGSUsing bitmaps internally would substantially decrease running time.
DIAGNOSTICSIf a graph has cycles, its transitive reduction is not uniquely defined. In this case tred emits a warning.
AUTHORSStephen C. North <north [at] research.att.com>
Emden R. Gansner <erg [at] research.att.com>
SEE ALSOgc(1), dot(1), acyclic(1), gvpr(1), gvcolor(1), ccomps(1), sccmap(1), libgraph(3)
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