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# gvgen

Langue: en

Version: 330404 (ubuntu - 24/10/10)

Section: 1 (Commandes utilisateur)

# Sommaire

## NAME

gvgen - generate graphs

## SYNOPSIS

gvgen [ -d? ] [ -cn ] [ -Cx,y ] [ -g[f]x,y ] [ -G[f]x,y ] [ -hn ] [ -kn ] [ -bx,y ] [ -pn ] [ -sn ] [ -Sn ] [ -tn ] [ -Tx,y ] [ -wn ] [ -ooutfile ]

## DESCRIPTION

gvgen generates a variety of simple, regularly-structured abstract graphs.

## OPTIONS

The following options are supported:
-c n
Generate a cycle with n vertices and edges.
-C x,y
Generate an x by y cylinder. This will have x*y vertices and 2*x*y - y edges.
-g [f]x,y
Generate an x by y grid. If f is given, the grid is folded, with an edge attaching each pair of opposing corner vertices. This will have x*y vertices and 2*x*y - y - x edges if unfolded and 2*x*y - y - x + 2 edges if folded.
-G [f]x,y
Generate an x by y partial grid. If f is given, the grid is folded, with an edge attaching each pair of opposing corner vertices. This will have x*y vertices.
-h n
Generate a hypercube of degree n. This will have 2^n vertices and n*2^(n-1) edges.
-k n
Generate a complete graph on n vertices with n*(n-1)/2 edges.
-b x,y
Generate a complete x by y bipartite graph. This will have x+y vertices and x*y edges.
-p n
Generate a path on n vertices. This will have n-1 edges.
-s n
Generate a star on n vertices. This will have n-1 edges.
-S n
Generate a Sierpinski graph of order n. This will have 3*(3^(n-1) - 1)/2 vertices and 3^n edges.
-t n
Generate a binary tree of height n. This will have 2^n-1 vertices and 2^n-2 edges.
-T x,y
Generate an x by y torus. This will have x*y vertices and 2*x*y edges.
-w n
Generate a path on n vertices. This will have n-1 edges.
-o outfile
If specified, the generated graph is written into the file outfile. Otherwise, the graph is written to standard out.
-d
Make the generated graph directed.
-?
Print usage information.

## EXIT STATUS

gvgen exits with 0 on successful completion, and exits with 1 if given an ill-formed or incorrect flag, or if the specified output file could not be opened.

## AUTHOR

Emden R. Gansner <erg@research.att.com>