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>
SEE ALSO
gc(1), acyclic(1), gvpr(1), gvcolor(1), ccomps(1), sccmap(1), tred(1),
libgraph(3)
27 March 2008 GC(1)