NAME

       nauty-vcolg - colour the vertices of graphs in all distinct ways

SYNOPSIS

       vcolg [-q] [-u|-T|-o] [-e#|-e#:#] [-m#] [-c#,..,#] [-f#] [infile [outfile]]

DESCRIPTION

              Read graphs or digraphs and colour their vertices in all possible ways with colours
              0,1,2,... .  Isomorphic graphs derived from the same input are suppressed.  If  the
              input graphs are non-isomorphic then the output graphs are also.

       -e# | -e#:#
              specify a value or range of the total value of the colours

       -m# number of available colours (default 2 if -c not given)

       -c#,..,#
              specify the maximum number of vertices of each colour

              The total must at least equal the number of vertices in the input.

       -d#,..,#
              minimum vertex degree for each colour (out-degree for digraphs)

       -D#,..,#
              maximum vertex degree for each colour (out-degree for digraphs)

       -d and -D can have fewer colours than -m/-c but not more

       -f# Use the group that fixes the first # vertices setwise

       -T     Use a simple text output format (nv ne {col} {v1 v2})

       -o     Use sparse6 (undirected) or digraph6 (directed) for output,

              provided m=2 and the inputs have no loops.

       -u     no output, just count them

       -q     suppress auxiliary information