Creating large graphs with Tulip

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gvpack

GVPACK(1)						      General Commands Manual							 GVPACK(1)

NAME

       gvpack - merge and pack disjoint graphs

SYNOPSIS

       gvpack [ -nguv?	] [ -mmargin ] [ -ooutfile ] [ -Gname=value ] [ files ]

DESCRIPTION

       gvpack reads in a stream of graphs, combines the graphs into a single layout, and produces a single graph serving as the union of the input
       graphs. The input graphs must be in dot format, and must have all necessary layout information. Acceptable input is produced by applying  a
       Graphviz layout program, such as dot or neato, with no -T flag.

       By  default, the packing is done at the cluster level. Thus, parts of one graph will not intrude into any top-level clusters or overlap any
       nodes or edges of another.

       The output of gvpack can be used to produce concrete output by applying neato -s -n2 with the desired -T flag.

OPTIONS

       The following options are supported:

       -g     Combines the graphs at the graph level. This uses more space, but prevents parts of  one	graph  from  occurring	between  parts	of
	      another.

       -Gname=value
	      Specifies attributes to be added to the resulting union graph. For example, this can be used to specify a graph label.

       -mmargin
	      Packs the graphs allowing a margin of output points around the parts.

       -n     Combines the graphs at the node level. Clusters are ignored in the packing.

       -ooutput
	      Prints output to the file output. If not given, gvpack uses stdout.

       -u     Don't pack the graphs. Just combine them into a single graph.

       -v     Verbose mode.

       -?     Prints usage information and exit.

OPERANDS

       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.

RETURN CODES

       gvpack returns 0 if there were no problems, and non-zero otherwise.

EXAMPLES

       ccomps -x abc.dot | dot | gvpack | neato -s -n2 -Tps
       This  pipeline  decomposes  the graph in abc.dot into its connected components, lays out each using dot, packs them all together again, and
       produces the final drawing in PostScript. Of course, there is nothing to prevent one from using different layouts for each component.

BUGS

       All the input graphs must be directed or undirected.

       An input graph should not have a label, since this will be used in its layout. Since gvpack ignores root graph labels, resulting layout may
       contain some extra space.

       gvpack unsets the bounding box attribute of all non-cluster subgraphs.

AUTHORS

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

SEE ALSO

       gvpr(1), dot(1), neato(1), twopi(1), ccomps(1), libpack(3)

								   8 April 2003 							 GVPACK(1)

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