Section: User Commands (1)
Updated: 24 June 2011
gml2gv,gv2gml - GML-DOT converters
converts a graph specified in the GML format to a graph in the GV (formerly DOT) format.
converts a graph specified in the GV format to a graph in the GML format.
The following options are supported:
Turns on verbose mode
Prints usage information and exits.
The string gname is used as the name of the generated graph.
If multiple graphs are generated, subsequent graphs use the name
gname appended with an integer.
Prints output to the file outfile. If not given, gml2gv
The following operand is supported:
Names of files containing 1 or more graphs in GML.
operand is specified,
the standard input will be used.
if there were no problems during conversion;
and non-zero if any error occurred.
As both the graph and graphics models of GV and GML differ significantly, the
conversion is at best approximate. In particular, it is not clear how multiedges
are differentiated in GML, so multiedges are created in GV with no user-available
key. Also, no attribute information is lost, in that
any GML attributes that aren't converted to GV equivalents are retained as
attributes in the output graph.
does not support subgraphs and clusters. In addition, there does not appear to be
a standard mechanism for specifying default node and edge attributes in GML, so
any attributes are repeated for every node and edge.
Emden R. Gansner <email@example.com>