gml2gv

GML2GV,GV2GML(1)            General Commands Manual           GML2GV,GV2GML(1)

NAME
       gml2gv,gv2gml - GML-DOT converters

SYNOPSIS
       gml2gv [ -?v ] [ -ggname ] [ -ooutfile ] [ files ]
       gv2gml [ -?  ] [ -ooutfile ] [ files ]

DESCRIPTION
       gml2gv  converts  a graph specified in the GML format to a graph in the
       GV (formerly DOT) format.  gv2gml converts a graph specified in the  GV
       format to a graph in the GML format.

OPTIONS
       The following options are supported:

       -v     Turns on verbose mode

       -?     Prints usage information and exits.

       -ggname
              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.

       -ooutfile
              Prints  output  to  the  file outfile. If not given, gml2gv uses
              stdout.

       OPERANDS
              The following operand is supported:

       files   Names of files containing 1 or more graphs in GML.  If no files
               operand is specified, the standard input will be used.

RETURN CODES
       Return  0  if there were no problems during conversion; and non-zero if
       any error occurred.

LIMITATIONS
       As both the graph and graphics models of GV  and  GML  differ  signifi-
       cantly, the conversion is at best approximate. In particular, it is not
       clear how multiedges are differentiated in GML, so multiedges are  cre-
       ated  in  GV with no user-available key. Also, no attribute information
       is lost, in that any GML attributes that aren't converted to GV equiva-
       lents are retained as attributes in the output graph.

       At  present,  gv2gml  does not support subgraphs and clusters. In addi-
       tion, 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.

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

SEE ALSO
       dot(1), libcgraph(3)

                                 24 June 2011                 GML2GV,GV2GML(1)