gv2gml(1)

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

6       gml2gv,gv2gml - GML-DOT converters
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SYNOPSIS

9       gml2gv [ -?v ] [ -ggname ] [ -ooutfile ] [ files ]
10       gv2gml [ -?  ] [ -ooutfile ] [ files ]
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DESCRIPTION

14       gml2gv  converts  a graph specified in the GML format to a graph in the
15       GV (formerly DOT) format.  gv2gml converts a graph specified in the  GV
16       format to a graph in the GML format.
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OPTIONS

19       The following options are supported:
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21       -v     Turns on verbose mode
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23       -?     Prints usage information and exits.
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25       -ggname
26              The string gname is used as the name of the generated graph.  If
27              multiple graphs are generated, subsequent graphs  use  the  name
28              gname appended with an integer.
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30       -ooutfile
31              Prints  output  to  the  file outfile. If not given, gml2gv uses
32              stdout.
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35       OPERANDS
36              The following operand is supported:
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38       files   Names of files containing 1 or more graphs in GML.  If no files
39               operand is specified, the standard input will be used.
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RETURN CODES

42       Return  0  if there were no problems during conversion; and non-zero if
43       any error occurred.
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LIMITATIONS

46       As both the graph and graphics models of GV  and  GML  differ  signifi‐
47       cantly, the conversion is at best approximate. In particular, it is not
48       clear how multiedges are differentiated in GML, so multiedges are  cre‐
49       ated  in  GV with no user-available key. Also, no attribute information
50       is lost, in that any GML attributes that aren't converted to GV equiva‐
51       lents are retained as attributes in the output graph.
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53       At  present,  gv2gml  does not support subgraphs and clusters. In addi‐
54       tion, there does not appear to be a standard mechanism  for  specifying
55       default node and edge attributes in GML, so any attributes are repeated
56       for every node and edge.
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AUTHORS

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