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83 lines
1.9 KiB
Groff
83 lines
1.9 KiB
Groff
.TH GML2GV,GV2GML 1 "24 June 2011"
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.SH NAME
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gml2gv,gv2gml \- GML-DOT converters
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.SH SYNOPSIS
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.B gml2gv
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[
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.B \-?v
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]
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[
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.BI -g gname
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]
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[
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.BI -o outfile
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]
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[
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.I files
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]
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.br
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.B gv2gml
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[
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.B \-?
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]
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[
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.BI -o outfile
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]
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[
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.I files
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]
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.SH DESCRIPTION
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.B gml2gv
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converts a graph specified in the GML format to a graph in the GV (formerly DOT) format.
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.B gv2gml
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converts a graph specified in the GV format to a graph in the GML format.
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.SH OPTIONS
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The following options are supported:
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.TP
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.B \-v
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Turns on verbose mode
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.TP
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.B \-?
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Prints usage information and exits.
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.TP
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.BI \-g "gname"
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The string \fIgname\fP is used as the name of the generated graph.
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If multiple graphs are generated, subsequent graphs use the name
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\fIgname\fP appended with an integer.
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.TP
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.BI \-o "outfile"
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Prints output to the file \fIoutfile\fP. If not given, \fBgml2gv\fP
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uses stdout.
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.TP
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.SH OPERANDS
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The following operand is supported:
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.TP 8
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.I files
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Names of files containing 1 or more graphs in GML.
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If no
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.I files
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operand is specified,
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the standard input will be used.
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.SH RETURN CODES
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Return \fB0\fP
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if there were no problems during conversion;
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and non-zero if any error occurred.
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.SH "LIMITATIONS"
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As both the graph and graphics models of GV and GML differ significantly, the
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conversion is at best approximate. In particular, it is not clear how multiedges
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are differentiated in GML, so multiedges are created in GV with no user-available
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key. Also, no attribute information is lost, in that
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any GML attributes that aren't converted to GV equivalents are retained as
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attributes in the output graph.
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.P
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At present,
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.B gv2gml
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does not support subgraphs and clusters. In addition, there does not appear to be
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a standard mechanism for specifying default node and edge attributes in GML, so
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any attributes are repeated for every node and edge.
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.SH AUTHORS
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Emden R. Gansner <erg@research.att.com>
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.SH "SEE ALSO"
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dot(1), libcgraph(3)
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