gxl2gv,gv2gxl - GXL-GV converters


   gxl2gv [ -gd?  ] [ -ooutfile ] [ files ]
   gv2gxl [ -gd?  ] [ -ooutfile ] [ files ]


   gxl2gv  converts  between  graphs  represented  in  GXL  and  in the GV
   language. Unless a conversion type is specified using  a  flag,  gxl2gv
   will deduce the type of conversion from the suffix of the input file, a
   ".gv" suffix causing a conversion from GV to GXL, and a  ".gxl"  suffix
   causing  a  conversion from GXL to GV.  If no suffix is available, e.g.
   when the input is from a pipe,  and  no  flags  are  used  then  gxl2gv
   assumes  the  type  of  the input file from its executable name so that
   gxl2gv converts from GXL to GV, and gv2gxl converts from GV to GXL.

   GXL supports a much richer graph model than GV. gxl2gv will attempt  to
   map  GXL  constructs  into  the  analogous  GV  construct  when this is
   possible. If not, the GXL information is stored as  an  attribute.  The
   intention  is that applying gxl2gv|gv2gxl is semantically equivalent to
   the identity operator.


   The following options are supported:

   -g     The command name and input  file  extensions  are  ignored,  the
          input is taken as a GV file and a GXL file is generated.

   -d     The  command  name  and  input  file extensions are ignored, the
          input is taken as a GXL file and a GV file is generated.

   -?     Prints usage information and exits.

   -o outfile
          If specified, the output will be written into the file  outfile.
          Otherwise, output is written to standard out.


   The following operand is supported:

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


   Both gxl2gv and gv2gxl return  0  if  there  were  no  problems  during
   conversion; and non-zero if any error occurred.


   gxl2gv  will only convert in one direction even if given multiple files
   with varying suffixes.

   The conversion can only handle one graph per GXL file.

   There are some GXL constructs which gxl2gv cannot handle.


   Krishnam Pericherla <kp@research.att.com>
   Emden R. Gansner <erg@research.att.com>


   dot(1), libgraph(3), libagraph(3), neato(1), twopi(1)

                           20 December 2002               GXL2GV,GV2GXL(1)


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