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       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

       The conversion can only handle one graph per GXL file.

       There are some GXL constructs which gxl2gv cannot handle.


       Krishnam Pericherla <>
       Emden R. Gansner <>


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

                                         20 December 2002                        GXL2GV,GV2GXL(1)