NAME

       gout - output graphics from matrices and graphs

SYNOPSIS

       gout [options] [gfile] [xfile] [mfile] [vfile]

DESCRIPTION

       The  gout  program  creates graphics files of various types, representing the Scotch graph
       and mapping data which is passed to it.

       Source graph file gfile can only be a  centralized  graph  file.  File  xfile  stores  its
       associated  geometry, whenever necessary. File mfile represents label information attached
       to each of the graph vertices, for instance the index of the part  to  which  each  vertex
       belongs in the case of a mapping file. File vfile is the output graphics file, the type of
       which may differ according to the input parameters. When file  names  are  not  specified,
       data is read from standard input and written to standard output. Standard streams can also
       be explicitly represented by a dash '-'.

       When the proper libraries have been included at compile time,  gtst  can  directly  handle
       compressed  graphs,  both  as input and output. A stream is treated as compressed whenever
       its name is postfixed with a compressed file  extension,  such  as  in  'brol.grf.bz2'  or
       '-.gz'.  The compression formats which can be supported are the bzip2 format ('.bz2'), the
       gzip format ('.gz'), and the lzma format ('.lzma').

OPTIONS

       -h     Display some help.

       -ggeop Geometry parameters, which can be an arbitrary combination of any of the  following
              code letters:

              n      Do not read geometry data, when it is not available or not required, such as
                     when using the -om option.

              p      Permute Y and Z geometry dimensions.

              r      Rotate geometry by 90 degrees in the (X,Y) plane.

       -h     Display some help.

       -mn    Do not read mapping data, when it is not available or not required.

       -ooutp Select the output file type and allows to  provide  additional  parameters  between
              braces and separated by commas:

              i      OpenInventor 3D mesh file, to be viewed by means of programs such as ivview.
                     Additional parameters for this output file type are:

                     c      Color output.

                     g      Gray level output.

                     r      Remove cut edges.

                     v      View cut edges.

              m      PostScript matrix pattern file. Additional parameters for this  output  file
                     type are:

                     e      EPSF-type output.

                     f      Full-page output.

              p      PostScript 2D mesh file. This output module was intended for 2D meshes; as a
                     fallback, the Z coordinate is projected according to  isometric  perspective
                     rules,  but  drawings  of  full 3D objects are most likely to be unreadable.
                     Additional parameters for this output file type are:

                     c      Color output.

                     g      Gray level output.

                     e      EPSF-type output.

                     f      Full-page output.

                     s      Short clipping (disks excluded).

                     l      Large clipping (disks included).

                     a      Avoid displaying disks.

                     d      Display disks.

                     r      Remove cut edges.

                     v      View cut edges.

                     X=rat  Maximum x clipping ratio (in [0.0;1.0]).

                     x=rat  Minimum x clipping ratio.

                     Y=rat  Maximum y clipping ratio.

                     y=rat  Minimum y clipping ratio.

              t      Tulip 3D mesh file. Additional parameters for this output file type are:

                     b      Black and white output.

                     c      Color output.

                     a      Avoid displaying disks.

                     d      Display disks.

                     r      Remove cut edges.

                     v      View cut edges.

       -V     Display program version and copyright.

EXAMPLES

       Build an OpenInventor file of the mapping of graph brol.grf contained  in  file  brol.map.
       Vertices  with  no  mapping  information attached to them will be rendered in white, while
       distinct colors will be used to represent the different parts. Cut edges will be removed:

           $ gout '-oi{r}' brol.grf brol.xyz brol.map brol.iv
           $ ivview brol.iv

       Build an OpenInventor file of graph brol.grf without any vertex information associated  to
       it.  Mapping  data  are  not  required  and  will  not  be read, but a file name has to be
       provided, hence the ’-':

           $ gout -oi -mn brol.grf brol.xyz - brol.iv

       Output the pattern of matrix brol.grf on the form of a PostScript flat  drawing.  Geometry
       and  mapping  data  are  not  required  and  will  not  be read, but file names have to be
       provided, hence the two '-'s:

           $ gout -om -gn -mn brol.grf - - brol.ps

       Output a PostScript 2D drawing  of  a  rectangular  portion  graph  brol.grf,  with  disks
       representing mapping data:

           $ gout '-op{c,e,d,x=0.3,X=0.6,y=0.2,Y=0.5}' brol.grf brol.xyz brol.map brol.ps

SEE ALSO

       gmap(1), gout(1), gtst(1).

       Scotch user's manual.

AUTHOR

       Francois Pellegrini <francois.pellegrini@labri.fr>

                                         23 November 2019                                 gout(1)