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 ICO(1)                         X Version 11                          ICO(1)
                                  Release 6



 NAME
      ico - animate an icosahedron or other polyhedron

 SYNOPSIS
      ico [-display display] [-geometry geometry] [-r] [-d pattern] [-i] [-
      dbl] [-faces] [-noedges] [-sleep n] [-obj object] [-objhelp] [-colors
      color-list]

 DESCRIPTION
      Ico displays a wire-frame rotating polyhedron, with hidden lines
      removed, or a solid-fill polyhedron with hidden faces removed.  There
      are a number of different polyhedra available; adding a new polyhedron
      to the program is quite simple.

 OPTIONS
      -r   Display on the root window instead of creating a new window.

      -d pattern
           Specify a bit pattern for drawing dashed lines for wire frames.

      -i   Use inverted colors for wire frames.

      -dbl Use double buffering on the display.  This works for either wire
           frame or solid fill drawings.  For solid fill drawings, using
           this switch results in substantially smoother movement.  Note
           that this requires twice as many bit planes as without double
           buffering.  Since some colors are typically allocated by other
           programs, most eight-bit-plane displays will probably be limited
           to eight colors when using double buffering.

      -faces
           Draw filled faces instead of wire frames.

      -noedges
           Don't draw the wire frames.  Typically used only when -faces is
           used.

      -sleep n
           Sleep n seconds between each move of the object.

      -obj object
           Specify what object to draw.  If no object is specified, an
           icosahedron is drawn.

      -objhelp
           Print out a list of the available objects, along with information
           about each object.

      -colors color color ...
           Specify what colors should be used to draw the filled faces of
           the object.  If less colors than faces are given, the colors are



                                    - 1 -          Formatted:  June 30, 2022






 ICO(1)                         X Version 11                          ICO(1)
                                  Release 6



           reused.

 ADDING POLYHEDRA
      If you have the source to ico, it is very easy to add more polyhedra.
      Each polyhedron is defined in an include file by the name of objXXX.h,
      where XXX is something related to the name of the polyhedron.  The
      format of the include file is defined in the file polyinfo.h.  Look at
      the file objcube.h to see what the exact format of an objXXX.h file
      should be, then create your objXXX.h file in that format.  After
      making the new objXXX.h file (or copying in a new one from elsewhere),
      simply do a 'make depend'.  This will recreate the file allobjs.h,
      which lists all of the objXXX.h files.  Doing a 'make' after this will
      rebuild ico with the new object information.

 SEE ALSO
      X(1)

 BUGS
      Pyramids and tetrahedrons with filled faces do not display correctly.
      A separate color cell is allocated for each name in the -colors list,
      even when the same name may be specified twice.

 COPYRIGHT
      Copyright ([
                  ,*) X Consortium
      See X(1) for a full statement of rights and permissions.




























                                    - 2 -          Formatted:  June 30, 2022