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ico(1X)
X11R6
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]

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
      Do not 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 reused.

DESCRIPTION
  The ico command 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.

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.

BUGS
  The root window is not refreshed after ico -r exits; the last-displayed ico
  pattern remains.

  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 1988, X Consortium

  See X(1X) for a full statement of rights and permissions.

SEE ALSO
  X(1X)

Index for Section 1X

Alphabetical listing for I

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