ico(1X) 																   ico(1X)

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

       Display on the root window instead of creating a new window.  Specify a bit pattern for drawing dashed lines for wire frames.  Use inverted
       colors for wire frames.	Use double buffering on the display. This works for either wire frame or solid fill drawings. For solid fill draw-
       ings, 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.  Draw filled faces instead of wire frames.  Do not draw the	wire  frames.  Typically  used	only  when
       -faces  is  used.  Sleep n seconds between each move of the object.  Specify what object to draw. If no object is specified, an icosahedron
       is drawn.  Print out a list of the available objects, along with information about each object.	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 <poly-
       info.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)

																	   ico(1X)