animate an icosahedron or other polyhedron
[-display display] [-geometry geometry]
[-r] [-d pattern] [-i] [-dbl] [-faces] [-noedges]
[-sleep n] [-obj object] [-objhelp] [-colors color-list]
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.
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 drawings, using this switch results in substantially
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.
-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.
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
where XXX is something related to the name of the polyhedron.
The format of the include file is defined in the file
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.
A separate color cell is allocated for each name in the -colors
list, even when the same name may be specified twice.
© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003