whirlygig man page on Peanut
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whirlygig(6) XScreenSaver manual whirlygig(6)
NAME
whirlygig -- zooming chains of sinusoidal spots
SYNOPSIS
whirlygig [-display host:display.screen] [-window] [-root] [-mono]
[-install] [-noinstall] [-visual arg] [-window-id arg] [-xspeed arg]
[-yspeed arg] [-whirlies arg] [-nlines arg] [-xmode arg] [-ymode arg]
[-speed arg] [-trail 1|0] [-color_modifier arg] [-start_time arg]
[-explain 1|0] [-wrap 1|0] [-db] [-no-db]
[-fps]
DESCRIPTION
The whirlygig program draws a series of circles on your screen. They
then move about in a cyclic pattern
OPTIONS
whirlygig accepts the following options:
-window Draw on a newly-created window. This is the default.
-root Draw on the root window.
-visual visual
Specify which visual to use. Legal values are the name of a
visual class, or the id number (decimal or hex) of a specific
visual.
-xspeed speed
Specify how fast the dots should cycle horizontally. Try out
values from .01 to 4000. Defaults to 1.0.
-yspeed speed
Specify how fast the dots should cycle vertically. Try out
values from .01 to 4000. Defaults to 1.0.
-xamplitude factor
Specify the horizontal amplitude. Try out values from .01 to
10. Defaults to 1.0.
-yamplitude factor
Specify the horizontal amplitude. Try out values from .01 to
10. Defaults to 1.0.
-whirlies a number
Specify how many whirlies you want (per line). Defaults to a
random number.
-nlines number of lines
Specify how many lines of whirlies you want. Defaults to a ran‐
dom number.
-xmode mode
-ymode mode
Specify which mode to use for calculating the x and y positions
of the whirlies. Can be any of spin, funky, circle, linear,
test, fun, innie or lissajous. Defaults to 'change' mode, which
randomly selects a new mode for x and y every now an then.
Unrecognized options default to spin.
-explain
Prints some strings to the window explaining what the initially
selected modes are, before displaying the whirlies. Off by
default.
-trail 1 or 0
Trail mode fails to erase the whirlies as they move, so they
leave a multicoloured trail behind. Doesn't work if the doubled
buffered mode is using the X server's double buffer extension,
and the useDBEclear resource is true (which it is by default).
-speed int
Specifies how fast to cycle through the internal time. Values
1,2 and 3 look ok, up to 10 is not too bad, but beyond ends up
flickery. Adjust xspeed and yspeed instead.
-start_time int
Where in the internal time cycle to start. Ranges from 1 to
429496729, Defaults to a random value.
-xoffset factor
Tell the whirlies to be offset by this factor of a sin.
Defaults to 1.0
-yoffset factor
Tell the whirlies to be offset by this factor of a cos.
Defaults to 1.0
-offset_period factor
Change the period of an offset cycle Defaults to 1
-color_modifier int
How many colors away from the current should the next whirly
be?
-wrap 1|0
Causes whirlies that fall off the edge of the screen to wrap
over to the other end of the screen. Otherwise they disappear
and new ones to materialize on the other side of the screen.
The difference is subtle, but it is different. Try it. On by
default.
-db
-no-db Use double buffering to reduce flicker. This uses the double
buffering extension if your X server supports it, otherwise it
draws to it's own pixmap buffer and copies that to the window,
which works almost as well. If the resource 'useDBEClear' is
true, whirlies are not individually erased, so the -trail
option won't work, and running multiple instances on the root
window will flicker.
-fps Display the current frame rate and CPU load.
ENVIRONMENT
DISPLAY to get the default host and display number.
XENVIRONMENT
to get the name of a resource file that overrides the global
resources stored in the RESOURCE_MANAGER property.
SEE ALSO
X(1), xscreensaver(1)
COPYRIGHT
Copyright © 2001 by Ashton Trey Belew. Permission to use, copy, mod‐
ify, distribute, and sell this software and its documentation for any
purpose is hereby granted without fee, provided that the above copy‐
right notice appear in all copies and that both that copyright notice
and this permission notice appear in supporting documentation. No rep‐
resentations are made about the suitability of this software for any
purpose. It is provided "as is" without express or implied warranty.
AUTHOR
Ashton Trey Belew <trey@veggie.wesleyan.edu>, 31-Mar-01
X Version 11 5.07 (10-Aug-2008) whirlygig(6)
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