1 .TH XScreenSaver 1 "" "X Version 11"
3 flow - strange attractors.
6 [\-display \fIhost:display.screen\fP]
7 [\-visual \fIvisual\fP]
10 [\-count \fInumber\fP]
11 [\-cycles \fInumber\fP]
12 [\-periodic|\-no\-periodic]
13 [\-search|\-no\-search]
14 [\-rotate|\-no\-rotate]
18 [\-ncolors \fInumber\fP]
19 [\-delay \fInumber\fP]
22 Strange attractors formed of flows in a 3D differential equation phase
23 space. Features the popular attractors described by \fBLorentz\fP,
24 \fBRoessler\fP, \fBBirkhoff\fP and \fBDuffing\fP, and can discover
25 entirely new attractors by itself.
28 .B \-visual \fIvisual\fP
29 Specify which visual to use. Legal values are the name of a visual class,
30 or the id number (decimal or hex) of a specific visual.
33 Draw on a newly-created window. This is the default.
36 Draw on the root window.
38 .B \-count \fInumber\fP
39 Number of particles in the flow. Default: 3000
41 .B \-size \fInumber\fP
42 Length of particle trails. Negative values indicate
43 randomness. The computational load of a given flow depends on
44 (particle count) * (trail length). Default: -10
46 .B \-cycles \fInumber\fP
47 Timeout before changing objects. 0 - 800000. Default: 10000.
52 turn on/off periodic attractors. These are flows in 2 dependent
53 variables, with a periodic dependence on a third independent variable
54 (eg time). Flow will sometimes choose to start all the particles in
55 the same phase to illustrate the flow's cross-section. Default:
61 turn on/off search for new attractors. If this is enabled, a fraction
62 of the computing cycles is directed to searching a 60-dimensional
63 parameter space for new strange attractors. If periodic flows are
64 enabled, these can be searched too. Watch carefully - you are quite
65 likely to see mathematical objects that have never been seen before,
66 and since the parameters are not recorded, you'll probably never see
67 them again! Default: on
72 turn on/off rotating around attractor. Default: on
77 turn on/off ride in the flow. Default: on
79 If both -rotate and -ride are enabled the viewpoint will occasionally
80 fly between the two views.
85 turn on/off bounding box. Default: on
90 turn on/off double buffering. If Flow runs slowly in full screen, but
91 fast in a smaller window (eg on old graphics cards with too little
92 memory), try turning this option off. Default: on
94 .B \-ncolors \fInumber\fP
95 Number of Colors. Default: 200.
97 .B \-delay \fInumber\fP
98 Per-frame delay, in microseconds. Default: 10000 (0.01 seconds.).
101 Display the current frame rate and CPU load.
106 to get the default host and display number.
109 to get the name of a resource file that overrides the global resources
110 stored in the RESOURCE_MANAGER property.
115 Copyright (c) 1996 by Tim Auckland <Tim.Auckland@Procket.com>
116 Incorporating some code from Stephen Davies Copyright (c) 2000
118 Search code based on techniques described in "Strange Attractors:
119 Creating Patterns in Chaos" by Julien C. Sprott
121 Permission to use, copy, modify, and distribute this software and its
122 documentation for any purpose and without fee is hereby granted,
123 provided that the above copyright notice appear in all copies and that
124 both that copyright notice and this permission notice appear in
125 supporting documentation.
127 This file is provided AS IS with no warranties of any kind. The author
128 shall have no liability with respect to the infringement of copyrights,
129 trade secrets or any patents by this file or any part thereof. In no
130 event will the author be liable for any lost revenue or profits or
131 other special, indirect and consequential damages.
133 Adapted from swarm.c Copyright (c) 1991 by Patrick J. Naughton.
135 Adapted from xswarm by Jeff Butterworth. (butterwo@ncsc.org).