DISPLAY
to get the default host and display number.
flow6x
Strange attractors.
Usage
flow [--display
host:display.screen]
[--visual
visual]
[--window]
[--root]
[--window-id
number]
[--count
number]
[--cycles
number]
[{--periodic | --no-periodic}]
[{--search | --no-search}]
[{--rotate | --no-rotate}]
[{--ride | --no-ride}]
[{--box | --no-box}]
[{--dbuf | --no-dbuf}]
[--ncolors
number]
[--delay
number]
[--fps]
Overview
Strange attractors formed of flows in a 3D differential equation phase space. Features the popular attractors described by Lorentz, Roessler, Birkhoff and Duffing, and can discover entirely new attractors by itself.
Options
-
--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.
-
--window -
Draw on a newly-created window. This is the default.
-
--root -
Draw on the root window.
-
--window-id number -
Draw on the specified window.
-
--count number -
Number of particles in the flow. Default: 3000
-
--size number -
Length of particle trails. Negative values indicate randomness. The computational load of a given flow depends on (particle count) * (trail length). Default: -10
-
--cycles number -
Timeout before changing objects. 0 - 800000. Default: 10000.
-
--periodic
-
--no-periodic -
turn on/off periodic attractors. These are flows in 2 dependent variables, with a periodic dependence on a third independent variable (eg time). Flow will sometimes choose to start all the particles in the same phase to illustrate the flow's cross-section. Default: on
-
--search
-
--no-search -
turn on/off search for new attractors. If this is enabled, a fraction of the computing cycles is directed to searching a 60-dimensional parameter space for new strange attractors. If periodic flows are enabled, these can be searched too. Watch carefully - you are quite likely to see mathematical objects that have never been seen before, and since the parameters are not recorded, you'll probably never see them again! Default: on
-
--rotate
-
--no-rotate -
turn on/off rotating around attractor. Default: on
-
--ride
-
--no-ride -
turn on/off ride in the flow. Default: on
If both -rotate and -ride are enabled the viewpoint will occasionally fly between the two views.
-
--box
-
--no-box -
turn on/off bounding box. Default: on
-
--dbuf
-
--no-dbuf -
turn on/off double buffering. If Flow runs slowly in full screen, but fast in a smaller window (eg on old graphics cards with too little memory), try turning this option off. Default: on
-
--ncolors number -
Number of Colors. Default: 200.
-
--delay number -
Per-frame delay, in microseconds. Default: 10000 (0.01 seconds.).
-
--fps -
Display the current frame rate and CPU load.
Environment
-
XENVIRONMENT -
to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.
-
XSCREENSAVER_WINDOW -
The window ID to use with --root.
Releases
11 releases since Debian 3.1 (Sarge); the text changed 10 times.
--box since Debian 12 (Bookworm);
--count since Debian 12 (Bookworm);
--cycles since Debian 12 (Bookworm);
--dbuf since Debian 12 (Bookworm);
--delay since Debian 12 (Bookworm);
--fps since Debian 12 (Bookworm);
--ncolors since Debian 12 (Bookworm);
--no-box since Debian 12 (Bookworm);
--no-dbuf since Debian 12 (Bookworm);
--no-periodic since Debian 12 (Bookworm);
--no-ride since Debian 12 (Bookworm);
--no-rotate since Debian 12 (Bookworm);
--no-search since Debian 12 (Bookworm);
--periodic since Debian 12 (Bookworm);
--ride since Debian 12 (Bookworm);
--root since Debian 12 (Bookworm);
--rotate since Debian 12 (Bookworm);
--search since Debian 12 (Bookworm);
--size since Debian 12 (Bookworm);
--visual since Debian 12 (Bookworm);
--window since Debian 12 (Bookworm);
--window-id since Debian 12 (Bookworm).
-box until Debian 11 (Bullseye);
-count until Debian 11 (Bullseye);
-cycles until Debian 11 (Bullseye);
-dbuf until Debian 11 (Bullseye);
-delay until Debian 11 (Bullseye);
-fps until Debian 11 (Bullseye);
-ncolors until Debian 11 (Bullseye);
-no-box until Debian 11 (Bullseye);
-no-dbuf until Debian 11 (Bullseye);
-no-periodic until Debian 11 (Bullseye);
-no-ride until Debian 11 (Bullseye);
-no-rotate until Debian 11 (Bullseye);
-no-search until Debian 11 (Bullseye);
-periodic until Debian 11 (Bullseye);
-ride until Debian 11 (Bullseye);
-root until Debian 11 (Bullseye);
-rotate until Debian 11 (Bullseye);
-search until Debian 11 (Bullseye);
-size until Debian 11 (Bullseye);
-visual until Debian 11 (Bullseye);
-window until Debian 11 (Bullseye).