flow6

Usage

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

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.

XSCREENSAVER_WINDOW

The window ID to use with --root.