hilbert man page

hilbert — 3D Hilbert fractal.

Synopsis

hilbert [-display host:display.screen] [-visual visual] [-window] [-root] [-delay number] [-speed ratio] [-depth number] [-spin] [-wander] [-2d] [-3d] [-closed] [-open] [-max-depth number] [-thickness ratio] [-wireframe] [-fps]

Description

This draws the recursive Hilbert space-filling curve, in both 2D and 3D variants.  It incrementally animates the growth and recursion to the maximum depth, then unwinds it back.

The Hilbert path is a single contiguous line that can fill a volume without crossing itself.  As a data structure, Hilbert paths are useful because ordering along the curve preserves locality: points that close together along the curve are also close together in space. The converse is often, but not always, true.  The coloration reflects this.

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.

-delay number

Per-frame delay, in microseconds.  Default: 30000 (0.03 seconds.).

-speed number

How fast the animation should run. Less than 1 for slower, greater than 1 for faster.

-max-depth number

Max depth to descend.  Default: 5, which peaks at around half a million polygons.

-spin

-no-spin Whether to rotate the object.  Default: true.

-wander

-no-wander Whether to wander the object around on the screen.  Default: false;

-2d

-3d Whether to draw the 2D or 3D variant. Default: random.

-closed

-open Whether to draw the open or closed-path variant. Default: random.

-thickness ratio

How thick the lines should be.  Default: 0.25.

-wireframe

Render in wireframe instead of solid.

-fps

Display the current frame rate, CPU load, and polygon count.

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)

Author

Jamie Zawinski.

Info

5.37-6.fc27.1 (15-Aug-2017) X Version 11 XScreenSaver manual