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voronoi(6)		       XScreenSaver manual		      voronoi(6)

NAME
     voronoi - draws a randomly-colored Voronoi tessellation

SYNOPSIS
     voronoi   [--display   host:display.screen]  [--visual  visual]  [--window]
     [--root]	[--window-id   number]	 [--points   int]   [--point-size   int]
     [--point-speed   ratio]   [--point-delay	seconds]   [--zoom-speed  ratio]
     [--zoom-delay seconds] [--fps]

DESCRIPTION
     Draws a randomly-colored Voronoi tessellation, and  periodically  zooms  in
     and adds new points.  The existing points also wander around.

     There  are  a  set  of control points on the plane, each at the center of a
     colored cell.  Every pixel within that cell is closer to that  cell's  con-
     trol  point  than	to any other control point.  That is what determines the
     cell's shapes.

     When running in a window, you can click  to insert a new point at the mouse
     position.	Clicking on an existing point lets you drag it around.

     This implementation takes advantage of the OpenGL depth buffer  to  compute
     the  cells for us, by rendering the intersection of overlapping cones in an
     orthographic plane.

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.

     --points int
	     How many points to add each time we zoom in.

     --point-size int
	     How big to draw the stars, in pixels.  0 for no stars.

     --point-speed ratio
	     How fast the points should wander.  Less than 1 for slower, greater
	     than 1 for faster.

     --point-delay seconds
	     How quickly to insert new points, when adding.

     --zoom-speed ratio
	     How fast to zoom in.  Less than 1 for slower, greater  than  1  for
	     faster.

     --zoom-delay seconds
	     Zoom in every this-many seconds.

     --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 re-
	     sources stored in the RESOURCE_MANAGER property.

     XSCREENSAVER_WINDOW
	     The window ID to use with --root.

SEE ALSO
     X(1), xscreensaver(1)

COPYRIGHT
     Copyright (C) 2007 by Jamie Zawinski.  Permission	to  use,  copy,  modify,
     distribute, and sell this software and its documentation for any purpose is
     hereby granted without fee, provided that the above copyright notice appear
     in  all  copies and that both that copyright notice and this permission no-
     tice appear in supporting documentation.  No representations are made about
     the suitability of this software for any purpose.	It is provided	"as  is"
     without express or implied warranty.

AUTHOR
     Jamie Zawinski.

X Version 11		       6.15 (30-Mar-2026)		      voronoi(6)

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