voronoi man page on aLinux

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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]	[-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
       control 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  com‐
       pute  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.

       -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
	       resources stored in the RESOURCE_MANAGER property.

SEE ALSO
       X(1), xscreensaver(1)

COPYRIGHT
       Copyright  ©  2007 by Jamie Zawinski.  Permission to use, copy, modify,
       distribute, and sell this software and its documentation for  any  pur‐
       pose  is	 hereby granted without fee, provided that the above copyright
       notice appear in all copies and that both  that	copyright  notice  and
       this  permission	 notice appear in supporting documentation.  No repre‐
       sentations are made about the suitability of this software for any pur‐
       pose.  It is provided "as is" without express or implied warranty.

AUTHOR
       Jamie Zawinski.

X Version 11		      5.07 (10-Aug-2008)		    voronoi(6)
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