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<?xml version="1.0" encoding="ISO-8859-1"?>

<screensaver name="halftone" _label="Halftone">

  <command arg="-root"/>

  <video href="https://www.youtube.com/watch?v=K2lqgBPde4o"/>

  <hgroup>
   <vgroup>
    <number id="delay" type="slider" arg="-delay %"
            _label="Frame rate" _low-label="Low" _high-label="High"
            low="0" high="100000" default="10000" convert="invert"/>

    <number id="count" type="slider" arg="-count %"
             _label="Gravity points" _low-label="Few" _high-label="Many"
            low="1" high="50" default="10"/>

    <number id="size" type="slider" arg="-spacing %"
             _label="Dot size" _low-label="Small" _high-label="Big"
            low="2" high="50" default="14"/>

    <number id="dotfill" type="slider" arg="-sizefactor %"
             _label="Dot fill factor" _low-label="Small" _high-label="Large"
            low="0.1" high="3" default="1.5"/>
   </vgroup>
   <vgroup>
    <number id="minspeed" type="slider" arg="-minspeed %"
             _label="Minimum speed" _low-label="Low" _high-label="High"
            low="0.001" high="0.09" default="0.001"/>

    <number id="maxspeed" type="slider" arg="-maxspeed %"
             _label="Maximum speed" _low-label="Low" _high-label="High"
            low="0.001" high="0.09" default="0.02"/>

    <number id="minmass" type="slider" arg="-minmass %"
             _label="Minimum mass" _low-label="Small" _high-label="Large"
            low="0.001" high="0.09" default="0.001"/>

    <number id="maxmass" type="slider" arg="-maxmass %"
             _label="Maximum mass" _low-label="Small" _high-label="Large"
            low="0.001" high="0.09" default="0.02"/>
   </vgroup>
  </hgroup>

  <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>

  <xscreensaver-updater />

  <_description>
A halftone dot pattern in motion.

Draws the gravity force in each point on the screen seen through a
halftone dot pattern. The gravity force is calculated from a set of
moving mass points. View it from a distance for best effect.

https://en.wikipedia.org/wiki/Halftone

Written by Peter Jaric; 2002.
  </_description>
</screensaver>