git.hungrycats.org Git - xscreensaver/blob - hacks/config/penrose.xml

   1 <?xml version="1.0" encoding="ISO-8859-1"?>
   2
   3 <screensaver name="penrose" _label="Penrose">
   4
   5   <command arg="-root"/>
   6
   7    <hgroup>
   8     <vgroup>
   9      <number id="delay" type="slider" arg="-delay %"
  10              _label="Frame rate" _low-label="Low" _high-label="High"
  11              low="0" high="100000" default="10000"
  12              convert="invert"/>
  13
  14      <number id="ncolors" type="slider" arg="-ncolors %"
  15                _label="Number of colors" _low-label="Two" _high-label="Many"
  16                low="1" high="255" default="64"/>
  17     </vgroup>
  18     <vgroup>
  19      <number id="size" type="slider" arg="-size %"
  20               _label="Tile size" _low-label="Small" _high-label="Large"
  21               low="1" high="100" default="40"/>
  22
  23      <boolean id="ammann" _label="Draw ammann lines" arg-set="-ammann"/>
  24      <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
  25     </vgroup>
  26    </hgroup>
  27
  28
  29   <_description>
  30 Draws quasiperiodic tilings; think of the implications on modern
  31 formica technology.
  32
  33 In April 1997, Sir Roger Penrose, a British math professor who has
  34 worked with Stephen Hawking on such topics as relativity, black
  35 holes, and whether time has a beginning, filed a
  36 copyright-infringement lawsuit against the Kimberly-Clark
  37 Corporation, which Penrose said copied a pattern he created (a
  38 pattern demonstrating that "a nonrepeating pattern could exist in
  39 nature") for its Kleenex quilted toilet paper.  Penrose said he
  40 doesn't like litigation but, "When it comes to the population of
  41 Great Britain being invited by a multinational to wipe their bottoms
  42 on what appears to be the work of a Knight of the Realm, then a last
  43 stand must be taken."
  44
  45 As reported by News of the Weird #491, 4-Jul-1997.
  46
  47 http://en.wikipedia.org/wiki/Penrose_tiling
  48 http://en.wikipedia.org/wiki/Tessellation
  49
  50 Written by Timo Korvola; 1997.
  51   </_description>
  52 </screensaver>