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