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Diffstat (limited to 'hacks/config/quasicrystal.xml')
-rw-r--r-- | hacks/config/quasicrystal.xml | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/hacks/config/quasicrystal.xml b/hacks/config/quasicrystal.xml new file mode 100644 index 0000000..0823c89 --- /dev/null +++ b/hacks/config/quasicrystal.xml @@ -0,0 +1,56 @@ +<?xml version="1.0" encoding="ISO-8859-1"?> + +<screensaver name="quasicrystal" _label="QuasiCrystal" gl="yes"> + + <command arg="-root"/> + + <video href="https://www.youtube.com/watch?v=JsGf65d5TfM"/> + + <hgroup> + <vgroup> + <number id="delay" type="slider" arg="-delay %" + _label="Frame rate" _low-label="Low" _high-label="High" + low="0" high="100000" default="30000" + convert="invert"/> + + <number id="speed" type="slider" arg="-speed %" + _label="Speed" _low-label="Slow" _high-label="Fast" + low="0.1" high="5.0" default="1.0"/> + </vgroup> + <vgroup> + <number id="count" type="slider" arg="-count %" + _label="Density" _low-label="Low" _high-label="High" + low="7" high="37" default="17" + convert="invert"/> + + <number id="contrast" type="slider" arg="-contrast %" + _label="Contrast" _low-label="Low" _high-label="High" + low="0" high="100" default="30"/> + </vgroup> + </hgroup> + + <hgroup> + <boolean id="wander" _label="Displacement" arg-unset="-no-wander"/> + <boolean id="spin" _label="Rotation" arg-unset="-no-spin"/> + <boolean id="symmetric" _label="Symmetry" arg-unset="-no-symmetry"/> + <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/> + </hgroup> + + <xscreensaver-updater /> + + <_description> +A quasicrystal is a structure that is ordered but aperiodic. +Two-dimensional quasicrystals can be generated by adding a set of +planes where x is the sine of y. Different complex aperiodic plane +tilings are produced depending on the period, position, and rotation +of the component planes, and whether the rotation of the planes is +evenly distributed around the circle (the "symmetry" option, above) +or random. + +See also the "RD-Bomb", "CWaves" and "Penrose" screen savers. + +https://en.wikipedia.org/wiki/Quasicrystal + +Written by Jamie Zawinski; 2013. + </_description> +</screensaver> |