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<?xml version="1.0" encoding="ISO-8859-1"?>
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<screensaver name="hypertorus" _label="4D Hypertorus">
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<select id="display-mode">
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<option id="mesh" _label="Wireframe Mesh"
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<option id="surface" _label="Solid Surface"
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<option id="transparent" _label="Transparent Surface"
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arg-set="-transparent"/>
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<select id="appearance">
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<option id="solid" _label="Solid Object"
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<option id="bands" _label="See-Through Bands"
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<option id="twosided" _label="Two-Sided"
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<option id="colorwheel" _label="Color Wheel"
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arg-set="-colorwheel"/>
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<select id="projection3d">
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<option id="perspective-3d" _label="Perspective 3d"
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arg-set="-perspective-3d"/>
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<option id="orthographic-3d" _label="Orthographic 3d"
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arg-set="-orthographic-3d"/>
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<select id="projection4d">
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<option id="perspective-4d" _label="Perspective 4d"
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arg-set="-perspective-4d"/>
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<option id="orthographic-4d" _label="Orthographic 4d"
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arg-set="-orthographic-4d"/>
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<number id="speed-wx" type="slider" arg="-speed-wx %"
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_label="WX Rotation Speed"
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_low-label="-4.0" _high-label="4.0"
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low="-4.0" high="4.0" default="1.1"/>
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<number id="speed-wy" type="slider" arg="-speed-wy %"
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_label="WY Rotation Speed"
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_low-label="-4.0" _high-label="4.0"
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low="-4.0" high="4.0" default="1.3"/>
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<number id="speed-wz" type="slider" arg="-speed-wz %"
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_label="WZ Rotation Speed"
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_low-label="-4.0" _high-label="4.0"
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low="-4.0" high="4.0" default="1.5"/>
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<number id="speed-xy" type="slider" arg="-speed-xy %"
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_label="XY Rotation Speed"
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_low-label="-4.0" _high-label="4.0"
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low="-4.0" high="4.0" default="1.7"/>
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<number id="speed-xz" type="slider" arg="-speed-xz %"
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_label="XZ Rotation Speed"
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_low-label="-4.0" _high-label="4.0"
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low="-4.0" high="4.0" default="1.9"/>
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<number id="speed-yz" type="slider" arg="-speed-yz %"
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_label="YZ Rotation Speed"
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_low-label="-4.0" _high-label="4.0"
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low="-4.0" high="4.0" default="2.1"/>
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<number id="delay" type="slider" arg="-delay %"
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_label="Display Speed" _low-label="Slow" _high-label="Fast"
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low="0" high="40000" default="25000"
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<boolean id="showfps" _label="Show Frames-per-Second" arg-set="-fps"/>
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This program shows a rotating Clifford Torus: a torus lying on the
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"surface" of a 4D hypersphere. Written by Carsten Steger, inspired by
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Thomas Banchoff's book "Beyond the Third Dimension: Geometry, Computer
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Graphics, and Higher Dimensions", Scientific American Library, 1990.