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

<screensaver name="polytopes" _label="Regular 4D Polytopes">

  <command arg="-root"/>

  <select id="display-mode">
    <option id="mesh" _label="Wireframe Mesh"
            arg-set="-mesh"/>
    <option id="surface" _label="Solid Surface"
            arg-set="-surface"/>
    <option id="transparent" _label="Transparent Surface"/>
  </select>

  <select id="polytope">
    <option id="random" _label="Random Object"/>
    <option id="cell-5" _label="5-Cell (Hyper-Tetrahedron)"
            arg-set="-5-cell"/>
    <option id="cell-8" _label="8-Cell (Hypercube / Tesseract)"
            arg-set="-8-cell"/>
    <option id="cell-16" _label="16-Cell (Hyper-Octahedron)"
            arg-set="-16-cell"/>
    <option id="cell-24" _label="24-Cell"
            arg-set="-24-cell"/>
    <option id="cell-120" _label="120-Cell"
            arg-set="-120-cell"/>
    <option id="cell-600" _label="600-Cell"
            arg-set="-600-cell"/>
  </select>

  <select id="colors">
    <option id="single" _label="Single Color"
            arg-set="-single-color"/>
    <option id="depth" _label="Colors By 4D Depth"/>
  </select>

  <select id="projection3d">
    <option id="perspective-3d" _label="Perspective 3d"/>
    <option id="orthographic-3d" _label="Orthographic 3d"
            arg-set="-orthographic-3d"/>
  </select>

  <select id="projection4d">
    <option id="perspective-4d" _label="Perspective 4d"/>
    <option id="orthographic-4d" _label="Orthographic 4d"
            arg-set="-orthographic-4d"/>
  </select>

  <hgroup>

    <vgroup>

      <number id="speed-wx" type="slider" arg="-speed-wx %"
              _label="WX Rotation Speed"
              _low-label="-4.0" _high-label="4.0"
              low="-4.0" high="4.0" default="1.1"/>

      <number id="speed-wy" type="slider" arg="-speed-wy %"
              _label="WY Rotation Speed"
              _low-label="-4.0" _high-label="4.0"
              low="-4.0" high="4.0" default="1.3"/>

      <number id="speed-wz" type="slider" arg="-speed-wz %"
              _label="WZ Rotation Speed"
              _low-label="-4.0" _high-label="4.0"
              low="-4.0" high="4.0" default="1.5"/>

    </vgroup>

    <vgroup>

      <number id="speed-xy" type="slider" arg="-speed-xy %"
              _label="XY Rotation Speed"
              _low-label="-4.0" _high-label="4.0"
              low="-4.0" high="4.0" default="1.7"/>
    
      <number id="speed-xz" type="slider" arg="-speed-xz %"
              _label="XZ Rotation Speed"
              _low-label="-4.0" _high-label="4.0"
              low="-4.0" high="4.0" default="1.9"/>
    
      <number id="speed-yz" type="slider" arg="-speed-yz %"
              _label="YZ Rotation Speed"
              _low-label="-4.0" _high-label="4.0"
              low="-4.0" high="4.0" default="2.1"/>
    
    </vgroup>

  </hgroup>

  <number id="delay" type="slider" arg="-delay %"
          _label="Display Speed" _low-label="Slow" _high-label="Fast"
          low="0" high="40000" default="25000"
          convert="invert"/>

  <boolean id="showfps" _label="Show Frames-per-Second" arg-set="-fps"/>

  <_description>
This program shows one of the six regular 4D polytopes rotating in 4D.
Written by Carsten Steger, inspired by H.S.M Coxeter's book "Regular
Polytopes", 3rd Edition, Dover Publications, Inc., 1973, and Thomas
Banchoff's book "Beyond the Third Dimension: Geometry, Computer
Graphics, and Higher Dimensions", Scientific American Library, 1990.
  </_description>
</screensaver>
