git.scottworley.com Git - nt3d/blob - medusa.html

   1 <html>
   2   <head>
   3     <title>Medusa</title>
   4     <script type="text/javascript" src="nt3d.js"></script>
   5     <script type="text/javascript">
   6       function medusa(base_ring_radius, num_fingers, finger_radius, finger_faces, finger_points, finger_twirl, finger_height) {
   7         var finger_crosssection = nt3d.circle(finger_radius, finger_faces);
   8         var fingers = [];
   9         for (var i = 0; i < num_fingers; i++) {
  10           var finger_angle = i / num_fingers;
  11           var path = [];
  12           for (var j = 0; j <= finger_points; j++) {
  13             var angle = (finger_angle + finger_twirl * j / finger_points) * 2 * Math.PI;
  14             var x = base_ring_radius * Math.cos(angle);
  15             var y = base_ring_radius * Math.sin(angle);
  16             path.push([x, y, finger_height * j / finger_points]);
  17           }
  18           var finger = nt3d.extrude(path, finger_crosssection, [0, 0, 1], nt3d.pathnormals_from_point(path, [0, 0, 0]));
  19           fingers = fingers.concat(finger);
  20         }
  21
  22         return fingers;
  23       }
  24       var params = [["Base ring radius", 100],
  25                     ["Number of fingers", 5],
  26                     ["Finger radius", 3],
  27                     ["Finger faces", 10],
  28                     ["Finger points", 20],
  29                     ["Finger twirl (in turns)", .1],
  30                     ["Finger height", 100]];
  31     </script>
  32   </head>
  33   <body onload="nt3d.framework(medusa, params)">
  34     <h1>Medusa</h1>
  35     <p>An artsy thing.</p>
  36   </body>
  37 </html>