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(first_ring_radius, num_rings, ring_spacing, 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 ring_num = 0; ring_num < num_rings; ring_num++) {
  10           var ring_radius = first_ring_radius + ring_num * ring_spacing;
  11           for (var finger_num = 0; finger_num < num_fingers; finger_num++) {
  12             var finger_angle = finger_num / num_fingers;
  13             var path = [];
  14             for (var finger_point = 0; finger_point <= finger_points; finger_point++) {
  15               var angle = (finger_angle + finger_twirl * finger_point / finger_points) * 2 * Math.PI;
  16               var x = ring_radius * Math.cos(angle);
  17               var y = ring_radius * Math.sin(angle);
  18               path.push([x, y, finger_height * finger_point / finger_points]);
  19             }
  20             var finger = nt3d.extrude(path, finger_crosssection, [0, 0, 1], nt3d.pathnormals_from_point(path, [0, 0, 0]));
  21             fingers = fingers.concat(finger);
  22           }
  23         }
  24
  25         return fingers;
  26       }
  27       var params = [["First ring radius", 20],
  28                     ["Number of rings", 10],
  29                     ["Space between rings", 10],
  30                     ["Number of fingers", 5],
  31                     ["Finger radius", 3],
  32                     ["Finger faces", 5],
  33                     ["Finger points", 20],
  34                     ["Finger twirl (in turns)", .1],
  35                     ["Finger height", 100]];
  36     </script>
  37   </head>
  38   <body onload="nt3d.framework(medusa, params)">
  39     <h1>Medusa</h1>
  40     <p>An artsy thing.</p>
  41   </body>
  42 </html>