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1 <html>
2 <head>
3 <title>Medusa</title>
4 <script type="text/javascript" src="nt3d.js"></script>
5 <script type="text/javascript">
6 function finger(params, finger_crosssection, ring_radius, finger_angle) {
7 var path = [];
8 for (var finger_point = 0; finger_point <= params.finger_points; finger_point++) {
9 var angle = (finger_angle + params.finger_twirl * finger_point / params.finger_points) * 2 * Math.PI;
10 var x = ring_radius * Math.cos(angle);
11 var y = ring_radius * Math.sin(angle);
12 path.push([x, y, params.finger_height * finger_point / params.finger_points]);
13 }
14 return nt3d.extrude(path, finger_crosssection, [0, 0, 1], nt3d.pathnormals_from_point(path, [0, 0, 0]));
15 }
16 function medusa(params) {
17 var finger_crosssection = nt3d.circle(params.finger_radius, params.finger_faces);
18 var fingers = [];
19 for (var ring_num = 0; ring_num < params.num_rings; ring_num++) {
20 var ring_radius = params.first_ring_radius + ring_num * params.ring_spacing;
21 for (var finger_num = 0; finger_num < params.num_fingers; finger_num++) {
22 var finger_angle = finger_num / params.num_fingers;
23 fingers = fingers.concat(finger(params, finger_crosssection, ring_radius, finger_angle));
24 }
25 }
26
27 return fingers;
28 }
29 var params = [["first_ring_radius", 20],
30 ["num_rings", 10],
31 ["ring_spacing", 10, "Space Between Rings"],
32 ["num_fingers", 5],
33 ["finger_radius", 3],
34 ["finger_faces", 5],
35 ["finger_points", 20],
36 ["finger_twirl", .1, "Finger Twirl (in turns)"],
37 ["finger_height", 100]];
38 </script>
39 </head>
40 <body onload="nt3d.framework(medusa, params)">
41 <h1>Medusa</h1>
42 <p>An artsy thing.</p>
43 </body>
44 </html>