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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 var twirl_angle = params.finger_twirl_distance / (ring_radius * 2 * Math.PI);
9 console.log(twirl_angle);
10 for (var finger_point = 0; finger_point <= params.finger_points; finger_point++) {
11 var angle = (finger_angle + twirl_angle * finger_point / params.finger_points) * 2 * Math.PI;
12 var x = ring_radius * Math.cos(angle);
13 var y = ring_radius * Math.sin(angle);
14 path.push([x, y, params.finger_height * finger_point / params.finger_points]);
15 }
16 return nt3d.extrude(path, finger_crosssection, [0, 0, 1], nt3d.pathnormals_from_point(path, [0, 0, 0]));
17 }
18 function medusa(params) {
19 var finger_crosssection = nt3d.circle(params.finger_radius, params.finger_faces);
20 var fingers = [];
21 for (var ring_num = 0; ring_num < params.num_rings; ring_num++) {
22 var ring_radius = params.first_ring_radius + ring_num * params.ring_spacing;
23 var num_fingers = Math.round((ring_radius * 2 * Math.PI) / params.finger_spacing);
24 for (var finger_num = 0; finger_num < num_fingers; finger_num++) {
25 var finger_angle = finger_num / num_fingers;
26 fingers = fingers.concat(finger(params, finger_crosssection, ring_radius, finger_angle));
27 }
28 }
29
30 return fingers;
31 }
32 var params = [["first_ring_radius", 20],
33 ["num_rings", 4],
34 ["ring_spacing", 10, "Space Between Rings"],
35 ["finger_spacing", 10],
36 ["finger_radius", 3],
37 ["finger_faces", 3],
38 ["finger_points", 20],
39 ["finger_twirl_distance", 50],
40 ["finger_height", 100]];
41 </script>
42 </head>
43 <body onload="nt3d.framework(medusa, params)">
44 <h1>Medusa</h1>
45 <p>An artsy thing.</p>
46 </body>
47 </html>