[nt3d] / torus_by_extrude.html

<html>
  <head>
    <title>Torus by extrude</title>
    <script type="text/javascript" src="nt3d.js"></script>
    <script type="text/javascript">
      function torus_by_extrude(params) {
      	var path = nt3d.circle(params.torus_radius, params.long_steps);
      	path = nt3d.rotate_about_origin(path, [0,1,0], params.rotation * 2*Math.PI);
      	return nt3d.closed_extrude(
      	  path,
	  nt3d.circle(params.cross_section_radius, params.short_steps),
	  nt3d.shapenormals_from_closed_path(path),
	  [0, 0, 1]);
      }
      var params = [["torus_radius", 100],
                    ["cross_section_radius", 40],
                    ["rotation", 0.001, "Rotation (in turns)"],
                    ["long_steps", 50, "Steps around the long way"],
                    ["short_steps", 16, "Steps around the short way"]];
    </script>
  </head>
  <body onload="nt3d.framework(torus_by_extrude, params)">
    <h1>Torus by extrude</h1>
    <p>Make a torus by extruding a circle.</p>
  </body>
</html>
Commit	Line	Data
fc382d22 SW	1	<html>
	2	<head>
	3	<title>Torus by extrude</title>
	4	<script type="text/javascript" src="nt3d.js"></script>
	5	<script type="text/javascript">
3bafa9bd SW	6	function torus_by_extrude(params) {
	7	var path = nt3d.circle(params.torus_radius, params.long_steps);
	8	path = nt3d.rotate_about_origin(path, [0,1,0], params.rotation * 2*Math.PI);
08c25ec8 SW	9	return nt3d.closed_extrude(
08c25ec8 SW	10	path,
3bafa9bd	11	nt3d.circle(params.cross_section_radius, params.short_steps),
2d38f724	12	nt3d.shapenormals_from_closed_path(path),
08c25ec8	13	[0, 0, 1]);
fc382d22	14	}
3bafa9bd SW	15	var params = [["torus_radius", 100],
	16	["cross_section_radius", 40],
	17	["rotation", 0.001, "Rotation (in turns)"],
	18	["long_steps", 50, "Steps around the long way"],
	19	["short_steps", 16, "Steps around the short way"]];
fc382d22 SW	20	</script>
	21	</head>
	22	<body onload="nt3d.framework(torus_by_extrude, params)">
	23	<h1>Torus by extrude</h1>
	24	<p>Make a torus by extruding a circle.</p>
	25	</body>
	26	</html>