+<html>
+ <head>
+ <title>Box by rotation</title>
+ <script type="text/javascript" src="nt3d.js"></script>
+ <script type="text/javascript">
+ function box_by_rotation(size_as_string) {
+ var size = parseFloat(size_as_string);
+ var origin = [0, 0, 0 ];
+ var x = [size, 0, 0 ];
+ var y = [0, size, 0 ];
+ var xy = [size, size, 0 ];
+ var xy_face = nt3d.quad(origin, y, xy, x);
+ return [].concat(
+ xy_face,
+ nt3d.rotate_about_origin(xy_face, nt3d.unit([1,1,1]), 2*Math.PI/3), // yz
+ nt3d.rotate_about_origin(xy_face, nt3d.unit([1,1,1]), -2*Math.PI/3), // xz
+ nt3d.rotate(xy_face, [0.5, 0, 0.5], [0, 1, 0], Math.PI), // far xy (top)
+ nt3d.rotate(xy_face, [1, 1, 0], nt3d.unit([-1, -1, 1]), 2*Math.PI/3), // far yz
+ nt3d.rotate(xy_face, [1, 1, 0], nt3d.unit([-1, -1, 1]), -2*Math.PI/3)); // far xz
+ }
+ var params = [["Size", 1]];
+ </script>
+ </head>
+ <body onload="nt3d.framework(box_by_rotation, params)">
+ <h1>Box by rotation</h1>
+ <p>Make a box by specifying one face, then copy-rotating it five times.</p>
+ </body>
+</html>
projects / nt3d / blobdiff