X-Git-Url: http://git.scottworley.com/nt3d/blobdiff_plain/08c25ec8473e43e82a1291a528f8332239581483..911d073bae58f93ab72a7afa242a0a478299b8e9:/torus_by_extrude.html

diff --git a/torus_by_extrude.html b/torus_by_extrude.html
index c95f821..10ae92e 100644
--- a/torus_by_extrude.html
+++ b/torus_by_extrude.html
@@ -3,16 +3,18 @@
     <title>Torus by extrude</title>
     <script type="text/javascript" src="nt3d.js"></script>
     <script type="text/javascript">
-      function torus_by_extrude(torus_radius, cross_section_radius, long_steps, short_steps) {
+      function torus_by_extrude(torus_radius, cross_section_radius, rotation, long_steps, short_steps) {
       	var path = nt3d.circle(torus_radius, long_steps);
+      	path = nt3d.rotate_about_origin(path, [0,1,0], rotation * 2*Math.PI);
       	return nt3d.closed_extrude(
       	  path,
 	  nt3d.circle(cross_section_radius, short_steps),
-      	  nt3d.rotate_about_origin(path, [0,0,1], Math.PI/2),
+	  nt3d.shapenormals_from_closed_path(path),
 	  [0, 0, 1]);
       }
       var params = [["Torus radus", 100],
                     ["Cross section radius", 40],
+                    ["Rotation (turns)", 0.001],
                     ["Steps around the long way", 50],
                     ["Steps around the short way", 16]];
     </script>