X-Git-Url: http://git.scottworley.com/nt3d/blobdiff_plain/2d38f7243be5d76cca2812428cc90d0009e672cb..c92a9d3f963401b999f661dde190a739ebbeafde:/nt3d.js

diff --git a/nt3d.js b/nt3d.js
index 9c4aeb1..fd57824 100644
--- a/nt3d.js
+++ b/nt3d.js
@@ -98,19 +98,19 @@ nt3d = {
 	},
 	extrude: function(path, shape, shapenormals, pathnormals) {
 
-		var guts_result = nt3d._extrude_guts(path, shape, shapenormals, pathnormals);
+		var guts_result = this._extrude_guts(path, shape, shapenormals, pathnormals);
 		// Add the end-caps
 		// XXX: This doesn't work if shape is not convex
 		return guts_result.points.concat(
-			nt3d.trianglefan(guts_result.first_loop.reverse()),
-			nt3d.trianglefan(guts_result.last_loop));
+			this.trianglefan(guts_result.first_loop.reverse()),
+			this.trianglefan(guts_result.last_loop));
 
 	},
 	closed_extrude: function(path, shape, shapenormals, pathnormals) {
-		var guts_result = nt3d._extrude_guts(path, shape, shapenormals, pathnormals);
+		var guts_result = this._extrude_guts(path, shape, shapenormals, pathnormals);
 		// Stitch the ends together
 		return guts_result.points.concat(
-			nt3d.closed_quadstrip(nt3d.zip(guts_result.first_loop, guts_result.last_loop)));
+			this.closed_quadstrip(this.zip(guts_result.first_loop, guts_result.last_loop)));
 	},
 	_extrude_guts: function(path, shape, shapenormals, pathnormals) {
 		var shape_fun = this.to_function(shape, false);
@@ -164,7 +164,7 @@ nt3d = {
 			if (i == 0) {
 				result.first_loop = loop;
 			} else {
-				result.points = result.points.concat(nt3d.closed_quadstrip(nt3d.zip(loop, prev_loop)));
+				result.points = result.points.concat(this.closed_quadstrip(this.zip(loop, prev_loop)));
 			}
 			prev_loop = loop;
 		}
@@ -211,7 +211,7 @@ nt3d = {
 	},
 	project: function(a, b) { // Project b onto a
 		var a_magnitude = this.magnitude(a);
-		return this.scale(a, this.dot(a, b) / a_magnitude * a_magnitude);
+		return this.scale(a, this.dot(a, b) / (a_magnitude * a_magnitude));
 	},
 	project_to_orthogonal: function(a, b) {
 		// The nearest thing to b that is orthogonal to a