Improve output: distinguish between failed assertions (failures) and unexpected exceptions (errors), and print a filtered stack trace for any exception.

webapp/web/src/math/points.js

@@ -0,0 +1,47 @@
+/*
+	Copyright (c) 2004-2006, The Dojo Foundation
+	All Rights Reserved.
+
+	Licensed under the Academic Free License version 2.1 or above OR the
+	modified BSD license. For more information on Dojo licensing, see:
+
+		http://dojotoolkit.org/community/licensing.shtml
+*/
+
+dojo.provide("dojo.math.points");
+dojo.require("dojo.math");
+
+// TODO: add a Point class?
+dojo.math.points = {
+	translate: function(a, b) {
+		if( a.length != b.length ) {
+			dojo.raise("dojo.math.translate: points not same size (a:[" + a + "], b:[" + b + "])");
+		}
+		var c = new Array(a.length);
+		for(var i = 0; i < a.length; i++) {
+			c[i] = a[i] + b[i];
+		}
+		return c;
+	},
+
+	midpoint: function(a, b) {
+		if( a.length != b.length ) {
+			dojo.raise("dojo.math.midpoint: points not same size (a:[" + a + "], b:[" + b + "])");
+		}
+		var c = new Array(a.length);
+		for(var i = 0; i < a.length; i++) {
+			c[i] = (a[i] + b[i]) / 2;
+		}
+		return c;
+	},
+
+	invert: function(a) {
+		var b = new Array(a.length);
+		for(var i = 0; i < a.length; i++) { b[i] = -a[i]; }
+		return b;
+	},
+
+	distance: function(a, b) {
+		return Math.sqrt(Math.pow(b[0]-a[0], 2) + Math.pow(b[1]-a[1], 2));
+	}
+};