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1318 alexandre_ 1 
/*
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	Copyright (c) 2004-2006, The Dojo Foundation
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	All Rights Reserved.
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	Licensed under the Academic Free License version 2.1 or above OR the
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	modified BSD license. For more information on Dojo licensing, see:
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		http://dojotoolkit.org/community/licensing.shtml
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*/
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1422 alexandre_ 11 
 
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1318 alexandre_ 13 
dojo.provide("dojo.math.points");
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dojo.require("dojo.math");
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dojo.math.points = {translate:function (a, b) {
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	if (a.length != b.length) {
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		dojo.raise("dojo.math.translate: points not same size (a:[" + a + "], b:[" + b + "])");
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	}
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	var c = new Array(a.length);
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	for (var i = 0; i < a.length; i++) {
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		c[i] = a[i] + b[i];
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	}
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	return c;
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}, midpoint:function (a, b) {
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	if (a.length != b.length) {
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		dojo.raise("dojo.math.midpoint: points not same size (a:[" + a + "], b:[" + b + "])");
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	}
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	var c = new Array(a.length);
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	for (var i = 0; i < a.length; i++) {
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		c[i] = (a[i] + b[i]) / 2;
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	}
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	return c;
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}, invert:function (a) {
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	var b = new Array(a.length);
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	for (var i = 0; i < a.length; i++) {
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		b[i] = -a[i];
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	}
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	return b;
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}, distance:function (a, b) {
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	return Math.sqrt(Math.pow(b[0] - a[0], 2) + Math.pow(b[1] - a[1], 2));
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}};
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