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alexandre_ |
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/*
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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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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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