points.js
资源名称:oa.rar [点击查看]
上传用户:kimgenplus
上传日期:2016-06-05
资源大小:20877k
文件大小:1k
源码类别:
OA系统
开发平台:
Java
- /*
- 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");
- 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));
- }};