1 <html><head><title>/home/edward/gitlive/roojs1/Roo/lib/Beizer.js</title><link rel="stylesheet" type="text/css" href="../../css/highlight-js.css"/></head><body class="highlightpage"><code class="jsdoc-pretty"><span class="jsdoc-comment">/*
2 * Portions of this file are based on pieces of Yahoo User Interface Library
3 * Copyright (c) 2007, Yahoo! Inc. All rights reserved.
4 * YUI licensed under the BSD License:
5 * http://developer.yahoo.net/yui/license.txt
6 * <script type="text/javascript">
9 </span><span class="jsdoc-var">Roo.lib.Bezier </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">new function</span><span class="jsdoc-syntax">() {
11 </span><span class="jsdoc-var">this.getPosition </span><span class="jsdoc-syntax">= </span><span class="jsdoc-keyword">function</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">points</span><span class="jsdoc-syntax">, </span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">) {
12 </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">n </span><span class="jsdoc-syntax">= </span><span class="jsdoc-var">points.length</span><span class="jsdoc-syntax">;
13 </span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">tmp </span><span class="jsdoc-syntax">= [];
15 </span><span class="jsdoc-keyword">for </span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">i </span><span class="jsdoc-syntax">= 0; </span><span class="jsdoc-var">i </span><span class="jsdoc-syntax">< </span><span class="jsdoc-var">n</span><span class="jsdoc-syntax">; ++</span><span class="jsdoc-var">i</span><span class="jsdoc-syntax">) {
16 </span><span class="jsdoc-var">tmp</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">i</span><span class="jsdoc-syntax">] = [</span><span class="jsdoc-var">points</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">i</span><span class="jsdoc-syntax">][0], </span><span class="jsdoc-var">points</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">i</span><span class="jsdoc-syntax">][1]];
19 </span><span class="jsdoc-keyword">for </span><span class="jsdoc-syntax">(</span><span class="jsdoc-keyword">var </span><span class="jsdoc-var">j </span><span class="jsdoc-syntax">= 1; </span><span class="jsdoc-var">j </span><span class="jsdoc-syntax">< </span><span class="jsdoc-var">n</span><span class="jsdoc-syntax">; ++</span><span class="jsdoc-var">j</span><span class="jsdoc-syntax">) {
20 </span><span class="jsdoc-keyword">for </span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">i </span><span class="jsdoc-syntax">= 0; </span><span class="jsdoc-var">i </span><span class="jsdoc-syntax">< </span><span class="jsdoc-var">n </span><span class="jsdoc-syntax">- </span><span class="jsdoc-var">j</span><span class="jsdoc-syntax">; ++</span><span class="jsdoc-var">i</span><span class="jsdoc-syntax">) {
21 </span><span class="jsdoc-var">tmp</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">i</span><span class="jsdoc-syntax">][0] = (1 - </span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">) * </span><span class="jsdoc-var">tmp</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">i</span><span class="jsdoc-syntax">][0] + </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">tmp</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">parseInt</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">i </span><span class="jsdoc-syntax">+ 1, 10)][0];
22 </span><span class="jsdoc-var">tmp</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">i</span><span class="jsdoc-syntax">][1] = (1 - </span><span class="jsdoc-var">t</span><span class="jsdoc-syntax">) * </span><span class="jsdoc-var">tmp</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">i</span><span class="jsdoc-syntax">][1] + </span><span class="jsdoc-var">t </span><span class="jsdoc-syntax">* </span><span class="jsdoc-var">tmp</span><span class="jsdoc-syntax">[</span><span class="jsdoc-var">parseInt</span><span class="jsdoc-syntax">(</span><span class="jsdoc-var">i </span><span class="jsdoc-syntax">+ 1, 10)][1];
26 </span><span class="jsdoc-keyword">return </span><span class="jsdoc-syntax">[ </span><span class="jsdoc-var">tmp</span><span class="jsdoc-syntax">[0][0], </span><span class="jsdoc-var">tmp</span><span class="jsdoc-syntax">[0][1] ];
29 };</span></code></body></html>