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<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="utf-8" />
<base href="../../../" />
<script src="list.js"></script>
<script src="page.js"></script>
<link type="text/css" rel="stylesheet" href="page.css" />
</head>
<body>
[page:Object3D] → [page:Line] → [page:LineSegments] →
<h1>[name]</h1>
<p class="desc">
模拟3维包围盒 [page:Box3] 的辅助对象.
</p>
<h2>例子</h2>
<code>
var box = new THREE.Box3();
box.setFromCenterAndSize( new THREE.Vector3( 1, 1, 1 ), new THREE.Vector3( 2, 1, 3 ) );
var helper = new THREE.Box3Helper( box, 0xffff00 );
scene.add( helper );
</code>
<h2>构造函数</h2>
<h3>[name]( [param:Box3 box], [param:Color color] )</h3>
<p>
[page:Box3 box] -- 被模拟的3维包围盒.<br />
[page:Color color] -- (可选的) 线框盒子的颜色. 默认为 0xffff00.<br /><br />
创建一个新的线框盒子用以表示指定的3维包围盒.
</p>
<h2>属性</h2>
<p>请到基类 [page:LineSegments] 页面查看公共属性.</p>
<h3>[property:Box3 box]</h3>
<p>被模拟的3维包围盒.</p>
<h2>方法</h2>
<p>请到基类 [page:LineSegments] 页面查看公共方法.</p>
<h3>[method:void updateMatrixWorld]( [param:Boolean force] )</h3>
<p>
重写基类 [page:Object3D] 的该方法以便于
同时更新线框辅助对象与 [page:Box3Helper.box .box]
属性保持一致.
</p>
<h2>源码</h2>
<p>
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
</p>
</body>
</html>
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