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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">
用于模拟平面 [page:Plane] 的辅助对象.
</p>
<h2>例子</h2>
<code>
var plane = new THREE.Plane( new THREE.Vector3( 1, 1, 0.2 ), 3 );
var helper = new THREE.PlaneHelper( plane, 1, 0xffff00 );
scene.add( helper );
</code>
<h2>构造函数</h2>
<h3>[name]( [param:Plane plane], [param:Float size], [param:Color hex] )</h3>
<p>
[page:Plane plane] -- 被模拟的平面.<br />
[page:Float size] -- (可选的) 辅助对象的单边长度. 默认为 1.<br />
[page:Color color] -- (可选的) 辅助对象的颜色. 默认为 0xffff00.<br /><br />
创建一个线框辅助对象来表示指定平面.
</p>
<h2>属性</h2>
<p>请到基类 [page:LineSegments] 页面查看公共属性.</p>
<h3>[property:Plane plane]</h3>
<p>被模拟的平面 [page:Plane plane] .</p>
<h3>[property:Float size]</h3>
<p>辅助对象的单边长度.</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:PlaneHelper.plane .plane] 和
[page:PlaneHelper.size .size] 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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