<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="utf-8" />
<base href="../../../../" />
<script src="page.js"></script>
<link type="text/css" rel="stylesheet" href="page.css" />
</head>
<body>
[page:Curve] →
<h1>二维二次贝塞尔曲线（[name]）</h1>
<p class="desc">
创建一条平滑的二维
<a href="http://en.wikipedia.org/wiki/B%C3%A9zier_curve#mediaviewer/File:B%C3%A9zier_2_big.gif" target="_blank">二次贝塞尔曲线</a>，
由起点、终点和一个控制点所定义。
</p>
<h2>代码示例</h2>
<code>
const curve = new THREE.QuadraticBezierCurve(
new THREE.Vector2( -10, 0 ),
new THREE.Vector2( 20, 15 ),
new THREE.Vector2( 10, 0 )
);
const points = curve.getPoints( 50 );
const geometry = new THREE.BufferGeometry().setFromPoints( points );
const material = new THREE.LineBasicMaterial( { color: 0xff0000 } );
//Create the final object to add to the scene
const curveObject = new THREE.Line( geometry, material );
</code>
<h2>构造函数</h2>
<h3>[name]( [param:Vector2 v0], [param:Vector2 v1], [param:Vector2 v2] )</h3>
<p>
[page:Vector2 v0] – 起点<br/>
[page:Vector2 v1] – 中间的控制点<br/>
[page:Vector2 v2] – 终点<br/>
</p>
<h2>属性</h2>
<p>共有属性请参见其基类[page:Curve]。</p>
<h3>[property:Vector2 v0]</h3>
<p>起点</p>
<h3>[property:Vector2 v1]</h3>
<p>控制点</p>
<h3>[property:Vector2 v2]</h3>
<p>终点</p>
<h2>方法</h2>
<p>共有方法请参见其基类[page:Curve]。</p>
<h2>源代码</h2>
<p>
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
</p>
</body>
</html>