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- <!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>
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