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<!DOCTYPE html>
<html lang="en">
<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:BufferGeometry] →
<h1>圆环缓冲几何体（[name]）</h1>
<p class="desc">这是[page:TorusGeometry]中的[page:BufferGeometry]接口。</p>
<iframe id="scene" src="scenes/geometry-browser.html#TorusBufferGeometry"></iframe>
<script>
// iOS iframe auto-resize workaround
if ( /(iPad|iPhone|iPod)/g.test( navigator.userAgent ) ) {
var scene = document.getElementById( 'scene' );
scene.style.width = getComputedStyle( scene ).width;
scene.style.height = getComputedStyle( scene ).height;
scene.setAttribute( 'scrolling', 'no' );
}
</script>
<h2>示例</h2>
<code>var geometry = new THREE.TorusBufferGeometry( 10, 3, 16, 100 );
var material = new THREE.MeshBasicMaterial( { color: 0xffff00 } );
var torus = new THREE.Mesh( geometry, material );
scene.add( torus );
</code>
<h2>构造器</h2>
<h3>[name]([param:Float radius], [param:Float tube], [param:Integer radialSegments], [param:Integer tubularSegments], [param:Float arc])</h3>
<p>
radius - 圆环的半径，从圆环的中心到管道（横截面）的中心。默认值是1。<br />
tube — 管道的半径，默认值为0.4。<br />
radialSegments — 圆环的分段数，默认值为8。<br />
tubularSegments — 管道的分段数，默认值为6。<br />
arc — 圆环的圆心角（单位是弧度），默认值为Math.PI * 2。
</p>
<h2>属性</h2>
<p>共有属性请参见其基类[page:BufferGeometry]。</p>
<h3>.parameters</h3>
<p>
一个包含着构造函数中每个参数的对象。在对象实例化之后，对该属性的任何修改都不会改变这个几何体。
</p>
<h2>方法(Methods)</h2>
<p>共有方法请参见其基类[page:BufferGeometry]。</p>
<h2>源代码</h2>
[link:https://github.com/mrdoob/three.js/blob/master/src/geometries/TorusGeometry.js src/geometries/TorusGeometry.js]
</body>
</html>
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