File: SphereBufferGeometry.html

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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] &rarr;

		<h1>球缓冲几何体([name])</h1>

		<p class="desc">这是[page:SphereGeometry]中的[page:BufferGeometry]接口。</p>

		<iframe id="scene" src="scenes/geometry-browser.html#SphereBufferGeometry"></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.SphereBufferGeometry( 5, 32, 32 );
		var material = new THREE.MeshBasicMaterial( {color: 0xffff00} );
		var sphere = new THREE.Mesh( geometry, material );
		scene.add( sphere );
		</code>

		<h2>构造器</h2>

		<h3>[name]([param:Float radius], [param:Integer widthSegments], [param:Integer heightSegments], [param:Float phiStart], [param:Float phiLength], [param:Float thetaStart], [param:Float thetaLength])</h3>

		<p>
			radius — 球体半径,默认为1。<br />
			widthSegments — 水平分段数(沿着经线分段),最小值为3,默认值为8。<br />
			heightSegments — 垂直分段数(沿着纬线分段),最小值为2,默认值为6。<br />
			phiStart — 指定水平(经线)起始角度,默认值为0。。<br />
			phiLength — 指定水平(经线)扫描角度的大小,默认值为 Math.PI * 2。<br />
			thetaStart — 指定垂直(纬线)起始角度,默认值为0。<br />
			thetaLength — 指定垂直(纬线)扫描角度大小,默认值为 Math.PI。<br />
		</p>

		<p>
			该几何体是通过扫描并计算围绕着Y轴(水平扫描)和X轴(垂直扫描)的顶点来创建的。
			因此,不完整的球体(类似<em>球形切片</em>)可以通过为phiStart,phiLength,thetaStart和thetaLength设置不同的值来创建,
			以定义我们开始(或结束)计算这些顶点的起点(或终点)。
		</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/SphereGeometry.js src/geometries/SphereGeometry.js]
	</body>
</html>