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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:BufferGeometry] →
- <h1>车削缓冲几何体([name])</h1>
- <p class="desc">创建具有轴对称性的网格,比如花瓶。车削绕着Y轴来进行旋转。</p>
- <iframe id="scene" src="scenes/geometry-browser.html#LatheGeometry"></iframe>
- <script>
- // iOS iframe auto-resize workaround
- if ( /(iPad|iPhone|iPod)/g.test( navigator.userAgent ) ) {
- const scene = document.getElementById( 'scene' );
- scene.style.width = getComputedStyle( scene ).width;
- scene.style.height = getComputedStyle( scene ).height;
- scene.setAttribute( 'scrolling', 'no' );
- }
- </script>
- <h2>代码示例</h2>
- <code>
- const points = [];
- for ( let i = 0; i < 10; i ++ ) {
- points.push( new THREE.Vector2( Math.sin( i * 0.2 ) * 10 + 5, ( i - 5 ) * 2 ) );
- }
- const geometry = new THREE.LatheGeometry( points );
- const material = new THREE.MeshBasicMaterial( { color: 0xffff00 } );
- const lathe = new THREE.Mesh( geometry, material );
- scene.add( lathe );
- </code>
- <h2>构造器</h2>
- <h3>[name]([param:Array points], [param:Integer segments], [param:Float phiStart], [param:Float phiLength])</h3>
- <p>
- points — 一个Vector2对象数组。每个点的X坐标必须大于0。 Default is an array with (0,-0.5), (0.5,0) and (0,0.5) which creates a simple diamond shape.<br />
- segments — 要生成的车削几何体圆周分段的数量,默认值是12。<br />
- phiStart — 以弧度表示的起始角度,默认值为0。<br />
- phiLength — 车削部分的弧度(0-2PI)范围,2PI将是一个完全闭合的、完整的车削几何体,小于2PI是部分的车削。默认值是2PI。
- </p>
- <p>
- 基于参数创建一个LatheGeometry。
- </p>
- <h2>属性</h2>
- <p>共有属性请参见其基类[page:BufferGeometry]。</p>
- <h3>[property:Object 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>
- <p>
- [link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
- </p>
- </body>
- </html>
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