You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
78 lines
2.4 KiB
78 lines
2.4 KiB
2 years ago
|
<!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>
|