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<!DOCTYPE html>
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<html lang="zh">
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<head>
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<meta charset="utf-8" />
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<base href="../../../" />
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<script src="page.js"></script>
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<link type="text/css" rel="stylesheet" href="page.css" />
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</head>
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<body>
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[page:BufferGeometry] →
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<h1>形状缓冲几何体（[name]）</h1>
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<p class="desc">从一个或多个路径形状中创建一个单面多边形几何体。</p>
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<iframe id="scene" src="scenes/geometry-browser.html#ShapeGeometry"></iframe>
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<script>
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// iOS iframe auto-resize workaround
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if ( /(iPad|iPhone|iPod)/g.test( navigator.userAgent ) ) {
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const scene = document.getElementById( 'scene' );
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scene.style.width = getComputedStyle( scene ).width;
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scene.style.height = getComputedStyle( scene ).height;
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scene.setAttribute( 'scrolling', 'no' );
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}
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</script>
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<h2>代码示例</h2>
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<code>
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const x = 0, y = 0;
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const heartShape = new THREE.Shape();
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heartShape.moveTo( x + 5, y + 5 );
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heartShape.bezierCurveTo( x + 5, y + 5, x + 4, y, x, y );
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heartShape.bezierCurveTo( x - 6, y, x - 6, y + 7,x - 6, y + 7 );
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heartShape.bezierCurveTo( x - 6, y + 11, x - 3, y + 15.4, x + 5, y + 19 );
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heartShape.bezierCurveTo( x + 12, y + 15.4, x + 16, y + 11, x + 16, y + 7 );
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heartShape.bezierCurveTo( x + 16, y + 7, x + 16, y, x + 10, y );
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heartShape.bezierCurveTo( x + 7, y, x + 5, y + 5, x + 5, y + 5 );
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const geometry = new THREE.ShapeGeometry( heartShape );
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const material = new THREE.MeshBasicMaterial( { color: 0x00ff00 } );
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const mesh = new THREE.Mesh( geometry, material ) ;
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scene.add( mesh );
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</code>
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<h2>构造器</h2>
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<h3>[name]([param:Array shapes], [param:Integer curveSegments])</h3>
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<p>
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shapes — 一个单独的[page:Shape shape]，或者一个包含形状的[page:Array]。Default is a single triangle shape.<br />
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curveSegments - [page:Integer] - 每一个形状的分段数，默认值为12。
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</p>
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<h2>属性</h2>
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<p>共有属性请参见其基类[page:BufferGeometry]。</p>
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<h3>[property:Object parameters]</h3>
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<p>
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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。
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</p>
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<h2>方法(Methods)</h2>
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<p>共有方法请参见其基类[page:BufferGeometry]。</p>
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<h2>源代码</h2>
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<p>
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[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
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</p>
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</body>
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</html>
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