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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:Curve] → [page:CurvePath] → [page:Path] →
- <h1>形状([name])</h1>
- <p class="desc">
- 使用路径以及可选的孔洞来定义一个二维形状平面。
- 它可以和[page:ExtrudeGeometry]、[page:ShapeGeometry]一起使用,获取点,或者获取三角面。
- </p>
- <h2>代码示例</h2>
- <code>
- const heartShape = new THREE.Shape();
- heartShape.moveTo( 25, 25 );
- heartShape.bezierCurveTo( 25, 25, 20, 0, 0, 0 );
- heartShape.bezierCurveTo( - 30, 0, - 30, 35, - 30, 35 );
- heartShape.bezierCurveTo( - 30, 55, - 10, 77, 25, 95 );
- heartShape.bezierCurveTo( 60, 77, 80, 55, 80, 35 );
- heartShape.bezierCurveTo( 80, 35, 80, 0, 50, 0 );
- heartShape.bezierCurveTo( 35, 0, 25, 25, 25, 25 );
- const extrudeSettings = { depth: 8, bevelEnabled: true, bevelSegments: 2, steps: 2, bevelSize: 1, bevelThickness: 1 };
- const geometry = new THREE.ExtrudeGeometry( heartShape, extrudeSettings );
- const mesh = new THREE.Mesh( geometry, new THREE.MeshPhongMaterial() );
- </code>
- <h2>例子</h2>
- <p>
- [example:webgl_geometry_shapes geometry / shapes ]<br/>
- [example:webgl_geometry_extrude_shapes geometry / extrude / shapes ]
- </p>
- <h2>构造函数</h2>
- <h3>[name]( [param:Array points] )</h3>
- <p>
- points -- (optional) 一个[page:Vector2 Vector2]数组。<br /><br />
- 从点来创建一个Shape。第一个点定义了偏移量,
- 接下来的点被作为[page:LineCurve LineCurves]加入到[page:CurvePath.curves curves]中。<br /><br />
- 如果没有点被指定,一个空的形状将会被创建,且[page:.currentPoint]将会被设为原点。
- </p>
- <h2>属性</h2>
- <p>共有属性请参见其基类[page:Path]。</p>
- <h3>[property:String uuid]</h3>
- <p>
- 该类所创建的实例的[link:http://en.wikipedia.org/wiki/Universally_unique_identifier UUID]。它是自动被指定的,因此它不应当被编辑、更改。
- </p>
- <h3>[property:Array holes]</h3>
- <p>一个[page:Path paths]数组,定义了形状上的孔洞。</p>
- <h2>方法</h2>
- <p>共有方法请参见其基类[page:Path]。</p>
- <h3>[method:Array extractPoints]( [param:Integer divisions] )</h3>
- <p>
- divisions -- 结果的精细程度(细分数)。<br /><br />
- 在形状以及[page:.holes](孔洞)数组上调用[page:Curve.getPoints getPoints],并返回一个来自于:
- <code>
- {
- shape
- holes
- }
- </code>
- 的对象,其中的形状和孔洞是[page:Vector2 Vector2]数组。
- </p>
- <h3>[method:Array getPointsHoles]( [param:Integer divisions] )</h3>
- <p>
- divisions -- 结果的精细程度(细分数)。<br /><br />
- 获取一个表示形状上的孔洞的[page:Vector2 Vector2s]数组。
- </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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