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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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<h1>[name]</h1>
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<p class="desc">
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一个包含形状实用函数的类。<br /><br />
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请注意,这些都是线性函数,因此有必要分别计算向量的x,y(和z,w,如果存在的话)分量。
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</p>
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<h2>方法</h2>
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<h3>[method:Number area]( contour )</h3>
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<p>
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contour -- 2D多边形,一个THREE.Vector2()数组。<br /><br />
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计算(2D)轮廓多边形的面积。
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</p>
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<h3>[method:Boolean isClockWise]( pts )</h3>
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<p>
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pts -- 定义2D多边形的点<br /><br />
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请注意,这是一个线性函数,因此需要分别计算多边形的x,y分量。<br /><br />
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由[page:Path Path],[page:ExtrudeGeometry ExtrudeGeometry]和[page:ShapeGeometry ShapeGeometry]内部使用。
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</p>
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<h3>[method:Array triangulateShape]( contour, holes )</h3>
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<p>
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contour -- 2D多边形。<br />
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holes -- 孔洞数组<br /><br />
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由[page:ExtrudeGeometry ExtrudeGeometry]和[page:ShapeGeometry ShapeGeometry]内部使用以计算带孔的形状中的面。
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</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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