案例:Three 几何体建模5U型组合     状态:可编辑再运行    进入横版
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var line2 = new THREE.LineCurve(new THREE.Vector2(-R, 0, 0), new THREE.Vector2(-R, 200, 0));
 
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<!DOCTYPE html>
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<html>
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<head>
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  <meta charset="UTF-8">
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  <style>
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    body {
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      margin: 0;
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      overflow: hidden;
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      /* 隐藏body窗口区域滚动条 */
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    }
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  </style>
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  <!--引入three.js三维引擎-->
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  <script src="/js/threejs/threer92.js"></script>
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  <script src="/example/threejs/solarsystem/files/OrbitControls.js"></script>
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</head>
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<body>
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  <script>
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    //创建场景
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    var scene = new THREE.Scene();
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    var geometry = new THREE.BufferGeometry(); //声明一个几何体对象
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// 绘制一个U型轮廓
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var R = 80;//圆弧半径

 运行结果 
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