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88 lines
2.2 KiB
88 lines
2.2 KiB
<!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:Object3D] → [page:Line] → [page:LineSegments] →
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<h1>[name]</h1>
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<p class="desc">
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用于模拟相机视锥体的辅助对象.<br />
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它使用 [page:LineSegments] 来模拟相机视锥体.
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</p>
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<h2>代码示例</h2>
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<code>
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const camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 1000 );
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const helper = new THREE.CameraHelper( camera );
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scene.add( helper );
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</code>
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<h2>例子</h2>
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<p>
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[example:webgl_camera WebGL / camera]<br/>
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[example:webgl_geometry_extrude_splines WebGL / extrude / splines]
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</p>
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<h2>构造函数</h2>
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<h3>[name]( [param:Camera camera] )</h3>
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<p>
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[page:Camera camera] -- 被模拟的相机.<br /><br />
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为指定相机创建一个新的相机辅助对象 [Name] .
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</p>
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<h2>属性</h2>
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<p>请到基类 [page:LineSegments] 页面查看公共属性.</p>
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<h3>[property:Camera camera]</h3>
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<p>被模拟的相机.</p>
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<h3>[property:Object pointMap]</h3>
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<p>包含用于模拟相机的点.</p>
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<h3>[property:Object matrix]</h3>
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<p>请参考相机的世界矩阵 [page:Object3D.matrixWorld camera.matrixWorld].</p>
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<h3>[property:Object matrixAutoUpdate]</h3>
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<p>
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请查看 [page:Object3D.matrixAutoUpdate]. 这里设置为 *false* 表示辅助对象
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使用相机的 [page:Object3D.matrixWorld matrixWorld].
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</p>
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<h2>方法</h2>
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<p>请到基类 [page:LineSegments] 页面查看公共方法.</p>
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<h3>[method:undefined dispose]()</h3>
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<p>
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用于辅助对象销毁内部创建的 [page:Line.material material] 和 [page:Line.geometry geometry] 。
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</p>
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<h3>[method:this setColors]( [param:Color frustum], [param:Color cone], [param:Color up], [param:Color target], [param:Color cross] )</h3>
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<p>
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定义辅助对象的颜色。
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</p>
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<h3>[method:undefined update]()</h3>
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<p>基于相机的投影矩阵更新辅助对象.</p>
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<h2>源码</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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