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three.js
mirrorاز https://github.com/mrdoob/three.js.git


			
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		[page:Object3D] &rarr; [page:Line] &rarr; [page:LineSegments] &rarr;

		<h1>[name]</h1>

		<p class="desc">
		用于模拟相机视锥体的辅助对象.它使用 [page:LineSegments] 来模拟相机视锥体.<br /><br />
		[name] must be a child of the scene.
		</p>

		<h2>代码示例</h2>

		<code>
		const camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 1000 );
		const helper = new THREE.CameraHelper( camera );
		scene.add( helper );
		</code>

		<h2>例子</h2>
		<p>
			[example:webgl_camera WebGL / camera]<br/>
			[example:webgl_geometry_extrude_splines WebGL / extrude / splines]
		</p>

		<h2>构造函数</h2>


		<h3>[name]( [param:Camera camera] )</h3>
		<p>
		[page:Camera camera] -- 被模拟的相机.<br /><br />

		为指定相机创建一个新的相机辅助对象 [Name] .
		</p>


		<h2>属性</h2>
		<p>请到基类 [page:LineSegments] 页面查看公共属性.</p>


		<h3>[property:Camera camera]</h3>
		<p>被模拟的相机.</p>

		<h3>[property:Object pointMap]</h3>
		<p>包含用于模拟相机的点.</p>

		<h3>[property:Object matrix]</h3>
		<p>请参考相机的世界矩阵 [page:Object3D.matrixWorld camera.matrixWorld].</p>

		<h3>[property:Object matrixAutoUpdate]</h3>
		<p>
			请查看 [page:Object3D.matrixAutoUpdate]. 这里设置为 *false* 表示辅助对象
			使用相机的 [page:Object3D.matrixWorld matrixWorld].
		</p>


		<h2>方法</h2>
		<p>请到基类 [page:LineSegments] 页面查看公共方法.</p>

		<h3>[method:undefined dispose]()</h3>
		<p>
			用于辅助对象销毁内部创建的 [page:Line.material material] 和 [page:Line.geometry geometry] 。
		</p>

		<h3>[method:this setColors]( [param:Color frustum], [param:Color cone], [param:Color up], [param:Color target], [param:Color cross] )</h3>
		<p>
			定义辅助对象的颜色。
		</p>

		<h3>[method:undefined update]()</h3>
		<p>基于相机的投影矩阵更新辅助对象.</p>

		<h2>源码</h2>

		<p>
			[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
		</p>
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