javascript
/
three.js
镜像自地址 https://github.com/tazdij/three.js.git


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

		<h1>[name]</h1>

		<p class="desc">
		This helps with visualizing what a camera contains in its frustum.<br />
		It visualizes the frustum of a camera using a [page:LineSegments].
		</p>

		<h2>Code Example</h2>
		<code>
var camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 1000 );
var helper = new THREE.CameraHelper( camera );
scene.add( helper );
		</code>

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

		<h2>Constructor</h2>


		<h3>[name]( [param:Camera camera] )</h3>
		<p>
		[page:Camera camera] -- The camera to visualize.<br /><br />

		This create a new [Name] for the specified camera.
		</p>


		<h2>Properties</h2>
		<p>See the base [page:LineSegments] class for common properties.</p>


		<h3>[property:Camera camera]</h3>
		<p>The camera being visualized.</p>

		<h3>[property:object pointMap]</h3>
		<p>This contains the points used to visualize the camera.</p>

		<h3>[property:object matrix]</h3>
		<p>Reference to the [page:Object3D.matrixWorld camera.matrixWorld].</p>

		<h3>[property:object matrixAutoUpdate]</h3>
		<p>
			See [page:Object3D.matrixAutoUpdate]. Set to *false* here as the helper is using the
			camera's [page:Object3D.matrixWorld matrixWorld].
		</p>


		<h2>Methods</h2>
		<p>See the base [page:LineSegments] class for common methods.</p>


		<h3>[method:null update]()</h3>
		<p>Updates the helper based on the projectionMatrix of the camera.</p>

		<h2>Source</h2>

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