javascript
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three.js
cermin dari https://github.com/tazdij/three.js.git


			
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		[page:Object3D] &rarr;

		<h1>[name]</h1>

		<p class="desc">An 3D arrow object for visualizing directions.</p>


		<h2>Example</h2>

		<div>[example:webgl_geometries WebGL / geometries]</div>
		<div>[example:webgl_geometry_normals WebGL / geometry / normals]</div>
		<div>[example:webgl_shadowmesh WebGL / shadowmesh]</div>

		<code>
		var dir = new THREE.Vector3( 1, 2, 0 );

		//normalize the direction vector (convert to vector of length 1)
		dir.normalize();

		var origin = new THREE.Vector3( 0, 0, 0 );
		var length = 1;
		var hex = 0xffff00;

		var arrowHelper = new THREE.ArrowHelper( dir, origin, length, hex );
		scene.add( arrowHelper );
		</code>


		<h2>Constructor</h2>


		<h3>[name]([param:Vector3 dir], [param:Vector3 origin], [param:Number length], [param:Number hex], [param:Number headLength], [param:Number headWidth] )</h3>
		<p>
		[page:Vector3 dir] -- direction from origin. Must be a unit vector. <br />
		[page:Vector3 origin] -- Point at which the arrow starts.<br />
		[page:Number length] -- length of the arrow. Default is *1*.<br />
		[page:Number hex] -- hexadecimal value to define color. Default is 0xffff00.<br />
		[page:Number headWidth] -- The width of the head of the arrow. Default is 0.2 * headLength.<br />
		</p>

		<h2>Properties</h2>
		<p>See the base [page:Object3D] class for common properties.</p>


		<h3>[property:Line line]</h3>
		<p>Contains the line part of the arrowHelper.</p>

		<h3>[property:Mesh cone]</h3>
		<p>Contains the cone part of the arrowHelper.</p>


		<h2>Methods</h2>
		<p>See the base [page:Object3D] class for common methods.</p>


		<h3>[method:null setColor]([param:Color color])</h3>
		<p>
		color -- The desired color.<br /><br />

		Sets the color of the arrowHelper.
		</p>

		<h3>[method:null setLength]([param:Number length], [param:Number headLength], [param:Number headWidth])</h3>
		<p>
		length -- The desired length.<br />
		headLength -- The length of the head of the arrow.<br />
		headWidth -- The width of the head of the arrow.<br /><br />

		Sets the length of the arrowhelper.
		</p>

		<h3>[method:null setDirection]([param:Vector3 dir])</h3>
		<p>
		dir -- The desired direction. Must be a unit vector.<br /><br />

		Sets the direction of the arrowhelper.
		</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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