javascript
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three.js
镜像来自 https://github.com/tazdij/three.js.git


			
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		<h1>[name]</h1>

		<div class="desc">
			The basis for a half-edge data structure, also known as doubly connected edge list (DCEL).<br />
		</div>


		<h2>Constructor</h2>


		<h3>[name]( [page:Vertex vertex], [page:Face face] )</h3>
		[page:Vertex vertex] - [page:Vertex] A reference to its destination vertex.<br /><br />
		[page:Face face] - [page:Face] A reference to its face.<br />

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		<h2>Properties</h2>

		<h3>[property:Vertex vertex]</h3>
		<div>
			Reference to the destination vertex. The origin vertex can be obtained by querying the destination of its twin, or of the previous half-edge. Default is undefined.
		</div>

		<h3>[property:HalfEdge prev]</h3>
		<div>
			Reference to the previous half-edge of the same face. Default is null.
		</div>

		<h3>[property:HalfEdge next]</h3>
		<div>
			Reference to the next half-edge of the same face. Default is null.
		</div>

		<h3>[property:HalfEdge twin]</h3>
		<div>
			Reference to the twin half-edge to reach the opposite face. Default is null.
		</div>

		<h3>[property:Face face]</h3>
		<div>
			 Each half-edge bounds a single face and thus has a reference to that face. Default is undefined.
		</div>

		<h2>Methods</h2>

		<h3>[method:Vertex head]()</h3>
		<div>Returns the destintation vertex.</div>

		<h3>[method:Vertex tail]()</h3>
		<div>Returns the origin vertex.</div>

		<h3>[method:Float length]()</h3>
		<div>Returns the [link:https://en.wikipedia.org/wiki/Euclidean_distance Euclidean length]
		(straight-line length) of the edge.</div>

		<h3>[method:Float lengthSquared]()</h3>
		<div>Returns the square of the [link:https://en.wikipedia.org/wiki/Euclidean_distance Euclidean length]
		(straight-line length) of the edge.</div>

		<h3>[method:HalfEdge setTwin]( [page:HalfEdge edge] )</h3>
		[page:HalfEdge edge] - Any half-edge.<br /><br />

		<div>Sets the twin edge of this half-edge. It also ensures that the twin reference of the given half-edge is correctly set.</div>

		<h2>Source</h2>

		[link:https://github.com/mrdoob/three.js/blob/master/examples/js/QuickHull.js examples/js/QuickHull.js]
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