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	<title>CircleGeometry - Three.js Docs</title>
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		<p class="inheritance" translate="no"><a href="EventDispatcher.html">EventDispatcher</a> → <a href="BufferGeometry.html">BufferGeometry</a> → </p>
	<h1 translate="no">CircleGeometry</h1>
		<section>
			<header>
				<div class="class-description"><p>A simple shape of Euclidean geometry. It is constructed from a
number of triangular segments that are oriented around a central point and
extend as far out as a given radius. It is built counter-clockwise from a
start angle and a given central angle. It can also be used to create
regular polygons, where the number of segments determines the number of
sides.</p></div>
				<iframe id="viewer" src="../scenes/geometry-browser.html#CircleGeometry"></iframe>
				<h2>Code Example</h2>
				<div translate="no"><pre><code class="language-js">const geometry = new THREE.CircleGeometry( 5, 32 );
const material = new THREE.MeshBasicMaterial( { color: 0xffff00 } );
const circle = new THREE.Mesh( geometry, material );
scene.add( circle )
</code></pre></div>
			</header>
			<article>
				<div class="container-overview">
					<h2>Constructor</h2>
					<h3 class="name name-method" id="CircleGeometry" translate="no">new <a href="#CircleGeometry">CircleGeometry</a><span class="signature">( radius : <span class="param-type">number</span>, segments : <span class="param-type">number</span>, thetaStart : <span class="param-type">number</span>, thetaLength : <span class="param-type">number</span> )</span> </h3>
					<div class="method">
						<div class="description">
							<p>Constructs a new circle geometry.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong>radius</strong>
									</td>
									<td class="description last">
										<p>Radius of the circle.</p>
										<p>Default is <code>1</code>.</p>
									</td>
								</tr>
								<tr>
									<td class="name">
										<strong>segments</strong>
									</td>
									<td class="description last">
										<p>Number of segments (triangles), minimum = <code>3</code>.</p>
										<p>Default is <code>32</code>.</p>
									</td>
								</tr>
								<tr>
									<td class="name">
										<strong>thetaStart</strong>
									</td>
									<td class="description last">
										<p>Start angle for first segment in radians.</p>
										<p>Default is <code>0</code>.</p>
									</td>
								</tr>
								<tr>
									<td class="name">
										<strong>thetaLength</strong>
									</td>
									<td class="description last">
										<p>The central angle, often called theta,
of the circular sector in radians. The default value results in a complete circle.</p>
										<p>Default is <code>Math.PI*2</code>.</p>
									</td>
								</tr>
							</tbody>
						</table>
					</div>
				</div>
				<h2 class="subsection-title">Properties</h2>
				<div class="member">
					<h3 class="name" id="parameters" translate="no">.<a href="#parameters">parameters</a><span class="type-signature"> : Object</span> </h3>
					<div class="description">
						<p>Holds the constructor parameters that have been
used to generate the geometry. Any modification
after instantiation does not change the geometry.</p>
					</div>
				</div>
				<h2 class="subsection-title">Static Methods</h2>
					<h3 class="name name-method" id=".fromJSON" translate="no">.<a href="#.fromJSON">fromJSON</a><span class="signature">( data : <span class="param-type">Object</span> )</span><span class="type-signature"> : <a href="CircleGeometry.html">CircleGeometry</a></span> </h3>
					<div class="method">
						<div class="description">
							<p>Factory method for creating an instance of this class from the given
JSON object.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong>data</strong>
									</td>
									<td class="description last">
										<p>A JSON object representing the serialized geometry.</p>
									</td>
								</tr>
							</tbody>
						</table>
						<dl class="details">
							<dt class="tag-returns"><strong>Returns:</strong> A new instance.</dt>
						</dl>
					</div>
				<h2 class="subsection-title">Source</h2>
				<p>
					<a href="https://github.com/mrdoob/three.js/blob/master/src/geometries/CircleGeometry.js" translate="no" target="_blank" rel="noopener">src/geometries/CircleGeometry.js</a>
				</p>
			</article>
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