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


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8" />
		<base href="../../../" />
		<script src="page.js"></script>
		<link type="text/css" rel="stylesheet" href="page.css" />
	</head>
	<body>
		[page:BufferGeometry] &rarr;

		<h1>[name]</h1>

		<p class="desc">
			[name] is 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>

		<iframe
			id="scene"
			src="scenes/geometry-browser.html#CircleGeometry"
		></iframe>

		<script>

		// iOS iframe auto-resize workaround

		if ( /(iPad|iPhone|iPod)/g.test( navigator.userAgent ) ) {

			const scene = document.getElementById( 'scene' );

			scene.style.width = getComputedStyle( scene ).width;
			scene.style.height = getComputedStyle( scene ).height;
			scene.setAttribute( 'scrolling', 'no' );

		}

		</script>
    
		<h2>Code Example</h2>

		<code>
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>

		<h2>Constructor</h2>

		<h3>
			[name]([param:Float radius], [param:Integer segments], [param:Float thetaStart], [param:Float thetaLength])
		</h3>
		<p>
			radius — Radius of the circle, default = 1.<br />
			segments — Number of segments (triangles), minimum = `3`, default = `32`.<br />
			thetaStart — Start angle for first segment, default = `0` (three o'clock
			position).<br />
			thetaLength — The central angle, often called theta, of the circular
			sector. The default is `2`*Pi, which makes for a complete circle.
		</p>

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

		<h3>[property:Object parameters]</h3>
		<p>
			An object with a property for each of the constructor parameters. Any
			modification after instantiation does not change the geometry.
		</p>

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

		<h2>Source</h2>

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