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CircleGeometry.html
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CircleGeometry.html
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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] →
<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>