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85 lines
2.4 KiB
HTML
85 lines
2.4 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<base href="../../../" />
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<script src="page.js"></script>
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<link type="text/css" rel="stylesheet" href="page.css" />
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</head>
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<body>
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[page:BufferGeometry] →
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<h1>[name]</h1>
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<p class="desc">
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[name] is a simple shape of Euclidean geometry. It is constructed from a
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number of triangular segments that are oriented around a central point and
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extend as far out as a given radius. It is built counter-clockwise from a
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start angle and a given central angle. It can also be used to create
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regular polygons, where the number of segments determines the number of
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sides.
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</p>
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<iframe
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id="scene"
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src="scenes/geometry-browser.html#CircleGeometry"
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></iframe>
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<script>
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// iOS iframe auto-resize workaround
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if ( /(iPad|iPhone|iPod)/g.test( navigator.userAgent ) ) {
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const scene = document.getElementById( 'scene' );
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scene.style.width = getComputedStyle( scene ).width;
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scene.style.height = getComputedStyle( scene ).height;
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scene.setAttribute( 'scrolling', 'no' );
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}
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</script>
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<h2>Code Example</h2>
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<code>
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const geometry = new THREE.CircleGeometry( 5, 32 );
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const material = new THREE.MeshBasicMaterial( { color: 0xffff00 } );
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const circle = new THREE.Mesh( geometry, material ); scene.add( circle );
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</code>
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<h2>Constructor</h2>
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<h3>
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[name]([param:Float radius], [param:Integer segments], [param:Float thetaStart], [param:Float thetaLength])
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</h3>
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<p>
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radius — Radius of the circle, default = 1.<br />
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segments — Number of segments (triangles), minimum = `3`, default = `32`.<br />
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thetaStart — Start angle for first segment, default = `0` (three o'clock
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position).<br />
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thetaLength — The central angle, often called theta, of the circular
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sector. The default is `2`*Pi, which makes for a complete circle.
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</p>
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<h2>Properties</h2>
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<p>See the base [page:BufferGeometry] class for common properties.</p>
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<h3>[property:Object parameters]</h3>
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<p>
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An object with a property for each of the constructor parameters. Any
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modification after instantiation does not change the geometry.
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</p>
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<h2>Methods</h2>
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<p>See the base [page:BufferGeometry] class for common methods.</p>
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<h2>Source</h2>
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<p>
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[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
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</p>
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</body>
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</html>
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