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76 lines
2.3 KiB
76 lines
2.3 KiB
3 years ago
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<!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.
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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.
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It is built counter-clockwise from a start angle and a given central angle.
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It can also be used to create regular polygons, where the number of segments determines the number of sides.
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</p>
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<iframe id="scene" src="scenes/geometry-browser.html#CircleGeometry"></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 );
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scene.add( circle );
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</code>
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<h2>Constructor</h2>
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<h3>[name]([param:Float radius], [param:Integer segments], [param:Float thetaStart], [param:Float thetaLength])</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 = 8.<br />
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thetaStart — Start angle for first segment, default = 0 (three o'clock position).<br />
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thetaLength — The central angle, often called theta, of the circular 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 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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