123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384 |
- <!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>
|