CircleGeometry.html 1.6 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="utf-8" />
  5. <base href="../../../" />
  6. <script src="list.js"></script>
  7. <script src="page.js"></script>
  8. <link type="text/css" rel="stylesheet" href="page.css" />
  9. </head>
  10. <body>
  11. [page:Geometry] &rarr;
  12. <h1>[name]</h1>
  13. <div class="desc">CircleGeometry is a simple shape of Euclidean geometry. It is contructed 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.
  14. </div>
  15. <h2>Example</h2>
  16. <iframe src='scenes/geometry-browser.html#CircleGeometry'></iframe>
  17. <code>
  18. var geometry = new THREE.CircleGeometry( 5, 32 );
  19. var material = new THREE.MeshBasicMaterial( { color: 0xffff00 } );
  20. var circle = new THREE.Mesh( geometry, material );
  21. scene.add( circle );
  22. </code>
  23. <h2>Constructor</h2>
  24. <h3>[name]([page:Float radius], [page:Integer segments], [page:Float thetaStart], [page:Float thetaLength])</h3>
  25. <div>
  26. radius — Radius of the circle, default = 50.<br />
  27. segments — Number of segments (triangles), minimum = 3, default = 8.<br />
  28. thetaStart — Start angle for first segment, default = 0 (three o'clock position).<br />
  29. thetaLength — The central angle, often called theta, of the circular sector. The default is 2*Pi, which makes for a complete circle.
  30. </div>
  31. <h2>Source</h2>
  32. [link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
  33. </body>
  34. </html>