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111 lines
2.8 KiB
111 lines
2.8 KiB
<!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">Creates a tube that extrudes along a 3d curve.</p>
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<iframe id="scene" src="scenes/geometry-browser.html#TubeGeometry"></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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class CustomSinCurve extends THREE.Curve {
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constructor( scale = 1 ) {
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super();
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this.scale = scale;
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}
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getPoint( t, optionalTarget = new THREE.Vector3() ) {
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const tx = t * 3 - 1.5;
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const ty = Math.sin( 2 * Math.PI * t );
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const tz = 0;
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return optionalTarget.set( tx, ty, tz ).multiplyScalar( this.scale );
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}
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}
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const path = new CustomSinCurve( 10 );
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const geometry = new THREE.TubeGeometry( path, 20, 2, 8, false );
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const material = new THREE.MeshBasicMaterial( { color: 0x00ff00 } );
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const mesh = new THREE.Mesh( geometry, material );
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scene.add( mesh );
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</code>
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<h2>Constructor</h2>
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<h3>[name]([param:Curve path], [param:Integer tubularSegments], [param:Float radius], [param:Integer radialSegments], [param:Boolean closed])</h3>
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<p>
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path — [page:Curve] - A 3D path that inherits from the [page:Curve] base class. Default is a quadratic bezier curve.<br />
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tubularSegments — [page:Integer] - The number of segments that make up the tube. Default is `64`.<br />
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radius — [page:Float] - The radius of the tube. Default is `1`.<br />
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radialSegments — [page:Integer] - The number of segments that make up the cross-section. Default is `8`.<br />
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closed — [page:Boolean] Is the tube open or closed. Default is `false`.<br />
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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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<h3>[property:Array tangents]</h3>
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<p>
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An array of [page:Vector3] tangents
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</p>
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<h3>[property:Array normals]</h3>
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<p>
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An array of [page:Vector3] normals
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</p>
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<h3>[property:Array binormals]</h3>
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<p>
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An array of [page:Vector3] binormals
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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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