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80 lines
2.3 KiB
80 lines
2.3 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:Curve] →
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<h1>[name]</h1>
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<p class="desc">Create a smooth 3d spline curve from a series of points using the
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[link:https://en.wikipedia.org/wiki/Centripetal_Catmull-Rom_spline Catmull-Rom] algorithm.</p>
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<h2>Code Example</h2>
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<code>
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//Create a closed wavey loop
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const curve = new THREE.CatmullRomCurve3( [
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new THREE.Vector3( -10, 0, 10 ),
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new THREE.Vector3( -5, 5, 5 ),
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new THREE.Vector3( 0, 0, 0 ),
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new THREE.Vector3( 5, -5, 5 ),
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new THREE.Vector3( 10, 0, 10 )
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] );
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const points = curve.getPoints( 50 );
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const geometry = new THREE.BufferGeometry().setFromPoints( points );
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const material = new THREE.LineBasicMaterial( { color: 0xff0000 } );
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// Create the final object to add to the scene
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const curveObject = new THREE.Line( geometry, material );
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</code>
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<h2>Examples</h2>
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<p>
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[example:webgl_geometry_extrude_splines WebGL / geometry / extrude / splines]
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</p>
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<h2>Constructor</h2>
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<h3>[name]( [param:Array points], [param:Boolean closed], [param:String curveType], [param:Float tension] )</h3>
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<p>
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points – An array of [page:Vector3] points<br/>
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closed – Whether the curve is closed. Default is `false`.<br/>
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curveType – Type of the curve. Default is `centripetal`.<br/>
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tension – Tension of the curve. Default is `0.5`.
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</p>
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<h2>Properties</h2>
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<p>See the base [page:Curve] class for common properties.</p>
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<h3>[property:Array points]</h3>
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<p>The array of [page:Vector3] points that define the curve. It needs at least two entries.</p>
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<h3>[property:Boolean closed]</h3>
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<p>The curve will loop back onto itself when this is true.</p>
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<h3>[property:String curveType]</h3>
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<p>Possible values are `centripetal`, `chordal` and `catmullrom`.</p>
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<h3>[property:Float tension]</h3>
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<p>When [page:.curveType] is `catmullrom`, defines catmullrom's tension.</p>
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<h2>Methods</h2>
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<p>See the base [page:Curve] 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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