You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
81 lines
2.3 KiB
81 lines
2.3 KiB
3 years ago
|
<!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:Curve] →
|
||
|
|
|
||
|
|
<h1>[name]</h1>
|
||
|
|
|
||
|
|
<p class="desc">Create a smooth 3d spline curve from a series of points using the
|
||
|
|
[link:https://en.wikipedia.org/wiki/Centripetal_Catmull-Rom_spline Catmull-Rom] algorithm.</p>
|
||
|
|
|
||
|
|
<h2>Code Example</h2>
|
||
|
|
|
||
|
|
<code>
|
||
|
|
//Create a closed wavey loop
|
||
|
|
const curve = new THREE.CatmullRomCurve3( [
|
||
|
|
new THREE.Vector3( -10, 0, 10 ),
|
||
|
|
new THREE.Vector3( -5, 5, 5 ),
|
||
|
|
new THREE.Vector3( 0, 0, 0 ),
|
||
|
|
new THREE.Vector3( 5, -5, 5 ),
|
||
|
|
new THREE.Vector3( 10, 0, 10 )
|
||
|
|
] );
|
||
|
|
|
||
|
|
const points = curve.getPoints( 50 );
|
||
|
|
const geometry = new THREE.BufferGeometry().setFromPoints( points );
|
||
|
|
|
||
|
|
const material = new THREE.LineBasicMaterial( { color: 0xff0000 } );
|
||
|
|
|
||
|
|
// Create the final object to add to the scene
|
||
|
|
const curveObject = new THREE.Line( geometry, material );
|
||
|
|
</code>
|
||
|
|
|
||
|
|
<h2>Examples</h2>
|
||
|
|
|
||
|
|
<p>
|
||
|
|
[example:webgl_geometry_extrude_splines WebGL / geometry / extrude / splines]
|
||
|
|
</p>
|
||
|
|
|
||
|
|
<h2>Constructor</h2>
|
||
|
|
|
||
|
|
<h3>[name]( [param:Array points], [param:Boolean closed], [param:String curveType], [param:Float tension] )</h3>
|
||
|
|
<p>
|
||
|
|
points – An array of [page:Vector3] points<br/>
|
||
|
|
closed – Whether the curve is closed. Default is `false`.<br/>
|
||
|
|
curveType – Type of the curve. Default is `centripetal`.<br/>
|
||
|
|
tension – Tension of the curve. Default is `0.5`.
|
||
|
|
</p>
|
||
|
|
|
||
|
|
|
||
|
|
<h2>Properties</h2>
|
||
|
|
<p>See the base [page:Curve] class for common properties.</p>
|
||
|
|
|
||
|
|
<h3>[property:Array points]</h3>
|
||
|
|
<p>The array of [page:Vector3] points that define the curve. It needs at least two entries.</p>
|
||
|
|
|
||
|
|
<h3>[property:Boolean closed]</h3>
|
||
|
|
<p>The curve will loop back onto itself when this is true.</p>
|
||
|
|
|
||
|
|
<h3>[property:String curveType]</h3>
|
||
|
|
<p>Possible values are `centripetal`, `chordal` and `catmullrom`.</p>
|
||
|
|
|
||
|
|
<h3>[property:Float tension]</h3>
|
||
|
|
<p>When [page:.curveType] is `catmullrom`, defines catmullrom's tension.</p>
|
||
|
|
|
||
|
|
|
||
|
|
<h2>Methods</h2>
|
||
|
|
<p>See the base [page:Curve] 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>
|