创建一条平滑的二维 三次贝塞尔曲线, 由起点、终点和两个控制点所定义。
const curve = new THREE.CubicBezierCurve(
new THREE.Vector2( -10, 0 ),
new THREE.Vector2( -5, 15 ),
new THREE.Vector2( 20, 15 ),
new THREE.Vector2( 10, 0 )
);
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 );
[page:Vector2 v0] – 起点
[page:Vector2 v1] – 第一个控制点
[page:Vector2 v2] – 第二个控制点
[page:Vector2 v3] – 终点
共有属性请参见其基类[page:Curve]。
起点
第一个控制点
第二个控制点
终点
共有方法请参见其基类[page:Curve]。
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]