Plane

new Plane(normal?: Vector3, constant?: number)

THREE equivalent: THREE.Plane

3D plane defined by a unit normal and a signed distance from the origin. Normalizes on construction.

Properties

Name	Type	Description
normal	Vector3	Plane normal (unit length).
constant	number	Signed distance from the origin along the normal.

Methods

Method	Description
setFromCoplanarPoints(a: Vector3, b: Vector3, c: Vector3): this	Defines the plane from three coplanar points.
distanceToPoint(point: Vector3): number	Returns the signed distance from the point to the plane.
intersectLine(line: Line3, target?: Vector3): Vector3|undefined	Returns the intersection point with a line segment, or undefined if parallel.
intersectsSphere(sphere: Sphere): boolean	Returns true if the sphere crosses the plane.
projectPoint(point: Vector3, target?: Vector3): Vector3	Projects a point onto the plane.
normalize(): this	Normalizes the plane equation.
clone(): Plane	Returns a new Plane with the same normal and constant.