import { Vector3, Matrix4, Ray } from 'three';

export enum Frames {}
export const ENU_FRAME: Frames;
export const CAMERA_FRAME: Frames;
export const OBJECT_FRAME: Frames;

export class Ellipsoid {

	radius: Vector3;
	name: string;

	constructor( x: number, y: number, z: number );
	getCartographicToPosition( lat: number, lon: number, height: number, target: Vector3 ): Vector3;
	getPositionToCartographic( pos: Vector3, target: object ): { lat: number, lon: number, height: number };
	getCartographicToNormal( lat: number, lon: number, target: Vector3 ): Vector3;
	getPositionToNormal( pos: Vector3, target: Vector3 ): Vector3;
	getPositionToSurfacePoint( pos: Vector3, target: Vector3 ): Vector3;
	getPositionElevation( pos: Vector3 ): number;

	getEastNorthUpFrame( lat: number, lon: number, height: number, target: Matrix4 ): Matrix4;
	getOrientedEastNorthUpFrame( lat: number, lon: number, height: number, az: number, el: number, roll: number, target: Matrix4 ): Matrix4;
	getEastNorthUpAxes( lat: number, lon: number, vecEast: Vector3, vecNorth: Vector3, vecUp: Vector3, pos?: Vector3 ): void;

	getObjectFrame( lat: number, lon: number, height: number, az: number, el: number, roll: number, target: Matrix4, frame?: Frames ): Matrix4;
	getCartographicFromObjectFrame( matrix: Matrix4, target: object, frame?: Frames )
		: { lat: number, lon: number, height: number, azimuth: number, elevation: number, roll: number };

	closestPointToRayEstimate( ray: Ray, target: Vector3 ): Vector3;

	intersectRay( ray: Ray, target: Vector3 ): Vector3 | null;

	calculateHorizonDistance( latitude: number, elevation: number ): number;
	calculateEffectiveRadius( latitude: number ): number;

	copy( source: Ellipsoid ): Ellipsoid;
	clone(): Ellipsoid;

}