import { Observable, Event } from '@zcomponent/core';
import * as THREE from 'three';
export declare class RotationHelper extends THREE.Object3D {
    revolutionCounter: RevolutionCounter;
    private mesh;
    axis: Observable<"X" | "Y" | "Z" | null, never>;
    enabled: Observable<boolean, never>;
    angleDelta: Observable<number, never>;
    space: Observable<"local" | "world" | null, never>;
    object: Observable<THREE.Object3D<any> | null, never>;
    constructor(domElement: HTMLElement);
    private onRotateStart;
    private onRotateEnd;
    private onRotate;
    updateCamera(camera: THREE.Camera): void;
    dispose: () => void;
}
declare class RevolutionCounter extends THREE.Object3D {
    private domElement;
    startAngle: number;
    private isDragging;
    accumulatedAngle: Observable<number, never>;
    private lastAngle;
    started: Event<[]>;
    ended: Event<[]>;
    camera: THREE.Camera;
    angleDelta: Event<[number]>;
    enabled: boolean;
    space: Observable<"local" | "world" | null, never>;
    private overlayElement;
    private objectDirection;
    private cameraDirection;
    private raycaster;
    private raycasterCoord;
    private referenceVector;
    private vectorFromOrigin;
    private overlayElementPosition;
    private worldStartVector;
    private plane;
    constructor(domElement: HTMLElement);
    private angleBetweenOriginAndPointer;
    private updateOverlayElementPosition;
    onPointerDown: (event: PointerEvent) => void;
    onPointerMove: (event: PointerEvent) => void;
    onPointerUp: () => void;
    private getOverlayPosition;
    private getCameraOrientationSign;
    dispose: () => void;
}
export {};