import { Behavior, ContextManager, Observable } from '@zcomponent/core';
import { Object3D } from '../components/Object3D';
/**
 * Move the camera around a target location at a provided speed.
 *
 * This behavior is registered to run at design time.
 * @zbehavior
 * @zicon 360
 * @zparents three/Object3D/Camera/**
 */
export declare class AutoOrbit extends Behavior<Object3D> {
    /**
     * the initial target of the orbit.
     * @zprop
     * @zdefault [0, 0, 0]
     */
    initialTarget: Observable<never, [number, number, number]>;
    /**
     * The speed of the orbit.
     * @zprop
     * @zdefault 1
     */
    speed: Observable<number, never>;
    /**
     * Constructs a new AutoOrbit Behavior.
     * @param contextManager - The context manager.
     * @param instance - The Object3D instance.
     */
    constructor(contextManager: ContextManager, instance: Object3D);
    private _frame;
}