import { BehaviorSubject, Observable } from 'rxjs';
import { Raycaster, Vector2 } from 'three';
import { ModelLoaderService } from './model-loader.service';
import { IFCViewerService } from './ifc-viewer.service';
import { PickedObject } from './models';
import * as i0 from "@angular/core";
export declare class PickingService {
    private _viewerService;
    private _modelLoaderService;
    hoveredMesh$: BehaviorSubject<any>;
    emitRate$: Observable<number>;
    mouseMove$: Observable<MouseEvent>;
    raycaster: Raycaster;
    mouse: Vector2;
    private unpickableIDs;
    constructor(_viewerService: IFCViewerService, _modelLoaderService: ModelLoaderService);
    getUnpickable(): any;
    appendUnpickable(expressIDs: number[], modelID?: number): void;
    removeUnpickable(expressIDs: number[], modelID?: number): void;
    resetUnpickable(): void;
    makeModelUnpickable(modelID: number): void;
    makeModelPickable(modelID: number): void;
    makeAllUnpickable(): void;
    hoveredElementObservable(canvas: any): Observable<PickedObject | null>;
    private getHoveredElement;
    private nearestIntersection;
    static ɵfac: i0.ɵɵFactoryDeclaration<PickingService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<PickingService>;
}