import { CzmViewer } from 'xbsj-xe2/dist-node/xe2-cesium-objects';
import { CzmESVisualObject } from 'esobjs-xe2-plugin/dist-node/esobjs-xe2-plugin-main/esobjs/base';
import { ESEntityCluster } from '../../objs';
export declare class CzmESEntityCluster extends CzmESVisualObject<ESEntityCluster> {
    static readonly type: void;
    private _scaleFactor;
    private _urlData;
    get urlData(): any;
    set urlData(value: any);
    get urlDataChanged(): import("xbsj-xe2/dist-node/xe2-base-utils").Listener<[any, any]>;
    private _dataSource;
    private _clusterImages;
    private _clusterImageAttribute;
    private _clusterImageUrl;
    constructor(sceneObject: ESEntityCluster, czmViewer: CzmViewer);
    private updateEntityCluster;
    private updateStyle;
    private getClusterStyle;
    private _addEntities;
    private _getPositionLLH;
}