export default class MeasureArea {
    viewer: Cesium.Viewer;
    tempPositions: Cesium.Cartesian3[];
    measureArea: number;
    geometry: any;
    centerPosition: any;
    mesureResultEntity: any;
    private callback;
    polygonStyle: any;
    lableText: any;
    constructor(viewer: Cesium.Viewer, polygonStyle?: any, lableText?: any);
    activate(callback: any): void;
    cartesian3ToPoint3D: (position: Cesium.Cartesian3) => {
        x: number;
        y: number;
        z: number;
    };
    drawEndHandler: (e: any) => boolean;
    clear(): void;
    createResultLabel: (area: number) => void;
    getCenterPosition: () => Cesium.Cartesian3;
}