import { Viewer, Entity, PolylineGraphics, Cartesian3 } from 'cesium';
export declare const createPolylineFromPolygon: (viewer: Viewer, e: Entity, options?: PolylineGraphics.ConstructorOptions, init?: {
    offsetZ?: number;
}) => PolylineGraphics | undefined;
export declare function getEntityCartesian3Center(entity: Entity, init?: {
    viewer?: Viewer;
    offsetZ?: number;
}): Cartesian3;
export declare function correlationEntity(entity: Entity, cb: (e: Entity) => void): void;