import { ILatLng, Polygon } from "@ionic-native/google-maps";
export declare class PolygonUtil {
    constructor();
    findPolygonCenter(polygon: Polygon): ILatLng;
    private findCenterTurf;
    private findCenterTurfReduce;
    calcPolygonAreaHa(polygon: Polygon): Number;
    coordsGoogleToTurf(coordsGoogle: ILatLng[]): number[][];
    coordsTurfToGoogle(coordsTurf: number[][]): ILatLng[];
    getShapeImage(points: ILatLng[], size: number): string;
}