/*---------------------------------------------------------------------------------------------
* Copyright (c) Bentley Systems, Incorporated. All rights reserved.
* See LICENSE.md in the project root for license terms and full copyright notice.
*--------------------------------------------------------------------------------------------*/
import { Angle, Constant } from "@itwin/core-geometry";
/** @internal */
export class WebMercator {
    // calculates the longitude in EPSG:4326 (WGS84) from the projected x cartesian coordinate in EPSG:3857
    static getEPSG4326Lon(x3857) {
        return Angle.radiansToDegrees(x3857 / Constant.earthRadiusWGS84.equator);
    }
    // calculates the latitude in EPSG:4326 (WGS84) from the projected y cartesian coordinate in EPSG:3857
    static getEPSG4326Lat(y3857) {
        const y = 2 * Math.atan(Math.exp(y3857 / Constant.earthRadiusWGS84.equator)) - (Math.PI / 2);
        return Angle.radiansToDegrees(y);
    }
}
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