ootk-core
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Orbital Object Toolkit. A modern typed replacement for satellite.js including SGP4 propagation, TLE parsing, Sun and Moon calculations, and more.
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TypeScript
/**
* @author Theodore Kruczek.
* @license MIT
* @copyright (c) 2022-2025 Theodore Kruczek Permission is
* hereby granted, free of charge, to any person obtaining a copy of this
* software and associated documentation files (the "Software"), to deal in the
* Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import { AngularDistanceMethod, Degrees, GroundObject, Kilometers, Radians } from '../main.js';
import { EpochUTC } from '../time/EpochUTC.js';
import { ITRF } from './ITRF.js';
/**
* This Geodetic class represents a geodetic coordinate in three-dimensional
* space, consisting of latitude, longitude, and altitude. It provides various
* methods to perform calculations and operations related to geodetic
* coordinates.
*
* This is a class for geodetic coordinates. This is related to the GroundObject
* class, which is used to represent an object on the surface of the Earth.
*/
export declare class Geodetic {
lat: Radians;
lon: Radians;
alt: Kilometers;
constructor(latitude: Radians, longitude: Radians, altitude: Kilometers);
/**
* Creates a Geodetic object from latitude, longitude, and altitude values in
* degrees.
* @param latitude The latitude value in degrees.
* @param longitude The longitude value in degrees.
* @param altitude The altitude value in kilometers.
* @returns A Geodetic object representing the specified latitude, longitude,
* and altitude.
*/
static fromDegrees(latitude: Degrees, longitude: Degrees, altitude: Kilometers): Geodetic;
/**
* Returns a string representation of the Geodetic object.
* @returns A string containing the latitude, longitude, and altitude of the Geodetic object.
*/
toString(): string;
/**
* Gets the latitude in degrees.
* @returns The latitude in degrees.
*/
get latDeg(): number;
/**
* Gets the longitude in degrees.
* @returns The longitude in degrees.
*/
get lonDeg(): number;
/**
* Converts the geodetic coordinates to a ground position.
* @returns The ground position object.
*/
toGroundObject(): GroundObject;
/**
* Converts the geodetic coordinates to the International Terrestrial
* Reference Frame (ITRF) coordinates.
* @param epoch The epoch in UTC.
* @returns The ITRF coordinates.
*/
toITRF(epoch: EpochUTC): ITRF;
/**
* Calculates the angle between two geodetic coordinates.
* @param g The geodetic coordinate to calculate the angle to.
* @param method The method to use for calculating the angular distance (optional, default is Haversine).
* @returns The angle between the two geodetic coordinates in radians.
*/
angle(g: Geodetic, method?: AngularDistanceMethod): Radians;
/**
* Calculates the angle in degrees between two Geodetic coordinates.
* @param g The Geodetic coordinate to calculate the angle with.
* @param method The method to use for calculating the angular distance (optional, default is Haversine).
* @returns The angle in degrees.
*/
angleDeg(g: Geodetic, method?: AngularDistanceMethod): Degrees;
/**
* Calculates the distance between two geodetic coordinates.
* @param g The geodetic coordinates to calculate the distance to.
* @param method The method to use for calculating the angular distance. Default is Haversine.
* @returns The distance between the two geodetic coordinates in kilometers.
*/
distance(g: Geodetic, method?: AngularDistanceMethod): Kilometers;
/**
* Calculates the field of view based on the altitude of the Geodetic object.
* @returns The field of view in radians.
*/
fieldOfView(): Radians;
/**
* Determines if the current geodetic coordinate can see another geodetic coordinate.
* @param g The geodetic coordinate to check for visibility.
* @param method The method to use for calculating the angular distance (optional, default is Haversine).
* @returns A boolean indicating if the current coordinate can see the other coordinate.
*/
isInView(g: Geodetic, method?: AngularDistanceMethod): boolean;
}