fact.coordinates

Class HorizontalCoordinate

java.lang.Object

fact.coordinates.HorizontalCoordinate

All Implemented Interfaces:

CelestialCoordinate, Serializable

public class HorizontalCoordinate
extends Object
implements CelestialCoordinate

Represents a coordinate in the horizontal coordinate.

Provides a method to transform into the equatorial and camera frame.

Created by maxnoe on 22.05.17.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
double	azimuthRad
double	zenithRad

Fields inherited from interface fact.coordinates.CelestialCoordinate

gstReferenceDateTime

Method Summary

Modifier and Type	Method and Description
static HorizontalCoordinate	fromDegrees(double zenithDeg, double azimuthDeg)
static HorizontalCoordinate	fromRad(double zenithRad, double azimuthRad)
double	getAltitudeDeg()
double	getAltitudeRad()
double	getAzimuthDeg()
double	getAzimuthRad()
double	getZenithDeg()
double	getZenithRad()
double	greatCircleDistanceDeg(HorizontalCoordinate other)
double	greatCircleDistanceRad(HorizontalCoordinate other)
CameraCoordinate	toCamera(HorizontalCoordinate pointingPosition, double focalLength) Transform this horizontal coordinate to the camera frame for the given pointing position and focal length.
EquatorialCoordinate	toEquatorial(ZonedDateTime observationTime, EarthLocation earthLocation) Transform this HorizontalCoordinate into the equatorial coordinate frame for given observation time and location.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface fact.coordinates.CelestialCoordinate

datetimeToGST, greatCircleDistanceDeg, greatCircleDistanceRad

Field Detail

zenithRad

public final double zenithRad

azimuthRad

public final double azimuthRad

Method Detail

fromRad

public static HorizontalCoordinate fromRad(double zenithRad,
                                           double azimuthRad)

fromDegrees

public static HorizontalCoordinate fromDegrees(double zenithDeg,
                                               double azimuthDeg)

greatCircleDistanceRad

public double greatCircleDistanceRad(HorizontalCoordinate other)

greatCircleDistanceDeg

public double greatCircleDistanceDeg(HorizontalCoordinate other)

toEquatorial

public EquatorialCoordinate toEquatorial(ZonedDateTime observationTime,
                                         EarthLocation earthLocation)

Transform this HorizontalCoordinate into the equatorial coordinate frame for given observation time and location.

Implementation of the formulas from https://en.wikipedia.org/wiki/Celestial_coordinate_system#Equatorial_.E2.86.90.E2.86.92_horizontal

Parameters:

observationTime -

earthLocation -

Returns:

HorizontalCoordinate for given time and location;

toCamera

public CameraCoordinate toCamera(HorizontalCoordinate pointingPosition,
                                 double focalLength)

Transform this horizontal coordinate to the camera frame for the given pointing position and focal length.

Parameters:

pointingPosition - Pointing of the telescope

focalLength - focalLength of the telescope

Returns:

coordinate transformed into the camera frame

toString

public String toString()

Overrides:

toString in class Object

getAltitudeRad

public double getAltitudeRad()

getAltitudeDeg

public double getAltitudeDeg()

getZenithRad

public double getZenithRad()

getAzimuthRad

public double getAzimuthRad()

getZenithDeg

public double getZenithDeg()

getAzimuthDeg

public double getAzimuthDeg()