com.ibm.icu.impl

Class CalendarAstronomer.Horizon

java.lang.Object

com.ibm.icu.impl.CalendarAstronomer.Horizon

Enclosing class:

CalendarAstronomer

public static final class CalendarAstronomer.Horizon
extends Object

Represents the position of an object in the sky relative to the local horizon. The Altitude represents the object's elevation above the horizon, with objects below the horizon having a negative altitude. The Azimuth is the geographic direction of the object from the observer's position, with 0 representing north. The azimuth increases clockwise from north.

Note that Horizon objects are immutable and cannot be modified once they are constructed. This allows them to be passed and returned by value without worrying about whether other code will modify them.

See Also:

CalendarAstronomer.Ecliptic, CalendarAstronomer.Equatorial

Field Summary

Fields

Modifier and Type	Field and Description
double	altitude The object's altitude above the horizon, in radians.
double	azimuth The object's direction, in radians clockwise from north.

Constructor Summary

Constructors

Constructor and Description
Horizon(double alt, double azim) Constructs a Horizon coordinate object.

Method Summary

Modifier and Type	Method and Description
String	toString() Return a string representation of this object, with the angles measured in degrees.

Methods inherited from class java.lang.Object

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

Field Detail

altitude

public final double altitude

The object's altitude above the horizon, in radians.

azimuth

public final double azimuth

The object's direction, in radians clockwise from north.

Constructor Detail

Horizon

public Horizon(double alt,
               double azim)

Constructs a Horizon coordinate object.

Parameters:

alt - The altitude, measured in radians above the horizon.

azim - The azimuth, measured in radians clockwise from north.

Method Detail

toString

public String toString()

Return a string representation of this object, with the angles measured in degrees.

Overrides:

toString in class Object

Returns:

a printable representation of this object.