AbstractHJDConverter

java.lang.Object

org.aavso.tools.vstar.util.date.AbstractHJDConverter

Direct Known Subclasses:: B1950HJDConverter, J2000HJDConverter

public abstract class AbstractHJDConverter extends Object

All HJD converters must extend this base class which also acts as a Factory Method to select a converter for a specified epoch.

Constructor Summary

Constructors

Constructor

Description

AbstractHJDConverter()
Method Summary

Modifier and Type

Method

Description

abstract double

convert(double jd, RAInfo ra, DecInfo dec)

Given a JD, RA, and Dec, return HJD.

static AbstractHJDConverter

getInstance(EpochType epoch)

Factory method to return suitable converter for a given epoch.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- AbstractHJDConverter
  
  public AbstractHJDConverter()
Method Details
- getInstance
  
  public static AbstractHJDConverter getInstance(EpochType epoch)
  
  Factory method to return suitable converter for a given epoch.
  
  Returns:
  
  The HJD converter for the specified epoch.
- convert
  
  public abstract double convert(double jd, RAInfo ra, DecInfo dec)
  
  Given a JD, RA, and Dec, return HJD.
  
  Parameters:
  
  jd - The Julian Date to be converted.
  
  ra - The right ascension coordinate.
  
  dec - The declination coordinate.
  
  Returns:
  
  The corresponding Heliocentric Julian Date.