utility
Class JulianDate

java.lang.Object
  utility.JulianDate

public class JulianDate
extends java.lang.Object

Field Summary

int	day
int	hour
static int	IGREG
double	jd
int	minute
int	month
static int	SEC_IN_DAY
int	second
int	year

Constructor Summary

JulianDate()
Create a JulianDate object with the current day and time

JulianDate(java.util.Date date)

JulianDate(double d)

JulianDate(int day, int month, int year)

JulianDate(int second, int minute, int hour, int day, int month, int year)

Method Summary

static double	convert(int sec, int min, int hour, int day, int month, int year) converts from sec-min-hr-day-mon-yr to julian date.
static double	convert2(int second, int minute, int hour, int day, int month, int year) converts from sec-min-hr-day-mon-yr to julian date.
int	getDay()
int	getHour()
double	getJD()
int	getMinute()
int	getMonth()
int	getSecond()
java.util.Date	getTime() returns a Date object
int	getYear()
void	setJD(double jd)
java.util.Date	toDate() returns a Date object
java.lang.String	toString() returns the decimal julian date as a String
void	updateFields() given a jd, calculates the year, month, day, hour, min, and sec.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

jd

public double jd

day

public int day

month

public int month

year

public int year

hour

public int hour

minute

public int minute

second

public int second

IGREG

public static final int IGREG

See Also:

Constant Field Values

SEC_IN_DAY

public static final int SEC_IN_DAY

See Also:

Constant Field Values

Constructor Detail

JulianDate

public JulianDate()

Create a JulianDate object with the current day and time

JulianDate

public JulianDate(double d)

JulianDate

public JulianDate(int day,
                  int month,
                  int year)

JulianDate

public JulianDate(int second,
                  int minute,
                  int hour,
                  int day,
                  int month,
                  int year)

JulianDate

public JulianDate(java.util.Date date)

Method Detail

convert2

public static double convert2(int second,
                              int minute,
                              int hour,
                              int day,
                              int month,
                              int year)

converts from sec-min-hr-day-mon-yr to julian date. perhaps less accurate than convert, but good for any date

convert

public static double convert(int sec,
                             int min,
                             int hour,
                             int day,
                             int month,
                             int year)

converts from sec-min-hr-day-mon-yr to julian date. This is the converter used internaly. Only good for 1900 -- 2100.

toString

public java.lang.String toString()

returns the decimal julian date as a String

Overrides:

toString in class java.lang.Object

toDate

public java.util.Date toDate()

returns a Date object

getTime

public java.util.Date getTime()

returns a Date object

updateFields

public void updateFields()

given a jd, calculates the year, month, day, hour, min, and sec. changes the field values accordingly

getJD

public double getJD()

getDay

public int getDay()

getMonth

public int getMonth()

getYear

public int getYear()

getHour

public int getHour()

getMinute

public int getMinute()

getSecond

public int getSecond()

setJD

public void setJD(double jd)