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Date Class Function Manual |
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Date Class Function Manual |
Purpose
To report the current day of the Date object.
Please pay attention that the time in the Date object is considered the GMT (Greenwich Mean Time) in all calculation.
Class
Date
Usage
{int} ret = object.DAY()
Example:
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->d = Date(1960,12,9,0.00) ->print d 9/12/1960 Time: 0 00 00.0000000 ->d.day() |
See also (class function)
month, year, time
Purpose
To compute the day of week of the Date object.
Please pay attention that the time in the Date object is considered the GMT (Greenwich Mean Time) in all calculation.
The result in a number representing day of week, as follows.
1 = Sunday
2 = Monday
3 = Tuesday
4 = Wednesday
5 = Thursday
6 = Friday
7 = Saturday
Class
Date
Usage
{double} ret = object.DOW()
Example:
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->d = Date(1960,12,9,0.00) ->print d 9/12/1960 Time: 0 00 00.0000000 ->d.dow() |
See also (class function)
jd
Purpose
To initialize a Date object.
Please pay attention that the time in the Date object is considered the GMT (Greenwich Mean Time) in all calculation.
Class
Date
Usage
{void} ret = object.DOW({int} argm1, {int} argm2,{int} argm3, {double} argm4)
argm1 = year e.g. 1960
argm2 = month e.g. 12 (means December)
argm3 = day e.g. 9
argm4 = time e.g. 14.5 means 14h 30min 0.00 sec
Example:
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->d = Date() ->d.init(1960,12,9,deg(12.30456789)) ->print d 9/12/1960 Time: 12 30 45.6789000 -> |
See also (class function)
day, month, year, time
JD2DATE
Purpose
To compute and make Date object from a Julian Date numbert. The result is stored back to the calling Date object.
Usage
{void} ret = JD2DATE({int} argm1)
argm1 = integer number, must be between 2415080 (Mar 1, 1900) and 2488070 (Jan 1, 2100).
Example:
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->D1 = Date() ->D1.jd2date(2420005) ->print D1 25/8/1993 time : 12 00 00.0000 |
See also
jd
JD
Purpose
To compute the julian day of the Date object.
Please pay attention that the time in the Date object is considered the GMT (Greenwich Mean Time) in all calculation.
Algorithm is from Hofmann-Wellenhof, B et al (1997) Global Positioning System Theory and Practice, Springer Wien, New York.
Class
Date
Usage
{double} ret = object.JD()
Example:
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->d = Date() ->d.init(1960,12,9,deg(12.30456789)) ->print d 9/12/1960 Time: 12 30 45.6789000 ->d.jd() ans = 2437278.02136 -> |
See also (class function)
dow
Purpose
To report the current month of the Date object.
Please pay attention that the time in the Date object is considered the GMT (Greenwich Mean Time) in all calculation.
Class
Date
Usage
{int} ret = object.MONTH()
Example:
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->d = Date() ->d.init(1960,12,9,deg(12.30456789)) ->print d 9/12/1960 Time: 12 30 45.6789000 ->d.month() ans = 12 -> |
See also (class function)
year, day, time
Purpose
To report the current time of the Date object.
Please pay attention that the time in the Date object is considered the GMT (Greenwich Mean Time) in all calculation.
Class
Date
Usage
{double} ret = object.TIME()
Example:
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->d = Date() ->d.init(1960,12,9,deg(12.30456789)) ->print d 9/12/1960 Time: 12 30 45.6789000 ->d.time() ans = 12.51269 -> |
See also (class function)
year month, day
Purpose
To report the current year of the Date object.
Please pay attention that the time in the Date object is considered to be GMT (Greenwich Mean Time) in all calculation.
Class
Date
Usage
{int} ret = object.YEAR()
Example:
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->d = Date() ->d.init(1960,12,9,deg(12.30456789)) ->print d 9/12/1960 Time: 12 30 45.6789000 ->d.year() ans = 1960 -> |
See also (class function)
month, day, time