PersianArithmeticCalendar Class Reference

This class implements an algorithmical intercalation scheme for the Persian calendar of 1925. More...

#include <PersianArithmeticCalendar.hpp>

Public Slots
virtual void	retranslate () Q_DECL_OVERRIDE
virtual void	setJD (double JD) Q_DECL_OVERRIDE
	Set a calendar date from the Julian day number.
virtual void	setDate (QVector< int > parts) Q_DECL_OVERRIDE
	set date from a vector of calendar date elements sorted from the largest to the smallest. More...
virtual QStringList	getDateStrings () const Q_DECL_OVERRIDE
	get a stringlist of calendar date elements sorted from the largest to the smallest. More...
virtual QString	getFormattedDateString () const Q_DECL_OVERRIDE
	get a formatted complete string for a date
Public Slots inherited from Calendar
virtual void	retranslate ()=0
	Translate e.g. stringlists of part names.
virtual void	setJD (double JD)=0
	Set a calendar date from the Julian day number Subclasses set JD and compute the parts and possibly other data This triggers the partsChanged() signal.
virtual double	getJD () const
	Get Julian day number from a calendar date.
virtual void	setDate (QVector< int > parts)=0
	set date from a vector of calendar date elements sorted from the largest to the smallest. More...
virtual QVector< int >	getDate () const
	get a vector of calendar date elements sorted from the largest to the smallest. More...
virtual QStringList	getDateStrings () const =0
	get a stringlist of calendar date elements sorted from the largest to the smallest. More...
virtual QString	getFormattedDateString () const
	get a formatted complete string for a date. The default implementation just concatenates all strings from getDateStrings() with a space in between.

Public Member Functions
	PersianArithmeticCalendar (double jd)
Public Member Functions inherited from Calendar
	Calendar (double jd)
int	rdCorrSum (QVector< int >factors, int corr)

Static Public Member Functions
static bool	isLeap (int pYear)
	returns true for leap years
static int	fixedFromPersianArithmetic (QVector< int > persian)
	find RD number for date in the Persian arithmetic calendar
static QVector< int >	persianArithmeticFromFixed (int rd)
	find date in the Persian calendar from RD number
Static Public Member Functions inherited from Calendar
static double	momentFromJD (double jd, bool respectUTCoffset=true)
	Interfacing function from Reingold/Dershowitz: Calendrical Calculations Returns a "moment" in RD that represents JD. More...
static int	fixedFromMoment (double rd)
static double	timeFromMoment (double rd)
static int	fixedFromJD (double jd, bool respectUTCoffset=true)
	Interfacing function from Reingold/Dershowitz: Calendrical Calculations Returns a fixed date in RD that represents noon of JD. More...
static double	momentFromMJD (double mjd)
static double	jdFromMoment (double rd, bool respectUTCoffset=true)
	interfacing function from Reingold/Dershowitz: Calendrical Calculations Returns a JD from an RD "moment" (including fractions of day) Stellarium extension: optionally includes local time zone offset. More...
static double	jdFromFixed (double rd, bool respectUTCoffset=true)
	interfacing function from Reingold/Dershowitz: Calendrical Calculations Returns a JD from an RD "moment" (including fractions of day) Stellarium extension: optionally includes local time zone offset. More...
static double	mjdFromFixed (double rd)
static int	dayOfWeekFromFixed (int rd)
	weekday from RD date. CC.UE(1.60).
static int	kdayOnOrBefore (const Calendar::Day k, const int rd)
	@Returns the R.D. of the nearest weekday k on or before rd
static int	kdayOnOrAfter (const Calendar::Day k, const int rd)
	@Returns the R.D. of the nearest weekday k on or after rd
static int	kdayNearest (const Calendar::Day k, const int rd)
	@Returns the R.D. of the nearest weekday k around rd
static int	kdayBefore (const Calendar::Day k, const int rd)
	@Returns the R.D. of the nearest weekday k before rd
static int	kdayAfter (const Calendar::Day k, const int rd)
	@Returns the R.D. of the nearest weekday k after rd
static double	modInterval (double x, double a, double b)
	Interval modulus, CC.UE 1.24. More...
static int	modInterval (int x, int a, int b)
	Interval modulus, CC.UE 1.24: This EXCLUDES the upper limit! Use StelUtils::amod(x, b) for CC's (x)mod[1..b].
static int	rdCorrSum (QVector< int >parts, QVector< int >factors, int corr)
	Reingold-Dershowitz CC.UE 1.48.
static QVector< int >	toRadix (int num, QVector< int >radix)
	Split integer to mixed-radix vector. Reingold-Dershowitz CC.UE 1.42.

Static Protected Attributes
static const int	persianEpoch
static QMap< int, QString >	weekDayNames
	RD of .
static QMap< int, QString >	monthNames

Additional Inherited Members
Public Types inherited from Calendar
enum	Day {   sunday = 0, monday, tuesday, wednesday,   thursday, friday, saturday }
	enum from CC.UE-ch1.12.
enum	Season { spring = 0, summer = 90, autumn = 180, winter = 270 }
Signals inherited from Calendar
void	partsChanged (QVector< int > parts)
void	jdChanged (double jd)
Static Public Attributes inherited from Calendar
constexpr static const double	J2000 =2451545.0
constexpr static const double	jdEpoch =-1721424.5
constexpr static const double	mjdEpoch =678576.0
constexpr static const int	bogus =-1000000
Protected Attributes inherited from Calendar
double	JD
QVector< int >	parts
	date expressed as JD(UT), including day fraction (ready to interact with the main application)

Detailed Description

The leap year cycle is 2820 years long.

Member Function Documentation

getDateStrings

virtual QStringList PersianArithmeticCalendar::getDateStrings ( ) const

virtualslot

Year, Month, MonthName, Day, DayName

setDate

virtual void PersianArithmeticCalendar::setDate ( QVector< int >  parts )

virtualslot

Year-Month[1...13]-Day[1...30]