KHolidays::LunarPhase Class Reference

#include <lunarphase.h>

Public Types
enum	Phase {   NewMoon , FirstQuarter , LastQuarter , FullMoon ,   None , WaxingCrescent , WaxingGibbous , WaningGibbous ,   WaningCrescent }

Static Public Member Functions
static Phase	phaseAtDate (const QDate &date)
static QString	phaseName (Phase phase)
static QString	phaseNameAtDate (const QDate &date)

Detailed Description

Represents and manages a Lunar Phase.

A Lunar Phase can be one of the following:

• "new": the moon is not visible; or traditionally: first visible crescent of the Moon. For religious purposes, the new month begins when the first crescent moon can be seen. Thus, it is impossible to be certain in advance of when months will begin; in particular, the exact date on which Ramadan will begin is not known in advance. In Saudi Arabia, observers are sent up in airplanes if the weather is cloudy when the new moon is expected.
• "waxing crescent": between "new" and "first quarter".
• "first quarter": the right 50% of the moon is visible.
• "waxing gibbous": between "first quarter" and "full".
• "full": the moon is fully visible.
• "waning gibbous": between "full" and "last quarter".
• "last quarter": the left 50% of the moon is visible.
• "waning crescent": between "last quarter" and "new".

A very good description of the lunar phases can be read at the Wikipedia, https://en.wikipedia.org/wiki/Lunar_phase

Definition at line 45 of file lunarphase.h.

Member Enumeration Documentation

Phase

enum KHolidays::LunarPhase::Phase

Phases of the moon, in traditional English notation.

The phase None is used only as an error indicator, for instance in phase().

Enumerator
NewMoon	New moon phase.
FirstQuarter	First quarter of moon phase.
LastQuarter	Last quarter of moon phase.
FullMoon	Full moon phase.
None	Indication for error.
WaxingCrescent	Since 5.94
WaxingGibbous	Since 5.94
WaningGibbous	Since 5.94
WaningCrescent	Since 5.94

Definition at line 54 of file lunarphase.h.

Member Function Documentation

phaseAtDate()

LunarPhase::Phase LunarPhase::phaseAtDate ( const QDate & date )

static

Return the lunar phase for the specified Gregorian date.

The enum 'None' is returned if one of the supported phases does not occur on the date.

Parameters

date	compute the lunar phase for the specified Gregorian date.

Definition at line 51 of file lunarphase.cpp.

phaseName()

QString LunarPhase::phaseName ( LunarPhase::Phase phase )

static

Return the string representation of phase.

Parameters

phase

the lunar phase.

Definition at line 24 of file lunarphase.cpp.

phaseNameAtDate()

QString LunarPhase::phaseNameAtDate ( const QDate & date )

static

Return the lunar phase as a text string for the specified date.

A null string is returned if one of the supported phases does not occur on the date.

Parameters

date	compute the lunar phase for the specified Gregorian date.

Definition at line 19 of file lunarphase.cpp.

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The documentation for this class was generated from the following files:

• lunarphase.h
• lunarphase.cpp