ArchaeoLines Plug-in

Data Structures
class	ArchaeoLinesDialog
	Main window of the ArchaeoLines plug-in. More...
class	SkyLine
	GridLinesMgr.cpp at V0.13.2, but with small-circle drawing. More...

Detailed Description

A tool for archaeo-/ethnoastronomical alignment studies.

The ArchaeoLines plugin displays any combination of declination arcs most relevant to archaeo- or ethnoastronomical studies. Of course, principles used in this context are derived from natural observations, and many of these declinations are still important in everyday astronomy.

1. Declinations of equinoxes (i.e. equator) and the solstices
2. Declinations of the crossquarter days (days right between solstices and equinoxes)
3. Declinations of the Major Lunar Standstills
4. Declinations of the Minor Lunar Standstills
5. Declination of the Zenith passage
6. Declination of the Nadir passage
7. Declination of the currently selected object
8. Current declination of the sun
9. Current declination of the moon
10. Current declination of a naked-eye planet

Some religions, most notably Islam, adhere to a practice of observing a prayer direction towards a particular location. Azimuth lines (vertical semicircles from zenith to nadir) for two locations can be shown. Default locations are Mecca (Kaaba) and Jerusalem. The directions are computed based on spherical trigonometry on a spherical Earth. In addition, up to 2 custom azimuth lines, and up to 2 custom declination lines can be drawn, also with customized labels.

The lunar lines include horizon parallax effects. There are two lines each drawn, for maximum and minimum distance of the moon. Note that declination of the moon at the major standstill can exceed the indicated limits if it is high in the sky due to parallax effects.

It may be very instructive to let the time run quite fast and observe the line of "current moon" swinging between its north and south limits each month. These limits grow and shrink between the Major and Minor Standstills.

The sun likewise swings between the solstices. Over centuries, the solstice declinations very slightly move as well.

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Data Structure Documentation

class ArchaeoLinesDialog

Public Slots
void	retranslate ()
void	setEquinoxColor (QColor color)
void	setSolsticeColor (QColor color)
void	setCrossquarterColor (QColor color)
void	setMajorStandstillColor (QColor color)
void	setMinorStandstillColor (QColor color)
void	setZenithPassageColor (QColor color)
void	setNadirPassageColor (QColor color)
void	setCurrentSunColor (QColor color)
void	setCurrentMoonColor (QColor color)
void	setCurrentPlanetColor (QColor color)
void	setSelectedObjectColor (QColor color)
void	setGeographicLocation1Color (QColor color)
void	setGeographicLocation2Color (QColor color)
void	setCustomAzimuth1Color (QColor color)
void	setCustomAzimuth2Color (QColor color)
void	setCustomDeclination1Color (QColor color)
void	setCustomDeclination2Color (QColor color)
void	askEquinoxColor ()
void	askSolsticeColor ()
void	askCrossquarterColor ()
void	askMajorStandstillColor ()
void	askMinorStandstillColor ()
void	askZenithPassageColor ()
void	askNadirPassageColor ()
void	askCurrentSunColor ()
void	askCurrentMoonColor ()
void	askCurrentPlanetColor ()
void	askSelectedObjectColor ()
void	askGeographicLocation1Color ()
void	askGeographicLocation2Color ()
void	askCustomAzimuth1Color ()
void	askCustomAzimuth2Color ()
void	askCustomDeclination1Color ()
void	askCustomDeclination2Color ()
Public Slots inherited from StelDialog
virtual void	retranslate ()=0
	Retranslate the content of the dialog. More...
void	setVisible (bool)
	On the first call with "true" populates the window contents.
void	close ()
	Closes the window (the window widget is not deleted, just not visible).
void	handleMovedTo (QPoint newPos)
	Adds dialog location to config.ini; should be connected in createDialogContent()
virtual void	handleDialogSizeChanged (QSizeF size)
	Stores dialog sizes into config.ini; should be connected from the proxy. More...
QString	getDialogName ()
Protected Member Functions
void	createDialogContent ()
	Initialize the dialog widgets and connect the signals/slots.

Additional Inherited Members
Signals inherited from StelDialog
void	visibleChanged (bool)
Public Member Functions inherited from StelDialog
	StelDialog (QString dialogName="Default", QObject *parent=Q_NULLPTR)
bool	visible () const
	Returns true if the dialog contents have been constructed and are currently shown.
Static Protected Member Functions inherited from StelDialog
static void	connectCheckBox (QAbstractButton *checkBox, const QString &actionName)
	Helper function to connect a checkbox to the StelAction with the specified name.
static void	connectCheckBox (QAbstractButton *checkBox, StelAction *action)
	Helper function to connect a checkbox to the given StelAction.
static void	connectIntProperty (QSpinBox *spinBox, const QString &propName)
	Helper function to connect a QSpinBox to an integer StelProperty. More...
static void	connectIntProperty (QComboBox *comboBox, const QString &propName)
	Helper function to connect a QComboBox to an integer StelProperty. More...
static void	connectIntProperty (QSlider *slider, const QString &propName, int minValue, int maxValue)
	Helper function to connect a QSlider to an double or float StelProperty. More...
static void	connectDoubleProperty (QDoubleSpinBox *spinBox, const QString &propName)
	Helper function to connect a QDoubleSpinBox to an double or float StelProperty. More...
static void	connectDoubleProperty (QSlider *slider, const QString &propName, double minValue, double maxValue)
	Helper function to connect a QSlider to an double or float StelProperty. More...
static void	connectBoolProperty (QAbstractButton *checkBox, const QString &propName)
	Helper function to connect a checkbox to a bool StelProperty. More...
Protected Attributes inherited from StelDialog
QWidget *	dialog
	The main dialog.
class CustomProxy *	proxy
QString	dialogName
	The name should be set in derived classes' constructors and can be used to store and retrieve the panel locations.
Properties inherited from StelDialog
bool	visible

class SkyLine

Author

Georg Zotti