MinorPlanet Class Reference

#include <MinorPlanet.hpp>

List of all members.

Public Member Functions
	MinorPlanet (const QString &englishName, int flagLighting, double radius, double oblateness, Vec3f color, float albedo, const QString &texMapName, posFuncType _coordFunc, void *userDataPtr, OsculatingFunctType *osculatingFunc, bool closeOrbit, bool hidden)
virtual QString	getInfoString (const StelCore *core, const InfoStringGroup &flags) const
	Get a string with data about the MinorPlanet.
virtual float	getVMagnitude (const StelCore *core, bool withExtinction=false) const
	Return object's apparent V magnitude as seen from observer.
virtual void	translateName (StelTranslator &trans)
	sets the nameI18 property with the appropriate translation.
void	setMinorPlanetNumber (int number)
	set the minor planet's number, if any.
void	setProvisionalDesignation (QString designation)
	sets a provisional designation.
void	setAbsoluteMagnitudeAndSlope (double magnitude, double slope)
	sets absolute magnitude (H) and slope parameter (G).
void	setSemiMajorAxis (double value)
	set value for semi-major axis in AU
Static Public Member Functions
static QString	renderProvisionalDesignationinHtml (QString plainText)
	renders the subscript in a minor planet provisional designation with HTML.

---

Detailed Description

Author:

Bogdan Marinov

This class implements a minor planet (an asteroid).

There are two main reasons for having a separate class from Planet:

• visual magnitude calculation (asteroids use the H,G system; Stellarium's default algorithm is not easily applied to asteroids);
• support for minor planet numbers and provisional designations.

Some of the code in this class is re-used from the parent Planet class.

---

Member Function Documentation

virtual QString MinorPlanet::getInfoString	(	const StelCore *	core,
		const InfoStringGroup &	flags
	)			const [virtual]

Get a string with data about the MinorPlanet.

Asteroids support the following InfoStringGroup flags:

• Name
• Magnitude
• RaDec
• AltAzi
• Distance
• Size
• PlainText

  Parameters:

  	core	the StelCore object
  	flags	a set of InfoStringGroup items to include in the return value.

  Returns:

  a QString containing an HMTL encoded description of the MinorPlanet.

Reimplemented from Planet.

virtual float MinorPlanet::getVMagnitude	(	const StelCore *	core,
		bool	withExtinction = false
	)			const [virtual]

Return object's apparent V magnitude as seen from observer.

Reimplemented from Planet.

static QString MinorPlanet::renderProvisionalDesignationinHtml

(

QString

plainText

)

[static]

renders the subscript in a minor planet provisional designation with HTML.

Returns:

an emtpy string if the source string is not a provisional designation.

void MinorPlanet::setAbsoluteMagnitudeAndSlope	(	double	magnitude,
		double	slope
	)

sets absolute magnitude (H) and slope parameter (G).

These are the parameters in the IAU's two-parameter magnitude system for minor planets. They are used to calculate the apparent magnitude at different phase angles.

void MinorPlanet::setMinorPlanetNumber

(

int

number

)

set the minor planet's number, if any.

The number should be specified as an additional parameter, as englishName is passed as a constant to Planet's constructor. The number can be set only once. Any further calls of this function will have no result.

void MinorPlanet::setProvisionalDesignation

(

QString

designation

)

sets a provisional designation.

At the moment, the only role is for it to be displayed in the info field.

void MinorPlanet::setSemiMajorAxis

(

double

value

)

set value for semi-major axis in AU

virtual void MinorPlanet::translateName

(

StelTranslator &

trans

)

[virtual]

sets the nameI18 property with the appropriate translation.

Function overriden to handle the problem with name conflicts.

Reimplemented from Planet.