casa::Galaxy Class Reference

Simple class to represent a Galaxy as a collection of Stars. More...

#include <Galaxy.h>

List of all members.

Public Types
enum	PLOT_MODE {   POSITION,   VELOCITY }
Public Member Functions
	Galaxy (Vector< Double > &position, Vector< Double > &velocity, Double mass, Double size, uInt numStars, uInt numRings, Double inclination, Double positionAngle, Int xSize, Int ySize)
	Constructor.
	~Galaxy ()
	Destructor.
void	computeStep (List< void * > &galaxyList, Double timeStep, Double dampingFactor=1.0)
	Compute a new position, applying the force of the Galaxies in the List but do not update current position and velocity.
void	update ()
	update position and velocity to new value
void	applyForceToStars (List< void * > &galaxyList, Double timeStep, Double dampingFactor)
	Compute a new position for the Stars in this Galaxy.
void	rotate (Matrix< Double > &rotMatrix)
	Rotate position and velocity.
void	draw (PixelCanvas *pixelCanvas)
	Draw the Galaxy on the PixelCanvas.
Double	force (Double distance)
	magnitude of the force for this galaxy
Double	getMass ()
	Return the Mass of the Galaxy.
Vector< Double > &	getPosition ()
	Return the position of the Galaxy.
Vector< Double > &	getVelocity ()
	Return the Velocity of the Galaxy.
void	setPlotMode (Galaxy::PLOT_MODE plotMode)
	Set the plot mode.
void	setScale (Int xSize, Int ySize)
Private Attributes
Double	itsMass
	The mass of the Galaxy.
Double	itsSize
	its size
Vector< Double >	itsPosition
	The position of the Galaxy.
Vector< Double >	itsVelocity
	The velocity of the Galaxy.
Vector< Double >	newPosition
	The new computed position of the Galaxy.
Vector< Double >	newVelocity
	The new computed velocity of the Galaxy.
List< void * >	itsStarList
	The list of Stars in this Galaxy.
ListIter< void * > *	itsStarListIter
	and an iterator for this List
Vector< Int >	oldPosition
Vector< Int >	itsOffset
	Last offset applied to itsPosition.
Vector< Int >	itsPlotPosition
	Last offset applied to itsPosition.
Int	itsXSize
Int	itsYSize
uInt	itsDrawList
	Number of the draw list for the current PixelCanvas.
PixelCanvas *	itsPixelCanvas
Galaxy::PLOT_MODE	plotMode
Bool	changedPlotMode

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Detailed Description

Simple class to represent a Galaxy as a collection of Stars.

Definition at line 44 of file Galaxy.h.

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Member Enumeration Documentation

enum casa::Galaxy::PLOT_MODE

Enumerator:

POSITION
VELOCITY

Definition at line 48 of file Galaxy.h.

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Constructor & Destructor Documentation

casa::Galaxy::Galaxy	(	Vector< Double > &	position,
		Vector< Double > &	velocity,
		Double	mass,
		Double	size,
		uInt	numStars,
		uInt	numRings,
		Double	inclination,
		Double	positionAngle,
		Int	xSize,
		Int	ySize
	)

Constructor.

casa::Galaxy::~Galaxy

(

)

Destructor.

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Member Function Documentation

void casa::Galaxy::applyForceToStars	(	List< void * > &	galaxyList,
		Double	timeStep,
		Double	dampingFactor
	)

Compute a new position for the Stars in this Galaxy.

void casa::Galaxy::computeStep	(	List< void * > &	galaxyList,
		Double	timeStep,
		Double	dampingFactor = 1.0
	)

Compute a new position, applying the force of the Galaxies in the List but do not update current position and velocity.

void casa::Galaxy::draw

(

PixelCanvas *

pixelCanvas

)

Draw the Galaxy on the PixelCanvas.

Double casa::Galaxy::force

(

Double

distance

)

magnitude of the force for this galaxy

Double casa::Galaxy::getMass

(

)

Return the Mass of the Galaxy.

Vector<Double>& casa::Galaxy::getPosition

(

)

Return the position of the Galaxy.

Vector<Double>& casa::Galaxy::getVelocity

(

)

Return the Velocity of the Galaxy.

void casa::Galaxy::rotate

(

Matrix< Double > &

rotMatrix

)

Rotate position and velocity.

void casa::Galaxy::setPlotMode

(

Galaxy::PLOT_MODE

plotMode

)

Set the plot mode.

void casa::Galaxy::setScale	(	Int	xSize,
		Int	ySize
	)

void casa::Galaxy::update

(

)

update position and velocity to new value

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Member Data Documentation

Bool casa::Galaxy::changedPlotMode [private]

Definition at line 139 of file Galaxy.h.

uInt casa::Galaxy::itsDrawList [private]

Number of the draw list for the current PixelCanvas.

Definition at line 133 of file Galaxy.h.

Double casa::Galaxy::itsMass [private]

The mass of the Galaxy.

Definition at line 99 of file Galaxy.h.

Vector<Int> casa::Galaxy::itsOffset [private]

Last offset applied to itsPosition.

Definition at line 125 of file Galaxy.h.

PixelCanvas* casa::Galaxy::itsPixelCanvas [private]

Definition at line 135 of file Galaxy.h.

Vector<Int> casa::Galaxy::itsPlotPosition [private]

Last offset applied to itsPosition.

Definition at line 127 of file Galaxy.h.

Vector<Double> casa::Galaxy::itsPosition [private]

The position of the Galaxy.

Definition at line 105 of file Galaxy.h.

Double casa::Galaxy::itsSize [private]

its size

Definition at line 102 of file Galaxy.h.

List<void *> casa::Galaxy::itsStarList [private]

The list of Stars in this Galaxy.

Definition at line 118 of file Galaxy.h.

ListIter<void *>* casa::Galaxy::itsStarListIter [private]

and an iterator for this List

Definition at line 121 of file Galaxy.h.

Vector<Double> casa::Galaxy::itsVelocity [private]

The velocity of the Galaxy.

Definition at line 108 of file Galaxy.h.

Int casa::Galaxy::itsXSize [private]

Definition at line 129 of file Galaxy.h.

Int casa::Galaxy::itsYSize [private]

Definition at line 130 of file Galaxy.h.

Vector<Double> casa::Galaxy::newPosition [private]

The new computed position of the Galaxy.

Definition at line 112 of file Galaxy.h.

Vector<Double> casa::Galaxy::newVelocity [private]

The new computed velocity of the Galaxy.

Definition at line 115 of file Galaxy.h.

Vector<Int> casa::Galaxy::oldPosition [private]

Definition at line 123 of file Galaxy.h.

Galaxy::PLOT_MODE casa::Galaxy::plotMode [private]

Definition at line 137 of file Galaxy.h.

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

• code/display/DisplayDatas/Galaxy.h