StepCore::GravitationForce Class Reference

#include <gravitation.h>

Inheritance diagram for StepCore::GravitationForce:

Public Member Functions
	GravitationForce (double gravitationConst=Constants::Gravitational)
void	calcForce (bool calcVariances)
double	gravitationConst () const
GravitationForceErrors *	gravitationForceErrors ()
void	setGravitationConst (double gravitationConst)
Public Member Functions inherited from StepCore::Item
	Item (const QString &name=QString())
	Item (const Item &item)
virtual	~Item ()
Color	color () const
void	deleteObjectErrors ()
ItemGroup *	group () const
ObjectErrors *	objectErrors ()
Item &	operator= (const Item &item)
void	setColor (Color color)
virtual void	setGroup (ItemGroup *group)
virtual void	setWorld (World *world)
ObjectErrors *	tryGetObjectErrors () const
World *	world () const
virtual void	worldItemRemoved (Item *item STEPCORE_UNUSED)
Public Member Functions inherited from StepCore::Object
	Object (const QString &name=QString())
virtual	~Object ()
const QString &	name () const
void	setName (const QString &name)
Public Member Functions inherited from StepCore::Force
virtual	~Force ()

Protected Member Functions
ObjectErrors *	createObjectErrors ()

Protected Attributes
double	_gravitationConst
Protected Attributes inherited from StepCore::Object
QString	_name

Detailed Description

Newton gravitational force.

The force acts between pairs of massive bodies (currently only Particle) and equals:

where:
is GravitationForce::gravitationConst
and is Particle::mass of first and second body
is difference of Particle::position of the first and second body

Todo:

Add interface for massive bodies, support bodies with distributed mass

Definition at line 80 of file gravitation.h.

Constructor & Destructor Documentation

StepCore::GravitationForce::GravitationForce

(

double

gravitationConst = Constants::Gravitational

)

Constructs GravitationForce.

Definition at line 58 of file gravitation.cc.

Member Function Documentation

void StepCore::GravitationForce::calcForce ( bool  calcVariances )

virtual

Calculate force.

Bodies can be accessed through this->world()->bodies()

Implements StepCore::Force.

Definition at line 65 of file gravitation.cc.

ObjectErrors* StepCore::GravitationForce::createObjectErrors ( )

inlineprotectedvirtual

Creates specific ObjectErrors-derived class (to be reimplemented in derived classes)

Reimplemented from StepCore::Item.

Definition at line 100 of file gravitation.h.

double StepCore::GravitationForce::gravitationConst ( ) const

inline

Get gravitational constant.

Definition at line 91 of file gravitation.h.

GravitationForceErrors* StepCore::GravitationForce::gravitationForceErrors ( )

inline

Get (and possibly create) GravitationForceErrors object.

Definition at line 96 of file gravitation.h.

void StepCore::GravitationForce::setGravitationConst ( double  gravitationConst )

inline

Set gravitational constant.

Definition at line 93 of file gravitation.h.

Member Data Documentation

double StepCore::GravitationForce::_gravitationConst

protected

Definition at line 102 of file gravitation.h.

---

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

• gravitation.h
• gravitation.cc