ParticleSet2 Class Reference

Core particle set in the plane. More...

#include <particle.h>

Inheritance diagram for ParticleSet2:

Public Member Functions
	ParticleSet2 ()
	Empty constructor.
	ParticleSet2 (const double &)
	Create an empty set of particles. More...
	ParticleSet2 (const Vector2 &, const double &)
	Create a set of particles. More...
	ParticleSet2 (const QVector< Vector2 > &, const double &)
	Create a set of particles. More...
Circle2	At (int) const
	Get the k-th particle. More...
double	Radius () const
	Return the radius of the particles.
QVector< Vector2 >	GetCenters () const
	Return the centers of the particles.
Circle2	GetCircle () const
	Computes the bounding circle of the centers of the particles. More...
bool	Intersect (const Circle2 &) const
	Check the intersection between the cluster and a circle. More...
bool	Intersect (const Box2 &) const
	Check the intersection between the cluster and a box. More...
void	Draw (QGraphicsScene &) const
	Draw the set of particles. More...

Protected Attributes
QVector< Vector2 >	points
	Set of particles.
double	r
	Radius of particles.

Detailed Description

Core particle set in the plane.

The particles have the same radius.

Constructor & Destructor Documentation

ParticleSet2() [1/3]

ParticleSet2::ParticleSet2 ( const double &  r )

explicit

Create an empty set of particles.

Parameters

r

Radius.

ParticleSet2() [2/3]

ParticleSet2::ParticleSet2 ( const Vector2 &  p, const double &  r  )

explicit

Create a set of particles.

Parameters

r	Radius.
p	First particle.

ParticleSet2() [3/3]

ParticleSet2::ParticleSet2 ( const QVector< Vector2 > &  s, const double &  r  )

explicit

Create a set of particles.

Parameters

r	Radius.
s	Set of particles.

Member Function Documentation

At()

Circle2 ParticleSet2::At

(

int

k

)

const

Get the k-th particle.

Parameters

k

Index.

Draw()

void ParticleSet2::Draw

(

QGraphicsScene &

scene

)

const

Draw the set of particles.

Parameters

scene

Graphics scene.

GetCircle()

Circle2 ParticleSet2::GetCircle

(

)

const

Computes the bounding circle of the centers of the particles.

The exact embedding circle can be computed as:

ParticleSet2 particles;
Circle2 c=particles.GetCircle().Extended(particles.Radius());

Parameters

circle

The circle.

Intersect() [1/2]

bool ParticleSet2::Intersect

(

const Box2 &

box

)

const

Check the intersection between the cluster and a box.

Parameters

box

The box.

Intersect() [2/2]

bool ParticleSet2::Intersect

(

const Circle2 &

circle

)

const

Check the intersection between the cluster and a circle.

Parameters

circle

The circle.