A sphere shape. More...

#include <egs_shapes.h>

Inheritance diagram for EGS_SphereShape:

Public Member Functions
	EGS_SphereShape (const string &Name="", EGS_ObjectFactory *f=0)
	Construct a sphere of unit radius about the origin.

	EGS_SphereShape (EGS_Float r, const EGS_Vector &Xo=EGS_Vector(0, 0, 0), const string &Name="", EGS_ObjectFactory *f=0)
	Construct a sphere of radius r with midpoint Xo.

	~EGS_SphereShape ()

EGS_Vector	getPoint (EGS_RandomGenerator *rndm)
	Returns a random point within the sphere.

EGS_Object *	createObject (EGS_Input *inp)

bool	supportsDirectionMethod () const
	Returns `true`. (It is easy to implement the getPointSourceDirection() method for a sphere.)

void	getPointSourceDirection (const EGS_Vector &Xo, EGS_RandomGenerator *rndm, EGS_Vector &u, EGS_Float &wt)
	Sets the direction u by picking a random point uniformly on the sphere surface. More...

EGS_Float	area () const
	Returns the sphere surface area.

Public Member Functions inherited from EGS_BaseShape
	EGS_BaseShape (const string &Name="", EGS_ObjectFactory *f=0)
	Construct a shape named Name.

virtual	~EGS_BaseShape ()
	Destructor. Deletes T if it is not `null`.

virtual EGS_Vector	getRandomPoint (EGS_RandomGenerator *rndm)
	Returns a random 3D vector. More...

void	setTransformation (EGS_Input *inp)
	Set the transformation attached to this shape. More...

void	setTransformation (EGS_AffineTransform *t)
	Set the transformation attached to this shape. More...

const EGS_AffineTransform *	getTransform () const
	Get a pointer to the affine transformation attached to this shape.

virtual void	getNextShapePosition (EGS_RandomGenerator *rndm)

virtual void	updatePosition (EGS_Float time)
	Update the position of the shape if it is in motion.

Public Member Functions inherited from EGS_Object
	EGS_Object (const string &Name="", EGS_ObjectFactory *f=0)
	Create an EGS_Object named Name belonging to the object factory f. More...

	EGS_Object (EGS_Input inp, EGS_ObjectFactory f=0)
	Create an EGS_Object from the information pointed to by inp that belongs to object factory f. More...

const string &	getObjectName () const
	Get the object name.

void	setObjectName (const string &Name)
	Set the object name to Name.

const string &	getObjectType () const
	Get the object type.

void	setName (EGS_Input *inp)
	Set the name of the object from the information provided by inp. More...

int	ref ()
	Increase the reference count to this object.

int	deref ()
	Decrease the reference count to this object.

void	setFactory (EGS_ObjectFactory *f)
	Set the factory to which the object belongs. More...

Protected Attributes
EGS_Float	R
	The sphere radius.

EGS_Vector	xo
	The sphere midpoint.

Protected Attributes inherited from EGS_BaseShape
EGS_AffineTransform *	T
	The affine transformation attached to the shape.

Protected Attributes inherited from EGS_Object
string	name
	The object name.

string	otype
	The object type.

int	nref
	Number of references to the object.

EGS_ObjectFactory *	factory
	The factory this object belongs to.

Additional Inherited Members
Static Public Member Functions inherited from EGS_BaseShape
static EGS_BaseShape *	createShape (EGS_Input *inp)
	Create a shape from the information pointed to by inp. More...

static EGS_BaseShape *	getShape (const string &Name)
	Get a pointer to the shape named Name. More...

Static Public Member Functions inherited from EGS_Object
static string	getUniqueName (const EGS_Object *o=0)
	Create and return a unique object name. More...

static void	deleteObject (EGS_Object *o)
	Delete an object. More...

Detailed Description

A sphere shape.

Samples random points within a sphere or on the spherical surfcace. Specified in the input file via

:start shape:
    type = sphere
    midpoint = Ox, Oy, Oz
    radius = the sphere radius
:stop shape:

Definition at line 502 of file egs_shapes.h.

Constructor & Destructor Documentation

◆ ~EGS_SphereShape()

EGS_SphereShape::~EGS_SphereShape ( )

Destructor. Does nothing.

Definition at line 523 of file egs_shapes.h.

Member Function Documentation

◆ createObject()

EGS_Object * EGS_SphereShape::createObject ( EGS_Input * inp )

virtual

Create a sphere shape from the information pointed to by inp, or null if the information is insufficient.

Reimplemented from EGS_Object.

Definition at line 132 of file egs_shapes.cpp.

References egsWarning, EGS_Input::getInput(), and EGS_Object::setName().

◆ getPointSourceDirection()

void EGS_SphereShape::getPointSourceDirection	(	const EGS_Vector &	Xo,
		EGS_RandomGenerator *	rndm,
		EGS_Vector &	u,
		EGS_Float &	wt
	)

virtual

Sets the direction u by picking a random point uniformly on the sphere surface.

See also: EGS_BaseShape::getPointSourceDirection()

Reimplemented from EGS_BaseShape.

Definition at line 559 of file egs_shapes.h.

References epsilon, EGS_RandomGenerator::getAzimuth(), EGS_RandomGenerator::getUniform(), EGS_Vector::x, EGS_Vector::y, and EGS_Vector::z.

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

/home/rwtownson/EGSnrc/HEN_HOUSE/egs++/egs_shapes.h
/home/rwtownson/EGSnrc/HEN_HOUSE/egs++/egs_shapes.cpp

Public Member Functions