A set of concentric spheres. More...

#include <egs_spheres.h>

Inheritance diagram for EGS_cSpheres:

Public Types
enum	DIRS { RDIR }

Public Member Functions
	EGS_cSpheres (int ns, const EGS_Float *radius, const EGS_Vector &position, const string &Name="")

int	inside (const EGS_Vector &x)

bool	isInside (const EGS_Vector &x)

int	isWhere (const EGS_Vector &x)

EGS_Float	howfarToOutside (int ireg, const EGS_Vector &x, const EGS_Vector &u)

int	howfar (int ireg, const EGS_Vector &x, const EGS_Vector &u, EGS_Float &t, int newmed=0, EGS_Vector normal=0)

EGS_Float	hownear (int ireg, const EGS_Vector &x)

int	getMaxStep () const

const string &	getType () const

void	printInfo () const

EGS_Float	getBound (int idir, int ind)
	Implement getBound for spherical regions.

int	getNRegDir (int dir)
	Implement geNRegDir for spherical regions.

EGS_Float	getVolume (int ireg)
	Implement getVolume for spherical regions.

Public Member Functions inherited from EGS_BaseGeometry
	EGS_BaseGeometry (const string &Name)
	Construct a geometry named Name. More...

virtual	~EGS_BaseGeometry ()
	Destructor. More...

bool	isConvex () const
	Is the geometry convex? More...

virtual void	getNextGeom (EGS_RandomGenerator *rndm)

int	regions () const
	Returns the number of local regions in this geometry. More...

virtual bool	isRealRegion (int ireg) const
	Returnes true if ireg is a real region, false otherwise. More...

virtual int	medium (int ireg) const
	Returns the medium index in region ireg. More...

virtual int	computeIntersections (int ireg, int n, const EGS_Vector &x, const EGS_Vector &u, EGS_GeometryIntersections *isections)
	Calculates intersection distances to region boundaries. More...

void	setMedium (const string &Name)
	Set all regions to a medium with name Name. More...

void	setMedium (int start, int end, const string &Name, int delta=1)
	Set every delta'th region between start and end to the medium named Name. More...

void	setMedium (int imed)
	Set all regions to a medium with index imed. More...

void	setMedium (int istart, int iend, int imed, int delta=1)
	Set every delta'th region between start and end (inclusive) to imed. More...

void	setMedia (EGS_Input *inp)
	Set the media in the geometry from the input pointed to by inp. More...

bool	hasRhoScaling () const
	Does this geometry object have a mass density scaling feature?

virtual EGS_Float	getRelativeRho (int ireg) const
	Get the relative mass density in region ireg.

virtual void	setRelativeRho (int start, int end, EGS_Float rho)
	Set the relative mass density in regions. More...

virtual void	setRelativeRho (EGS_Input *)
	Set the relative mass density from an user input. More...

EGS_Float	getMediumRho (int ind) const

virtual void	setApplication (EGS_Application *app)

bool	hasBScaling () const
	Does this geometry object have a B field scaling feature?

virtual EGS_Float	getBScaling (int ireg) const
	Get the B field scaling factor in region ireg.

virtual void	setBScaling (int start, int end, EGS_Float bf)
	Set the B field scaling factor in regions. More...

virtual void	setBScaling (EGS_Input *)
	Set the B field scaling factor from an user input. More...

const string &	getName () const
	Get the name of this geometry. More...

void	setDebug (bool deb)
	Turn debugging on. More...

void	setName (EGS_Input *inp)
	Set the name of the geometry from the input inp. More...

void	setBoundaryTolerance (EGS_Input *inp)
	Set the value of the boundary tolerance from the input inp. More...

void	setBoundaryTolerance (EGS_Float tol)
	Set the value of the boundary tolerance from argument.

virtual bool	hasBooleanProperty (int ireg, EGS_BPType prop) const
	Is the boolean property prop set for region ireg ?

virtual void	setBooleanProperty (EGS_BPType prop)
	Set the boolean properties of the entire geometry to prop. More...

virtual void	addBooleanProperty (int bit)
	Add a boolean property for the entire geometry by setting the bit'th bit. More...

virtual void	setBooleanProperty (EGS_BPType prop, int start, int end, int step=1)
	Set the boolean properties of every step'th region between start and end (inclusive) to prop. More...

virtual void	addBooleanProperty (int bit, int start, int end, int step=1)
	Add a boolean property to every step'th region between start and end (inclusive) by setting the bit'th bit. More...

int	ref ()
	Increase the reference count to this geometry. More...

int	deref ()
	Decrease the reference count to this geometry. More...

EGS_Float	getBoundaryTolerance ()
	Get the value of the boundary tolerance.

virtual void	getNumberRegions (const string &str, vector< int > &regs)
	Get a list of all the regions labeled with a number.

virtual void	getLabelRegions (const string &str, vector< int > &regs)
	Get the list of all regions labeled with str.

virtual const string &	getLabelName (const int i)
	Get the name of the i-th explicit label in the geometry.

virtual int	getLabelCount ()
	Get the number of explicit labels in the geometry.

int	setLabels (EGS_Input *input)
	Set the labels from an input block.

int	setLabels (const string &inp)
	Set the labels from an input string.

virtual void	updatePosition (EGS_Float time)

virtual void	containsDynamic (bool &hasdynamic)

Additional Inherited Members
Static Public Member Functions inherited from EGS_BaseGeometry
static int	findRegion (EGS_Float xp, int np, const EGS_Float *p)
	Find the bin to which xp belongs, given np bin edges p. More...

static int	nMedia ()
	Get the number of media registered so far by all geometries. More...

static const char *	getMediumName (int ind)
	Get the name of medium with index ind. More...

static int	addMedium (const string &medname)
	Add a medium or get the index of an existing medium. More...

static int	getMediumIndex (const string &medname)
	Get the index of a medium named medname. More...

static EGS_BaseGeometry *	createGeometry (EGS_Input *)
	Create a geometry (or geometries) from a given input. More...

static EGS_BaseGeometry *	createSingleGeometry (EGS_Input *inp)
	Create a single geometry from the input inp. More...

static void	clearGeometries ()
	Clears (deletes) all geometries in the currently active geometry list. More...

static EGS_BaseGeometry *	getGeometry (const string &Name)
	Get a pointer to the geometry named Name. More...

static EGS_BaseGeometry **	getGeometries ()

static int	getNGeometries ()

static string	getUniqueName ()
	Get a unique geometry name. More...

static void	describeGeometries ()
	Describes all existing geometries. More...

static void	setActiveGeometryList (int list)
	Set the currently active geometry list.

static int	getLastError ()

static void	resetErrorFlag ()

Protected Member Functions inherited from EGS_BaseGeometry
virtual void	setMedia (EGS_Input inp, int nmed, const int med_ind)
	Set media. More...

Protected Attributes inherited from EGS_BaseGeometry
int	nreg
	Number of local regions in this geometry. More...

string	name
	Name of this geometry. More...

short *	region_media
	Array of media indeces. More...

int	med
	Medium index. More...

bool	has_rho_scaling
	Does this geometry have relative mass density scvaling?

EGS_Float *	rhor
	Array with relative mass densities.

bool	has_B_scaling
	Does this geometry has B field scaling factor?

bool	has_Ref_rho

EGS_Float *	bfactor
	Array with B field scaling factors.

EGS_Float	rhoRef
	Reference density for B field scaling.

int	nref
	Number of references to this geometry. More...

bool	debug
	Debugging flag. More...

bool	is_convex
	Is this geometry convex? More...

EGS_BPType	bproperty
	A bit mask of boolean properties for the entire geometry. More...

EGS_BPType *	bp_array
	An array of boolean properties on a region by region basis. More...

EGS_Float	boundaryTolerance
	Boundary tolerance for geometries that need it.

EGS_Float	halfBoundaryTolerance

vector< label >	labels
	Labels. More...

EGS_Application *	app
	The application this object belongs to.

Static Protected Attributes inherited from EGS_BaseGeometry
static int	error_flag = 0
	Set to non-zero status if a geometry problem is encountered.

Detailed Description

A set of concentric spheres.

The EGS_cSpheres class implements the geometry methods for a set of concentric spheres which define a geometry with regions. As in the case of a set of cylinders , the region index within the innermost sphere is 0 with the region index increasing towards the last sphere in the set.

The additional keys needed to construct a set of spheres is

library = egs_spheres
midpoint = Ox, Oy, Oz
radii = list of sphere radii in increasing order

Examples of the usage of sets of spheres can be found in the cones.geom, hemisphere.geom, mushroom.geom, rounded_ionchamber.geom and I6702.inp example geometry files.

A simple example:

:start geometry definition:
    :start geometry:
        name     = my_spheres
        library  = egs_spheres
        midpoint = 0 0 0
        radii    = 1 2 3
        :start media input:
            media = water air water
            set medium = 1 1
            set medium = 2 2
        :stop media input:
    :stop geometry:

    simulation geometry = my_spheres

:stop geometry definition:

A simple example with clipping plane 1,0,0,0

There is also a second geometry type called EGS_cSphericalShell that allows you to construct a geometry of concentric spheres where the innermost region is considered external to the geometry (i.e., it is a hollow spherical shell). Input for this geometry looks like:

:start geometry:
    name    = phantom
    library = egs_spheres
    radii   =  1, 2, 3
    type    = shell
    :start media input:
        media = M0 M1
        set medium = 0 0
        set medium = 1 1
    :stop media input:
:stop geometry:

The above geometry would have two regions, region 0 being 1 <= R <= 2 (medium M0), and region 1 being 2 <= R <= 3 (medium M1). Particles with R < 1 and R > 3 would be considered outside the geometry.

Definition at line 139 of file egs_spheres.h.

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

/home/rwtownson/EGSnrc/HEN_HOUSE/egs++/geometry/egs_spheres/egs_spheres.h
/home/rwtownson/EGSnrc/HEN_HOUSE/egs++/geometry/egs_spheres/egs_spheres.cpp

Public Types

Public Member Functions

Additional Inherited Members

Detailed Description