EGSnrc C++ class library  Report PIRS-898 (2021)
Iwan Kawrakow, Ernesto Mainegra-Hing, Frederic Tessier, Reid Townson and Blake Walters
Public Member Functions | Protected Attributes | List of all members
EGS_PyramidT< T > Class Template Reference

A template class for modeling pyramids. More...

#include <egs_pyramid.h>

Inheritance diagram for EGS_PyramidT< T >:
EGS_BaseGeometry

Public Member Functions

 EGS_PyramidT (T *P, const EGS_Vector &Xo, bool O=true, const string &N="")
 Construct a pyramid using P as the base polygon and Xo as the position of the tip. More...
 
bool isInside (const EGS_Vector &x)
 
int isWhere (const EGS_Vector &x)
 
int inside (const EGS_Vector &x)
 
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)
 
const string & getType () const
 
void printInfo () const
 
- 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 EGS_Float howfarToOutside (int ireg, const EGS_Vector &x, const EGS_Vector &u)
 
virtual EGS_Float getVolume (int ireg)
 Calculates the volume of region ireg. More...
 
virtual EGS_Float getBound (int idir, int ind)
 Returns region boundaries in direction determined by idir. More...
 
virtual int getNRegDir (int idir)
 
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 getMaxStep () const
 Returns the maximum number of steps through the geometry. 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? More...
 
virtual EGS_Float getRelativeRho (int ireg) const
 Get the relative mass density in region ireg. More...
 
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.
 

Protected Attributes

T * p
 the base polygon
 
EGS_Vector xo
 the tip of the pyramid
 
EGS_2DVector xop
 the tip projection on the base polygon
 
EGS_Vector a
 the base normal vector.
 
EGS_Float d
 distance from tip to base polygon (always positive)
 
int n
 number of sides
 
EGS_Polygon ** s
 sides.
 
bool open
 is the pyramid open ?
 
- 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? More...
 
EGS_Float * rhor
 Array with relative mass densities. More...
 
bool has_B_scaling
 Does this geometry has B field scaling factor? More...
 
bool has_Ref_rho
 
EGS_Float * bfactor
 Array with B field scaling factors. More...
 
EGS_Float rhoRef
 Reference density for B field scaling. More...
 
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< labellabels
 Labels. More...
 
EGS_Applicationapp
 The application this object belongs to.
 

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_BaseGeometrycreateGeometry (EGS_Input *)
 Create a geometry (or geometries) from a given input. More...
 
static EGS_BaseGeometrycreateSingleGeometry (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_BaseGeometrygetGeometry (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. More...
 
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...
 
- 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

template<class T>
class EGS_PyramidT< T >

A template class for modeling pyramids.

This template class models pyramids with specializations for pyramids having their bases in the X-, Y-, Z- and any plane. The class can be used to model "open" pyramids (pyramids that extend to infinity in the direction pointing from the tip of the pyramid towards the plane used to define the pyramid base) or closed pyramids. The pyramid bases can be arbitrary closed polygons. Pyramid geometries have a single region (inside the pyramid). They are defined via the following set of keys:

library = egs_pyramid
type = EGS_PyramidX or EGS_PyramidY or EGS_PyramidZ or EGS_Pyramid
points = list of 2D or 3D positions
tip    = Ox, Oy, Oz     # 3D position of the tip of the pyramid.
closed = 0 or 1         # optional

As with prisms , when a X-, Y- or Z-pyramid is being constructed, the list of inputs for the points key is considered to be a list of 2D positions in the X-, Y- or Z-planes through the origin (and therefore the number of floating point numbers input must be even). When a EGS_Pyramid object is constructed, the list of inputs for the points key is considered to be a list of 3D positions (and therefore, the number of floating point numbers input must be divisible by 3). In this case, all points must be on a single plane, otherwise the construction of an EGS_Pyramid is rejected. The tip key defines the 3D position of the tip of the pyramid. The closed key is optional. When missing or set to 0, the pyramid is open, otherwise it is closed by the plane in which the pyramid base is defined.

The pyramid.geom example geometry file demonstrate the use of a pyramid object.

A simple example:

:start geometry definition:
    :start geometry:
        name        = my_pyramid
        library     = egs_pyramid
        type        = EGS_PyramidZ
        points      = 1 1  -1 1  -1 -1  4 -1
        tip         = 0 0 2
        closed      = 1
        :start media input:
            media = water
        :stop media input:
    :stop geometry:

    simulation geometry = my_pyramid

:stop geometry definition:
egs_pyramid.png
A simple example

Definition at line 129 of file egs_pyramid.h.

Constructor & Destructor Documentation

template<class T >
EGS_PyramidT< T >::EGS_PyramidT ( T *  P,
const EGS_Vector Xo,
bool  O = true,
const string &  N = "" 
)

Construct a pyramid using P as the base polygon and Xo as the position of the tip.

If O is true, the pyramid is open (i.e. extends to infinity in the direction from the tip towards the pyramid base), otherwise it is closed by the base polygon.

Definition at line 50 of file egs_pyramid.cpp.

References EGS_PyramidT< T >::a, EGS_BaseGeometry::boundaryTolerance, EGS_PyramidT< T >::d, egsFatal, EGS_Projector::getProjection(), EGS_BaseGeometry::is_convex, EGS_PyramidT< T >::n, EGS_Projector::normal(), EGS_BaseGeometry::nreg, EGS_PyramidT< T >::open, EGS_PyramidT< T >::p, EGS_PyramidT< T >::s, EGS_PyramidT< T >::xo, and EGS_PyramidT< T >::xop.


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