MdcGeomSvc::AdjCandiTgtLine2D Struct Reference

forms a line in x-y space, ax + by + c = 0 More...

#include <MdcGeomSvc.h>

Public Member Functions
	AdjCandiTgtLine2D ()
CLHEP::Hep2Vector	direction ()
	get direction vector of a line. garanteed to be outwards
double	angleWithR ()
	returns the cosine of angle of the line with R at its location (x0,y0). note that location is the mid point of two wires at selected plane.
CLHEP::Hep2Vector	location ()
HepPoint3D	location3 ()
bool	isLocationValid ()

Public Attributes
double	a
double	b
double	c
double	x0
double	y0
double	z0
double	angle2D
double	angle3D

Static Public Attributes
static const double	INFTY =1./0

Detailed Description

forms a line in x-y space, ax + by + c = 0

Definition at line 58 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

Constructor & Destructor Documentation

AdjCandiTgtLine2D()

MdcGeomSvc::AdjCandiTgtLine2D::AdjCandiTgtLine2D ( )

inline

Definition at line 64 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

:a(INFTY),b(INFTY),c(INFTY),x0(INFTY),y0(INFTY),z0(INFTY),angle2D(INFTY),angle3D(INFTY){};// float point NaN or Infinity

Member Function Documentation

angleWithR()

double MdcGeomSvc::AdjCandiTgtLine2D::angleWithR ( )

inline

returns the cosine of angle of the line with R at its location (x0,y0). note that location is the mid point of two wires at selected plane.

Returns

double

Definition at line 79 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

                          {
           CLHEP::Hep2Vector directionR(x0,y0);
           CLHEP::Hep2Vector dirRRot90(-y0,x0);
           CLHEP::Hep2Vector dirL=direction();
           int sgn=dirRRot90.dot(dirL)>0; // bad-optimized code for telling rotate L-R.
           return sgn*directionR.angle(dirL);
       }

direction()

CLHEP::Hep2Vector MdcGeomSvc::AdjCandiTgtLine2D::direction ( )

inline

get direction vector of a line. garanteed to be outwards

Definition at line 68 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

                                  { 
           CLHEP::Hep2Vector ret(b,-a);
           if (ret.dot(location())<0)
               ret=-ret;
           return ret;
       }

Referenced by angleWithR().

isLocationValid()

bool MdcGeomSvc::AdjCandiTgtLine2D::isLocationValid ( )

inline

Definition at line 95 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

                             {
           return x0<99999 && x0>-99999; 
       }

location()

CLHEP::Hep2Vector MdcGeomSvc::AdjCandiTgtLine2D::location ( )

inline

Definition at line 87 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

                                 {
           CLHEP::Hep2Vector ret(x0,y0);
           return ret;
       }

Referenced by direction().

location3()

HepPoint3D MdcGeomSvc::AdjCandiTgtLine2D::location3 ( )

inline

Definition at line 91 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

                             {
           HepPoint3D ret(x0,y0,z0);
           return ret;
       }

Member Data Documentation

a

double MdcGeomSvc::AdjCandiTgtLine2D::a

Definition at line 60 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

Referenced by direction(), and _MdcGeomSvc_impl::tangents().

angle2D

double MdcGeomSvc::AdjCandiTgtLine2D::angle2D

Definition at line 62 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

angle3D

double MdcGeomSvc::AdjCandiTgtLine2D::angle3D

Definition at line 63 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

b

double MdcGeomSvc::AdjCandiTgtLine2D::b

Definition at line 60 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

Referenced by direction(), and _MdcGeomSvc_impl::tangents().

c

double MdcGeomSvc::AdjCandiTgtLine2D::c

Definition at line 60 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

Referenced by _MdcGeomSvc_impl::tangents().

INFTY

const double MdcGeomSvc::AdjCandiTgtLine2D::INFTY =1./0

static

Definition at line 59 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

x0

double MdcGeomSvc::AdjCandiTgtLine2D::x0

Definition at line 61 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

Referenced by angleWithR(), isLocationValid(), location(), and location3().

y0

double MdcGeomSvc::AdjCandiTgtLine2D::y0

Definition at line 61 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

Referenced by angleWithR(), location(), and location3().

z0

double MdcGeomSvc::AdjCandiTgtLine2D::z0

Definition at line 61 of file MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h.

Referenced by location3().

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

• MdcGeomSvc-00-01-42/MdcGeomSvc/MdcGeomSvc.h
• MdcGeomSvc-00-01-42/src/MdcGeomSvc.cxx