cdc data objects

Collaboration diagram for cdc data objects:

Classes
class	CDCDedxHit
	Class to store CDC hit information needed for dedx. More...
class	CDCDedxLikelihood
	Container for likelihoods obtained by the CDC dE/dx PID (CDCDedxPIDModule). More...
class	CDCDedxTrack
	Debug output for CDCDedxPID module. More...
class	CDCHit
	Class containing the result of the unpacker in raw data and the result of the digitizer in simulation. More...
class	CDCRawHit
	The CDCRawHit (suppressed mode) class. More...
class	CDCRawHitWaveForm
	The CDCRawHitWaveForm (Full output mode) class. More...
class	CDCRecoHit
	This class is used to transfer CDC information to the track fit. More...
class	CDCSimHit
	Example Detector. More...
class	WireID
	Class to identify a wire inside the CDC. More...

Functions
double	getSignedDOCAXY () const
	Returns signed distance-of-closest-approach in XY projection.
double	getEntranceAngle () const
	Returns entrance angle to the cell in XY projection.

Detailed Description

Function Documentation

getEntranceAngle()

double getEntranceAngle

(

)

const

Returns entrance angle to the cell in XY projection.

Keeping here the same angle definition as in CDCDedxPIDModule

Returns

entracne angle

Definition at line 25 of file CDCDedxHit.cc.

  {
    double px = m_px;
    double py = m_py;
    double wx = m_x + m_dx;
    double wy = m_y + m_dy;
    double cross = wx * py - wy * px;
    double dot = wx * px + wy * py;
 
    return std::atan2(cross, dot);
  }

getSignedDOCAXY()

double getSignedDOCAXY

(

)

const

Returns signed distance-of-closest-approach in XY projection.

Keeping here the same sign definition as in CDCDedxPIDModule (positive in +phi direction)

Returns

signed DOCA in XY projection

Definition at line 16 of file CDCDedxHit.cc.

  {
    double doca = std::sqrt(m_dx * m_dx + m_dy * m_dy);
    double z = m_dx * m_y - m_dy * m_x;
    if (z < 0) doca = -doca;
 
    return doca;
  }