CSCAnalogSignal Class Reference

#include <CSCAnalogSignal.h>

Public Member Functions
	CSCAnalogSignal ()
	CSCAnalogSignal (int element, float binSize, std::vector< float > &binValues, float total=0., float timeOffset=0.)
float	getBinSize () const
float	getBinValue (int i) const
int	getElement () const
	constructor from time and amp shape More...
int	getSize () const
float	getTimeOffset () const
float	getTotal () const
float	getValue (float t) const
void	operator*= (float scaleFactor)
void	operator+= (float offset)
float &	operator[] (int i)
const float &	operator[] (int i) const
float	peakTime () const
	the time when the signal peaks More...
void	setElement (int element)
void	setTimeOffset (float offset)
unsigned	size () const
void	superimpose (const CSCAnalogSignal &signal2)

Private Attributes
float	invBinSize
std::vector< float >	theBinValues
int	theElement
float	theTimeOffset
float	theTotal

Friends
std::ostream &	operator<< (std::ostream &, const CSCAnalogSignal &)

Detailed Description

Simple histogram meant to represent the analog signal on a detector element.

Author

Rick Wilkinson

Last mod:
30-Jun-00 ptc Add further traps in getBinValue() and setBinValue().
06-Jul-00 ptc In fact the getBinValue trap was an important bug-fix: it trapped on > size() of stl std::vector but should have trapped >= size(). It occasionally does reach size().

Mods (performace improvements) by Vin 31/07/2000
Critical methods (getBinValue, get Value +=) inlined
bin-size stored and used as his inverse (encapulation helped in not changing interface, named changed to use compiler to catch its occurrencies)
swap input std::vector (be careful if const..)
do proper interpolation (not just /2)

Definition at line 33 of file CSCAnalogSignal.h.

Constructor & Destructor Documentation

CSCAnalogSignal::CSCAnalogSignal ( )

inline

Definition at line 37 of file CSCAnalogSignal.h.

                           : theElement(0), invBinSize(0.), theBinValues(0), 
                               theTotal(0), theTimeOffset(0.) 
  {}

CSCAnalogSignal::CSCAnalogSignal ( int  element, float  binSize, std::vector< float > &  binValues, float  total = 0., float  timeOffset = 0.  )

inline

Definition at line 41 of file CSCAnalogSignal.h.

References theBinValues.

                                                                                                                         :
    theElement(element), invBinSize(1./binSize), 
    theBinValues(), theTotal(total), theTimeOffset(timeOffset) {
    theBinValues.swap(binValues);
  }

Member Function Documentation

float CSCAnalogSignal::getBinSize ( ) const

inline

Definition at line 76 of file CSCAnalogSignal.h.

References invBinSize.

Referenced by CSCCrosstalkGenerator::getCrosstalk(), and operator<<().

{return 1./invBinSize;};

float CSCAnalogSignal::getBinValue ( int  i ) const

inline

Definition at line 53 of file CSCAnalogSignal.h.

References i, and theBinValues.

Referenced by CSCWireElectronicsSim::fillDigis(), getValue(), and CSCCrosstalkGenerator::ratio().

                                         {
    return (i >= static_cast<int>(theBinValues.size()) || i < 0 ) ? 0. : theBinValues[i];
  }

int CSCAnalogSignal::getElement ( ) const

inline

constructor from time and amp shape

Definition at line 51 of file CSCAnalogSignal.h.

References theElement.

Referenced by CSCBaseElectronicsSim::add(), and CSCStripConditions::noisify().

{return theElement;};

int CSCAnalogSignal::getSize ( ) const

inline

Definition at line 75 of file CSCAnalogSignal.h.

References theBinValues.

Referenced by CSCWireElectronicsSim::fillDigis(), CSCCrosstalkGenerator::getCrosstalk(), operator*=(), operator+=(), operator[](), and CSCCrosstalkGenerator::ratio().

{return theBinValues.size();};

float CSCAnalogSignal::getTimeOffset ( ) const

inline

Definition at line 78 of file CSCAnalogSignal.h.

References theTimeOffset.

Referenced by CSCCrosstalkGenerator::getCrosstalk(), CSCStripConditions::noisify(), and operator<<().

{return theTimeOffset;};

float CSCAnalogSignal::getTotal ( ) const

inline

Definition at line 77 of file CSCAnalogSignal.h.

References theTotal.

Referenced by SortSignalsByTotal().

{return theTotal;};

float CSCAnalogSignal::getValue ( float  t ) const

inline

Definition at line 58 of file CSCAnalogSignal.h.

References f, getBinValue(), i, invBinSize, and theTimeOffset.

Referenced by CSCStripElectronicsSim::comparatorReading(), CSCStripElectronicsSim::createDigi(), CSCCrosstalkGenerator::getCrosstalk(), CSCStripElectronicsSim::makeNoiseSignal(), CSCStripElectronicsSim::runComparator(), and superimpose().

                                       {
  // interpolate between bins, if necessary
    float retval = 0.;
    float f = (t-theTimeOffset)*invBinSize + 0.000000001;
    if(f>=0.) {
      int i = static_cast<int>(f);
      f -= static_cast<float>(i);
      retval = (1.-f)*getBinValue(i) + f*getBinValue(i + 1);
    }
    return retval;
  }

void CSCAnalogSignal::operator*= ( float  scaleFactor )

inline

Definition at line 96 of file CSCAnalogSignal.h.

References getSize(), i, theBinValues, and theTotal.

                                            {
    for(int i = 0; i < getSize(); ++i) {
      theBinValues[i] *= scaleFactor;
     }
    theTotal *= scaleFactor;
  }

void CSCAnalogSignal::operator+= ( float  offset )

inline

Definition at line 90 of file CSCAnalogSignal.h.

References getSize(), i, evf::evtn::offset(), and theBinValues.

                                       {
    for(int i = 0; i < getSize(); ++i) {
      theBinValues[i] += offset;
    }
  }

float& CSCAnalogSignal::operator[] ( int  i )

inline

Definition at line 105 of file CSCAnalogSignal.h.

References getSize(), i, and theBinValues.

                            {
    assert(i>=0 && i < getSize());
    return theBinValues[i];
  }

const float& CSCAnalogSignal::operator[] ( int  i ) const

inline

Definition at line 110 of file CSCAnalogSignal.h.

References getSize(), i, and theBinValues.

                                        {
    assert(i>=0 && i < getSize());
    return theBinValues[i];
  }

float CSCAnalogSignal::peakTime

(

)

const

the time when the signal peaks

Definition at line 6 of file CSCAnalogSignal.cc.

References invBinSize, theBinValues, and theTimeOffset.

                                      {
  size_t imax = std::max_element(theBinValues.begin(), theBinValues.end()) - theBinValues.begin();
  return imax/invBinSize + theTimeOffset;
}

void CSCAnalogSignal::setElement ( int  element )

inline

Definition at line 52 of file CSCAnalogSignal.h.

References theElement.

{theElement = element;};

void CSCAnalogSignal::setTimeOffset ( float  offset )

inline

Definition at line 79 of file CSCAnalogSignal.h.

References evf::evtn::offset(), and theTimeOffset.

{theTimeOffset = offset;};

unsigned CSCAnalogSignal::size ( void  ) const

inline

Definition at line 117 of file CSCAnalogSignal.h.

References theBinValues.

{return theBinValues.size();}

void CSCAnalogSignal::superimpose ( const CSCAnalogSignal &  signal2 )

inline

Definition at line 81 of file CSCAnalogSignal.h.

References getValue(), i, invBinSize, n, edmStreamStallGrapher::t, theBinValues, theTimeOffset, and theTotal.

Referenced by cuy.FindIssue::__init__(), CSCBaseElectronicsSim::add(), CSCStripElectronicsSim::addCrosstalk(), and CSCStripConditions::noisify().

                                                           {
    size_t n = theBinValues.size();
    for(size_t i = 0; i < n; ++i) {
       float t = i/invBinSize + theTimeOffset;
       theBinValues[i]+=signal2.getValue(t);
    }
    theTotal += signal2.theTotal; 
  }

Friends And Related Function Documentation

std::ostream& operator<< ( std::ostream &  stream, const CSCAnalogSignal &  signal  )

friend

Definition at line 12 of file CSCAnalogSignal.cc.

                                                                             {
  stream << "CSCAnalogSignal: Element " << signal.theElement
         << "   Total " << signal.theTotal << std::endl;
  for ( int i = 0; i < int( signal.theBinValues.size() ); ++i ) { 

    //@@ ptc 26-Feb-02 Don't both with very small amplitudes

    if ( signal.theBinValues[i] > 1.E-10 ) {
       stream << i*signal.getBinSize()+signal.getTimeOffset() << 
       "\t" << signal.theBinValues[i] << std::endl;
    }
  }
  return stream;
}

Member Data Documentation

float CSCAnalogSignal::invBinSize

private

Definition at line 121 of file CSCAnalogSignal.h.

Referenced by getBinSize(), getValue(), peakTime(), and superimpose().

std::vector<float> CSCAnalogSignal::theBinValues

private

Definition at line 122 of file CSCAnalogSignal.h.

Referenced by CSCAnalogSignal(), getBinValue(), getSize(), operator*=(), operator+=(), operator<<(), operator[](), peakTime(), size(), and superimpose().

int CSCAnalogSignal::theElement

private

Definition at line 120 of file CSCAnalogSignal.h.

Referenced by getElement(), operator<<(), and setElement().

float CSCAnalogSignal::theTimeOffset

private

Definition at line 124 of file CSCAnalogSignal.h.

Referenced by getTimeOffset(), getValue(), peakTime(), setTimeOffset(), and superimpose().

float CSCAnalogSignal::theTotal

private

Definition at line 123 of file CSCAnalogSignal.h.

Referenced by getTotal(), operator*=(), operator<<(), and superimpose().