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geant4/source/global/management/include/G4PhysicsVector.icc
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//
// ********************************************************************
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// ********************************************************************
//
//
// $Id: G4PhysicsVector.icc,v 1.9 2006/06/29 19:02:40 gunter Exp $
// GEANT4 tag $Name: geant4-09-01 $
//
//
//---------------------------------------------------------------
// GEANT 4 class source file
//
// G4PhysicsVector.icc
//
// Description:
// A physics vector which has values of energy-loss, cross-section,
// and other physics values of a particle in matter in a given
// range of the energy, momentum, etc.
// This class serves as the base class for a vector having various
// energy scale, for example like 'log', 'linear', 'free', etc.
//
//---------------------------------------------------------------
inline
G4double G4PhysicsVector::operator[](const size_t binNumber) const
{
return dataVector[binNumber];
}
inline
G4double G4PhysicsVector::operator()(const size_t binNumber) const
{
return dataVector[binNumber];
}
inline
size_t G4PhysicsVector::GetVectorLength() const
{
return numberOfBin;
}
inline
G4double G4PhysicsVector::LinearInterpolation(G4double theEnergy,
size_t theLocBin)
{
// Linear interpolation is used to get the value. If the give energy
// is in the highest bin, no interpolation will be Done. Because
// there is an extra bin hidden from a user at locBin=numberOfBin,
// the following interpolation is valid even the current locBin=
// numberOfBin-1.
G4double intplFactor = (theEnergy-binVector[theLocBin])
/ (binVector[theLocBin+1]-binVector[theLocBin]); // Interpolation factor
return dataVector[theLocBin] +
( dataVector[theLocBin+1]-dataVector[theLocBin] ) * intplFactor;
}
inline
G4double G4PhysicsVector::GetValue(G4double theEnergy,
G4bool& isOutRange)
{
// Use cache for speed up - check if the value 'theEnergy' is same as the
// last call. If it is same, then use the last bin location. Also the
// value 'theEnergy' lies between the last energy and low edge of of the
// bin of last call, then the last bin location is used.
isOutRange = false; // No range check.
size_t locBin = 0;
if( !(theEnergy != lastEnergy) ) {
return lastValue;
} else if( (theEnergy < lastEnergy)
&& (theEnergy >= binVector[lastBin]) ) {
locBin = lastBin;
lastEnergy = theEnergy;
lastValue = LinearInterpolation(theEnergy, locBin);
return lastValue;
} else if( theEnergy < edgeMin ){
lastBin = 0;
lastEnergy = theEnergy;
lastValue = dataVector[0];
return lastValue;
} else if( theEnergy >= edgeMax ){
lastBin = numberOfBin-1;
lastEnergy = theEnergy;
lastValue = dataVector[ numberOfBin-1 ];
return lastValue;
} else {
locBin = FindBinLocation(theEnergy);
lastBin = locBin;
lastEnergy = theEnergy;
lastValue = LinearInterpolation(theEnergy, locBin);
return lastValue;
}
}
inline
void G4PhysicsVector::PutValue(size_t binNumber, G4double theValue)
{
dataVector[binNumber] = theValue;
// Fill the bin which is hidden to user with theValue. This is to
// handle correctly when Energy=theEmax in getValue.
if(binNumber==numberOfBin-1) {
dataVector[binNumber+1] = theValue;
}
}
inline
G4bool G4PhysicsVector::IsFilledVectorExist() const
{
G4bool status=false;
if(numberOfBin > 0) { status=true; }
return status;
}
inline
void G4PhysicsVector::PutComment(const G4String& theComment)
{
comment = theComment;
}
inline
const G4String& G4PhysicsVector::GetComment() const
{
return comment;
}
inline
G4PhysicsVectorType G4PhysicsVector::GetType() const
{
return type;
}