Gabriele Cosmo
127 lines
4.8 KiB
C++
127 lines
4.8 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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//
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////////////////////////////////////////////////////////////////////////
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// PhysicsOrderedFreeVector Class Implementation
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////////////////////////////////////////////////////////////////////////
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//
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// File: G4PhysicsOrderedFreeVector.cc
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// Version: 2.0
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// Created: 1996-08-13
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// Author: Juliet Armstrong
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// Updated: 1997-03-25 by Peter Gumplinger
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// > cosmetics (only)
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// 1998-11-11 by Peter Gumplinger
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// > initialize all data members of the base class in
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// derived class constructors
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// 2000-11-11 by H.Kurashige
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// > use STL vector for dataVector and binVector
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// 2009-06-19 by V.Ivanchenko
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// > removed hidden bin
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// 2013-10-02 by V.Ivanchenko removed FindBinLocation
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//
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// mail: gum@triumf.ca
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//
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////////////////////////////////////////////////////////////////////////
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#include "G4PhysicsOrderedFreeVector.hh"
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G4PhysicsOrderedFreeVector::G4PhysicsOrderedFreeVector()
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: G4PhysicsVector()
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{
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type = T_G4PhysicsOrderedFreeVector;
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}
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G4PhysicsOrderedFreeVector::G4PhysicsOrderedFreeVector(G4double *Energies,
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G4double *Values,
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size_t VectorLength)
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: G4PhysicsVector()
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{
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type = T_G4PhysicsOrderedFreeVector;
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dataVector.reserve(VectorLength);
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binVector.reserve(VectorLength);
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for (size_t i = 0 ; i < VectorLength ; ++i)
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{
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InsertValues(Energies[i], Values[i]);
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}
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}
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G4PhysicsOrderedFreeVector::~G4PhysicsOrderedFreeVector()
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{}
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void G4PhysicsOrderedFreeVector::InsertValues(G4double energy, G4double value)
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{
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std::vector<G4double>::iterator binLoc =
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std::lower_bound(binVector.begin(), binVector.end(), energy);
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size_t binIdx = binLoc - binVector.begin(); // Iterator difference!
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std::vector<G4double>::iterator dataLoc = dataVector.begin() + binIdx;
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binVector.insert(binLoc, energy);
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dataVector.insert(dataLoc, value);
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++numberOfNodes;
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edgeMin = binVector.front();
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edgeMax = binVector.back();
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}
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G4double G4PhysicsOrderedFreeVector::GetEnergy(G4double aValue)
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{
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G4double e;
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if (aValue <= GetMinValue()) {
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e = edgeMin;
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} else if (aValue >= GetMaxValue()) {
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e = edgeMax;
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} else {
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size_t closestBin = FindValueBinLocation(aValue);
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e = LinearInterpolationOfEnergy(aValue, closestBin);
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}
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return e;
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}
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size_t G4PhysicsOrderedFreeVector::FindValueBinLocation(G4double aValue)
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{
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size_t bin = std::lower_bound(dataVector.begin(), dataVector.end(), aValue)
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- dataVector.begin() - 1;
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bin = std::min(bin, numberOfNodes-2);
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return bin;
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}
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G4double G4PhysicsOrderedFreeVector::LinearInterpolationOfEnergy(G4double aValue,
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size_t bin)
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{
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G4double res = binVector[bin];
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G4double del = dataVector[bin+1] - dataVector[bin];
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if(del > 0.0) {
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res += (aValue - dataVector[bin])*(binVector[bin+1] - res)/del;
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}
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return res;
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}
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