Back to home page

EIC code displayed by LXR

 
 

    


Warning, file /geant4/examples/advanced/eRosita/physics/src/G4RDLinLogInterpolation.cc was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 //
0027 //
0028 // Author:  Vladimir Ivanchenko (Vladimir.Ivantchenko@cern.ch)
0029 //
0030 // History:
0031 // -----------
0032 // 27 May 2002   VI        Created
0033 //
0034 // -------------------------------------------------------------------
0035 
0036 #include "G4RDLinLogInterpolation.hh"
0037 
0038 // Constructor
0039 
0040 G4RDLinLogInterpolation::G4RDLinLogInterpolation()
0041 { }
0042 
0043 
0044 // Destructor
0045 
0046 G4RDLinLogInterpolation::~G4RDLinLogInterpolation()
0047 { }
0048 
0049 
0050 G4double G4RDLinLogInterpolation::Calculate(G4double x, G4int bin, 
0051                       const G4DataVector& points, 
0052                       const G4DataVector& data) const
0053 {
0054   G4int nBins = data.size() - 1;
0055   G4double value = 0.;
0056   if (x < points[0])
0057     {
0058       value = 0.;
0059     }
0060   else if (bin < nBins)
0061     {
0062       G4double e1 = points[bin];
0063       G4double e2 = points[bin+1];
0064       G4double d1 = std::log(data[bin]);
0065       G4double d2 = std::log(data[bin+1]);
0066       value = std::exp(d1 + (d2 - d1)*(x - e1)/ (e2 - e1));
0067     }
0068   else
0069     {
0070       value = data[nBins];
0071     }
0072   return value;
0073 }