Import Geant4 4.1.0 source tree

2016-06-08 16:39:52 +02:00
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+//
+// ********************************************************************
+// * DISCLAIMER                                                       *
+// *                                                                  *
+// * The following disclaimer summarizes all the specific disclaimers *
+// * of contributors to this software. The specific disclaimers,which *
+// * govern, are listed with their locations in:                      *
+// *   http://cern.ch/geant4/license                                  *
+// *                                                                  *
+// * Neither the authors of this software system, nor their employing *
+// * institutes,nor the agencies providing financial support for this *
+// * work  make  any representation or  warranty, express or implied, *
+// * regarding  this  software system or assume any liability for its *
+// * use.                                                             *
+// *                                                                  *
+// * This  code  implementation is the  intellectual property  of the *
+// * GEANT4 collaboration.                                            *
+// * By copying,  distributing  or modifying the Program (or any work *
+// * based  on  the Program)  you indicate  your  acceptance of  this *
+// * statement, and all its terms.                                    *
+// ********************************************************************
+//
+//
+// Author:  Vladimir Ivanchenko (Vladimir.Ivantchenko@cern.ch)
+//
+// History:
+// -----------
+// 29 May 2002   VI        Created
+//
+// -------------------------------------------------------------------
+
+#include "G4LinLogLogInterpolation.hh"
+
+// Constructor
+
+G4LinLogLogInterpolation::G4LinLogLogInterpolation()
+{ }
+
+// Destructor
+
+G4LinLogLogInterpolation::~G4LinLogLogInterpolation()
+{ }
+
+G4VDataSetAlgorithm* G4LinLogLogInterpolation::Clone() const 
+{ return new G4LinLogLogInterpolation; }
+
+
+G4double G4LinLogLogInterpolation::Calculate(G4double x, G4int bin, 
+					  const G4DataVector& points, 
+					  const G4DataVector& data) const
+{
+  G4int nBins = data.size() - 1;
+  G4double value = 0.;
+  if (x < points[0])
+    {
+      value = 0.;
+    }
+  else if (bin < nBins)
+    {
+      G4double e1 = points[bin];
+      G4double e2 = points[bin+1];
+      G4double d1 = data[bin];
+      G4double d2 = data[bin+1];
+      if(d1 > 0.0 && d2 > 0.0) {
+        value = (log10(d1)*log10(e2/x) + log10(d2)*log10(x/e1)) / log10(e2/e1);
+        value = pow(10,value);
+      } else {
+        value = (d1*log10(e2/x) + d2*log10(x/e1)) / log10(e2/e1);
+      }
+    }
+  else
+    {
+      value = data[nBins];
+    }
+
+  return value;
+}