G4InterpolationManager.cc

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//
// neutron_hp -- source file
// J.P. Wellisch, Nov-1996
// A prototype of the low energy neutron transport model.
//
#include "G4InterpolationManager.hh"
 
#include "G4HadronicException.hh"
 
G4InterpolationScheme G4InterpolationManager::MakeScheme(G4int it)
{
  G4InterpolationScheme result(LINLIN);
  switch (it) {
    case 1:
      result = HISTO;
      break;
    case 2:
      result = LINLIN;
      break;
    case 3:
      result = LINLOG;
      break;
    case 4:
      result = LOGLIN;
      break;
    case 5:
      result = LOGLOG;
      break;
    case 11:
      result = CHISTO;
      break;
    case 12:
      result = CLINLIN;
      break;
    case 13:
      result = CLINLOG;
      break;
    case 14:
      result = CLOGLIN;
      break;
    case 15:
      result = CLOGLOG;
      break;
    case 21:
      result = UHISTO;
      break;
    case 22:
      result = ULINLIN;
      break;
    case 23:
      result = ULINLOG;
      break;
    case 24:
      result = ULOGLIN;
      break;
    case 25:
      result = ULOGLOG;
      break;
    default:
      throw G4HadronicException(__FILE__, __LINE__,
                                "G4InterpolationManager: unknown interpolation scheme");
      break;
  }
  return result;
}
 
void G4InterpolationManager::AppendScheme(G4int aPoint, const G4InterpolationScheme& aScheme)
{
  if (aPoint != nEntries) {
    G4cout << "G4InterpolationManager::AppendScheme - " << aPoint << " " << nEntries << G4endl;
    throw G4HadronicException(__FILE__, __LINE__,
                              "Wrong usage of G4InterpolationManager::AppendScheme");
  }
  if (nEntries == 0) {
    nEntries = 1;
    nRanges = 1;
    start[0] = 0;
    range[0] = 1;
    scheme[0] = aScheme;
  }
  else if (aScheme == scheme[nRanges - 1]) {
    ++range[nRanges - 1];
    nEntries++;
  }
  else {
    nEntries++;
    nRanges++;
    G4int i;
    auto buffer = new G4int[nRanges];
    auto buffer1 = new G4int[nRanges];
    auto buff2 = new G4InterpolationScheme[nRanges];
    for (i = 0; i < nRanges - 1; i++) {
      buffer[i] = start[i];
      buffer1[i] = range[i];
      buff2[i] = scheme[i];
    }
    delete[] start;
    delete[] range;
    delete[] scheme;
    start = buffer;
    range = buffer1;
    scheme = buff2;
    start[nRanges - 1] = start[nRanges - 2] + range[nRanges - 2];
    range[nRanges - 1] = 1;
    scheme[nRanges - 1] = aScheme;
  }
}