1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // neutron_hp -- source file |
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27 | // J.P. Wellisch, Nov-1996 |
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28 | // A prototype of the low energy neutron transport model. |
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29 | // |
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30 | #include "G4NeutronHPField.hh" |
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31 | #include "G4HadronicException.hh" |
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32 | #include "G4ios.hh" |
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33 | |
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34 | |
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35 | G4NeutronHPField::G4NeutronHPField() |
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36 | { |
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37 | theData = new G4NeutronHPFieldPoint[100]; |
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38 | nPoints=100; |
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39 | nEntries=0; |
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40 | theData->SetData(0,0,0); |
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41 | } |
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42 | |
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43 | G4NeutronHPField::~G4NeutronHPField(){ delete [] theData;} |
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44 | |
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45 | G4double G4NeutronHPField::GetY(G4double e, G4int j) |
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46 | { |
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47 | G4int low = 0; |
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48 | G4int high = 0; |
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49 | G4int i; |
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50 | for (i=1; i<nEntries/10; i++) |
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51 | { |
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52 | if(theData[10*i].GetX()>e) break; |
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53 | } |
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54 | if(i==(nEntries/10)) |
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55 | { |
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56 | i=10*i; |
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57 | while (i<nEntries) |
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58 | { |
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59 | if(theData[i++].GetX()>e) break; |
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60 | } |
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61 | if (i==nEntries) |
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62 | { |
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63 | low = nEntries-1; |
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64 | high = nEntries-2; |
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65 | }else{ |
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66 | low = i-1; |
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67 | high = i; |
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68 | } |
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69 | }else{ |
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70 | for (G4int j=0; j<10; j++) |
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71 | { |
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72 | if(theData[i].GetX()<e) break; |
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73 | i--; |
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74 | } |
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75 | low = i; |
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76 | high = i+1; |
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77 | } |
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78 | G4double x1, x2, y1, y2, x, y; |
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79 | x = e; |
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80 | x1 = theData[low] .GetX(); |
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81 | x2 = theData[high].GetX(); |
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82 | y1 = theData[low] .GetY(j); |
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83 | y2 = theData[high].GetY(j); |
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84 | y = x*(y2-y1)/(x2-x1); |
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85 | return y += y2-x2*(y2-y1)/(x2-x1); |
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86 | } |
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87 | |
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88 | void G4NeutronHPField::Dump() |
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89 | { |
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90 | G4cout << nEntries<<G4endl; |
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91 | for(G4int i=0; i<nEntries; i++) |
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92 | { |
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93 | G4cout << theData[i].GetX()<<" "; |
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94 | for(G4int j=0; j<theData[i].GetDepth(); j++) |
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95 | { |
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96 | G4cout << theData[i].GetY(j)<<" "; |
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97 | } |
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98 | G4cout << G4endl; |
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99 | } |
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100 | } |
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101 | |
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102 | void G4NeutronHPField::Check(G4int i) |
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103 | { |
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104 | if(i>nEntries) throw G4HadronicException(__FILE__, __LINE__, "Skipped some index numbers in G4NeutronHPField"); |
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105 | if(i==nPoints) |
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106 | { |
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107 | nPoints += 50; |
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108 | G4NeutronHPFieldPoint * buff = new G4NeutronHPFieldPoint[nPoints]; |
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109 | // G4cout << "copying 1"<<G4endl; |
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110 | for (G4int j=0; j<nEntries; j++) |
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111 | { |
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112 | buff[j] = theData[j]; |
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113 | } |
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114 | // G4cout << "copying 2"<<G4endl; |
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115 | delete [] theData; |
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116 | theData = buff; |
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117 | } |
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118 | if(i==nEntries) nEntries=i+1; |
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119 | } |
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