| Geant4 Cross Reference |
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
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17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
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24 // ********************************************************************
25 //
26 //
27 //
28
29 #include <sstream>
30
31 #include "G3EleTable.hh"
32
33 #include "G4Types.hh"
34 #include "G4PhysicalConstants.hh"
35 #include "G4SystemOfUnits.hh"
36 #include "G4ios.hh"
37
38 G3EleTable::G3EleTable()
39 {
40 // create an array of pointers to elements
41 _Ele = new G4Element*[_MaxEle];
42 LoadUp();
43 }
44
45 G3EleTable::~G3EleTable()
46 {
47 delete [] _Ele;
48 }
49
50 G4Element*
51 G3EleTable::GetEle(G4double Z)
52 {
53 G4double A = 0.;
54 char name[20], sym[3];
55 G4int index = (G4int) Z-1;
56 if (!parse(Z, name, sym, A))
57 {
58 G4String na(name);
59 G4String sy(sym);
60 if (_Ele[index] == nullptr)
61 {
62 if ( A == 0. )
63 {
64 // Cannot create element with A = 0.
65 G4String text = "Failed to get element Z = " + std::to_string(Z);
66 G4Exception("G3EleTable::GetEle", "G3toG40016", FatalException, text);
67 }
68 // add an element to the element table here
69 _Ele[index] = new G4Element(na, sy, Z, A*g/mole);
70 }
71 }
72 return _Ele[index];
73 }
74
75 G4int
76 G3EleTable::parse(G4double& Z, char* name, char* sym, G4double& A)
77 {
78 G4int rc = 0;
79 if (Z>0 && Z <=_MaxEle)
80 {
81 G4int z = (G4int) Z-1;
82 G4String str(_EleNames[z]);
83 char* cstr = new char [str.length()+1];
84 std::strcpy(cstr, str.c_str());
85 char* p = std::strtok(cstr," ");
86 std::strcpy(name, p);
87 p = std::strtok(NULL," ");
88 std::strcpy(sym, p);
89 p = std::strtok(NULL," ");
90 std::istringstream in(p);
91 in >> A;
92 delete [] cstr;
93 }
94 else
95 {
96 rc = -1;
97 }
98 return rc;
99 }
100
101 void
102 G3EleTable::LoadUp()
103 {
104 // initialize element pointers to 0
105 for (G4int j=0; j<_MaxEle; ++j)
106 {
107 _Ele[j]=nullptr;
108 }
109 }
110