| Geant4 Cross Reference |
1 // 1
2 // *******************************************
3 // * License and Disclaimer
4 // *
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6 // * the Geant4 Collaboration. It is provided
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17 // *
18 // * This code implementation is the result
19 // * technical work of the GEANT4 collaboratio
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24 // *******************************************
25 //
26 // QSS3 implementation
27 //
28 // Author: Lucio Santi (Univ. Buenos Aires) -
29 // -------------------------------------------
30
31 #include "G4QSS3.hh"
32
33 G4QSS3::G4QSS3(QSS_simulator sim)
34 : simulator(sim)
35 {
36 }
37
38 void G4QSS3::recompute_next_times(G4int* inf,
39 {
40 G4int i;
41 G4double *x = simulator->x;
42 G4double *q = simulator->q;
43 G4double *lqu = simulator->lqu;
44 G4double *time = simulator->nextStateTime;
45 G4double coeff[4];
46
47 for(i = 0; i < 3; ++i)
48 {
49 const G4int var = inf[i],
50 cf0 = 4*var,
51 cf1 = cf0 + 1,
52 cf2 = cf1 + 1,
53 cf3 = cf2 + 1;
54
55 if(std::fabs(q[cf0] - x[cf0]) >= lqu[var])
56 {
57 time[var] = t;
58 }
59 else
60 {
61 coeff[0] = q[cf0] + lqu[var] - x[cf0];
62 coeff[1] = q[cf1] - x[cf1];
63 coeff[2] = q[cf2] - x[cf2];
64 coeff[3] = -x[cf3];
65 time[var] = t + min_pos_root_3_alt(coeff
66 }
67 }
68 }
69