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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 25 | f9daq | 1 | #include "include/guide.h" |
| 2 | |||
| 3 | #include <iostream> |
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| 4 | |||
| 5 | // vector output shortcut |
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| 6 | void printv(TVector3 v) |
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| 7 | { |
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| 72 | f9daq | 8 | printf("(x,y,z) = (%.4lf, %.4lf, %.4lf)\n", v.x(), v.y(), v.z()); |
| 25 | f9daq | 9 | } |
| 10 | // TVector3::Rotate does not seem accurate enough |
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| 11 | TVector3 rotatey(TVector3 v, double theta) |
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| 12 | { |
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| 72 | f9daq | 13 | return TVector3(v.x() * TMath::Cos(theta) + v.z() * TMath::Sin(theta), |
| 14 | v.y(), |
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| 15 | -v.x() * TMath::Sin(theta) + v.z() * TMath::Cos(theta)); |
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| 25 | f9daq | 16 | } |
| 17 | // another shortcut not found in TMath |
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| 18 | int sign(double in) |
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| 19 | { |
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| 72 | f9daq | 20 | if(in >= 0.0) return 1; |
| 21 | else return -1; |
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| 25 | f9daq | 22 | } |
| 23 | |||
| 73 | f9daq | 24 | void CRay::Set(TVector3 r0, TVector3 k0) |
| 25 | f9daq | 25 | { |
| 73 | f9daq | 26 | r = r0; k = k0.Unit(); |
| 25 | f9daq | 27 | } |
| 28 | //----------------------------------------------------------------------------- |
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| 29 | //void CRay::Set(double x0, double y0, double z0, double l0, double m0, double n0) |
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| 30 | //{ |
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| 72 | f9daq | 31 | //r.SetXYZ(x0, y0, z0); |
| 32 | //n.SetXYZ(l0, m0, n0); n = n.Unit(); |
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| 25 | f9daq | 33 | //} |
| 34 | //----------------------------------------------------------------------------- |
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| 35 | /* |
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| 36 | CRay& CRay::operator = (const CRay& p) |
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| 37 | { |
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| 38 | r.SetXYZ(p.GetR().x(), p.GetR().y(), p.GetR().z()); |
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| 39 | //this->r.SetXYZ(p.x(), p.y(), p.z()); |
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| 40 | n.SetXYZ(p.GetN().x(), p.GetN().y(), p.GetN().z()); |
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| 41 | return *this; |
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| 42 | } */ |
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| 43 | void CRay::Print() |
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| 44 | { |
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| 72 | f9daq | 45 | printf("---> CRay::Print() <---\n"); |
| 46 | printf("(x,y,z)=(%.2lf, %.2lf, %.2lf); (l,m,n)=(%.2lf, %.2lf, %.2lf)\n", |
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| 73 | f9daq | 47 | r.x(), r.y(), r.z(), k.x(), k.y(), k.z()); |
| 25 | f9daq | 48 | } |
| 49 | void CRay::Draw() |
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| 50 | { |
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| 72 | f9daq | 51 | double t = 50.0; |
| 52 | TPolyLine3D *line3d = new TPolyLine3D(2); |
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| 53 | //line3d->SetPoint(0, r.x() - t*n.x(), r.y() - t*n.y(), r.z() - t*n.z()); |
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| 54 | line3d->SetPoint(0, r.x(), r.y(), r.z()); |
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| 73 | f9daq | 55 | line3d->SetPoint(1, r.x() + t*k.x(), k.y() + t*k.y(), r.z() + t*k.z()); |
| 72 | f9daq | 56 | line3d->SetLineWidth(1); |
| 57 | line3d->SetLineColor(color); |
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| 25 | f9daq | 58 | |
| 72 | f9daq | 59 | line3d->Draw(); |
| 25 | f9daq | 60 | } |
| 61 | void CRay::Draw(double x_from, double x_to) |
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| 62 | { |
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| 72 | f9daq | 63 | double A1, A2; |
| 25 | f9daq | 64 | TPolyLine3D *line3d = new TPolyLine3D(2); |
| 65 | |||
| 73 | f9daq | 66 | if(k.x() < MARGIN) { |
| 72 | f9daq | 67 | A1 = A2 = 0.0; |
| 68 | } else { |
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| 73 | f9daq | 69 | A1 = (x_from - r.x())/k.x(); |
| 70 | A2 = (x_to - r.x())/k.x(); |
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| 72 | f9daq | 71 | } |
| 25 | f9daq | 72 | |
| 73 | f9daq | 73 | line3d->SetPoint(0, x_from, A1*k.y()+r.y(), A1*k.z()+r.z()); |
| 74 | line3d->SetPoint(1, x_to, A2*k.y()+r.y(), A2*k.z()+r.z()); |
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| 72 | f9daq | 75 | line3d->SetLineWidth(1); |
| 76 | line3d->SetLineColor(color); |
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| 77 | |||
| 78 | line3d->Draw(); |
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| 25 | f9daq | 79 | } |
| 80 | void CRay::DrawS(double x_from, double t) |
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| 81 | { |
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| 72 | f9daq | 82 | double A1; |
| 83 | TPolyLine3D *line3d = new TPolyLine3D(2); |
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| 25 | f9daq | 84 | |
| 73 | f9daq | 85 | if(k.x() < MARGIN) |
| 72 | f9daq | 86 | A1 = 0.0; |
| 87 | else |
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| 73 | f9daq | 88 | A1 = (x_from - r.x())/k.x(); |
| 25 | f9daq | 89 | |
| 73 | f9daq | 90 | line3d->SetPoint(0, x_from, A1*k.y()+r.y(), A1*k.z()+r.z()); |
| 91 | line3d->SetPoint(1, r.x() + t*k.x(), r.y() + t*k.y(), r.z() + t*k.z()); |
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| 72 | f9daq | 92 | line3d->SetLineWidth(1); |
| 93 | line3d->SetLineColor(color); |
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| 94 | |||
| 95 | line3d->Draw(); |
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| 25 | f9daq | 96 | } |
| 97 | |||
| 98 | |||
| 99 | CPlane4::CPlane4() : |
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| 72 | f9daq | 100 | n(TVector3(1.0, 0.0, 0.0)), |
| 101 | A(0), |
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| 102 | B(0), |
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| 103 | C(0), |
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| 104 | D(0) |
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| 25 | f9daq | 105 | { r[0] = TVector3(0.0,-1.0,-1.0); |
| 72 | f9daq | 106 | r[1] = TVector3(0.0,-1.0, 1.0); |
| 107 | r[2] = TVector3(0.0, 1.0, 1.0); |
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| 108 | r[3] = TVector3(0.0, 1.0,-1.0); |
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| 109 | for(int i=0;i<4;i++) edge[i] = TVector3(0,0,0); |
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| 110 | for(int i=0;i<4;i++) angle_r[i] = 0; |
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| 25 | f9daq | 111 | }; |
| 112 | CPlane4::CPlane4(TVector3 r1, TVector3 r2, TVector3 r3, TVector3 r4) |
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| 113 | { |
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| 72 | f9daq | 114 | //Set(r1, r2, r3, r4); |
| 115 | //} |
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| 116 | //----------------------------------------------------------------------------- |
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| 117 | // za izracun parametrov ravnine je en vektor prevec, vendar tega |
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| 118 | // rabim kot zadnji vogal poligona |
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| 119 | //void CPlane4::Set(TVector3 r1, TVector3 r2, TVector3 r3, TVector3 r4) |
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| 120 | //{ |
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| 121 | double x1,y1,z1, x2,y2,z2, x3,y3,z3; |
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| 25 | f9daq | 122 | |
| 72 | f9daq | 123 | x1 = r1.x(); y1 = r1.y(); z1 = r1.z(); |
| 124 | x2 = r2.x(); y2 = r2.y(); z2 = r2.z(); |
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| 125 | x3 = r3.x(); y3 = r3.y(); z3 = r3.z(); |
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| 25 | f9daq | 126 | |
| 72 | f9daq | 127 | A = y3*(z1 - z2) + y1*(z2 - z3) + y2*(z3 - z1); |
| 128 | B = x3*(z2 - z1) + x1*(z3 - z2) + x2*(z1 - z3); |
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| 129 | C = x3*(y1 - y2) + x1*(y2 - y3) + x2*(y3 - y1); |
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| 130 | D = y3*(x1*z2 - x2*z1) + x3*(y2*z1 - y1*z2) + z3*(x2*y1 - x1*y2); |
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| 25 | f9daq | 131 | |
| 72 | f9daq | 132 | r[0] = r1; r[1] = r2; r[2] = r3; r[3] = r4; |
| 133 | n.SetXYZ(A, B, C); |
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| 134 | n = n.Unit(); |
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| 25 | f9daq | 135 | |
| 72 | f9daq | 136 | for(int i=0;i<4;i++) |
| 137 | edge[i] = r[i-3 ? i+1 : 0] - r[i]; |
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| 138 | |||
| 139 | for(int i=0;i<4;i++) |
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| 140 | angle_r[i] = TMath::ACos(/*TMath::Abs*/( ((-edge[i ? i-1 : 3]).Unit()) * (edge[i].Unit()) )); |
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| 25 | f9daq | 141 | }; |
| 142 | |||
| 143 | void CPlane4::Set(TVector3 r1, TVector3 r2, TVector3 r3, TVector3 r4) |
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| 144 | { |
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| 145 | double x1,y1,z1, x2,y2,z2, x3,y3,z3; |
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| 146 | |||
| 72 | f9daq | 147 | x1 = r1.x(); y1 = r1.y(); z1 = r1.z(); |
| 148 | x2 = r2.x(); y2 = r2.y(); z2 = r2.z(); |
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| 149 | x3 = r3.x(); y3 = r3.y(); z3 = r3.z(); |
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| 25 | f9daq | 150 | |
| 72 | f9daq | 151 | A = y3*(z1 - z2) + y1*(z2 - z3) + y2*(z3 - z1); |
| 152 | B = x3*(z2 - z1) + x1*(z3 - z2) + x2*(z1 - z3); |
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| 153 | C = x3*(y1 - y2) + x1*(y2 - y3) + x2*(y3 - y1); |
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| 154 | D = y3*(x1*z2 - x2*z1) + x3*(y2*z1 - y1*z2) + z3*(x2*y1 - x1*y2); |
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| 25 | f9daq | 155 | |
| 72 | f9daq | 156 | r[0] = r1; r[1] = r2; r[2] = r3; r[3] = r4; |
| 157 | n.SetXYZ(A, B, C); |
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| 158 | n = n.Unit(); |
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| 25 | f9daq | 159 | |
| 72 | f9daq | 160 | for(int i=0;i<4;i++) |
| 161 | edge[i] = r[i-3 ? i+1 : 0] - r[i]; |
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| 162 | |||
| 163 | for(int i=0;i<4;i++) |
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| 164 | angle_r[i] = TMath::ACos(/*TMath::Abs*/( ((-edge[i ? i-1 : 3]).Unit()) * (edge[i].Unit()) )); |
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| 25 | f9daq | 165 | }; |
| 166 | |||
| 167 | CPlane4::CPlane4(TVector3 *vr) |
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| 168 | { |
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| 169 | double x1,y1,z1, x2,y2,z2, x3,y3,z3; |
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| 170 | |||
| 72 | f9daq | 171 | x1 = vr[0].x(); y1 = vr[0].y(); z1 = vr[0].z(); |
| 172 | x2 = vr[1].x(); y2 = vr[1].y(); z2 = vr[1].z(); |
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| 173 | x3 = vr[2].x(); y3 = vr[2].y(); z3 = vr[2].z(); |
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| 25 | f9daq | 174 | |
| 72 | f9daq | 175 | A = y3*(z1 - z2) + y1*(z2 - z3) + y2*(z3 - z1); |
| 176 | B = x3*(z2 - z1) + x1*(z3 - z2) + x2*(z1 - z3); |
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| 177 | C = x3*(y1 - y2) + x1*(y2 - y3) + x2*(y3 - y1); |
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| 178 | D = y3*(x1*z2 - x2*z1) + x3*(y2*z1 - y1*z2) + z3*(x2*y1 - x1*y2); |
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| 25 | f9daq | 179 | |
| 72 | f9daq | 180 | r[0] = vr[0]; r[1] = vr[1]; r[2] = vr[2]; r[3] = vr[3]; |
| 181 | n.SetXYZ(A, B, C); |
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| 182 | n = n.Unit(); |
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| 25 | f9daq | 183 | |
| 72 | f9daq | 184 | for(int i=0;i<4;i++) |
| 185 | edge[i] = r[i-3 ? i+1 : 0] - r[i]; |
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| 186 | |||
| 187 | for(int i=0;i<4;i++) |
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| 188 | angle_r[i] = TMath::ACos(/*TMath::Abs*/( ((-edge[i ? i-1 : 3]).Unit()) * (edge[i].Unit()) )); |
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| 25 | f9daq | 189 | }; |
| 190 | //----------------------------------------------------------------------------- |
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| 191 | // posce presecisce !neskoncne! ravnine s premico (class CRay) |
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| 192 | // ce najde presecisce vrne 1 |
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| 193 | int CPlane4::GetIntersection(TVector3 *vec, CRay ray) |
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| 194 | { |
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| 72 | f9daq | 195 | TVector3 N; //nenormirani vektor (A,B,C) |
| 196 | double num, den; //stevec, imenovalec |
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| 197 | double t; |
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| 198 | TVector3 tmp; |
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| 25 | f9daq | 199 | |
| 72 | f9daq | 200 | N.SetXYZ(A,B,C); |
| 25 | f9daq | 201 | |
| 72 | f9daq | 202 | num = N*ray.GetR() + D; |
| 73 | f9daq | 203 | den = N*ray.GetK(); |
| 25 | f9daq | 204 | |
| 72 | f9daq | 205 | if (dbg) printf("t = %6.3lf / %6.3lf = %6.3lf\n", num, den, num/den); |
| 206 | |||
| 207 | //if(den == 0) |
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| 208 | if(TMath::Abs(den) < MARGIN) { |
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| 209 | //if(num == 0) |
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| 210 | if(TMath::Abs(num) < MARGIN) { |
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| 211 | if (dbg) printf("The ray is on the surface!\n"); |
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| 212 | return 0; //return 2; // premica lezi na ravnini |
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| 213 | } |
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| 214 | else { |
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| 215 | if (dbg) printf("The ray is parallel to the surface!\n"); |
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| 216 | return 0; // ni presecisca |
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| 217 | } |
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| 218 | } |
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| 219 | |||
| 220 | t = num / den; |
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| 221 | |||
| 222 | tmp = ray.GetR(); |
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| 73 | f9daq | 223 | tmp -= t*ray.GetK(); |
| 72 | f9daq | 224 | *vec = tmp; |
| 225 | return 1; |
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| 25 | f9daq | 226 | } |
| 227 | //----------------------------------------------------------------------------- |
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| 228 | // ali je vektor vec, ki lezi na ravnini skupaj z e1 in e2, med njima |
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| 229 | // angle_r je kot med e1 in e2, vsi vektorji imajo skupno izhodisce |
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| 230 | int CPlane4::IsInTri(TVector3 vec, TVector3 e1, TVector3 e2, double angle) |
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| 231 | { |
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| 232 | double angle_ve1, angle_ve2; |
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| 233 | |||
| 72 | f9daq | 234 | if(dbg) printf("--- CPlane4::IsInTri ---\n"); |
| 25 | f9daq | 235 | |
| 72 | f9daq | 236 | angle_ve1 = TMath::ACos(/*TMath::Abs*/( (e1.Unit()) * (vec.Unit()) )); |
| 237 | angle_ve2 = TMath::ACos(/*TMath::Abs*/( (e2.Unit()) * (vec.Unit()) )); |
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| 25 | f9daq | 238 | |
| 72 | f9daq | 239 | if(dbg) |
| 240 | { |
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| 241 | printf("angle_ve1 = %lf\n", angle_ve1*DEGREE); |
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| 242 | printf("angle_ve2 = %lf\n", angle_ve2*DEGREE); |
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| 243 | printf("angle_sum = %lf\n", (angle_ve1 + angle_ve2)*DEGREE); |
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| 244 | printf(" angle_r = %lf\n", angle*DEGREE); |
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| 245 | } |
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| 246 | |||
| 25 | f9daq | 247 | bool difference = (MARGIN < TMath::Abs(angle - (angle_ve1 + angle_ve2))); |
| 248 | if (dbg) printf(" MARGIN < Difference = %d\n", difference); |
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| 249 | return (int) !difference; |
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| 250 | } |
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| 251 | //----------------------------------------------------------------------------- |
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| 252 | // ali je vektor vec, ki lezi na ravnini!, znotraj meja, ki jih definirajo |
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| 253 | // strije vogali te ravnine r[i] |
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| 254 | int CPlane4::IsVectorIn(TVector3 vec) |
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| 255 | { |
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| 256 | int status; |
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| 257 | |||
| 72 | f9daq | 258 | if(dbg) printf("--- CPlane4::IsVectorIn ---\n"); |
| 25 | f9daq | 259 | |
| 72 | f9daq | 260 | for(int i=0;i<3;i++) |
| 261 | { |
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| 262 | status = IsInTri(vec - r[i], edge[i], -edge[i ? i-1 : 3], angle_r[i]); |
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| 263 | if(dbg) printf(" [%d] vec is %s\n", i, status ? "inside" : "outside"); |
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| 264 | if(!status) return 0; |
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| 265 | } |
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| 266 | |||
| 267 | return 1; |
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| 25 | f9daq | 268 | } |
| 269 | int CPlane4::TestIntersection(CRay in) |
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| 270 | { |
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| 72 | f9daq | 271 | TVector3 tmp; |
| 25 | f9daq | 272 | |
| 72 | f9daq | 273 | if( GetIntersection(&tmp, in) ) |
| 274 | if( IsVectorIn(tmp) ) |
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| 275 | return 1; |
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| 276 | |||
| 277 | return 0; |
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| 25 | f9daq | 278 | } |
| 279 | int CPlane4::TestIntersection(TVector3 *vec, CRay in) |
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| 280 | { |
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| 72 | f9daq | 281 | TVector3 tmp; |
| 25 | f9daq | 282 | |
| 72 | f9daq | 283 | if( GetIntersection(&tmp, in) ) |
| 284 | if( IsVectorIn(tmp) ) { |
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| 285 | *vec = tmp; |
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| 286 | return 1; |
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| 287 | } |
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| 288 | |||
| 289 | return 0; |
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| 25 | f9daq | 290 | } |
| 291 | void CPlane4::Print() |
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| 292 | { |
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| 72 | f9daq | 293 | printf("--- CPlane4::Print() ---\n"); |
| 294 | printf(" r=(%.2lf, %.2lf, %.2lf); n=(%.2lf, %.2lf, %.2lf); ", |
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| 295 | r[0].x(), r[0].y(), r[0].z(), n.x(), n.y(), n.z()); |
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| 296 | printf( "(A,B,C,D)=(%.2lf, %.2lf, %.2lf, %.2lf) \n", A, B, C, D); |
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| 297 | for(int i=0;i<4;i++) printf(" edge[%d] = (%lf, %lf, %lf)\n", i, edge[i].x(), edge[i].y(), edge[i].z()); |
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| 298 | for(int i=0;i<4;i++) printf(" angle[%d] = %lf\n", i, angle_r[i]*DEGREE); |
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| 25 | f9daq | 299 | } |
| 300 | void CPlane4::Draw(int color, int width) |
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| 301 | { |
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| 72 | f9daq | 302 | TPolyLine3D *line3d = new TPolyLine3D(5); |
| 25 | f9daq | 303 | |
| 72 | f9daq | 304 | for(int i=0;i<4;i++) line3d->SetPoint(i, r[i].x(), r[i].y(), r[i].z()); |
| 305 | line3d->SetPoint(4, r[0].x(), r[0].y(), r[0].z()); |
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| 306 | line3d->SetLineWidth(width); line3d->SetLineColor(color); |
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| 25 | f9daq | 307 | |
| 72 | f9daq | 308 | line3d->Draw(); |
| 25 | f9daq | 309 | } |
| 310 | |||
| 311 | |||
| 312 | CSurface::CSurface(int type0): |
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| 72 | f9daq | 313 | type(type0) |
| 25 | f9daq | 314 | { |
| 72 | f9daq | 315 | TVector3 vr[4]; |
| 316 | TDatime now; |
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| 25 | f9daq | 317 | |
| 72 | f9daq | 318 | vr[0].SetXYZ(0.0,-1.0,-1.0); |
| 319 | vr[1].SetXYZ(0.0,-1.0, 1.0); |
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| 320 | vr[2].SetXYZ(0.0, 1.0, 1.0); |
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| 321 | vr[3].SetXYZ(0.0, 1.0,-1.0); |
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| 322 | //CPlane4::Set(vr); |
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| 323 | SetIndex(1.0, 1.5); |
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| 324 | |||
| 325 | reflection = c_reflectivity; |
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| 326 | rand.SetSeed(now.Get()); |
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| 327 | |||
| 328 | SetFresnel(); |
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| 25 | f9daq | 329 | } |
| 330 | CSurface::CSurface(int type0, TVector3 r1, TVector3 r2, TVector3 r3, TVector3 r4, double n10, double n20, double reflectivity) |
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| 331 | { |
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| 72 | f9daq | 332 | TDatime now; |
| 333 | |||
| 334 | type = type0; CPlane4::Set(r1, r2, r3, r4); |
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| 335 | SetIndex(n10, n20); |
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| 336 | |||
| 337 | reflection = reflectivity; |
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| 338 | rand.SetSeed(now.Get()); |
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| 339 | |||
| 340 | SetFresnel(); |
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| 25 | f9daq | 341 | } |
| 342 | CSurface::CSurface(int type0, TVector3 *vr, double n10, double n20, double reflectivity) |
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| 343 | { |
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| 72 | f9daq | 344 | TDatime now; |
| 345 | |||
| 346 | type = type0; CPlane4::Set(vr); |
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| 347 | SetIndex(n10, n20); |
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| 348 | |||
| 349 | reflection = reflectivity; |
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| 350 | rand.SetSeed(now.Get()); |
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| 351 | |||
| 352 | SetFresnel(); |
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| 25 | f9daq | 353 | } |
| 354 | void CSurface::SetIndex(double n10, double n20) |
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| 355 | { |
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| 72 | f9daq | 356 | n1 = n10; n2 = n20; n1_n2 = n1/n2; |
| 357 | |||
| 358 | if(n1 > n2) |
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| 359 | cosTtotal = TMath::Sqrt( 1 - TMath::Power(n2/n1, 2) ); |
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| 360 | else |
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| 361 | cosTtotal = 0.0; |
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| 25 | f9daq | 362 | } |
| 363 | //----------------------------------------------------------------------------- |
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| 364 | // sprejme zarek, vrne uklonjen/odbit zarek in presecisce |
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| 365 | // vrne 0 ce ni presecisca; 1 ce se je lomil |
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| 366 | // 2 ce se je odbil; -2 ce se je absorbiral |
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| 367 | int CSurface::PropagateRay(CRay in, CRay *out, TVector3 *intersection) |
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| 368 | { |
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| 369 | if (dbg) printf("--- CSurface::PropagateRay ---\n"); |
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| 71 | f9daq | 370 | double cosTi; // incident ray angle |
| 371 | double cosTt; // transmited ray angle |
||
| 25 | f9daq | 372 | TVector3 intersect, transmit; |
| 373 | |||
| 72 | f9daq | 374 | if( !(GetIntersection(&intersect, in) == 1) ) |
| 375 | return 0; |
||
| 376 | |||
| 377 | *intersection = intersect; |
||
| 378 | if( !IsVectorIn(intersect) ) |
||
| 379 | return 0; |
||
| 380 | |||
| 381 | // --------------- Fresnel ---------------------------------------------------- |
||
| 382 | // R_f = a_te * R_te + a_tm * R_tm |
||
| 383 | // e - electrical/perependicular |
||
| 384 | // m - magnetic polarization/parallel |
||
| 385 | double r_te=0; |
||
| 386 | double r_tm=0; |
||
| 387 | double R_te=0; // s reflection coefficient |
||
| 388 | double R_tm=0; // p reflection coefficient |
||
| 389 | double R_f = 0.0; |
||
| 390 | double a_te = 0.0; // s-wave amplitude, cos Alpha |
||
| 391 | double a_tm = 0.0; // p-wave amplitude, sin Alpha |
||
| 392 | TVector3 v_te; // unit s-polarization vector |
||
| 393 | TVector3 v_tm; // unit p-polarization vector |
||
| 394 | TVector3 v_tm_t;// transmited polarization parallel with the plane of incidence |
||
| 73 | f9daq | 395 | TVector3 pol_t = in.GetP(); // incident polarization |
| 72 | f9daq | 396 | int sign_n; // sign of normal direction vs. inbound ray |
| 397 | double cosTN; // debug |
||
| 398 | |||
| 73 | f9daq | 399 | // Decomposition of incident polarization vector |
| 400 | // using unit vectors v_tm & v_te |
||
| 401 | // in a_tm and a_te components |
||
| 402 | //if(fresnel) { |
||
| 403 | // s-polarization unit vector v_te |
||
| 72 | f9daq | 404 | // is in the plane orthogonal to the plane of incidence |
| 405 | // defined as the plane spanned by |
||
| 406 | // incident surface vector n and wave vector k |
||
| 73 | f9daq | 407 | // k in this notation is in.GetK() |
| 408 | v_te = n.Cross(in.GetK()); |
||
| 72 | f9daq | 409 | v_te = v_te.Unit(); |
| 73 | f9daq | 410 | v_tm = -v_te.Cross(in.GetK()); |
| 72 | f9daq | 411 | v_tm = v_tm.Unit(); |
| 412 | if(dbg) { |
||
| 413 | printf(" v_te = "); printv(v_te); |
||
| 414 | printf(" v_tm = "); printv(v_tm); |
||
| 415 | } |
||
| 416 | |||
| 417 | double cosAf = v_te * in.GetP(); |
||
| 73 | f9daq | 418 | double alpha = acos(cosAf); |
| 419 | if(dbg) printf(" cosAf = %lf (Af = %lf)\n", cosAf, alpha*DEGREE); |
||
| 72 | f9daq | 420 | |
| 421 | a_te = cosAf; |
||
| 422 | a_tm = TMath::Sqrt(1 - cosAf*cosAf); |
||
| 423 | if(dbg) printf(" a_te = %lf, a_tm = %lf\n", a_te, a_tm); |
||
| 73 | f9daq | 424 | //} |
| 72 | f9daq | 425 | // ---------------------------------------------------------------------------- |
| 426 | |||
| 427 | // reflection probability |
||
| 428 | double p_ref = rand.Uniform(0.0, 1.0); |
||
| 429 | |||
| 430 | if(type == SURF_TOTAL) type = SURF_REFRA; |
||
| 431 | switch(type){ |
||
| 432 | // ---------------------------------------------------------------------------- |
||
| 433 | // --------------- refraction from n1 to n2 ----------------------------------- |
||
| 434 | // ---------------------------------------------------------------------------- |
||
| 435 | case SURF_REFRA: |
||
| 73 | f9daq | 436 | cosTi = in.GetK() * n; |
| 72 | f9daq | 437 | if(dbg) printf(" cosTi = %lf (Ti = %lf)\n", cosTi, TMath::ACos(cosTi)*DEGREE); |
| 438 | sign_n = -sign(cosTi); |
||
| 439 | if(dbg) printf(" sign_n = %d\n", sign_n); |
||
| 440 | cosTi = TMath::Abs(cosTi); |
||
| 441 | |||
| 442 | // Check if there can be total reflection: n1 > n2 |
||
| 443 | if(N1_N2(-sign_n) < 1.0) |
||
| 444 | cosTtotal = TMath::Sqrt( 1 - TMath::Power(N1_N2(-sign_n), 2) ); |
||
| 445 | else |
||
| 446 | cosTtotal = 0.0; |
||
| 447 | |||
| 448 | if(dbg) printf(" cosTtotal = %lf (Ttotal = %lf)\n", cosTtotal, TMath::ACos(cosTtotal)*DEGREE); |
||
| 449 | // reflection dependance on polarization missing |
||
| 450 | // reflection hardcoded to 0.96 |
||
| 451 | if (dbg) printf(" reflection probability = %f\n", p_ref); |
||
| 452 | |||
| 453 | // If n1>n2 and theta>thetaCritical, total reflection |
||
| 454 | if(cosTi < cosTtotal) { |
||
| 455 | if(dbg) printf(" TOTAL\n"); |
||
| 73 | f9daq | 456 | transmit = in.GetK() + sign_n*2*cosTi*n; |
| 72 | f9daq | 457 | |
| 458 | if(dbg) { |
||
| 459 | cosTN = TMath::Abs(transmit.Unit() * n); |
||
| 460 | printf(" cosTN = %lf (TN = %lf) (Abs(TN) = %lf)\n", cosTN, TMath::ACos(cosTN)*DEGREE, TMath::ACos(TMath::Abs(cosTN))*DEGREE); |
||
| 461 | } |
||
| 462 | out->Set(intersect, transmit); |
||
| 463 | |||
| 73 | f9daq | 464 | // Shift implemented, but only linear polarization is implemented |
| 465 | if (dbg) printf("CSurface: Propagate TOTAL\n"); |
||
| 466 | v_tm_t = -v_te.Cross(transmit); |
||
| 467 | v_tm_t = v_tm_t.Unit(); |
||
| 468 | // shift the p and s components |
||
| 469 | double n12 = N1_N2(-sign_n); |
||
| 470 | double deltaP = 2 * atan(sqrt(1 - cosTi*cosTi - pow(n12,2))/(pow(n12,2)*cosTi)); |
||
| 471 | double deltaS = 2 * atan(sqrt(1 - cosTi*cosTi - pow(n12,2))/cosTi); |
||
| 472 | double delta = deltaP - deltaS; |
||
| 473 | alpha += delta; |
||
| 474 | a_tm = sin(alpha); |
||
| 475 | a_te = cos(alpha); |
||
| 476 | if (dbg) printf(" deltaP = %f deltaS = %f; new a_tm = %f, a_te = %f", |
||
| 477 | deltaP, deltaS, a_tm, a_te); |
||
| 478 | pol_t = a_tm*v_tm_t + a_te*v_te; |
||
| 479 | if (dbg) printv(pol_t); |
||
| 480 | out->setPolarization(pol_t); |
||
| 481 | |||
| 72 | f9daq | 482 | return REFLECTION; |
| 483 | } else { |
||
| 484 | // reflection or refraction according to Fresnel equations |
||
| 485 | if(dbg) printf(" REFRACTION\n"); |
||
| 486 | if(dbg) printf(" N1_N2(sign_n) = %lf\n", N1_N2(sign_n)); |
||
| 487 | cosTt = TMath::Sqrt(1 - TMath::Power(N1_N2(sign_n), 2)*(1 - TMath::Power(cosTi, 2))); |
||
| 488 | if(dbg) printf(" cosTt = %lf (Tt = %lf) \n", cosTt, TMath::ACos(cosTt)*DEGREE); |
||
| 489 | |||
| 73 | f9daq | 490 | transmit = N1_N2(sign_n)*in.GetK() + sign_n*(N1_N2(sign_n)*cosTi - cosTt)*n; |
| 72 | f9daq | 491 | if(dbg) {printf(" transmit.Unit() = "); printv(transmit.Unit());} |
| 492 | if(dbg) { |
||
| 493 | cosTN = transmit.Unit() * n; |
||
| 494 | printf(" cosTN = %lf (TN = %lf) (Abs(TN) = %lf)\n", cosTN, TMath::ACos(cosTN)*DEGREE, TMath::ACos(TMath::Abs(cosTN))*DEGREE); |
||
| 495 | } |
||
| 496 | |||
| 497 | //if(cosTi<=cosTtotal) cosTt = TMath::Sqrt(1 - TMath::Power(N1_N2(sign_n), 2)*(1 - TMath::Power(cosTi, 2))); |
||
| 498 | //if(fresnel) { |
||
| 499 | r_te = (n1*cosTi - n2*cosTt)/(n1*cosTi + n2*cosTt); // transverse |
||
| 500 | r_tm = (n2*cosTi - n1*cosTt)/(n1*cosTt + n2*cosTi); // paralel |
||
| 501 | |||
| 502 | if(dbg) printf(" r_te = %lf, r_tm = %lf\n", r_te, r_tm); |
||
| 503 | |||
| 504 | // transmited polarization |
||
| 505 | v_tm_t = -v_te.Cross(transmit); |
||
| 506 | v_tm_t = v_tm_t.Unit(); |
||
| 73 | f9daq | 507 | pol_t = a_te*(1.0 - TMath::Abs(r_te))*v_te + a_tm*(1.0 - TMath::Abs(r_tm))*v_tm_t; |
| 72 | f9daq | 508 | |
| 509 | if(dbg) { |
||
| 510 | printf(" v_tm_t = "); printv(v_tm_t); |
||
| 511 | printf(" pol_t = "); printv(pol_t); |
||
| 512 | } |
||
| 513 | |||
| 71 | f9daq | 514 | // Fresnel coefficients |
| 72 | f9daq | 515 | R_te = TMath::Power(r_te, 2); |
| 516 | R_tm = TMath::Power(r_tm, 2); |
||
| 517 | R_f = a_te*a_te*R_te + a_tm*a_tm*R_tm; |
||
| 25 | f9daq | 518 | |
| 72 | f9daq | 519 | if (dbg) printf(" R_te = %lf, R_tm = %lf, R_f = %lf\n", R_te, R_tm, R_f); |
| 520 | } |
||
| 25 | f9daq | 521 | |
| 72 | f9daq | 522 | if(p_ref >= R_f) { // se lomi |
| 523 | if (dbg) printf(" SURFACE REFRACTED. Return.\n"); |
||
| 524 | out->Set(intersect, transmit); |
||
| 73 | f9daq | 525 | out->setPolarization(pol_t); |
| 72 | f9daq | 526 | return REFRACTION; |
| 527 | } else { // se odbije |
||
| 528 | if (dbg) printf(" SURFACE REFLECTED. p_ref=%f, R_f=%f\n", p_ref, R_f); |
||
| 73 | f9daq | 529 | transmit = in.GetK() + sign_n*2*cosTi*n; |
| 530 | TVector3 v_tm_r = -v_te.Cross(transmit); |
||
| 531 | v_tm_r = v_tm_r.Unit(); |
||
| 72 | f9daq | 532 | out->Set(intersect, transmit); |
| 73 | f9daq | 533 | //pol_t = -in.GetP() + sign_n*2*cosTi*n; |
| 534 | pol_t = a_te*(1.0 - TMath::Abs(r_te))*v_te + a_tm*(1.0 - TMath::Abs(r_tm))*v_tm_r; |
||
| 535 | out->setPolarization(pol_t); |
||
| 72 | f9daq | 536 | return REFLECTION; |
| 537 | } |
||
| 538 | |||
| 539 | //} |
||
| 540 | break; |
||
| 541 | |||
| 542 | // ---------------------------------------------------------------------------- |
||
| 543 | // --------------- reflection at "reflection" probability --------------------- |
||
| 544 | // ---------------------------------------------------------------------------- |
||
| 545 | case SURF_REFLE: |
||
| 546 | p_ref = rand.Uniform(0.0, 1.0); |
||
| 547 | if(p_ref < reflection) { // se odbije |
||
| 73 | f9daq | 548 | cosTi = in.GetK() * n; |
| 549 | transmit = in.GetK() - 2*cosTi*n; |
||
| 72 | f9daq | 550 | out->Set(intersect, transmit); |
| 551 | return REFLECTION; //sdhfvjhsdbfjhsdbcvjhsb |
||
| 552 | } else { // se ne odbije |
||
| 73 | f9daq | 553 | transmit = in.GetK(); |
| 72 | f9daq | 554 | out->Set(intersect, transmit); |
| 555 | return ABSORBED; |
||
| 556 | } |
||
| 557 | break; |
||
| 558 | |||
| 559 | // total reflection from n1 to n2 with R probbability |
||
| 560 | case SURF_IMPER: |
||
| 561 | p_ref = rand.Uniform(0.0, 1.0); |
||
| 562 | if(p_ref < reflection) { // se odbije |
||
| 73 | f9daq | 563 | cosTi = in.GetK() * n; |
| 72 | f9daq | 564 | if(TMath::Abs(cosTi) < cosTtotal) { // totalni odboj |
| 73 | f9daq | 565 | transmit = in.GetK() - 2*cosTi*n; |
| 72 | f9daq | 566 | out->Set(intersect, transmit); |
| 567 | } else { // ni tot. odboja |
||
| 73 | f9daq | 568 | transmit = in.GetK(); |
| 72 | f9daq | 569 | out->Set(intersect, transmit); |
| 570 | return ABSORBED; |
||
| 571 | } |
||
| 572 | } else { // se ne odbije |
||
| 73 | f9daq | 573 | transmit = in.GetK(); |
| 72 | f9daq | 574 | out->Set(intersect, transmit); |
| 575 | return ABSORBED; |
||
| 576 | } |
||
| 577 | break; |
||
| 578 | |||
| 579 | default: |
||
| 580 | *out = in; |
||
| 581 | break; |
||
| 582 | } |
||
| 583 | |||
| 584 | return REFRACTION; |
||
| 25 | f9daq | 585 | } |
| 586 | |||
| 72 | f9daq | 587 | Guide::Guide(TVector3 center0, DetectorParameters ¶meters) : |
| 588 | _d(parameters.getD()), |
||
| 589 | _n1(parameters.getN1()), |
||
| 590 | _n2(parameters.getN2()), |
||
| 591 | _n3(parameters.getN3()), |
||
| 592 | _r(c_reflectivity), |
||
| 593 | _absorption(0), |
||
| 594 | _A(0), |
||
| 595 | _badCoupling(parameters.badCoupling()) |
||
| 25 | f9daq | 596 | { |
| 72 | f9daq | 597 | double t; |
| 598 | TDatime now; |
||
| 599 | rand.SetSeed(now.Get()); |
||
| 600 | center = center0; |
||
| 601 | double b = parameters.getB(); |
||
| 602 | double a = parameters.getA(); |
||
| 603 | // if PlateOn, then n0 = n3 (optical grease), else = n1 (air) |
||
| 604 | //double n0 = (parameters.getPlateOn() ? parameters.getN3(): n1); |
||
| 605 | double n0 = (parameters.getPlateOn() ? _n2 : _n1); |
||
| 606 | int fresnel = parameters.getFresnel(); |
||
| 25 | f9daq | 607 | |
| 72 | f9daq | 608 | // light guide edges |
| 609 | t = b/2.0; |
||
| 610 | vodnik_edge[0].SetXYZ(0.0, t,-t); |
||
| 611 | vodnik_edge[1].SetXYZ(0.0, t, t); |
||
| 612 | vodnik_edge[2].SetXYZ(0.0,-t, t); |
||
| 613 | vodnik_edge[3].SetXYZ(0.0,-t,-t); |
||
| 614 | t = a/2.0; |
||
| 615 | vodnik_edge[4].SetXYZ(_d, t,-t); |
||
| 616 | vodnik_edge[5].SetXYZ(_d, t, t); |
||
| 617 | vodnik_edge[6].SetXYZ(_d,-t, t); |
||
| 618 | vodnik_edge[7].SetXYZ(_d,-t,-t); |
||
| 25 | f9daq | 619 | |
| 72 | f9daq | 620 | for(int i = 0; i<8; i++) vodnik_edge[i] += center; |
| 25 | f9daq | 621 | |
| 72 | f9daq | 622 | // light guide surfaces |
| 623 | s_side[0] = new CSurface(SURF_REFRA, vodnik_edge, n0, _n2, _r); |
||
| 624 | s_side[0]->FlipN(); |
||
| 625 | |||
| 626 | s_side[1] = new CSurface(SURF_REFRA, vodnik_edge[3], vodnik_edge[2], |
||
| 627 | vodnik_edge[6], vodnik_edge[7], _n2, _n1, _r); |
||
| 628 | s_side[2] = new CSurface(SURF_REFRA, vodnik_edge[2], vodnik_edge[1], |
||
| 629 | vodnik_edge[5], vodnik_edge[6], _n2, _n1, _r); |
||
| 630 | s_side[3] = new CSurface(SURF_REFRA, vodnik_edge[1], vodnik_edge[0], |
||
| 631 | vodnik_edge[4], vodnik_edge[5], _n2, _n1, _r); |
||
| 632 | s_side[4] = new CSurface(SURF_REFRA, vodnik_edge[0], vodnik_edge[3], |
||
| 633 | vodnik_edge[7], vodnik_edge[4], _n2, _n1, _r); |
||
| 634 | // n3 - ref ind at the exit, grease, air |
||
| 635 | s_side[5] = new CSurface(SURF_REFRA, &vodnik_edge[4], _n2, _n3, _r); |
||
| 636 | s_side[5]->FlipN(); |
||
| 637 | // exit surface in the case of bad coupling |
||
| 638 | noCoupling = new CSurface(SURF_REFRA, &vodnik_edge[4], _n2, 1.0, _r); |
||
| 639 | noCoupling->FlipN(); |
||
| 640 | // grease = specific pattern area of coupling |
||
| 641 | TVector3 activePosition(center); |
||
| 642 | activePosition += TVector3(_d, 0, 0); |
||
| 643 | TVector3 normal(1,0,0); |
||
| 73 | f9daq | 644 | grease = new CPlaneR(activePosition, normal, 0.95*a/2.0); |
| 72 | f9daq | 645 | |
| 646 | if(fresnel) for(int i=0; i<6; i++) s_side[i]->SetFresnel(1); |
||
| 647 | |||
| 648 | // statistics histograms |
||
| 649 | hfate = (TH1F*)gROOT->FindObject("hfate"); if(hfate) delete hfate; |
||
| 650 | hfate = new TH1F("hfate", "Ray fate", 8, -3.5, 4.5); |
||
| 651 | (hfate->GetXaxis())->SetBinLabel(1, "Back Ref"); |
||
| 652 | (hfate->GetXaxis())->SetBinLabel(2, "No Ref"); |
||
| 653 | (hfate->GetXaxis())->SetBinLabel(3, "Refrac"); |
||
| 654 | (hfate->GetXaxis())->SetBinLabel(4, "LG Miss"); |
||
| 655 | (hfate->GetXaxis())->SetBinLabel(5, "Exit"); |
||
| 656 | (hfate->GetXaxis())->SetBinLabel(6, "Enter"); |
||
| 657 | (hfate->GetXaxis())->SetBinLabel(7, "Rays"); |
||
| 658 | (hfate->GetXaxis())->SetBinLabel(8, "Absorb"); |
||
| 659 | |||
| 660 | hnodb_all = (TH1F*)gROOT->FindObject("hnodb_all"); if(hnodb_all) delete hnodb_all; |
||
| 661 | hnodb_all = new TH1F("hnodb_all", "", MAX_REFLECTIONS, -0.5, MAX_REFLECTIONS-0.5); |
||
| 662 | |||
| 663 | hnodb_exit = (TH1F*)gROOT->FindObject("hnodb_exit"); if(hnodb_exit) delete hnodb_exit; |
||
| 664 | hnodb_exit = new TH1F("hnodb_exit", "", MAX_REFLECTIONS, -0.5, MAX_REFLECTIONS-0.5); |
||
| 665 | |||
| 666 | int nBins = nch + 1; |
||
| 667 | hin = (TH2F*)gROOT->FindObject("hin"); if(hin) delete hin; |
||
| 668 | hin = new TH2F("hin", ";x [mm]; y[mm]", nBins, -b/2.0, +b/2.0, nBins, -b/2.0, +b/2.0); |
||
| 669 | |||
| 670 | hout = (TH2F*)gROOT->FindObject("hout"); if(hout) delete hout; |
||
| 671 | hout = new TH2F("hout", ";x [mm];y [mm]", nBins, -a/2.0, +a/2.0, nBins, -a/2.0, +a/2.0); |
||
| 25 | f9daq | 672 | } |
| 673 | //----------------------------------------------------------------------------- |
||
| 674 | // Sledi zarku skozi vodnik. Vrne: |
||
| 675 | // 0, ce zgresi vstopno ploskev |
||
| 676 | // 1, ce zadane izstopno ploskev |
||
| 677 | // -1, ce se v vodniku ne odbije totalno |
||
| 678 | // 2, enter the light guide, bin 2 of hfate = refraction |
||
| 679 | // -2, ce se ne odbije zaradi koncnega R stranic |
||
| 680 | // -3, ce se odbije nazaj in gre nazaj ven skozi sprednjo ploskev |
||
| 681 | // +4, ce se absorbira v materialu |
||
| 682 | Fate Guide::PropagateRay(CRay in, CRay *out, int *n_points, TVector3 *points) |
||
| 683 | { |
||
| 684 | if (dbg) printf("--- GUIDE::PropagateRay ---\n"); |
||
| 72 | f9daq | 685 | // ray0 - incident ray |
| 686 | // ray1 - trans/refl ray |
||
| 25 | f9daq | 687 | CRay ray0; |
| 688 | CRay ray1; |
||
| 689 | TVector3 vec0, vec1; |
||
| 690 | int inters_i = 0; |
||
| 72 | f9daq | 691 | |
| 692 | ray0 = in; |
||
| 693 | int n_odb = 0; |
||
| 694 | int last_hit = 0; |
||
| 695 | int propagation = 0; |
||
| 696 | int result = s_side[0]->PropagateRay(ray0, &ray1, &vec1); |
||
| 697 | if( !(result) ) { |
||
| 698 | // ce -NI- presecisca z vstopno |
||
| 699 | if (dbg) printf(" GUIDE: missed the light guide\n"); |
||
| 700 | fate = missed; |
||
| 701 | //hfate->Fill(0); |
||
| 702 | } else if(result == REFLECTION) { |
||
| 703 | if (dbg) printf(" REFLECTED on the entry surface!\n"); |
||
| 704 | fate = backreflected; |
||
| 705 | //hfate->Fill(-3); |
||
| 706 | } else { |
||
| 707 | if (dbg) printf(" GUIDE: ray entered\n"); |
||
| 708 | points[0] = ray1.GetR(); |
||
| 709 | hfate->Fill(enter); // enter |
||
| 710 | hin->Fill(vec1.y(), vec1.z()); |
||
| 711 | if (dbg) printf(" GUIDE: n_odb = %d\n", n_odb); |
||
| 712 | |||
| 713 | while (n_odb++ < MAX_REFLECTIONS) { |
||
| 714 | if (dbg) printf(" GUIDE: Boundary test: %d\n",n_odb); |
||
| 715 | ray0 = ray1; |
||
| 716 | vec0 = vec1; |
||
| 717 | propagation = 11; |
||
| 718 | for(inters_i=0; inters_i<6; inters_i++) { |
||
| 719 | if (dbg) printf(" GUIDE: Test intersection with surface %d \n", inters_i); |
||
| 720 | if( inters_i != last_hit) { |
||
| 721 | int testBoundary = s_side[inters_i]->TestIntersection(&vec1, ray1); |
||
| 722 | if( testBoundary ) { |
||
| 723 | if (dbg) printf(" GUIDE: ray intersects with LG surface %d\n",inters_i); |
||
| 724 | break; |
||
| 725 | } |
||
| 726 | } |
||
| 727 | } |
||
| 728 | points[n_odb] = vec1; |
||
| 729 | if(inters_i == 0) { |
||
| 730 | fate = backreflected; |
||
| 731 | //hfate->Fill(backreflected); |
||
| 732 | break; |
||
| 733 | } // backreflection |
||
| 734 | |||
| 735 | // the passage is possible, test propagation |
||
| 736 | propagation = s_side[inters_i]->PropagateRay(ray0, &ray1, &vec1); |
||
| 737 | |||
| 738 | if (dbg) printf(" GUIDE: surface = %d, propagation = %d\n", inters_i, propagation); |
||
| 739 | |||
| 740 | |||
| 741 | if(propagation == ABSORBED) { |
||
| 742 | fate = noreflection; |
||
| 743 | break; |
||
| 744 | } //refraction due to finite reflectivity |
||
| 745 | |||
| 746 | if(inters_i == 5) { |
||
| 747 | if (_badCoupling) { |
||
| 748 | TVector3 hitVector(0,0,0); |
||
| 749 | bool hitActive = grease->TestIntersection(&hitVector, ray0); |
||
| 750 | if (hitActive and dbg) printf(" GUIDE: hit grease\n"); |
||
| 751 | if (!hitActive) propagation = noCoupling->PropagateRay(ray0, &ray1, &vec1); |
||
| 752 | } |
||
| 753 | // check on which side the vector is? |
||
| 73 | f9daq | 754 | TVector3 ray = ray1.GetK(); |
| 72 | f9daq | 755 | TVector3 exitNormal = s_side[5]->GetN(); |
| 756 | if (dbg) printf("ray*n_5 = %lf\n", ray*exitNormal); |
||
| 757 | if (ray*exitNormal > 0) { |
||
| 758 | if (dbg) printf(" GUIDE: ray is backreflected from exit window.\n"); |
||
| 759 | fate = backreflected; |
||
| 760 | n_odb++; |
||
| 761 | points[n_odb] = vec1; |
||
| 762 | ray0 = ray1; |
||
| 763 | break; |
||
| 764 | } |
||
| 765 | fate = hitExit; |
||
| 766 | hout->Fill(vec1.y(), vec1.z()); |
||
| 767 | hnodb_exit->Fill(n_odb-1); |
||
| 768 | n_odb++; |
||
| 769 | points[n_odb] = vec1; |
||
| 770 | ray0 = ray1; |
||
| 771 | break; |
||
| 772 | } |
||
| 773 | |||
| 774 | if(propagation == REFRACTION) { |
||
| 775 | fate = refracted; |
||
| 776 | n_odb++; |
||
| 777 | points[n_odb] = vec1; |
||
| 778 | ray0 = ray1; |
||
| 779 | break; |
||
| 780 | } // no total reflection when should be |
||
| 781 | |||
| 782 | last_hit = inters_i; |
||
| 783 | } |
||
| 784 | } |
||
| 785 | |||
| 786 | //--- material absorption --- |
||
| 787 | if(_absorption) { |
||
| 788 | double travel = 0.0; |
||
| 789 | if (dbg) printf("n_odb = %d\n", n_odb); |
||
| 790 | for(int point = 0; point < n_odb-1; point++) { |
||
| 791 | travel += (points[point] - points[point+1]).Mag(); |
||
| 792 | if (dbg) printf("travel = %lf\n", travel); |
||
| 793 | } |
||
| 794 | double T_abs = TMath::Exp(-travel/_A); |
||
| 795 | if(dbg)printf("T_abs = %lf\n", T_abs); |
||
| 796 | double p_abs = rand.Uniform(0.0, 1.0); |
||
| 797 | if(dbg)printf("p_abs = %lf\n", p_abs); |
||
| 798 | |||
| 799 | if(p_abs > T_abs) fate = absorbed; // absorption |
||
| 800 | } |
||
| 801 | //--- material absorption --- |
||
| 802 | |||
| 803 | hfate->Fill(fate); |
||
| 804 | hfate->Fill(rays); |
||
| 805 | hnodb_all->Fill(n_odb-2); |
||
| 806 | *n_points = n_odb+1; |
||
| 807 | *out = ray0; |
||
| 808 | return fate; |
||
| 25 | f9daq | 809 | } |
| 810 | void Guide::GetVFate(int *out) |
||
| 811 | { |
||
| 72 | f9daq | 812 | for(int i=0;i<7;i++) out[i] = (int)hfate->GetBinContent(i+1); |
| 25 | f9daq | 813 | } |
| 814 | void Guide::Draw(int color, int width) |
||
| 815 | { |
||
| 72 | f9daq | 816 | for(int i = 0; i<6; i++) s_side[i]->Draw(color, width); |
| 25 | f9daq | 817 | } |
| 818 | void Guide::DrawSkel(int color, int width) |
||
| 819 | { |
||
| 72 | f9daq | 820 | TPolyLine3D *line3d = new TPolyLine3D(2); |
| 821 | line3d->SetLineWidth(width); line3d->SetLineColor(color); |
||
| 25 | f9daq | 822 | |
| 72 | f9daq | 823 | for(int i=0; i<4; i++) { |
| 824 | line3d->SetPoint(0, vodnik_edge[i+0].x(), vodnik_edge[i+0].y(), vodnik_edge[i+0].z()); |
||
| 825 | line3d->SetPoint(1, vodnik_edge[i+4].x(), vodnik_edge[i+4].y(), vodnik_edge[i+4].z()); |
||
| 826 | line3d->DrawClone(); |
||
| 827 | } |
||
| 25 | f9daq | 828 | } |
| 829 | |||
| 73 | f9daq | 830 | |
| 25 | f9daq | 831 | int CPlaneR::TestIntersection(TVector3 *vec, CRay ray) |
| 832 | { |
||
| 72 | f9daq | 833 | double num, den; //stevec, imenovalec |
| 834 | double t; |
||
| 835 | TVector3 tmp; |
||
| 25 | f9daq | 836 | |
| 72 | f9daq | 837 | if(dbg) printf("---> CPlaneR::TestIntersection <---\n"); |
| 838 | if(dbg) {printf("c = "); printv(center); printf(" | n = "); printv(n); printf("\n");} |
||
| 25 | f9daq | 839 | |
| 72 | f9daq | 840 | double D = - n*center; |
| 841 | num = n*ray.GetR() + D; |
||
| 73 | f9daq | 842 | den = n*ray.GetK(); |
| 72 | f9daq | 843 | |
| 844 | if(dbg) printf("D = %.4lf | num = %.4lf | den = %.4lf\n", D, num, den); |
||
| 845 | |||
| 846 | if(TMath::Abs(den) < MARGIN) { |
||
| 847 | if(TMath::Abs(num) < MARGIN) |
||
| 848 | return 0; |
||
| 849 | else |
||
| 850 | return 0; |
||
| 851 | } |
||
| 852 | |||
| 853 | t = num / den; |
||
| 854 | |||
| 855 | if(dbg) printf("t = %.4lf | ", t); |
||
| 856 | |||
| 857 | tmp = ray.GetR(); |
||
| 73 | f9daq | 858 | tmp -= t*ray.GetK(); |
| 72 | f9daq | 859 | *vec = tmp; |
| 860 | |||
| 861 | if(dbg) {printv(tmp); printf(" | Rv = %.4lf <> R = %.4lf\n", ((tmp - center).Mag()), _r);} |
||
| 862 | |||
| 863 | |||
| 864 | if( ((tmp - center).Mag()) < _r ) |
||
| 865 | return 1; |
||
| 866 | else |
||
| 867 | return 0; |
||
| 25 | f9daq | 868 | } |
| 73 | f9daq | 869 | |
| 25 | f9daq | 870 | void CPlaneR::Draw(int color, int width) |
| 871 | { |
||
| 72 | f9daq | 872 | const int NN = 32; |
| 873 | double phi, x, y; |
||
| 25 | f9daq | 874 | |
| 72 | f9daq | 875 | TPolyLine3D *arc; |
| 876 | arc = new TPolyLine3D(NN+1); |
||
| 877 | arc->SetLineWidth(width); |
||
| 878 | arc->SetLineColor(color); |
||
| 879 | |||
| 880 | for(int i=0; i<=NN; i++) { |
||
| 881 | phi = i*2.0*TMath::Pi()/NN; |
||
| 882 | x = _r*TMath::Cos(phi); |
||
| 883 | y = _r*TMath::Sin(phi); |
||
| 884 | arc->SetPoint(i, center.x(), x, y); |
||
| 885 | } |
||
| 886 | arc->Draw(); |
||
| 25 | f9daq | 887 | } |
| 888 | |||
| 889 | |||
| 890 | CDetector::CDetector(TVector3 center0, DetectorParameters& parameters) : |
||
| 72 | f9daq | 891 | center(center0), |
| 892 | glass_on(parameters.getGlassOn()), |
||
| 893 | glass_d(parameters.getGlassD()), |
||
| 894 | col_in(2), |
||
| 895 | col_lg(8), |
||
| 896 | col_out(4), |
||
| 897 | col_rgla(6), |
||
| 898 | col_LG(1), |
||
| 899 | col_glass(4), |
||
| 900 | col_active(7), |
||
| 901 | guide_on(parameters.getGuideOn()), |
||
| 902 | guide(new Guide(center0, parameters)), |
||
| 903 | plate(new Plate(parameters)), |
||
| 904 | _plateWidth(parameters.getPlateWidth()), |
||
| 905 | _plateOn(parameters.getPlateOn()), |
||
| 906 | offsetY(parameters.getOffsetY()), |
||
| 907 | offsetZ(parameters.getOffsetZ()) |
||
| 908 | { |
||
| 909 | // }; |
||
| 910 | |||
| 911 | //----------------------------------------------------------------------------- |
||
| 912 | //void CDetector::Init() |
||
| 913 | //{ |
||
| 25 | f9daq | 914 | double d = parameters.getD(); |
| 72 | f9daq | 915 | double x_offset; |
| 916 | if(guide_on) x_offset = center.x(); |
||
| 917 | else x_offset = center.x() - d; |
||
| 918 | |||
| 919 | double b = parameters.getB(); |
||
| 920 | //double n1 = parameters.getN1(); |
||
| 921 | //double n2 = parameters.getN2(); |
||
| 922 | double n3 = parameters.getN3(); |
||
| 923 | double reflectivity = c_reflectivity; |
||
| 924 | double x_gap = parameters.getGap().X(); |
||
| 925 | double y_gap = parameters.getGap().Y(); |
||
| 926 | double z_gap = parameters.getGap().Z(); |
||
| 927 | |||
| 928 | // additional glass between at top of SiPM |
||
| 929 | // example: epoxy n=1.60 |
||
| 930 | double n4 = 1.57; |
||
| 931 | TVector3 plane_v[4]; |
||
| 932 | int nBins = nch + 1; |
||
| 933 | double p_size = b/2.0; |
||
| 934 | plane_v[0].SetXYZ(x_offset+d+glass_d, y_gap + p_size, z_gap - p_size); |
||
| 935 | plane_v[1].SetXYZ(x_offset+d+glass_d, y_gap + p_size, z_gap + p_size); |
||
| 936 | plane_v[2].SetXYZ(x_offset+d+glass_d, y_gap - p_size, z_gap + p_size); |
||
| 937 | plane_v[3].SetXYZ(x_offset+d+glass_d, y_gap - p_size, z_gap - p_size); |
||
| 938 | glass = new CSurface(SURF_REFRA, plane_v, n3, n4, reflectivity); |
||
| 939 | glass->FlipN(); |
||
| 940 | |||
| 941 | // additional circular glass between LG and SiPM |
||
| 942 | glass_circle = new CPlaneR(TVector3(x_offset+d+glass_d, y_gap, z_gap), TVector3(-1.0, 0.0, 0.0), b); |
||
| 943 | |||
| 944 | hglass = (TH2F*)gROOT->FindObject("hglass"); if(hglass) delete hglass; |
||
| 945 | hglass = new TH2F("hglass", "", |
||
| 946 | nBins, y_gap - p_size, y_gap + p_size, |
||
| 947 | nBins, z_gap - p_size, z_gap + p_size); |
||
| 948 | |||
| 949 | // SiPM active surface |
||
| 950 | p_size = parameters.getActive()/2.0; |
||
| 951 | if (dbg) cout<<"SiPM active length "<<parameters.getActive()<<endl; |
||
| 952 | |||
| 953 | plane_v[0].SetXYZ(x_offset+d+x_gap, y_gap + p_size, z_gap - p_size); |
||
| 954 | plane_v[1].SetXYZ(x_offset+d+x_gap, y_gap + p_size, z_gap + p_size); |
||
| 955 | plane_v[2].SetXYZ(x_offset+d+x_gap, y_gap - p_size, z_gap + p_size); |
||
| 956 | plane_v[3].SetXYZ(x_offset+d+x_gap, y_gap - p_size, z_gap - p_size); |
||
| 957 | active = new CPlane4(plane_v); |
||
| 958 | //active surface in case of bad coupling is circle d=a |
||
| 959 | TVector3 activePosition(center); |
||
| 960 | activePosition += TVector3(d + x_gap, 0, 0); |
||
| 961 | TVector3 normal(1,0,0); |
||
| 962 | grease = new CPlaneR(activePosition, normal, 1.0*p_size); |
||
| 963 | |||
| 964 | hactive = (TH2F*)gROOT->FindObject("hactive"); if(hactive) delete hactive; |
||
| 965 | //hactive = new TH2F("hactive", "Active area hits", nBins, y_gap - p_size, y_gap + p_size, nBins, z_gap - p_size, z_gap + p_size); |
||
| 966 | hactive = new TH2F("hactive", ";x [mm];y [mm]", nBins, y_gap - p_size + offsetY, y_gap + p_size + offsetY, nBins, z_gap - p_size + offsetZ, z_gap + p_size + offsetZ); |
||
| 967 | |||
| 968 | p_size = b/2.0; |
||
| 969 | //p_size = 2.5; |
||
| 970 | //p_size = M*0.6; |
||
| 971 | hlaser = (TH2F*)gROOT->FindObject("hlaser"); if(hlaser) delete hlaser; |
||
| 972 | hlaser = new TH2F("hlaser", ";x [mm]; y [mm]", nBins, -p_size+offsetY, p_size+offsetY, nBins, -p_size+offsetZ, p_size+offsetZ); |
||
| 973 | |||
| 974 | // collection surface in SiPM plane |
||
| 975 | p_size = 1.4*b/2.0; |
||
| 976 | plane_v[0].SetXYZ(x_offset+d+x_gap, y_gap + p_size, z_gap - p_size); |
||
| 977 | plane_v[1].SetXYZ(x_offset+d+x_gap, y_gap + p_size, z_gap + p_size); |
||
| 978 | plane_v[2].SetXYZ(x_offset+d+x_gap, y_gap - p_size, z_gap + p_size); |
||
| 979 | plane_v[3].SetXYZ(x_offset+d+x_gap, y_gap - p_size, z_gap - p_size); |
||
| 980 | detector = new CPlane4(plane_v); |
||
| 981 | |||
| 982 | hdetector = (TH2F*)gROOT->FindObject("hdetector"); if(hdetector) delete hdetector; |
||
| 983 | //hdetector = new TH2F("hdetector", "Hits detector plane", nBins, y_gap - p_size, y_gap + p_size, nBins, z_gap - p_size, z_gap + p_size); |
||
| 984 | hdetector = new TH2F("hdetector", ";x [mm]; y [mm]", nBins, y_gap-p_size + offsetY, y_gap + p_size + offsetY, nBins, z_gap - p_size + offsetZ, z_gap + p_size + offsetZ); |
||
| 985 | |||
| 986 | /* |
||
| 25 | f9daq | 987 | window_circle = new CPlaneR(TVector3(x_offset+d+window_d, y_gap, z_gap), TVector3(-1.0, 0.0, 0.0), window_R); |
| 72 | f9daq | 988 | |
| 25 | f9daq | 989 | p_size = M*a; |
| 990 | plane_v[0].SetXYZ(x_offset+d+window_d, y_gap + p_size, z_gap - p_size); |
||
| 991 | plane_v[1].SetXYZ(x_offset+d+window_d, y_gap + p_size, z_gap + p_size); |
||
| 992 | plane_v[2].SetXYZ(x_offset+d+window_d, y_gap - p_size, z_gap + p_size); |
||
| 993 | plane_v[3].SetXYZ(x_offset+d+window_d, y_gap - p_size, z_gap - p_size); |
||
| 994 | window = new CSurface(SURF_REFRA, plane_v, n1, n2, reflectivity); window->FlipN(); |
||
| 72 | f9daq | 995 | |
| 25 | f9daq | 996 | hwindow = (TH2F*)gROOT->FindObject("hwindow"); if(hwindow) delete hwindow; |
| 997 | hwindow = new TH2F("hwindow", "Hits Window", nch, y_gap - window_R, y_gap + window_R, nch, z_gap - window_R, z_gap + window_R); |
||
| 72 | f9daq | 998 | */ |
| 999 | p_size = b/2.0; |
||
| 1000 | histoPlate = (TH2F*)gROOT->FindObject("histoPlate"); if(histoPlate) delete histoPlate; |
||
| 1001 | histoPlate = new TH2F("histoPlate", "Hits on glass plate", nBins, -p_size, +p_size, nBins, -p_size, +p_size); |
||
| 25 | f9daq | 1002 | } |
| 54 | f9daq | 1003 | |
| 25 | f9daq | 1004 | //----------------------------------------------------------------------------- |
| 1005 | // vrne 1 ce je zadel aktvino povrsino |
||
| 1006 | // vrne <1 ce jo zgresi |
||
| 1007 | int CDetector::Propagate(CRay in, CRay *out, int draw) |
||
| 1008 | // Sledi zarku skozi vodnik. Vrne: |
||
| 1009 | // 0, ce zgresi vstopno ploskev MISSED |
||
| 1010 | // 1, ce zadane izstopno ploskev HIT |
||
| 1011 | // -1, ce se v vodniku ne odbije totalno REFRACTED |
||
| 1012 | // 2, enter the light guide, bin 2 of hfate EXIT |
||
| 1013 | // -2, ce se ne odbije zaradi koncnega R stranic - no total reflection REFRACTED |
||
| 1014 | // -3, ce se odbije nazaj in gre nazaj ven skozi sprednjo ploskev BACK_REFLECTED |
||
| 1015 | // +4, ce se absorbira v materialu ABSORBED |
||
| 1016 | { |
||
| 1017 | if (dbg) printf("--- Detector::Propagate ---\n"); |
||
| 72 | f9daq | 1018 | //CRay *ray0 = new CRay; ray0->Set(in.GetR(), in.GetN()); ray0->SetColor(col_in); |
| 1019 | CRay *rayin = new CRay(in); |
||
| 1020 | rayin->SetColor(col_in); |
||
| 1021 | CRay *rayout = new CRay(in); |
||
| 1022 | rayout->SetColor(col_in); |
||
| 25 | f9daq | 1023 | |
| 72 | f9daq | 1024 | const int max_n_points = guide->GetMAXODB() + 2; |
| 1025 | TVector3 pointsPlate[max_n_points]; |
||
| 1026 | //TVector3 intersection; |
||
| 1027 | Fate fatePlate; |
||
| 1028 | int nPointsPlate; |
||
| 1029 | TPolyLine3D *line3d = new TPolyLine3D(2); |
||
| 1030 | line3d->SetLineWidth(1); |
||
| 1031 | line3d->SetLineColor(4); |
||
| 70 | f9daq | 1032 | |
| 72 | f9daq | 1033 | // Draw the plate and propagate the ray through |
| 1034 | // check if the ray should be reflected?? |
||
| 54 | f9daq | 1035 | |
| 72 | f9daq | 1036 | if(_plateOn) { |
| 71 | f9daq | 1037 | |
| 72 | f9daq | 1038 | fatePlate = plate->propagateRay(*rayin, rayout, &nPointsPlate, pointsPlate); |
| 1039 | if(draw) rayin->DrawS(center.x()- _plateWidth, -10.0); |
||
| 1040 | if(draw) { |
||
| 1041 | if(fatePlate == missed) { |
||
| 1042 | rayout->SetColor(col_in); |
||
| 1043 | rayout->DrawS(center.x() - _plateWidth, -10.0); |
||
| 1044 | } |
||
| 1045 | else if(fatePlate == backreflected){ |
||
| 73 | f9daq | 1046 | rayout->SetColor(kBlack); |
| 1047 | rayout->DrawS(center.x() - _plateWidth, 7.0); |
||
| 72 | f9daq | 1048 | if (dbg) printf("Backreflected at plate!\n"); |
| 1049 | } |
||
| 1050 | else { |
||
| 1051 | int p_i; |
||
| 1052 | for(p_i = 0; p_i < nPointsPlate-1; p_i++) { |
||
| 1053 | line3d->SetPoint(0, pointsPlate[p_i].x(), pointsPlate[p_i].y(), pointsPlate[p_i].z()); |
||
| 1054 | line3d->SetPoint(1, pointsPlate[p_i+1].x(), pointsPlate[p_i+1].y(), pointsPlate[p_i+1].z()); |
||
| 1055 | line3d->DrawClone(); |
||
| 1056 | } |
||
| 1057 | rayout->DrawS(pointsPlate[p_i].x(), -0.1); |
||
| 1058 | if(fatePlate == noreflection) { // lost on plate side |
||
| 1059 | rayout->SetColor(col_out); |
||
| 1060 | rayout->DrawS(pointsPlate[p_i].x(), 10.0); |
||
| 1061 | } |
||
| 1062 | } |
||
| 1063 | } |
||
| 1064 | |||
| 1065 | if(! (fatePlate == hitExit or fatePlate == refracted) ) { |
||
| 1066 | guide->GetHFate()->Fill(rays); |
||
| 1067 | if (dbg)printf("CDetector::propagate Simulated ray missed the entry surface!\n"); |
||
| 1068 | if (fatePlate == backreflected) |
||
| 1069 | guide->GetHFate()->Fill(fatePlate); // reflected back |
||
| 1070 | else |
||
| 1071 | guide->GetHFate()->Fill(noreflection); //lost on plate side |
||
| 1072 | return fatePlate; |
||
| 1073 | } |
||
| 1074 | |||
| 1075 | //Ray hits light guide |
||
| 1076 | histoPlate->Fill(pointsPlate[0].y(), pointsPlate[0].z()); // entry point |
||
| 1077 | |||
| 1078 | } |
||
| 1079 | else { |
||
| 1080 | //rayout = rayin; |
||
| 1081 | if(draw) rayout->DrawS(center.x(), -10.0); |
||
| 1082 | } |
||
| 1083 | |||
| 1084 | // If the ray is not reflected in the plate |
||
| 1085 | // Draw the light guide and propagate the ray through |
||
| 1086 | |||
| 1087 | //const int max_n_points = guide->GetMAXODB() + 2; |
||
| 1088 | TVector3 points[max_n_points]; |
||
| 1089 | TVector3 presecisce; |
||
| 1090 | |||
| 1091 | int n_points; |
||
| 1092 | int fate_glass; |
||
| 1093 | CRay *ray0 = new CRay(*rayout); |
||
| 1094 | // delete rayout; -> creates dangling reference when tries to delete ray0! |
||
| 1095 | //delete rayin; -> delete rayout! |
||
| 1096 | CRay *ray1 = new CRay; |
||
| 1097 | |||
| 1098 | fate = guide->PropagateRay(*ray0, ray1, &n_points, points); |
||
| 1099 | if (dbg) { |
||
| 1100 | if (fate == backreflected) printf("DETECTOR::backreflected\n"); |
||
| 1101 | } |
||
| 1102 | |||
| 1103 | line3d->SetLineColor(col_lg); |
||
| 1104 | int p_i; |
||
| 1105 | if(guide_on) { |
||
| 1106 | if(draw) { |
||
| 1107 | if(fate == missed) { |
||
| 1108 | if (dbg) printf("Detector: fate=missed\n"); |
||
| 1109 | TVector3 r = ray1->GetR(); |
||
| 73 | f9daq | 1110 | TVector3 k = ray1->GetK(); |
| 1111 | ray1->Set(r,k); |
||
| 72 | f9daq | 1112 | ray1->DrawS(center.x(), 10.0); |
| 1113 | } else { |
||
| 1114 | for(p_i = 0; p_i < n_points-1; p_i++) { |
||
| 1115 | line3d->SetPoint(0, points[p_i].x(), points[p_i].y(), points[p_i].z()); |
||
| 1116 | line3d->SetPoint(1, points[p_i+1].x(), points[p_i+1].y(), points[p_i+1].z()); |
||
| 1117 | line3d->DrawClone(); |
||
| 1118 | } |
||
| 1119 | if(fate != noreflection) { |
||
| 1120 | if (dbg) printf("Detector: fate != noreflection, fate = %d\n", (int)fate); |
||
| 1121 | if(glass_on) {/*if(fate == 1)*/ ray1->Draw(points[p_i].x(), center.x() + guide->getD() + glass_d);} |
||
| 1122 | else { |
||
| 1123 | ray1->SetColor(col_out); |
||
| 1124 | ray1->DrawS(points[p_i].x(), 10.0); |
||
| 1125 | } |
||
| 1126 | } |
||
| 1127 | } |
||
| 1128 | } |
||
| 1129 | |||
| 1130 | |||
| 1131 | if(! (fate == hitExit or fate == refracted) ) { |
||
| 1132 | if (dbg) printf("Detector: fate != hit, refracted\n"); |
||
| 1133 | *out = *ray1; |
||
| 1134 | delete ray0; |
||
| 1135 | delete ray1; |
||
| 1136 | delete rayout; |
||
| 1137 | delete rayin; |
||
| 1138 | return fate; |
||
| 1139 | } |
||
| 1140 | } else { |
||
| 1141 | if (dbg) printf("Detector: fate = hit or refracted"); |
||
| 1142 | ray1 = ray0; |
||
| 1143 | if(draw) { |
||
| 1144 | //double epoxy = parameters->getGlassD(); |
||
| 1145 | if(glass_on) ray1->Draw(center.x(), center.x() + glass_d); |
||
| 1146 | else ray1->DrawS(center.x(), 10.0); |
||
| 1147 | } |
||
| 1148 | } |
||
| 1149 | |||
| 1150 | fate = missed; // zgresil aktivno povrsino |
||
| 1151 | if(glass_on) { |
||
| 1152 | *ray0 = *ray1; |
||
| 1153 | ray1->SetColor(col_rgla); |
||
| 1154 | fate_glass = glass->PropagateRay(*ray0, ray1, &presecisce); |
||
| 1155 | if(fate_glass == REFRACTION) { |
||
| 1156 | hglass->Fill(presecisce.y(), presecisce.z()); |
||
| 1157 | if(draw) ray1->DrawS(presecisce.x(), 10.0); |
||
| 1158 | //if(active->TestIntersection(&presecisce, *ray1)) { |
||
| 1159 | //fate = hitExit; |
||
| 1160 | //hactive->Fill(offsetY + presecisce.y(), offsetZ + presecisce.z()); |
||
| 1161 | //hlaser->Fill((in.GetR()).y() + offsetY, (in.GetR()).z() + offsetZ); |
||
| 1162 | //} |
||
| 1163 | //if(detector->TestIntersection(&presecisce, *ray1)) |
||
| 1164 | //hdetector->Fill(offsetY + presecisce.y(), offsetZ + presecisce.z()); |
||
| 1165 | //} else if(fate_glass == REFLECTION) { |
||
| 1166 | else |
||
| 1167 | if(draw) ray1->DrawS(presecisce.x(), 10.0); |
||
| 1168 | } |
||
| 1169 | } |
||
| 1170 | |||
| 1171 | // Main test: ray and SiPM surface |
||
| 1172 | if(active->TestIntersection(&presecisce, *ray1)) { |
||
| 1173 | fate = hitExit; |
||
| 1174 | hactive->Fill(offsetY + presecisce.y(), offsetZ + presecisce.z()); |
||
| 1175 | hlaser->Fill((in.GetR()).y() + offsetY, (in.GetR()).z() + offsetZ); |
||
| 1176 | } |
||
| 1177 | // If it is on the same plane as SiPM |
||
| 1178 | if(detector->TestIntersection(&presecisce, *ray1)) |
||
| 1179 | hdetector->Fill(offsetY + presecisce.y(), offsetZ + presecisce.z()); |
||
| 1180 | //} |
||
| 1181 | //} else { |
||
| 1182 | //if(draw) ray1->Draw(presecisce.x(), center.x()+d+window_d); |
||
| 1183 | //} |
||
| 1184 | |||
| 1185 | *out = *ray1; |
||
| 1186 | delete ray0; |
||
| 1187 | delete ray1; |
||
| 1188 | delete rayout; |
||
| 1189 | delete rayin; |
||
| 1190 | return fate; |
||
| 25 | f9daq | 1191 | } |
| 73 | f9daq | 1192 | |
| 25 | f9daq | 1193 | void CDetector::Draw(int width) |
| 1194 | { |
||
| 72 | f9daq | 1195 | if(guide_on) { |
| 1196 | if( TMath::Abs(guide->getN1()-guide->getN2()) < MARGIN ) { |
||
| 1197 | if(_plateOn) plate->drawSkel(col_LG, width); |
||
| 1198 | guide->DrawSkel(col_LG, width); |
||
| 1199 | } |
||
| 1200 | else { |
||
| 1201 | if(_plateOn) plate->draw(4, width); |
||
| 1202 | guide->Draw(col_LG, width); |
||
| 1203 | } |
||
| 1204 | } |
||
| 1205 | |||
| 1206 | if(glass_on) glass_circle->Draw(col_glass, width); |
||
| 1207 | //window_circle->Draw(col_glass, width); |
||
| 1208 | active->Draw(col_active, width); |
||
| 25 | f9daq | 1209 | } |
| 1210 | |||
| 73 | f9daq | 1211 | |
| 25 | f9daq | 1212 | Plate::Plate(DetectorParameters& parameters) |
| 1213 | { |
||
| 1214 | TVector3 center = CENTER; |
||
| 1215 | const double b = parameters.getB(); |
||
| 1216 | const double n1 = parameters.getN1(); |
||
| 72 | f9daq | 1217 | const double n2 = parameters.getN2(); |
| 1218 | const double t = b/2.; |
||
| 1219 | const double plateWidth = parameters.getPlateWidth(); |
||
| 1220 | center.SetX( CENTER.X() - plateWidth ); |
||
| 1221 | |||
| 1222 | plate_edge[0].SetXYZ(0.0, t,-t); |
||
| 1223 | plate_edge[1].SetXYZ(0.0, t, t); |
||
| 1224 | plate_edge[2].SetXYZ(0.0,-t, t); |
||
| 1225 | plate_edge[3].SetXYZ(0.0,-t,-t); |
||
| 1226 | plate_edge[4].SetXYZ(plateWidth, t,-t); |
||
| 1227 | plate_edge[5].SetXYZ(plateWidth, t, t); |
||
| 1228 | plate_edge[6].SetXYZ(plateWidth,-t, t); |
||
| 1229 | plate_edge[7].SetXYZ(plateWidth,-t,-t); |
||
| 1230 | |||
| 1231 | for(int i = 0; i<8; i++) plate_edge[i] += center; |
||
| 1232 | |||
| 1233 | sides[0] = new CSurface(SURF_REFRA, plate_edge, n1, n2, c_reflectivity); |
||
| 1234 | sides[0]->FlipN(); |
||
| 1235 | |||
| 1236 | sides[1] = new CSurface(SURF_REFRA, plate_edge[3], plate_edge[2], plate_edge[6], plate_edge[7], n2, n2, c_reflectivity); |
||
| 1237 | sides[2] = new CSurface(SURF_REFRA, plate_edge[2], plate_edge[1], plate_edge[5], plate_edge[6], n2, n2, c_reflectivity); |
||
| 1238 | sides[3] = new CSurface(SURF_REFRA, plate_edge[1], plate_edge[0], plate_edge[4], plate_edge[5], n2, n2, c_reflectivity); |
||
| 1239 | sides[4] = new CSurface(SURF_REFRA, plate_edge[0], plate_edge[3], plate_edge[7], plate_edge[4], n2, n2, c_reflectivity); |
||
| 1240 | |||
| 1241 | sides[5] = new CSurface(SURF_REFRA, &plate_edge[4], n2, n2, c_reflectivity); |
||
| 1242 | sides[5]->FlipN(); |
||
| 1243 | |||
| 1244 | for(int i=0; i<6; i++) sides[i]->SetFresnel(1); |
||
| 25 | f9daq | 1245 | } |
| 1246 | |||
| 1247 | void Plate::draw(int color, int width) |
||
| 1248 | { |
||
| 72 | f9daq | 1249 | for(int i = 0; i<6; i++) sides[i]->Draw(color, width); |
| 25 | f9daq | 1250 | } |
| 1251 | |||
| 1252 | void Plate::drawSkel(int color, int width) |
||
| 1253 | { |
||
| 72 | f9daq | 1254 | TPolyLine3D line3d(2); |
| 1255 | line3d.SetLineWidth(width); |
||
| 1256 | line3d.SetLineColor(color); |
||
| 25 | f9daq | 1257 | |
| 72 | f9daq | 1258 | for(int i=0; i<4; i++) { |
| 1259 | line3d.SetPoint(0, plate_edge[i+0].x(), plate_edge[i+0].y(), plate_edge[i+0].z()); |
||
| 1260 | line3d.SetPoint(1, plate_edge[i+4].x(), plate_edge[i+4].y(), plate_edge[i+4].z()); |
||
| 1261 | line3d.DrawClone(); |
||
| 1262 | } |
||
| 25 | f9daq | 1263 | } |
| 1264 | |||
| 54 | f9daq | 1265 | Fate Plate::propagateRay(CRay in, CRay *out, int *n_points, TVector3 *points) |
| 25 | f9daq | 1266 | { |
| 1267 | CRay ray0; |
||
| 1268 | CRay ray1; |
||
| 1269 | TVector3 vec0, vec1; |
||
| 54 | f9daq | 1270 | Fate fate = enter; |
| 25 | f9daq | 1271 | int inters_i = 0; |
| 72 | f9daq | 1272 | |
| 1273 | ray0 = in; |
||
| 1274 | int n_odb = 0; |
||
| 1275 | int last_hit = 0; |
||
| 1276 | int propagation = 0; |
||
| 1277 | |||
| 1278 | int result = sides[0]->PropagateRay(ray0, &ray1, &vec1); |
||
| 1279 | if( !result ) { |
||
| 1280 | // ce -NI- presecisca z vstopno |
||
| 1281 | fate = missed; |
||
| 1282 | } else if(result == REFLECTION) { |
||
| 1283 | if (dbg) printf("PLATE: reflected\n"); |
||
| 73 | f9daq | 1284 | ray0 = ray1; |
| 72 | f9daq | 1285 | fate = backreflected; |
| 1286 | } else { |
||
| 1287 | points[0] = ray1.GetR(); |
||
| 1288 | //hfate->Fill(enter); |
||
| 1289 | //hin->Fill(vec1.y(), vec1.z()); |
||
| 1290 | while (n_odb++ < MAX_REFLECTIONS) { |
||
| 1291 | ray0 = ray1; |
||
| 1292 | vec0 = vec1; |
||
| 1293 | propagation = 11; |
||
| 1294 | for(inters_i=0; inters_i<6; inters_i++) { |
||
| 1295 | if( inters_i != last_hit) { |
||
| 1296 | if( sides[inters_i]->TestIntersection(&vec1, ray1) ) break; |
||
| 1297 | } |
||
| 1298 | } |
||
| 1299 | points[n_odb] = vec1; |
||
| 1300 | if(inters_i == 0) { |
||
| 73 | f9daq | 1301 | ray0 = ray1; |
| 72 | f9daq | 1302 | fate = backreflected; |
| 1303 | break;} // backreflection |
||
| 1304 | |||
| 1305 | propagation = sides[inters_i]->PropagateRay(ray0, &ray1, &vec1); |
||
| 1306 | if(inters_i == 5) { // successfull exit |
||
| 1307 | fate = hitExit; |
||
| 1308 | //hout->Fill(vec1.y(), vec1.z()); |
||
| 1309 | //hnodb_exit->Fill(n_odb-1); |
||
| 1310 | n_odb++; |
||
| 1311 | points[n_odb] = vec1; |
||
| 1312 | ray0 = ray1; |
||
| 1313 | break; |
||
| 1314 | } |
||
| 1315 | if(propagation == 1) { |
||
| 1316 | fate = noreflection; //at side |
||
| 1317 | n_odb++; |
||
| 1318 | points[n_odb] = vec1; |
||
| 1319 | ray0 = ray1; |
||
| 1320 | break;} // no total reflection when should be |
||
| 1321 | |||
| 1322 | if(propagation == -2) { |
||
| 1323 | fate = noreflection; |
||
| 1324 | break; |
||
| 1325 | } // absorption due to finite reflectivity |
||
| 1326 | |||
| 1327 | last_hit = inters_i; |
||
| 1328 | } |
||
| 1329 | } |
||
| 1330 | |||
| 1331 | *n_points = n_odb+1; |
||
| 1332 | *out = ray0; |
||
| 1333 | return fate; |
||
| 25 | f9daq | 1334 | }; |
| 1335 | |||
| 1336 |