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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
>> 26 //
>> 27 // $Id: G4Trap.icc 69788 2013-05-15 12:06:57Z gcosmo $
>> 28 //
>> 29 // --------------------------------------------------------------------
>> 30 // GEANT 4 inline definitions file
>> 31 //
>> 32 // G4Trap.icc
>> 33 //
26 // Implementation of inline methods of G4Trap 34 // Implementation of inline methods of G4Trap
27 // ------------------------------------------- 35 // --------------------------------------------------------------------
28 36
29 inline 37 inline
30 G4double G4Trap::GetZHalfLength() const 38 G4double G4Trap::GetZHalfLength() const
31 { 39 {
32 return fDz ; 40 return fDz ;
33 } 41 }
34 42
35 inline 43 inline
36 G4ThreeVector G4Trap::GetSymAxis() const 44 G4ThreeVector G4Trap::GetSymAxis() const
37 { 45 {
38 G4double cosTheta = 1.0/std::sqrt(1+fTthetaC 46 G4double cosTheta = 1.0/std::sqrt(1+fTthetaCphi*fTthetaCphi +
39 fTthetaSphi*fTt 47 fTthetaSphi*fTthetaSphi) ;
40 48
41 return { fTthetaCphi*cosTheta, fTthetaSphi*c << 49 return G4ThreeVector(fTthetaCphi*cosTheta,
>> 50 fTthetaSphi*cosTheta,
>> 51 cosTheta) ;
42 } 52 }
43 53
44 inline 54 inline
45 G4double G4Trap::GetYHalfLength1() const 55 G4double G4Trap::GetYHalfLength1() const
46 { 56 {
47 return fDy1 ; 57 return fDy1 ;
48 } 58 }
49 59
50 inline 60 inline
51 G4double G4Trap::GetXHalfLength1() const 61 G4double G4Trap::GetXHalfLength1() const
52 { 62 {
53 return fDx1 ; 63 return fDx1 ;
54 } 64 }
55 65
56 inline 66 inline
57 G4double G4Trap::GetXHalfLength2() const 67 G4double G4Trap::GetXHalfLength2() const
58 { 68 {
59 return fDx2 ; 69 return fDx2 ;
60 } 70 }
61 71
62 inline 72 inline
63 G4double G4Trap::GetTanAlpha1() const 73 G4double G4Trap::GetTanAlpha1() const
64 { 74 {
65 return fTalpha1 ; 75 return fTalpha1 ;
66 } 76 }
67 77
68 inline 78 inline
69 G4double G4Trap::GetYHalfLength2() const 79 G4double G4Trap::GetYHalfLength2() const
70 { 80 {
71 return fDy2 ; 81 return fDy2 ;
72 } 82 }
73 83
74 inline 84 inline
75 G4double G4Trap::GetXHalfLength3() const 85 G4double G4Trap::GetXHalfLength3() const
76 { 86 {
77 return fDx3 ; 87 return fDx3 ;
78 } 88 }
79 89
80 inline 90 inline
81 G4double G4Trap::GetXHalfLength4() const 91 G4double G4Trap::GetXHalfLength4() const
82 { 92 {
83 return fDx4 ; 93 return fDx4 ;
84 } 94 }
85 95
86 inline 96 inline
87 G4double G4Trap::GetTanAlpha2() const 97 G4double G4Trap::GetTanAlpha2() const
88 { 98 {
89 return fTalpha2 ; 99 return fTalpha2 ;
90 } 100 }
91 101
92 inline 102 inline
93 TrapSidePlane G4Trap::GetSidePlane( G4int n ) 103 TrapSidePlane G4Trap::GetSidePlane( G4int n ) const
94 { 104 {
95 return fPlanes[n] ; 105 return fPlanes[n] ;
96 } 106 }
97 107
98 inline G4double G4Trap::GetPhi() const << 108 inline
99 { << 109 G4double G4Trap::GetFaceArea(const G4ThreeVector& p0, const G4ThreeVector& p1,
100 return std::atan2(fTthetaSphi,fTthetaCphi); << 110 const G4ThreeVector& p2, const G4ThreeVector& p3)
101 } <<
102 <<
103 inline G4double G4Trap::GetTheta() const <<
104 { 111 {
105 return std::atan(std::sqrt(fTthetaCphi*fTth << 112 G4double area = 0.5*((p1-p0).cross(p2-p1).mag()+(p3-p2).cross(p0-p3).mag());
106 +fTthetaSphi*fTt << 113 return area;
107 } 114 }
108 115
109 inline G4double G4Trap::GetAlpha1() const << 116 inline
110 { << 117 G4double G4Trap::GetCubicVolume()
111 return std::atan(fTalpha1); << 118 {
>> 119 if(fCubicVolume != 0.) {;}
>> 120 else { fCubicVolume = fDz*( (fDx1+fDx2+fDx3+fDx4)*(fDy1+fDy2)
>> 121 + (fDx4+fDx3-fDx2-fDx1)*(fDy2-fDy1)/3 ); }
>> 122 return fCubicVolume;
112 } 123 }
113 124
114 inline G4double G4Trap::GetAlpha2() const << 125 inline
115 { << 126 G4double G4Trap::GetSurfaceArea()
116 return std::atan(fTalpha2); << 127 {
>> 128 if(fSurfaceArea != 0.) {;}
>> 129 else
>> 130 {
>> 131 G4ThreeVector ba(fDx1-fDx2+fTalpha1*2*fDy1,2*fDy1,0);
>> 132 G4ThreeVector bc(2*fDz*fTthetaCphi-(fDx4-fDx2)+fTalpha2*fDy2-fTalpha1*fDy1,
>> 133 2*fDz*fTthetaSphi+fDy2-fDy1, 2*fDz);
>> 134 G4ThreeVector dc(-fDx4+fDx3+2*fTalpha2*fDy2, 2*fDy2,0);
>> 135 G4ThreeVector da(-2*fDz*fTthetaCphi-(fDx1-fDx3)-fTalpha1*fDy1+fTalpha2*fDy2,
>> 136 -2*fDz*fTthetaSphi-fDy1+fDy2,-2*fDz);
>> 137
>> 138 G4ThreeVector ef(fDx2-fDx1+2*fTalpha1*fDy1, 2*fDy1,0);
>> 139 G4ThreeVector eh(2*fDz*fTthetaCphi+fDx3-fDx1+fTalpha1*fDy1-fTalpha2*fDy2,
>> 140 2*fDz*fTthetaSphi-fDy2+fDy1,2*fDz);
>> 141 G4ThreeVector gh(fDx3-fDx4-2*fTalpha2*fDy2, -2*fDy2,0);
>> 142 G4ThreeVector gf(-2*fDz*fTthetaCphi+fDx2-fDx4+fTalpha1*fDy1-fTalpha2*fDy2,
>> 143 -2*fDz*fTthetaSphi+fDy1-fDy2,-2*fDz);
>> 144
>> 145 G4ThreeVector cr;
>> 146 cr = ba.cross(bc);
>> 147 G4double babc=cr.mag();
>> 148 cr = dc.cross(da);
>> 149 G4double dcda=cr.mag();
>> 150 cr = ef.cross(eh);
>> 151 G4double efeh=cr.mag();
>> 152 cr = gh.cross(gf);
>> 153 G4double ghgf=cr.mag();
>> 154
>> 155 fSurfaceArea = 2*fDy1*(fDx1+fDx2)+2*fDy2*(fDx3+fDx4)
>> 156 + (fDx1+fDx3)
>> 157 * std::sqrt(4*fDz*fDz+std::pow(fDy2-fDy1-2*fDz*fTthetaSphi,2))
>> 158 + (fDx2+fDx4)
>> 159 * std::sqrt(4*fDz*fDz+std::pow(fDy2-fDy1+2*fDz*fTthetaSphi,2))
>> 160 + 0.5*(babc+dcda+efeh+ghgf);
>> 161 }
>> 162 return fSurfaceArea;
117 } 163 }
118 164