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G4ErrorSurfaceTrajParam.cc
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25 //
26 //
27 // ------------------------------------------------------------
28 // GEANT 4 class implementation file
29 // ------------------------------------------------------------
30 //
31 
33 #include <iomanip>
34 
35 #include "G4ThreeVector.hh"
36 #include "G4GeometryTolerance.hh"
37 
38 //------------------------------------------------------------------------
41  const G4Vector3D& vecV, const G4Vector3D& vecW )
42 {
43  SetParameters( pos, mom, vecV, vecW );
44 }
45 
46 
47 //------------------------------------------------------------------------
50  const G4Plane3D& plane )
51 {
52  SetParameters( pos, mom, plane );
53 }
54 
55 //------------------------------------------------------------------------
58  const G4Plane3D& plane )
59 {
60  //--- Get two perpendicular vectors: first parallel X
61  // (unless normal is parallel to X, then take Y)
62 
65 
66  G4ThreeVector Xvec(1.,0.,0.);
67  G4Vector3D vecV = -Xvec.cross(plane.normal());
68  if( vecV.mag() < kCarTolerance )
69  {
70  G4ThreeVector Zvec(0.,0.,1.);
71  vecV = Zvec.cross(plane.normal());
72  }
73 
74  G4Vector3D vecW = plane.normal().cross( vecV );
75 
76  SetParameters( pos, mom, vecV, vecW );
77 }
78 
79 
80 //------------------------------------------------------------------------
83  const G4Vector3D& vecV, const G4Vector3D& vecW )
84 {
85  if( mom.mag() > 0. ) {
86  fDir = mom;
87  fDir /= mom.mag();
88  } else {
89  fDir = G4Vector3D(0.,0.,0.);
90  }
91  fVectorV = vecV / vecV.mag();
92  fVectorW = vecW / vecW.mag();
93  fInvP = 1./mom.mag();
94  G4ThreeVector momv(mom);
95  //check 3 vectors are ortogonal and right handed
96 
97  // now all 4 scalar memeber variables retain the signs
98  // fPV = momv.project( vecV ).mag();
99  // fPW = momv.project( vecW ).mag();
100  fPV = momv.dot( vecV );
101  fPW = momv.dot( vecW );
102 
103 
104  G4ThreeVector posv(pos);
105  // fV = posv.project( vecV ).mag();
106  // fW = posv.project( vecW ).mag();
107  fV = posv.dot( vecV );
108  fW = posv.dot( vecW );
109 }
110 
111 
112 //------------------------------------------------------------------------
113 std::ostream& operator<<(std::ostream& out, const G4ErrorSurfaceTrajParam& tp)
114 {
115  // long mode = out.setf(std::ios::fixed,std::ios::floatfield);
116 
117  // out << tp.theType;
118  // out << std::setprecision(5) << std::setw(10);
119  out << " InvP= " << tp.fInvP << " PV= " << tp.fPV
120  << " PW= " << tp.fPW << " V= " << tp.fV << " W= " << tp.fW << G4endl;
121  out << " vectorV direction= " << tp.fVectorV
122  << " vectorW direction= " << tp.fVectorW << G4endl;
123 
124  return out;
125 }