[831] | 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 * |
---|
| 7 | // * conditions of the Geant4 Software License, included in the file * |
---|
| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
| 9 | // * include a list of copyright holders. * |
---|
| 10 | // * * |
---|
| 11 | // * Neither the authors of this software system, nor their employing * |
---|
| 12 | // * institutes,nor the agencies providing financial support for this * |
---|
| 13 | // * work make any representation or warranty, express or implied, * |
---|
| 14 | // * regarding this software system or assume any liability for its * |
---|
| 15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
| 16 | // * for the full disclaimer and the limitation of liability. * |
---|
| 17 | // * * |
---|
| 18 | // * This code implementation is the result of the scientific and * |
---|
| 19 | // * technical work of the GEANT4 collaboration. * |
---|
| 20 | // * By using, copying, modifying or distributing the software (or * |
---|
| 21 | // * any work based on the software) you agree to acknowledge its * |
---|
| 22 | // * use in resulting scientific publications, and indicate your * |
---|
| 23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
| 24 | // ******************************************************************** |
---|
| 25 | // |
---|
| 26 | // |
---|
| 27 | // $Id: G4Axis2Placement3D.cc,v 1.9 2006/06/29 18:41:09 gunter Exp $ |
---|
[850] | 28 | // GEANT4 tag $Name: HEAD $ |
---|
[831] | 29 | // |
---|
| 30 | // ---------------------------------------------------------------------- |
---|
| 31 | // GEANT 4 class source file |
---|
| 32 | // |
---|
| 33 | // G4Axis2Placement3D.cc |
---|
| 34 | // |
---|
| 35 | // ---------------------------------------------------------------------- |
---|
| 36 | |
---|
| 37 | #include "G4Axis2Placement3D.hh" |
---|
| 38 | |
---|
| 39 | //G4Axis2Placement3D |
---|
| 40 | G4Axis2Placement3D::G4Axis2Placement3D(){} |
---|
| 41 | G4Axis2Placement3D::~G4Axis2Placement3D(){} |
---|
| 42 | |
---|
| 43 | // copy constructor (used in STEPinterface module) |
---|
| 44 | // |
---|
| 45 | G4Axis2Placement3D::G4Axis2Placement3D(const G4Axis2Placement3D& place) |
---|
| 46 | : location(place.location), axis(place.axis), |
---|
| 47 | refDirection(place.refDirection), |
---|
| 48 | pX(place.pX), pY(place.pY), pZ(place.pZ), |
---|
| 49 | toPlacementCoordinates(place.toPlacementCoordinates), |
---|
| 50 | fromPlacementCoordinates(place.fromPlacementCoordinates) |
---|
| 51 | { |
---|
| 52 | } |
---|
| 53 | |
---|
| 54 | // assignment operator |
---|
| 55 | // |
---|
| 56 | G4Axis2Placement3D& |
---|
| 57 | G4Axis2Placement3D::operator=(const G4Axis2Placement3D& place) |
---|
| 58 | { |
---|
| 59 | if (&place == this) return *this; |
---|
| 60 | |
---|
| 61 | refDirection = place.refDirection; |
---|
| 62 | axis = place.axis; |
---|
| 63 | location = place.location; |
---|
| 64 | pX = place.pX; |
---|
| 65 | pY = place.pY; |
---|
| 66 | pZ = place.pZ; |
---|
| 67 | toPlacementCoordinates = place.toPlacementCoordinates; |
---|
| 68 | fromPlacementCoordinates = place.fromPlacementCoordinates; |
---|
| 69 | |
---|
| 70 | return *this; |
---|
| 71 | } |
---|
| 72 | |
---|
| 73 | /* everything below here is commented-out ... |
---|
| 74 | |
---|
| 75 | G4Axis2Placement3D::G4Axis2Placement3D(const G4ThreeVec Dir, |
---|
| 76 | const G4ThreeVec Axis, |
---|
| 77 | const G4Point3d Pt ) |
---|
| 78 | { |
---|
| 79 | dir=Dir; |
---|
| 80 | axis=Axis; |
---|
| 81 | srf_point=Pt; |
---|
| 82 | ComputeNormal(); |
---|
| 83 | G4Point3d Pt2 = Pt+Dir; |
---|
| 84 | G4Point3d Pt3 = Pt+Axis; |
---|
| 85 | G4Ray::CalcPlane3Pts(Pl, Pt, Pt2, Pt3); |
---|
| 86 | } |
---|
| 87 | |
---|
| 88 | G4Axis2Placement3D::G4Axis2Placement3D(const G4ThreeVec Dir, |
---|
| 89 | const G4ThreeVec Axis, |
---|
| 90 | const G4Point3d Pt1, |
---|
| 91 | const G4Point3d Pt2, |
---|
| 92 | const G4Point3d Pt3) |
---|
| 93 | { |
---|
| 94 | dir=Dir; |
---|
| 95 | axis=Axis; |
---|
| 96 | srf_point=Pt1; |
---|
| 97 | ComputeNormal(); |
---|
| 98 | G4Ray::CalcPlane3Pts(Pl, Pt1, Pt2, Pt3); |
---|
| 99 | } |
---|
| 100 | |
---|
| 101 | void |
---|
| 102 | G4Axis2Placement3D::ProjectPlacement(const G4Plane& Pl1, |
---|
| 103 | const G4Plane& Pl2) |
---|
| 104 | { |
---|
| 105 | Project(ProjectedDir, dir, Pl1, Pl2); |
---|
| 106 | Project(ProjectedAxis, axis, Pl1, Pl2); |
---|
| 107 | Project(ProjectedSrfPoint, srf_point, Pl1, Pl2); |
---|
| 108 | Project(ProjectedNormal, Normal, Pl1, Pl2); |
---|
| 109 | } |
---|
| 110 | |
---|
| 111 | void |
---|
| 112 | G4Axis2Placement3D::ComputeNormal() |
---|
| 113 | { |
---|
| 114 | |
---|
| 115 | if(dir == axis) |
---|
| 116 | Normal = dir; |
---|
| 117 | else |
---|
| 118 | { |
---|
| 119 | Normal.X(dir.Y()*axis.Z() - dir.Z()*axis.Y()); |
---|
| 120 | Normal.Y(dir.X()*axis.Z()- dir.Z()*axis.X()); |
---|
| 121 | Normal.Z(dir.X()*axis.Y() - dir.Y()*axis.X()); |
---|
| 122 | } |
---|
| 123 | } |
---|
| 124 | |
---|
| 125 | |
---|
| 126 | G4Point3d |
---|
| 127 | G4Axis2Placement3D::EvaluateIntersection(register const G4Ray& rray) |
---|
| 128 | { |
---|
| 129 | |
---|
| 130 | // s is solution, line is p + tq, n is G4Plane Normal, r is point on G4Plane |
---|
| 131 | // all parameters are pointers to arrays of three elements |
---|
| 132 | |
---|
| 133 | register G4double a, b, t; |
---|
| 134 | register const G4ThreeVec& RayDir = rray.GetDir(); |
---|
| 135 | register const G4Point3d& RayStart = rray.GetStart(); |
---|
| 136 | G4double dirx = RayDir.X(); |
---|
| 137 | G4double diry = RayDir.Y(); |
---|
| 138 | G4double dirz = RayDir.Z(); |
---|
| 139 | b = Normal.X() * dirx + Normal.Y() * diry + Normal.Z() * dirz; |
---|
| 140 | |
---|
| 141 | if (std::fabs(b) < 0.001)//== 0.0) |
---|
| 142 | // or some better test involving a small positive e |
---|
| 143 | { |
---|
| 144 | // G4cout << "\nLine is parallel to G4Plane.No Hit."; |
---|
| 145 | G4Point3d hit_point( kInfinity, kInfinity, kInfinity); |
---|
| 146 | return hit_point; |
---|
| 147 | } |
---|
| 148 | G4double startx = RayStart.X(); |
---|
| 149 | G4double starty = RayStart.Y(); |
---|
| 150 | G4double startz = RayStart.Z(); |
---|
| 151 | |
---|
| 152 | a = Normal.X() * (srf_point.X() - startx) |
---|
| 153 | + Normal.Y() * (srf_point.Y() - starty) |
---|
| 154 | + Normal.Z() * (srf_point.Z() - startz); |
---|
| 155 | |
---|
| 156 | t = a/b; |
---|
| 157 | |
---|
| 158 | // substitute t into line equation |
---|
| 159 | // to calculate final solution |
---|
| 160 | G4Point3d hit_point(startx + t * dirx,starty |
---|
| 161 | + t * diry,startz |
---|
| 162 | + t * dirz); |
---|
| 163 | |
---|
| 164 | // G4cout << "\nPLANE HIT POINT :" << hit_point.X() |
---|
| 165 | // << " " << hit_point.Y() << " " << hit_point.Z(); |
---|
| 166 | return hit_point; |
---|
| 167 | } |
---|
| 168 | */ |
---|