| Geant4 Cross Reference |
1 // -*- C++ -*- 1
2 // -------------------------------------------
3 //
4 // This file is a part of the CLHEP - a Class
5 //
6 // This is the implementation of methods of th
7 // were introduced when ZOOM PhysicsVectors wa
8 // involving Euler or axis/angle representatio
9 // the rotation matrix, or I/O.
10 //
11
12 #include "CLHEP/Vector/Rotation.h"
13
14 #include <cmath>
15
16
17 namespace CLHEP {
18
19 void HepRotation::decompose(HepAxisAngle & rot
20 boost.set(0,0,0);
21 rotation = axisAngle();
22 }
23
24 void HepRotation::decompose(Hep3Vector & boost
25 boost.set(0,0,0);
26 rotation = axisAngle();
27 }
28
29 double HepRotation::distance2( const HepRotati
30 double sum = rxx * r.rxx + rxy * r.rxy + rxz
31 + ryx * r.ryx + ryy * r.ryy +
32 + rzx * r.rzx + rzy * r.rzy +
33 double answer = 3.0 - sum;
34 return (answer >= 0 ) ? answer : 0;
35 }
36
37 double HepRotation::howNear( const HepRotati
38 return std::sqrt( distance2( r ) );
39 }
40
41 bool HepRotation::isNear( const HepRotation
42 double ep
43 return distance2( r ) <= epsilon*epsilon;
44 }
45
46 double HepRotation::norm2() const {
47 double answer = 3.0 - rxx - ryy - rzz;
48 return (answer >= 0 ) ? answer : 0;
49 }
50
51 } // namespace CLHEP
52