Geant4  v4-10.4-release
RotationP.cc
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1 // -*- C++ -*-
2 // ---------------------------------------------------------------------------
3 //
4 // This file is a part of the CLHEP - a Class Library for High Energy Physics.
5 //
6 // This is the implementation of methods of the HepRotation class which
7 // were introduced when ZOOM PhysicsVectors was merged in, other than those
8 // involving Euler or axis/angle representations, lengthy corrections of
9 // the rotation matrix, or I/O.
10 //
11
12 #ifdef GNUPRAGMA
13 #pragma implementation
14 #endif
15
16 #include "CLHEP/Vector/Rotation.h"
17
18 #include <cmath>
19
20
21 namespace CLHEP {
22
23 void HepRotation::decompose(HepAxisAngle & rotation, Hep3Vector & boost)const {
24  boost.set(0,0,0);
25  rotation = axisAngle();
26 }
27
28 void HepRotation::decompose(Hep3Vector & boost, HepAxisAngle & rotation)const {
29  boost.set(0,0,0);
30  rotation = axisAngle();
31 }
32
33 double HepRotation::distance2( const HepRotation & r ) const {
34  double sum = rxx * r.rxx + rxy * r.rxy + rxz * r.rxz
35  + ryx * r.ryx + ryy * r.ryy + ryz * r.ryz
36  + rzx * r.rzx + rzy * r.rzy + rzz * r.rzz;
37  double answer = 3.0 - sum;
39 }
40
41 double HepRotation::howNear( const HepRotation & r ) const {
42  return std::sqrt( distance2( r ) );
43 }
44
46  double epsilon) const {
47  return distance2( r ) <= epsilon*epsilon;
48 }
49
50 double HepRotation::norm2() const {
51  double answer = 3.0 - rxx - ryy - rzz;
53 }
54
55 } // namespace CLHEP
HepAxisAngle axisAngle() const
Definition: RotationA.cc:124
void set(double x, double y, double z)
void decompose(HepAxisAngle &rotation, Hep3Vector &boost) const
Definition: RotationP.cc:23
double distance2(const HepRotation &r) const
Definition: RotationP.cc:33
double epsilon(double density, double temperature)
double norm2() const
Definition: RotationP.cc:50
bool isNear(const HepRotation &r, double epsilon=Hep4RotationInterface::tolerance) const
Definition: RotationP.cc:45
double howNear(const HepRotation &r) const
Definition: RotationP.cc:41