//---Author: Richard T. Jones 11/16/98 //---Version: Dec. 12, 1998 v1.00 /************************************************************************* * Copyright(c) 1998, University of Connecticut, All rights reserved. * * Author: Richard T. Jones, Asst. Prof. of Physics * * * * Permission to use, copy, modify and distribute this software and its * * documentation for non-commercial purposes is hereby granted without * * fee, provided that the above copyright notice appears in all copies * * and that both the copyright notice and this permission notice appear * * in the supporting documentation. The author makes no claims about the * * suitability of this software for any purpose. * * It is provided "as is" without express or implied warranty. * *************************************************************************/ ////////////////////////////////////////////////////////////////////////// // // // Lorentz Algebra Package // // // // The present package implements all the basic algorithms dealing // // with three-vectors and four-vectors, together with their transform- // // ations. Four-vectors are derived from three-vectors and inherit // // all of their members. Direct access to the components is provided // // through the subscript operator [i] which covers the range 1...3 for // // three-vectors and 0...3 for four-vectors. Transformations are // // implemented as a friend class so that they can operate directly on // // the data members of the vector, which are otherwise hidden. The // // special transformations (rotations and boosts) inherit from the // // general class LorentzTransform. Products of rotations are other // // rotations, whereas the product of a boost with anything is simply // // a LorentzTransform. The LorentzTransform objects can be tested // // for the property of being a pure rotation or boost. They can also // // implement non-isochronous and improper transformations. // // // // Rotations may be specified either by Euler angles or by a rotation // // axis. All angles are assumed to be in radians. Vector classes are // // defined for both Real_t and Complex_t generic types. For complex // // vectors there are several additional member functions to deal with // // operations that are specific to complex numbers. // // // // The classes comprising this package are: // // TThreeVectorReal is a base class // // TThreeVectorComplex is a base class // // TFourVectorReal is a TThreeVectorReal // // TFourVectorComplex is a TThreeVectorComplex // // TLorentzTransform is a base class // // TThreeRotation is a TLorentzTransform // // TLorentzBoost is a TLorentzTransform // // The following aliases are defined for these classes: // // TUnitVector is an alias for TThreeVectorReal // // TThreeVector is an alias for TThreeVectorReal // // TFourVector is an alias for TFourVectorReal // // // // This package was developed at the University of Connecticut by // // Richard T. Jones // // // ////////////////////////////////////////////////////////////////////////// #include using namespace std; #include "TThreeVectorComplex.h" #include "TThreeRotation.h" ClassImp(TThreeVectorComplex) Double_t TThreeVectorComplex::fResolution = 1e-12; TThreeVectorComplex &TThreeVectorComplex::Rotate(const TThreeRotation &rotOp) { TThreeVectorComplex temp = rotOp*(*this); return (*this = temp); } TThreeVectorComplex &TThreeVectorComplex::Rotate(const Double_t phi, const Double_t theta, const Double_t psi) { TThreeRotation rotOp(phi,theta,psi); return Rotate(rotOp); } TThreeVectorComplex &TThreeVectorComplex::Rotate (const TUnitVector &ahat, const Double_t angle) { TThreeRotation rotOp(ahat,angle); return Rotate(rotOp); } void TThreeVectorComplex::Streamer(TBuffer &buf) { // Put/get a complex three-vector to/from stream buffer buf. // This method assumes that complex is stored in memory as double[2] double *p = (double *)&fVector[1]; if (buf.IsReading()) { buf.ReadStaticArray(p); } else { buf.WriteArray(p, 6); } } void TThreeVectorComplex::Print(Option_t *option) { // Output a complex three-vector in ascii form. cout << "TThreeVectorComplex(" << fVector[1] << "," << fVector[2] << "," << fVector[3] << ")" << endl; } //______________________________________________________________________________ #ifdef R__HPUX //______________________________________________________________________________ // These functions should be inline //______________________________________________________________________________ #endif