Gabriele Cosmo
112 lines
2.9 KiB
C++
112 lines
2.9 KiB
C++
// -*- C++ -*-
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// CLASSDOC OFF
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// ---------------------------------------------------------------------------
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// CLASSDOC ON
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//
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// This file is a part of the CLHEP - a Class Library for High Energy Physics.
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//
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// ----------------------------------------------------------------------
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//
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// EulerAngles.h EulerAngles class --
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// Support class for PhysicsVectors classes
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//
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// History:
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// 09-Jan-1998 WEB FixedTypes is now found in ZMutility
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// 12-Jan-1998 WEB PI is now found in ZMutility
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// 15-Jun-1998 WEB Added namespace support
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// 02-May-2000 WEB No global using
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// 26-Jul-2000 MF CLHEP version
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//
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// ----------------------------------------------------------------------
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#ifndef HEP_EULERANGLES_H
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#define HEP_EULERANGLES_H
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#include <iostream>
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namespace CLHEP {
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// Declarations of classes and global methods
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class HepEulerAngles;
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std::ostream & operator<<(std::ostream & os, const HepEulerAngles & aa);
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std::istream & operator>>(std::istream & is, HepEulerAngles & aa);
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/**
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* @author
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* @ingroup vector
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*/
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class HepEulerAngles {
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protected:
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typedef HepEulerAngles EA; // just an abbreviation
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static double tolerance; // to determine relative nearness
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public:
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// ---------- Constructors:
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inline HepEulerAngles();
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inline HepEulerAngles( double phi, double theta, double psi );
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// ---------- Destructor, copy constructor, assignment:
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// use C++ defaults
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// ---------- Accessors:
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public:
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inline double getPhi() const;
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inline double phi() const;
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inline EA & setPhi( double phi );
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inline double getTheta() const;
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inline double theta() const;
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inline EA & setTheta( double theta );
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inline double getPsi() const;
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inline double psi() const;
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inline EA & setPsi( double psi );
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inline EA & set( double phi, double theta, double psi );
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// ---------- Operations:
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// comparisons:
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inline int compare ( const EA & ea ) const;
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inline bool operator==( const EA & ea ) const;
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inline bool operator!=( const EA & ea ) const;
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inline bool operator< ( const EA & ea ) const;
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inline bool operator<=( const EA & ea ) const;
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inline bool operator> ( const EA & ea ) const;
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inline bool operator>=( const EA & ea ) const;
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// relative comparison:
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inline static double getTolerance();
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inline static double setTolerance( double tol );
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bool isNear ( const EA & ea, double epsilon = tolerance ) const;
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double howNear( const EA & ea ) const;
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// ---------- I/O:
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friend std::ostream & operator<<( std::ostream & os, const EA & ea );
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friend std::istream & operator>>( std::istream & is, EA & ea );
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// ---------- Helper methods:
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protected:
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double distance( const HepEulerAngles & ex ) const;
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// ---------- Data members:
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protected:
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double phi_;
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double theta_;
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double psi_;
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}; // HepEulerAngles
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} // namespace CLHEP
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#include "CLHEP/Vector/EulerAngles.icc"
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#endif // EULERANGLES_H
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