Gabriele Cosmo
107 lines
2.8 KiB
C++
107 lines
2.8 KiB
C++
// -*- C++ -*-
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// ---------------------------------------------------------------------------
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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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//
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// AxisAngle.h - provide HepAxisAngle class
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//
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// History:
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// 23-Jan-1998 WEB Initial draft
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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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// 27-Jul-2000 MF CLHEP version
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//
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// ----------------------------------------------------------------------
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#ifndef HEP_AXISANGLE_H
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#define HEP_AXISANGLE_H
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#include <iostream>
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#include "CLHEP/Vector/ThreeVector.h"
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namespace CLHEP {
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// Declarations of classes and global methods
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class HepAxisAngle;
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std::ostream & operator<<( std::ostream & os, const HepAxisAngle & aa );
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std::istream & operator>>( std::istream & is, HepAxisAngle & 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 HepAxisAngle {
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public:
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typedef double Scalar;
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protected:
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typedef HepAxisAngle AA; // just an abbreviation
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static Scalar tolerance; // to determine relative nearness
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public:
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// ---------- Constructors:
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inline HepAxisAngle();
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inline HepAxisAngle( const Hep3Vector axis, Scalar delta );
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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 Hep3Vector getAxis() const;
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inline Hep3Vector axis() const;
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inline AA & setAxis( const Hep3Vector axis );
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inline double getDelta() const;
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inline double delta() const ;
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inline AA & setDelta( Scalar delta );
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inline AA & set( const Hep3Vector axis, Scalar delta );
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// ---------- Operations:
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// comparisons:
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inline int compare ( const AA & aa ) const;
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inline bool operator==( const AA & aa ) const;
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inline bool operator!=( const AA & aa ) const;
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inline bool operator< ( const AA & aa ) const;
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inline bool operator<=( const AA & aa ) const;
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inline bool operator> ( const AA & aa ) const;
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inline bool operator>=( const AA & aa ) const;
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// relative comparison:
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inline static double getTolerance();
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inline static double setTolerance( Scalar tol );
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protected:
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double distance( const HepAxisAngle & aa ) const;
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public:
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bool isNear ( const AA & aa, Scalar epsilon = tolerance ) const;
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double howNear( const AA & aa ) const;
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// ---------- I/O:
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friend std::ostream & operator<<( std::ostream & os, const AA & aa );
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friend std::istream & operator>>( std::istream & is, AA & aa );
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private:
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Hep3Vector axis_; // Note: After construction, this is always of mag 1
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double delta_;
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}; // HepAxisAngle
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} // namespace CLHEP
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#include "CLHEP/Vector/AxisAngle.icc"
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#endif // HEP_AXISANGLE_H
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