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MathCore2Clhep.h

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// $Id: MathCore2Clhep.h,v 1.2 2007/06/22 16:22:13 gcorti Exp $
#ifndef CLHEPTOOLS_MATHCORE2CLHEP_H 
#define CLHEPTOOLS_MATHCORE2CLHEP_H 1

// Include files
// MathLib
#include "GaudiKernel/Point3DTypes.h"
#include "GaudiKernel/Vector3DTypes.h"
#include "GaudiKernel/Transform3DTypes.h"
#include "CLHEP/Geometry/Point3D.h"
#include "CLHEP/Geometry/Vector3D.h"
#include "CLHEP/Geometry/Transform3D.h"

namespace LHCb {

  namespace math2clhep 
  {
    static HepGeom::Transform3D transform3D(const Gaudi::Transform3D& tr) {
        using namespace CLHEP;
        double xx, xy, xz, dx, yx, yy, yz, dy, zx, zy, zz, dz;
        
        tr.GetComponents(xx, xy, xz, dx, yx, yy, yz, dy, zx, zy, zz, dz );

        return HepGeom::Transform3D(HepRotation( HepRep3x3(xx, xy, xz,
                                                           yx, yy, yz,
                                                           zx, zy, zz) ),
                                    Hep3Vector(dx, dy, dz) );
    }

    template<class aVector>
    static HepGeom::Vector3D<double> vector3D(const aVector& v) {
      return HepGeom::Vector3D<double>( v.x(), v.y(), v.z() );
    }

    template<class aPoint>
    static HepGeom::Point3D<double> point3D(const aPoint& p) {
      return HepGeom::Point3D<double>( p.x(), p.y(), p.z() );
    }
    
  }
  

};


#endif // CLHEPTOOLS_MATHCORE2CLHEP_H

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