/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_6_2_7/src/TrackPropagation/RungeKutta/src/RKLocalFieldProvider.h

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#ifndef RKLocalFieldProvider_H
#define RKLocalFieldProvider_H

#include "FWCore/Utilities/interface/Visibility.h"
#include "DataFormats/GeometrySurface/interface/GloballyPositioned.h"

class MagVolume;

class dso_internal RKLocalFieldProvider {
public:

    typedef GloballyPositioned<float>            Frame;
    typedef Frame::GlobalVector                  GlobalVector;
    typedef Frame::GlobalPoint                   GlobalPoint;
    typedef Frame::LocalVector                   LocalVector;
    typedef Frame::LocalPoint                    LocalPoint;
    typedef Frame::PositionType                  Position;
    typedef Frame::RotationType                  Rotation;
    typedef GlobalVector::BasicVectorType        Vector;

    explicit RKLocalFieldProvider( const MagVolume& vol);

    RKLocalFieldProvider( const MagVolume& vol, const Frame& frame);

    Vector inTesla( const LocalPoint& lp) const;

    Vector inTesla( double x, double y, double z) const {
        return inTesla( LocalPoint(x,y,z));
    }

    Vector inTesla( const Vector& v) const {
        return inTesla( LocalPoint(v));
    }

    const Frame& frame() const {return theFrame;}

private:

    const MagVolume & theVolume;
    const Frame&     theFrame;
    bool             transform_;


};

#endif