/data/refman/pasoursint/CMSSW_5_3_1/src/TrackPropagation/RungeKutta/src/PathToPlane2Order.h

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#ifndef PathToPlane2Order_H
#define PathToPlane2Order_H

#include "FWCore/Utilities/interface/Visibility.h"
#include "DataFormats/GeometryVector/interface/Basic3DVector.h"
#include "TrackingTools/GeomPropagators/interface/HelixPlaneCrossing.h"
#include "CartesianState.h"
#include "DataFormats/TrajectorySeed/interface/PropagationDirection.h"
#include "DataFormats/GeometrySurface/interface/Plane.h"
#include "DataFormats/GeometryVector/interface/GlobalPoint.h"
#include "DataFormats/GeometryVector/interface/GlobalVector.h"

class RKLocalFieldProvider;

class dso_internal PathToPlane2Order {
public:

    typedef Plane::Scalar                                Scalar;
    typedef Basic3DVector<Scalar>                        Vector3D;
    typedef GloballyPositioned<Scalar>                   Frame;

    PathToPlane2Order( const RKLocalFieldProvider& fld, const Frame* fieldFrame) : 
      theField(fld), theFieldFrame(fieldFrame) {}

    std::pair<bool,double> operator()( const Plane& plane, 
                                       const Vector3D& position,
                                       const Vector3D& momentum,
                                       double charge,
                                       const PropagationDirection propDir = alongMomentum);

    std::pair<bool,double> operator()( const Plane& plane, 
                                       const GlobalPoint& position,
                                       const GlobalVector& momentum,
                                       double charge,
                                       const PropagationDirection propDir = alongMomentum) {
        return operator()( plane, theFieldFrame->toLocal(position).basicVector(), 
                           theFieldFrame->toLocal(momentum).basicVector(), charge, propDir);
    }

private:

    const RKLocalFieldProvider& theField;
    const Frame*                theFieldFrame;
};

#endif