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#ifndef Geometry_CommonTopologies_SurfaceDeformation_H
#define Geometry_CommonTopologies_SurfaceDeformation_H
/// SurfaceDeformation
///
/// Abstract base class for corrections to be applied to
/// 2D local positions on a surface if the surface is not perfectly
/// following its parameterisaton (e.g. bows for a Plane).
///
#include "DataFormats/GeometryVector/interface/Vector2DBase.h"
#include "DataFormats/GeometryVector/interface/Point2DBase.h"
#include "DataFormats/GeometryVector/interface/LocalTag.h"
#include "Geometry/CommonTopologies/interface/Topology.h"
#include <vector>
class SurfaceDeformation {
public:
typedef Vector2DBase<double, LocalTag> Local2DVector;
typedef Topology::Local2DPoint Local2DPoint;
typedef Topology::LocalTrackAngles LocalTrackAngles;
typedef Topology::Vector2D Vector2D;
typedef Topology::MathVector2D MathVector2D;
virtual ~SurfaceDeformation() {}
virtual SurfaceDeformation *clone() const = 0;
/// specific type, i.e. SurfaceDeformationFactory::Type
virtual int type() const = 0;
/// correction to add to local position depending on
/// - track parameters in local frame (from LocalTrajectoryParameters):
/// * track position as Local2DPoint(x,y)
/// * track angles as LocalTrackAngles(dxdz, dydz)
/// - length of surface (local y-coordinate)
/// - width of surface (local x-coordinate)
virtual Local2DVector positionCorrection(const Local2DPoint &localPos,
const LocalTrackAngles &localAngles,
double length,
double width) const = 0;
/// update information with parameters of 'other',
/// false in case the type or some parameters do not match and thus
/// the information cannot be used (then no changes are done),
/// true if merge was successful
virtual bool add(const SurfaceDeformation &other) = 0;
// Seems like only GeometryAligner and derived classes need access
// to parameters, so we could make it a friend and protect parameters()...
// friend class GeometryAligner; // to be able to call parameters
// protected:
/// parameters - interpretation left to the concrete implementation
virtual std::vector<double> parameters() const = 0;
};
#endif
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