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#ifndef TrackingGeometry_h
#define TrackingGeometry_h
/** \class TrackingGeometry
*
* Base class for the geometry of tracking detectors.
* A geometry contains both the GeomDetUnit s and bigger composite
* structures, which are concrete GeomDet s.
*
* There are therefore 2 kind of methods in the interface:
* - the generic ones, i.e.
* dets(), detIds(), idToDet(), do not distinguish between
* GeomDet and GeomDetUnit, and can be used blindly for the typical use
* of accessing the reference frame transformation of the det.
* - Those specific to GeomDetUnit s, i.e. detUnits(), detUnitIds(),
* idToDetUnit(), are useful when it is necessary to deal with the
* extended interface of GeomDetUnit.
*
*/
#include "DataFormats/DetId/interface/DetId.h"
#include "Geometry/CommonTopologies/interface/GeomDet.h"
#include <vector>
#include <unordered_map>
class TrackingGeometry {
public:
using DetTypeContainer = std::vector<const GeomDetType*>;
using DetContainer = std::vector<const GeomDet*>;
using DetIdContainer = std::vector<DetId>;
using mapIdToDetUnit = std::unordered_map<unsigned int, const GeomDet*>;
using mapIdToDet = std::unordered_map<unsigned int, const GeomDet*>;
/// Destructor.
virtual ~TrackingGeometry() {}
/// Return a vector of all det types.
virtual const DetTypeContainer& detTypes() const = 0;
/// Returm a vector of all GeomDet
virtual const DetContainer& detUnits() const = 0;
/// Returm a vector of all GeomDet (including all GeomDetUnits)
virtual const DetContainer& dets() const = 0;
/// Returm a vector of all GeomDetUnit DetIds
virtual const DetIdContainer& detUnitIds() const = 0;
/// Returm a vector of all GeomDet DetIds (including those of GeomDetUnits)
virtual const DetIdContainer& detIds() const = 0;
/// Return the pointer to the GeomDetUnit corresponding to a given DetId
virtual const GeomDet* idToDetUnit(DetId) const = 0;
/// Return the pointer to the GeomDet corresponding to a given DetId
/// (valid also for GeomDetUnits)
virtual const GeomDet* idToDet(DetId) const = 0;
};
#endif
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