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#ifndef DataFormats_Alignment_TkLasBeam_h
#define DataFormats_Alignment_TkLasBeam_h
#include <vector>
#include <cmath>
#include "DataFormats/Alignment/interface/SiStripLaserRecHit2D.h"
/// \class TkLasBeam
/// a collection of tracker laser hits (SiStripLaserRecHit2D) originating from a single laser beam.
/// documentation in TkLasTrackBasedInterface TWiki
class TkLasBeam {
public:
typedef std::vector<SiStripLaserRecHit2D>::const_iterator const_iterator;
TkLasBeam() {}
TkLasBeam(unsigned int aBeamId) { beamId = aBeamId; }
virtual ~TkLasBeam() {} // virtual destructor to work as base class
/// return the full beam identifier
unsigned int getBeamId(void) const { return beamId; }
/// access the collection of hits
const std::vector<SiStripLaserRecHit2D>& getData(void) const { return data; }
/// access iterator to the collection of hits
std::vector<SiStripLaserRecHit2D>::const_iterator begin(void) const { return data.begin(); }
/// access iterator to the collection of hits
std::vector<SiStripLaserRecHit2D>::const_iterator end(void) const { return data.end(); }
/// insert a hit in the data vector
void push_back(const SiStripLaserRecHit2D& aHit) { data.push_back(aHit); }
/// returns the beam number (10^1 digit of beamId)
unsigned int getBeamNumber(void) const { return beamId % 100 / 10; }
/// true if this is a TEC internal beam (from 10^2 digit of beamId). side parameter: -1 = ask if TEC-, 1 = TEC+, 0 = any tec, don't care
bool isTecInternal(int side = 0) const;
/// true if this is an AT beam (from 10^2 digit of beamId)
bool isAlignmentTube(void) const { return (beamId % 1000 / 100) == 2; }
/// true if this beam hits TEC R6 (last digit of beamId)
bool isRing6(void) const { return (beamId % 10) == 1; }
private:
unsigned int beamId;
std::vector<SiStripLaserRecHit2D> data;
};
// To get the typedef for the collection:
#include "DataFormats/Alignment/interface/TkLasBeamCollectionFwd.h"
#endif
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