|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
#ifndef GEMRecHit_GEMCSCSegment_h
#define GEMRecHit_GEMCSCSegment_h
/** \class GEMCSCSegment
*
* Based on CSCSegment class
* Describes a reconstructed track segment in the GEM + CSC chambers.
* This is 4-dimensional since it has an origin (x,y) and a direction (x,y)
* in the local coordinate system of the (csc) chamber.
*
* \author R. Radogna
*/
#include "DataFormats/TrackingRecHit/interface/RecSegment.h"
#include "DataFormats/GEMRecHit/interface/GEMRecHitCollection.h"
#include "DataFormats/CSCRecHit/interface/CSCRecHit2DCollection.h"
#include "DataFormats/CSCRecHit/interface/CSCSegmentCollection.h"
#include <iosfwd>
class CSCDetId;
class GEMCSCSegment final : public RecSegment {
public:
/// Default constructor
GEMCSCSegment() : theChi2(0.) {}
/// Constructor
GEMCSCSegment(const CSCSegment* csc_segment,
const std::vector<const GEMRecHit*> gem_rhs,
LocalPoint origin,
LocalVector direction,
AlgebraicSymMatrix errors,
double chi2);
/// Destructor
~GEMCSCSegment() override;
//--- Base class interface
GEMCSCSegment* clone() const override { return new GEMCSCSegment(*this); }
LocalPoint localPosition() const override { return theOrigin; }
LocalError localPositionError() const override;
LocalVector localDirection() const override { return theLocalDirection; }
LocalError localDirectionError() const override;
/// Parameters of the segment, for the track fit in the order (dx/dz, dy/dz, x, y )
AlgebraicVector parameters() const override;
/// Covariance matrix of parameters()
AlgebraicSymMatrix parametersError() const override { return theCovMatrix; }
/// The projection matrix relates the trajectory state parameters to the segment parameters().
AlgebraicMatrix projectionMatrix() const override;
double chi2() const override { return theChi2; };
int dimension() const override { return 4; }
int degreesOfFreedom() const override { return 2 * nRecHits() - 4; }
int nRecHits() const { return (theGEMRecHits.size() + theCSCSegment.specificRecHits().size()); }
//--- Return the constituents in different ways
const CSCSegment cscSegment() const { return theCSCSegment; }
const std::vector<GEMRecHit>& gemRecHits() const { return theGEMRecHits; }
const std::vector<CSCRecHit2D>& cscRecHits() const { return theCSCSegment.specificRecHits(); }
std::vector<const TrackingRecHit*> recHits() const override;
std::vector<TrackingRecHit*> recHits() override;
CSCDetId cscDetId() const { return geographicalId(); }
void print() const;
private:
std::vector<GEMRecHit> theGEMRecHits; // store GEM Rechits
CSCSegment theCSCSegment; // store CSC RecHits and store CSC Segment
// eventually we have to disentangle if later on we decide
// not to have a one-to-one relationship anymore
// i.e. if we allow the GEMCSC segment to modify the
// (selection of the rechits of the) CSC segment
LocalPoint theOrigin; // in chamber frame - the GeomDet local coordinate system
LocalVector theLocalDirection; // in chamber frame - the GeomDet local coordinate system
AlgebraicSymMatrix theCovMatrix; // the covariance matrix
double theChi2;
};
std::ostream& operator<<(std::ostream& os, const GEMCSCSegment& seg);
#endif
|