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KalmanFitter.h
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1 /* Copyright 2013, Ludwig-Maximilians Universität München,
2  Authors: Tobias Schlüter & Johannes Rauch
3 
4  This file is part of GENFIT.
5 
6  GENFIT is free software: you can redistribute it and/or modify
7  it under the terms of the GNU Lesser General Public License as published
8  by the Free Software Foundation, either version 3 of the License, or
9  (at your option) any later version.
10 
11  GENFIT is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  GNU Lesser General Public License for more details.
15 
16  You should have received a copy of the GNU Lesser General Public License
17  along with GENFIT. If not, see <http://www.gnu.org/licenses/>.
18 */
23 #ifndef genfit_KalmanFitter_h
24 #define genfit_KalmanFitter_h
25 
26 #include "AbsKalmanFitter.h"
27 
28 #include <memory>
29 
30 
31 namespace genfit {
32 
33 class KalmanFitterInfo;
34 class MeasuredStateOnPlane;
35 class TrackPoint;
36 
40 class KalmanFitter : public AbsKalmanFitter {
41 
42  private:
43 
44  // These private functions are needed, otherwise strange things happen, no idea why!
45  KalmanFitter(const KalmanFitter&);
47 
48  public:
49 
50  KalmanFitter(unsigned int maxIterations = 4, double deltaPval = 1e-3, double blowUpFactor = 1e3, bool squareRootFormalism = false)
51  : AbsKalmanFitter(maxIterations, deltaPval, blowUpFactor), currentState_(nullptr),
52  squareRootFormalism_(squareRootFormalism)
53  {}
54 
56 
58  void processTrackWithRep(Track* tr, const AbsTrackRep* rep, bool resortHits = false) override;
59 
62  void processTrackPartially(Track* tr, const AbsTrackRep* rep, int startId = 0, int endId = -1);
63 
64  void useSquareRootFormalism(bool squareRootFormalism = true) {squareRootFormalism_ = squareRootFormalism;}
65 
66  private:
67  bool fitTrack(Track* tr, const AbsTrackRep* rep, double& chi2, double& ndf, int startId, int endId, int& nFailedHits);
69  const AbsTrackRep* rep, double& chi2, double& ndf, int direction);
70 
71  std::unique_ptr<MeasuredStateOnPlane> currentState_;
72 
74 
75  public:
76  ClassDefOverride(KalmanFitter,1)
77 
78 };
79 
80 } /* End of namespace genfit */
83 #endif //genfit_KalmanFitter_h