Belle II Software development
StereoHitVarSet.cc
1/**************************************************************************
2 * basf2 (Belle II Analysis Software Framework) *
3 * Author: The Belle II Collaboration *
4 * *
5 * See git log for contributors and copyright holders. *
6 * This file is licensed under LGPL-3.0, see LICENSE.md. *
7 **************************************************************************/
8#include <tracking/trackFindingCDC/filters/stereoHits/StereoHitVarSet.h>
9
10#include <tracking/trackFindingCDC/eventdata/tracks/CDCTrack.h>
11#include <tracking/trackFindingCDC/eventdata/hits/CDCRecoHit3D.h>
12#include <tracking/trackFindingCDC/eventdata/hits/CDCWireHit.h>
13
14#include <tracking/trackFindingCDC/eventdata/trajectories/CDCTrajectory2D.h>
15
16#include <tracking/trackFindingCDC/topology/CDCWire.h>
17
18#include <tracking/trackFindingCDC/numerics/ToFinite.h>
19
20#include <cdc/dataobjects/CDCHit.h>
21
22#include <numeric>
23
24using namespace Belle2;
25using namespace TrackFindingCDC;
26
28{
29 const CDCRLWireHit* rlWireHit = testPair->getTo();
30 const CDCTrack* track = testPair->getFrom();
31
32 if (not testPair or not rlWireHit or not track) return false;
33
34
35 const CDCTrajectory2D& trajectory2D = track->getStartTrajectory3D().getTrajectory2D();
36
37 const CDCRecoHit3D& recoHit3D = CDCRecoHit3D::reconstruct(*rlWireHit, trajectory2D);
38
39 const Vector2D& startMomentum = trajectory2D.getMom2DAtSupport();
40 const double radius = trajectory2D.getLocalCircle()->radius();
41 const double size = track->size();
42 const Vector3D& reconstructedPosition = recoHit3D.getRecoPos3D();
43 const double reconstructedDriftLength = recoHit3D.getSignedRecoDriftLength();
44 const double reconstructedS = recoHit3D.getArcLength2D();
45 const unsigned short int adcCount = rlWireHit->getWireHit().getHit()->getADCCount();
46 const ERightLeft rlInformation = rlWireHit->getRLInfo();
47 const double backArcLength2D = track->back().getArcLength2D();
48 const double frontArcLength2D = track->front().getArcLength2D();
49 const double arcLength2DSum = std::accumulate(track->begin(), track->end(), 0.0, [](const double sum,
50 const CDCRecoHit3D & listRecoHit) { return sum + listRecoHit.getArcLength2D();});
51
52 const CDCWire& wire = rlWireHit->getWire();
53 Vector2D wirePos = wire.getWirePos2DAtZ(reconstructedPosition.z());
54 Vector2D disp2D = reconstructedPosition.xy() - wirePos;
55 const double xyDistance = disp2D.norm();
56
57 const auto nearestAxialHit = std::min_element(track->begin(), track->end(), [&reconstructedS](const CDCRecoHit3D & lhs,
58 const CDCRecoHit3D & rhs) {
59 return std::abs(lhs.getArcLength2D() - reconstructedS) < std::abs(rhs.getArcLength2D() - reconstructedS);
60 });
61
62 var<named("track_size")>() = size;
63 var<named("pt")>() = toFinite(trajectory2D.getAbsMom2D(), 0);
64 var<named("reco_s")>() = toFinite(reconstructedS, 0);
65 var<named("reco_z")>() = toFinite(reconstructedPosition.z(), 0);
66 var<named("phi_track")>() = toFinite(startMomentum.phi(), 0);
67 var<named("phi_hit")>() = reconstructedPosition.phi();
68 var<named("theta_hit")>() = reconstructedPosition.theta();
69 var<named("drift_length")>() = reconstructedDriftLength;
70 var<named("adc_count")>() = adcCount;
71 var<named("xy_distance_zero_z")>() = toFinite(xyDistance, 0);
72 var<named("right_hit")>() = rlInformation == ERightLeft::c_Right;
73 var<named("track_back_s")>() = toFinite(backArcLength2D, 0);
74 var<named("track_front_s")>() = toFinite(frontArcLength2D, 0);
75 var<named("track_mean_s")>() = toFinite(arcLength2DSum / size, 0);
76 var<named("s_distance")>() = toFinite(nearestAxialHit->getArcLength2D() - reconstructedS, 0);
77 var<named("track_radius")>() = toFinite(radius, 0);
78 var<named("superlayer_id")>() = rlWireHit->getISuperLayer();
79 return true;
80}
unsigned short getADCCount() const
Getter for integrated charge.
Definition: CDCHit.h:230
Class representing an oriented hit wire including a hypotheses whether the causing track passes left ...
Definition: CDCRLWireHit.h:41
const CDCWireHit & getWireHit() const
Getter for the wire hit associated with the oriented hit.
Definition: CDCRLWireHit.h:192
ISuperLayer getISuperLayer() const
Getter for the superlayer id.
const CDCWire & getWire() const
Getter for the wire the oriented hit associated to.
ERightLeft getRLInfo() const
Getter for the right left passage information.
Definition: CDCRLWireHit.h:234
Class representing a three dimensional reconstructed hit.
Definition: CDCRecoHit3D.h:52
const Vector3D & getRecoPos3D() const
Getter for the 3d position of the hit.
Definition: CDCRecoHit3D.h:285
double getSignedRecoDriftLength() const
Returns the drift length next to the reconstructed position.
Definition: CDCRecoHit3D.h:346
static CDCRecoHit3D reconstruct(const CDCRecoHit2D &recoHit2D, const CDCTrajectory2D &trajectory2D)
Reconstructs the three dimensional hit from the two dimensional and the two dimensional trajectory.
Definition: CDCRecoHit3D.cc:56
double getArcLength2D() const
Getter for the travel distance in the xy projection.
Definition: CDCRecoHit3D.h:370
Class representing a sequence of three dimensional reconstructed hits.
Definition: CDCTrack.h:41
Particle trajectory as it is seen in xy projection represented as a circle.
Vector2D getMom2DAtSupport(const double bZ) const
Get the momentum at the support point of the trajectory.
double getAbsMom2D(double bZ) const
Get the estimation for the absolute value of the transvers momentum.
const UncertainPerigeeCircle & getLocalCircle() const
Getter for the circle in local coordinates.
const CDCHit * getHit() const
Getter for the CDCHit pointer into the StoreArray.
Definition: CDCWireHit.h:159
Class representing a sense wire in the central drift chamber.
Definition: CDCWire.h:58
Vector2D getWirePos2DAtZ(const double z) const
Gives the xy projected position of the wire at the given z coordinate.
Definition: CDCWire.h:192
AObject Object
Type of the object to be analysed.
Definition: Filter.dcl.h:35
double radius() const
Gives the signed radius of the circle. If it was a line this will be infinity.
bool extract(const BaseStereoHitFilter::Object *testPair) override
Generate and assign the contained variables.
static constexpr int named(const char *name)
Getter for the index from the name.
Definition: VarSet.h:78
Float_t & var()
Reference getter for the value of the ith variable. Static version.
Definition: VarSet.h:93
A two dimensional vector which is equipped with functions for correct handling of orientation relate...
Definition: Vector2D.h:32
double phi() const
Gives the azimuth angle being the angle to the x axes ( range -M_PI to M_PI )
Definition: Vector2D.h:569
double norm() const
Calculates the length of the vector.
Definition: Vector2D.h:175
A three dimensional vector.
Definition: Vector3D.h:33
const Vector2D & xy() const
Getter for the xy projected vector ( reference ! )
Definition: Vector3D.h:508
double phi() const
Getter for the azimuth angle.
Definition: Vector3D.h:540
double z() const
Getter for the z coordinate.
Definition: Vector3D.h:496
double theta() const
Getter for the polar angle.
Definition: Vector3D.h:546
ERightLeft
Enumeration to represent the distinct possibilities of the right left passage.
Definition: ERightLeft.h:25
Abstract base class for different kinds of events.