1 package org.lcsim.recon.tracking.vsegment.hit.base;
2
3 import java.util.List;
4 import java.util.ArrayList;
5
6 import org.lcsim.event.MCParticle;
7
8 import org.lcsim.recon.tracking.vsegment.geom.Sensor;
9 import org.lcsim.recon.tracking.vsegment.hit.DigiTrackerHit;
10
11 /**
12 * Elemental DigiTrackerHit.
13 * In simulation, this is a digitized signal from a single channel produced by a
14 * single <tt>MCParticle</tt>. In data, this is a single channel signal after calibration.
15 *
16 * @author D.Onoprienko
17 * @version $Id: DigiTrackerHitElemental.java,v 1.1 2008/12/06 21:53:44 onoprien Exp $
18 */
19 public class DigiTrackerHitElemental extends DigiTrackerHitAdapter {
20
21 // -- Constructors : ----------------------------------------------------------
22
23 /** Constract from parameters. */
24 public DigiTrackerHitElemental(double signal, double time, Sensor sensor, int channel, MCParticle mcParticle) {
25 _signal = signal;
26 _time = time;
27 _sensor = sensor;
28 _channel = channel;
29 _mcParticle = mcParticle;
30 }
31
32 /** Constract from parameters with no associated <tt>MCParticle</tt>. */
33 public DigiTrackerHitElemental(double signal, double time, Sensor sensor, int channel) {
34 this(signal, time, sensor, channel, null);
35 }
36
37 /** Copy constructor. */
38 public DigiTrackerHitElemental(DigiTrackerHitElemental digiHit) {
39 _signal = digiHit._signal;
40 _time = digiHit._time;
41 _sensor = digiHit._sensor;
42 _channel = digiHit._channel;
43 _mcParticle = digiHit._mcParticle;
44 }
45
46 // -- Getters : ---------------------------------------------------------------
47
48 /**
49 * Returns <tt>true</tt> if the hit is a superposition of more than one elemental hit.
50 * Objects of this class always return <tt>false</tt>.
51 */
52 public boolean isComposite() {return false;}
53
54 /**
55 * Returns <tt>MCParticle</tt> that produced the hit.
56 * If the hit is composite, or does not have <tt>MCParticle</tt> associated with
57 * it (noise, beam test data, etc.), returns <tt>null</tt>.
58 */
59 public MCParticle getMCParticle() {return _mcParticle;}
60
61 /**
62 * Returns a list of underlying elemental hits.
63 * Since the hit is not composite, returns a list with a single element - this hit.
64 */
65 public List<DigiTrackerHit> getElementalHits() {
66 List<DigiTrackerHit> hitList = new ArrayList<DigiTrackerHit>(1);
67 hitList.add(this);
68 return hitList;
69 }
70
71 // -- Private parts : ---------------------------------------------------------
72
73 protected MCParticle _mcParticle;
74
75 }