source: trunk/source/track/include/G4Track.hh@ 1342

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1//
2// ********************************************************************
3// * License and Disclaimer *
4// * *
5// * The Geant4 software is copyright of the Copyright Holders of *
6// * the Geant4 Collaboration. It is provided under the terms and *
7// * conditions of the Geant4 Software License, included in the file *
8// * LICENSE and available at http://cern.ch/geant4/license . These *
9// * include a list of copyright holders. *
10// * *
11// * Neither the authors of this software system, nor their employing *
12// * institutes,nor the agencies providing financial support for this *
13// * work make any representation or warranty, express or implied, *
14// * regarding this software system or assume any liability for its *
15// * use. Please see the license in the file LICENSE and URL above *
16// * for the full disclaimer and the limitation of liability. *
17// * *
18// * This code implementation is the result of the scientific and *
19// * technical work of the GEANT4 collaboration. *
20// * By using, copying, modifying or distributing the software (or *
21// * any work based on the software) you agree to acknowledge its *
22// * use in resulting scientific publications, and indicate your *
23// * acceptance of all terms of the Geant4 Software license. *
24// ********************************************************************
25//
26//
27// $Id: G4Track.hh,v 1.22 2010/08/11 17:11:54 kurasige Exp $
28// GEANT4 tag $Name: track-V09-03-09 $
29//
30//
31//---------------------------------------------------------------
32//
33// G4Track.hh
34//
35// Class Description:
36// This class represents the partilce under tracking.
37// It includes information related to tracking for examples:
38// 1) current position/time of the particle,
39// 2) static particle information,
40// 3) the pointer to the physical volume where currently
41// the particle exists
42//
43//---------------------------------------------------------------
44// Modification for G4TouchableHandle 22 Oct. 2001 R.Chytracek
45// Add MaterialCutCouple 08 Oct. 2002 H.Kurashige
46
47#ifndef G4Track_h
48#define G4Track_h 1
49
50#include "globals.hh" // Include from 'global'
51#include <cmath> // Include from 'system'
52#include "G4ThreeVector.hh" // Include from 'geometry'
53#include "G4LogicalVolume.hh" // Include from 'geometry'
54#include "G4VPhysicalVolume.hh" // Include from 'geometry'
55#include "G4Allocator.hh" // Include from 'particle+matter'
56#include "G4DynamicParticle.hh" // Include from 'particle+matter'
57#include "G4TrackStatus.hh" // Include from 'tracking'
58#include "G4TouchableHandle.hh" // Include from 'geometry'
59#include "G4VUserTrackInformation.hh"
60
61#include "G4PhysicsLogVector.hh"
62
63#include "G4Material.hh"
64
65class G4Step; // Forward declaration
66class G4MaterialCutsCouple;
67
68//////////////
69class G4Track
70//////////////
71{
72
73//--------
74public: // With description
75
76// Constructor
77 G4Track();
78 G4Track(G4DynamicParticle* apValueDynamicParticle,
79 G4double aValueTime,
80 const G4ThreeVector& aValuePosition);
81 // aValueTime is a global time
82 G4Track(const G4Track&);
83 // Copy Constructor copys members other than tracking information
84
85private:
86 // Hide assignment operator as private
87 G4Track& operator=(const G4Track&);
88
89//--------
90public: // With description
91
92// Destrcutor
93 ~G4Track();
94
95// Operators
96 inline void *operator new(size_t);
97 // Override "new" for "G4Allocator".
98 inline void operator delete(void *aTrack);
99 // Override "delete" for "G4Allocator".
100
101 G4bool operator==( const G4Track& );
102
103//--------
104public: // With description
105// Copy information of the track (w/o tracking information)
106 void CopyTrackInfo(const G4Track&);
107
108// Get/Set functions
109 // track ID
110 G4int GetTrackID() const;
111 void SetTrackID(const G4int aValue);
112
113 G4int GetParentID() const;
114 void SetParentID(const G4int aValue);
115
116 // dynamic particle
117 const G4DynamicParticle* GetDynamicParticle() const;
118
119 // particle definition
120 const G4ParticleDefinition* GetParticleDefinition() const;
121 // following method of GetDefinition remains
122 // because of backward compatiblity. It will be removed in future
123 G4ParticleDefinition* GetDefinition() const;
124
125 // position, time
126 const G4ThreeVector& GetPosition() const;
127 void SetPosition(const G4ThreeVector& aValue);
128
129 G4double GetGlobalTime() const;
130 void SetGlobalTime(const G4double aValue);
131 // Time since the event in which the track belongs is created.
132
133 G4double GetLocalTime() const;
134 void SetLocalTime(const G4double aValue);
135 // Time since the current track is created.
136
137 G4double GetProperTime() const;
138 void SetProperTime(const G4double aValue);
139 // Proper time of the current track
140
141 // volume, material, touchable
142 G4VPhysicalVolume* GetVolume() const;
143 G4VPhysicalVolume* GetNextVolume() const;
144
145 G4Material* GetMaterial() const;
146 G4Material* GetNextMaterial() const;
147
148 const G4MaterialCutsCouple* GetMaterialCutsCouple() const;
149 const G4MaterialCutsCouple* GetNextMaterialCutsCouple() const;
150
151 const G4VTouchable* GetTouchable() const;
152 const G4TouchableHandle& GetTouchableHandle() const;
153 void SetTouchableHandle( const G4TouchableHandle& apValue);
154
155 const G4VTouchable* GetNextTouchable() const;
156 const G4TouchableHandle& GetNextTouchableHandle() const;
157 void SetNextTouchableHandle( const G4TouchableHandle& apValue);
158
159 // energy
160 G4double GetKineticEnergy() const;
161 void SetKineticEnergy(const G4double aValue);
162
163 G4double GetTotalEnergy() const;
164
165
166 // moemtnum
167 const G4ThreeVector& GetMomentumDirection() const;
168 void SetMomentumDirection(const G4ThreeVector& aValue);
169
170 G4ThreeVector GetMomentum() const;
171
172 G4double GetVelocity() const;
173
174
175 // polarization
176 const G4ThreeVector& GetPolarization() const;
177 void SetPolarization(const G4ThreeVector& aValue);
178
179 // track status, flags for tracking
180 G4TrackStatus GetTrackStatus() const;
181 void SetTrackStatus(const G4TrackStatus aTrackStatus);
182
183 G4bool IsBelowThreshold() const;
184 void SetBelowThresholdFlag(G4bool value = true);
185 // The flag of "BelowThreshold" is set to true
186 // if this track energy is below threshold energy
187 // in this material determined by the range cut value
188
189 G4bool IsGoodForTracking() const;
190 void SetGoodForTrackingFlag(G4bool value = true);
191 // The flag of "GoodForTracking" is set by processes
192 // if this track should be tracked
193 // even if the energy is below threshold
194
195 // track length
196 G4double GetTrackLength() const;
197 void AddTrackLength(const G4double aValue);
198 // Accumulated the track length
199
200 // step information
201 const G4Step* GetStep() const;
202 void SetStep(const G4Step* aValue);
203
204 G4int GetCurrentStepNumber() const;
205 void IncrementCurrentStepNumber();
206
207 G4double GetStepLength() const;
208 void SetStepLength(G4double value);
209 // Before the end of the AlongStepDoIt loop,StepLength keeps
210 // the initial value which is determined by the shortest geometrical Step
211 // proposed by a physics process. After finishing the AlongStepDoIt,
212 // it will be set equal to 'StepLength' in G4Step.
213
214 // vertex (,where this track was created) information
215 const G4ThreeVector& GetVertexPosition() const;
216 void SetVertexPosition(const G4ThreeVector& aValue);
217
218 const G4ThreeVector& GetVertexMomentumDirection() const;
219 void SetVertexMomentumDirection(const G4ThreeVector& aValue);
220
221 G4double GetVertexKineticEnergy() const;
222 void SetVertexKineticEnergy(const G4double aValue);
223
224 const G4LogicalVolume* GetLogicalVolumeAtVertex() const;
225 void SetLogicalVolumeAtVertex(const G4LogicalVolume* );
226
227 const G4VProcess* GetCreatorProcess() const;
228 void SetCreatorProcess(const G4VProcess* aValue);
229
230 // track weight
231 // These are methods for manipulating a weight for this track.
232 G4double GetWeight() const;
233 void SetWeight(G4double aValue);
234
235 // User information
236 G4VUserTrackInformation* GetUserInformation() const;
237 void SetUserInformation(G4VUserTrackInformation* aValue);
238
239//---------
240 private:
241//---------
242 // prepare velocity table
243 void PrepareVelocityTable();
244
245// Member data
246 G4int fCurrentStepNumber; // Total steps number up to now
247 G4ThreeVector fPosition; // Current positon
248 G4double fGlobalTime; // Time since the event is created
249 G4double fLocalTime; // Time since the track is created
250 G4double fTrackLength; // Accumulated track length
251 G4int fParentID;
252 G4int fTrackID;
253
254 G4TouchableHandle fpTouchable;
255 G4TouchableHandle fpNextTouchable;
256 // Touchable Handle
257
258 G4DynamicParticle* fpDynamicParticle;
259 G4TrackStatus fTrackStatus;
260
261 G4bool fBelowThreshold;
262 // This flag is set to true if this track energy is below
263 // threshold energy in this material determined by the range cut value
264 G4bool fGoodForTracking;
265 // This flag is set by processes if this track should be tracked
266 // even if the energy is below threshold
267
268 G4double fStepLength;
269 // Before the end of the AlongStepDoIt loop, this keeps the initial
270 // Step length which is determined by the shortest geometrical Step
271 // proposed by a physics process. After finishing the AlongStepDoIt,
272 // this will be set equal to 'StepLength' in G4Step.
273
274 G4double fWeight;
275 // This is a weight for this track
276
277 const G4Step* fpStep;
278
279 G4ThreeVector fVtxPosition; // (x,y,z) of the vertex
280 G4ThreeVector fVtxMomentumDirection; // Momentum direction at the vertex
281 G4double fVtxKineticEnergy; // Kinetic energy at the vertex
282 const G4LogicalVolume* fpLVAtVertex; //Logical Volume at the vertex
283 const G4VProcess* fpCreatorProcess; // Process which created the track
284
285 G4VUserTrackInformation* fpUserInformation;
286
287 mutable G4Material* prev_mat;
288 mutable G4MaterialPropertyVector* groupvel;
289 mutable G4double prev_velocity;
290 mutable G4double prev_momentum;
291
292 static G4PhysicsLogVector* velTable;
293 static const G4double maxT;
294 static const G4double minT;
295 G4bool is_OpticalPhoton;
296};
297
298#include "G4Track.icc"
299
300#endif
301
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