]> git.uio.no Git - u/mrichter/AliRoot.git/blob - STEER/AliTrackPointArray.cxx
Alignment framework (C.Cheshkov). More information is available in http://agenda...
[u/mrichter/AliRoot.git] / STEER / AliTrackPointArray.cxx
1 /**************************************************************************
2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3  *                                                                        *
4  * Author: The ALICE Off-line Project.                                    *
5  * Contributors are mentioned in the code where appropriate.              *
6  *                                                                        *
7  * Permission to use, copy, modify and distribute this software and its   *
8  * documentation strictly for non-commercial purposes is hereby granted   *
9  * without fee, provided that the above copyright notice appears in all   *
10  * copies and that both the copyright notice and this permission notice   *
11  * appear in the supporting documentation. The authors make no claims     *
12  * about the suitability of this software for any purpose. It is          *
13  * provided "as is" without express or implied warranty.                  *
14  **************************************************************************/
15
16 //////////////////////////////////////////////////////////////////////////////
17 //                          Class AliTrackPointArray                        //
18 //   This class contains the ESD track space-points which are used during   //
19 //   the alignment procedures. Each space-point consist of 3 coordinates    //
20 //   (and their errors) and the index of the sub-detector which contains    //
21 //   the space-point.                                                       //
22 //   cvetan.cheshkov@cern.ch 3/11/2005                                      //
23 //////////////////////////////////////////////////////////////////////////////
24
25 #include "AliTrackPointArray.h"
26
27 ClassImp(AliTrackPointArray)
28
29 //______________________________________________________________________________
30 AliTrackPointArray::AliTrackPointArray()
31 {
32   fNPoints = fSize = 0;
33   fX = fY = fZ = 0;
34   fVolumeID = 0;
35   fCov = 0;
36 }
37
38 //______________________________________________________________________________
39 AliTrackPointArray::AliTrackPointArray(Int_t npoints):
40   fNPoints(npoints)
41 {
42   // Constructor
43   //
44   fSize = 6*npoints;
45   fX = new Float_t[npoints];
46   fY = new Float_t[npoints];
47   fZ = new Float_t[npoints];
48   fVolumeID = new UShort_t[npoints];
49   fCov = new Float_t[fSize];
50 }
51
52 //______________________________________________________________________________
53 AliTrackPointArray::AliTrackPointArray(const AliTrackPointArray &array):
54   TObject(array)
55 {
56   // Copy constructor
57   //
58   fNPoints = array.fNPoints;
59   fSize = array.fSize;
60   fX = new Float_t[fNPoints];
61   fY = new Float_t[fNPoints];
62   fZ = new Float_t[fNPoints];
63   fVolumeID = new UShort_t[fNPoints];
64   fCov = new Float_t[fSize];
65   memcpy(fX,array.fX,fNPoints*sizeof(Float_t));
66   memcpy(fY,array.fY,fNPoints*sizeof(Float_t));
67   memcpy(fZ,array.fZ,fNPoints*sizeof(Float_t));
68   memcpy(fVolumeID,array.fVolumeID,fNPoints*sizeof(UShort_t));
69   memcpy(fCov,array.fCov,fSize*sizeof(Float_t));
70 }
71
72 //_____________________________________________________________________________
73 AliTrackPointArray &AliTrackPointArray::operator =(const AliTrackPointArray& array)
74 {
75   // assignment operator
76   //
77   if(this==&array) return *this;
78   ((TObject *)this)->operator=(array);
79
80   fNPoints = array.fNPoints;
81   fSize = array.fSize;
82   fX = new Float_t[fNPoints];
83   fY = new Float_t[fNPoints];
84   fZ = new Float_t[fNPoints];
85   fVolumeID = new UShort_t[fNPoints];
86   fCov = new Float_t[fSize];
87   memcpy(fX,array.fX,fNPoints*sizeof(Float_t));
88   memcpy(fY,array.fY,fNPoints*sizeof(Float_t));
89   memcpy(fZ,array.fZ,fNPoints*sizeof(Float_t));
90   memcpy(fVolumeID,array.fVolumeID,fNPoints*sizeof(UShort_t));
91   memcpy(fCov,array.fCov,fSize*sizeof(Float_t));
92
93   return *this;
94 }
95
96 //______________________________________________________________________________
97 AliTrackPointArray::~AliTrackPointArray()
98 {
99   // Destructor
100   //
101   delete [] fX;
102   delete [] fY;
103   delete [] fZ;
104   delete [] fVolumeID;
105   delete [] fCov;
106 }
107
108
109 //______________________________________________________________________________
110 Bool_t AliTrackPointArray::AddPoint(Int_t i, const AliTrackPoint *p)
111 {
112   // Add a point to the array at position i
113   //
114   if (i >= fNPoints) return kFALSE;
115   fX[i] = p->GetX();
116   fY[i] = p->GetY();
117   fZ[i] = p->GetZ();
118   fVolumeID[i] = p->GetVolumeID();
119   memcpy(&fCov[6*i],p->GetCov(),6*sizeof(Float_t));
120   return kTRUE;
121 }
122
123 //______________________________________________________________________________
124 Bool_t AliTrackPointArray::GetPoint(AliTrackPoint &p, Int_t i) const
125 {
126   // Get the point at position i
127   //
128   if (i >= fNPoints) return kFALSE;
129   p.SetXYZ(fX[i],fY[i],fZ[i],&fCov[6*i]);
130   p.SetVolumeID(fVolumeID[i]);
131   return kTRUE;
132 }
133
134 //______________________________________________________________________________
135 Bool_t AliTrackPointArray::HasVolumeID(UShort_t volid) const
136 {
137   // This method checks if the array
138   // has at least one hit in the detector
139   // volume defined by volid
140   Bool_t check = kFALSE;
141   for (Int_t ipoint = 0; ipoint < fNPoints; ipoint++)
142     if (fVolumeID[ipoint] == volid) check = kTRUE;
143
144   return check;
145 }
146
147 ClassImp(AliTrackPoint)
148
149 //______________________________________________________________________________
150 AliTrackPoint::AliTrackPoint()
151 {
152   // Default constructor
153   //
154   fX = fY = fZ = 0;
155   fVolumeID = 0;
156   memset(fCov,0,6*sizeof(Float_t));
157 }
158
159
160 //______________________________________________________________________________
161 AliTrackPoint::AliTrackPoint(Float_t x, Float_t y, Float_t z, const Float_t *cov, UShort_t volid)
162 {
163   // Constructor
164   //
165   SetXYZ(x,y,z,cov);
166   SetVolumeID(volid);
167 }
168
169 //______________________________________________________________________________
170 AliTrackPoint::AliTrackPoint(const Float_t *xyz, const Float_t *cov, UShort_t volid)
171 {
172   // Constructor
173   //
174   SetXYZ(xyz[0],xyz[1],xyz[2],cov);
175   SetVolumeID(volid);
176 }
177
178 //______________________________________________________________________________
179 AliTrackPoint::AliTrackPoint(const AliTrackPoint &p):
180   TObject(p)
181 {
182   // Copy constructor
183   //
184   SetXYZ(p.fX,p.fY,p.fZ,&(p.fCov[0]));
185   SetVolumeID(p.fVolumeID);
186 }
187
188 //_____________________________________________________________________________
189 AliTrackPoint &AliTrackPoint::operator =(const AliTrackPoint& p)
190 {
191   // assignment operator
192   //
193   if(this==&p) return *this;
194   ((TObject *)this)->operator=(p);
195
196   SetXYZ(p.fX,p.fY,p.fZ,&(p.fCov[0]));
197   SetVolumeID(p.fVolumeID);
198
199   return *this;
200 }
201
202 //______________________________________________________________________________
203 void AliTrackPoint::SetXYZ(Float_t x, Float_t y, Float_t z, const Float_t *cov)
204 {
205   // Set XYZ coordinates and their cov matrix
206   //
207   fX = x;
208   fY = y;
209   fZ = z;
210   if (cov)
211     memcpy(fCov,cov,6*sizeof(Float_t));
212 }
213
214 //______________________________________________________________________________
215 void AliTrackPoint::SetXYZ(const Float_t *xyz, const Float_t *cov)
216 {
217   // Set XYZ coordinates and their cov matrix
218   //
219   SetXYZ(xyz[0],xyz[1],xyz[2],cov);
220 }
221
222 //______________________________________________________________________________
223 void AliTrackPoint::GetXYZ(Float_t *xyz, Float_t *cov) const
224 {
225   xyz[0] = fX;
226   xyz[1] = fY;
227   xyz[2] = fZ;
228   if (cov)
229     memcpy(cov,fCov,6*sizeof(Float_t));
230 }