3 #ifndef AliL3VERTEXARRAY_H
4 #define AliL3VERTEXARRAY_H
7 #include "AliL3RootTypes.h"
9 class AliL3VertexArray{
12 Char_t fArray[8320][8][8];
21 void FindMean(Float_t *vertex,Int_t *array, Int_t len);
22 void AnalyzeSector(Float_t *vertex, Int_t *array, Int_t len);
25 AliL3VertexArray(){fNSeed=0;fMaxSeed=400;}
26 AliL3VertexArray(AliL3VertexArray&){fNSeed=0;fMaxSeed=400;}
27 AliL3VertexArray(Int_t maxseed){fNSeed=0;fMaxSeed=maxseed;}
28 virtual ~AliL3VertexArray(){;}
30 Int_t GetContent(Float_t z,Float_t r,Int_t sec);
31 Int_t Trace(Float_t z,Float_t r,Int_t sec,Float_t vertex);
33 Double_t GetZSectorErr(){return fZSectorErr;}
34 Double_t GetZSector(){return fZSector;}
35 Int_t GetMaxSeed(){return fMaxSeed;}
36 Int_t GetNSeed(){return fNSeed;}
37 Float_t GetRSeed(Int_t i){if(i<400) return fRSeed[i]; else return -999;}
38 Float_t GetZSeed(Int_t i){if(i<400) return fZSeed[i]; else return -999;}
39 Float_t GetSecSeed(Int_t i){if(i<400) return fSecSeed[i]; else return -999;}
41 void FillSector2D(Float_t z,Float_t r,Int_t sec);
42 void FillSectorSeed2D(Float_t z,Float_t r,Int_t sec);
43 void FillSector3D(Float_t x,Float_t y, Float_t z);
44 void FillSectorSeed3D(Float_t x,Float_t y, Float_t z);
45 void FindSectorVertex(Double_t pos = 0,Double_t range = 60,Int_t nbin = 60);
48 ClassDef(AliL3VertexArray,1) //The L3 Fast Vertex Finder Base Class
52 inline void AliL3VertexArray::FillSector3D(Float_t x, Float_t y, Float_t z){
53 // Filling routine in coordinates
54 Int_t sec = Int_t( (y+.168*x)/(.336*x)*8); // 8 subsec!!
55 Float_t r = sqrt(pow(y,2)+pow(x,2));
56 FillSector2D(z,r,sec);
59 inline void AliL3VertexArray:: FillSectorSeed3D(Float_t x,Float_t y, Float_t z){
60 // Filling routine for seeds in coordinates
61 Int_t sec = Int_t( (y+.168*x)/(.336*x)*8); // 8 subsec!!
62 Float_t r = sqrt(pow(y,2)+pow(x,2));
63 FillSectorSeed2D(z,r,sec);
66 inline void AliL3VertexArray::FillSectorSeed2D(Float_t z,Float_t r,Int_t sec){
67 // Filling routine in r,z coordinates
68 if(fNSeed>=400) return;
69 fZSeed[fNSeed] = z; fRSeed[fNSeed] = r; fSecSeed[fNSeed] = sec;
73 inline void AliL3VertexArray::FillSector2D(Float_t z,Float_t r,Int_t sec){
74 // Filling routine for seeds in r,z coordinates
75 if(z>r||z<=0||r<220||r>=252) return;
76 fArray[Int_t(z/r*32*260)][(Int_t(r-220))/4][sec] += 1;
79 inline Int_t AliL3VertexArray::GetContent(Float_t z,Float_t r,Int_t sec){
80 // Return content of array in r,z coordinates
81 if(z>r||z<=0||r<220||r>=252) return 0;
82 return fArray[Int_t(z/r*32*260)][(Int_t(r-220))/4][sec];
85 inline void AliL3VertexArray::ResetSector(){
90 for(Int_t i =0;i<400;i++)
91 fZSeed[i] = fRSeed[i] = fSecSeed[i] = 0;
92 for(Int_t z=0;z<8320;z++)
93 for(Int_t r=0;r<8;r++)
94 for(Int_t sec =0;sec<8;sec++)
95 fArray[z][r][sec] = 0;
98 inline Int_t AliL3VertexArray::Trace(Float_t z,Float_t r,Int_t sec,Float_t vertex){
99 // count the number of entries along starting from z,r to vertex,0
101 for(Int_t i = 0;i<8;i++){
102 Float_t ry = 222 +(i*4);
103 Float_t zx = (ry/r)*(z-vertex)+vertex;
104 cont += GetContent(zx,ry,sec);
106 if(cont < 5) return 0;