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237c933d | 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 | ||
237c933d | 16 | #include "AliRICHSegmentationV1.h" |
17 | ||
237c933d | 18 | ClassImp(AliRICHSegmentationV1) |
c712cb2f | 19 | //__________________________________________________________________________________________________ |
237c933d | 20 | AliRICHSegmentationV1::AliRICHSegmentationV1() |
c712cb2f | 21 | {// Default constructor for AliRICHSegmantionV1 (with dead zones) |
237c933d | 22 | |
ad185d05 | 23 | fNpx=144; // number of pads along X direction |
24 | fNpy=160; // number of pads along Y direction | |
25 | fDeadZone=3.0; // space between CsI photocathods in cm | |
26 | fDpx=0.84; // pad width in cm | |
27 | fDpy=0.80; // pad heights in cm | |
28 | fWireD=0.84/2; | |
29 | fSector=-1; | |
9da0c825 | 30 | Init(0); // ??? remove 0 |
237c933d | 31 | } |
c712cb2f | 32 | //__________________________________________________________________________________________________ |
cc23c5c6 | 33 | void AliRICHSegmentationV1::Init(Int_t /*id*/) |
34 | {//Recalculates all the values after some of them have been changed | |
35 | ||
9da0c825 | 36 | Float_t csi_length = fNpy*fDpy + fDeadZone; |
37 | Float_t csi_width = fNpx*fDpx + 2*fDeadZone; | |
9350cdcb | 38 | |
9da0c825 | 39 | fPadPlane_Width = (csi_width - 2*fDeadZone)/3; |
40 | fPadPlane_Length = (csi_length - fDeadZone)/2; | |
9350cdcb | 41 | } |
c712cb2f | 42 | //__________________________________________________________________________________________________ |
9350cdcb | 43 | Int_t AliRICHSegmentationV1::Sector(Float_t x, Float_t y) |
c712cb2f | 44 | {// Calculate in which sector is the hit |
6d4af9e4 | 45 | |
237c933d | 46 | fSector=-1; |
47 | ||
9350cdcb | 48 | //Parametrized definition |
6d4af9e4 | 49 | |
9350cdcb | 50 | if (y<-fDeadZone/2) |
6d4af9e4 | 51 | { |
9350cdcb | 52 | if (x> fPadPlane_Width/2 +fDeadZone) |
6d4af9e4 | 53 | { |
9350cdcb | 54 | if ( x<fPadPlane_Width/2 +fDeadZone + fPadPlane_Width) |
6d4af9e4 | 55 | fSector=0; |
56 | } | |
9350cdcb | 57 | if (x< fPadPlane_Width/2) |
6d4af9e4 | 58 | { |
9350cdcb | 59 | if (x> -( fPadPlane_Width/2)) |
6d4af9e4 | 60 | fSector=2; |
61 | } | |
9350cdcb | 62 | if (x< -( fPadPlane_Width/2 +fDeadZone)) |
6d4af9e4 | 63 | { |
9350cdcb | 64 | if (x> -( fPadPlane_Width/2 +fDeadZone + fPadPlane_Width)) |
6d4af9e4 | 65 | fSector=4; |
66 | } | |
67 | } | |
9350cdcb | 68 | else if (y>fDeadZone/2) |
6d4af9e4 | 69 | { |
9350cdcb | 70 | if (x> fPadPlane_Width/2 +fDeadZone) |
6d4af9e4 | 71 | { |
9350cdcb | 72 | if (x< fPadPlane_Width/2 +fDeadZone + fPadPlane_Width) |
73 | fSector=1; | |
6d4af9e4 | 74 | } |
9350cdcb | 75 | if (x< fPadPlane_Width/2) |
6d4af9e4 | 76 | { |
9350cdcb | 77 | if (x> -( fPadPlane_Width/2)) |
78 | fSector=3; | |
6d4af9e4 | 79 | } |
9350cdcb | 80 | if (x< -( fPadPlane_Width/2 +fDeadZone)) |
6d4af9e4 | 81 | { |
9350cdcb | 82 | if (x> -( fPadPlane_Width/2 +fDeadZone + fPadPlane_Width)) |
83 | fSector=5; | |
6d4af9e4 | 84 | } |
237c933d | 85 | } |
9350cdcb | 86 | |
237c933d | 87 | return fSector; |
c712cb2f | 88 | }//Sector() |
89 | //__________________________________________________________________________________________________ | |
a2f7eaf6 | 90 | void AliRICHSegmentationV1::GetPadI(Float_t x, Float_t y, Int_t &ix, Int_t &iy) |
237c933d | 91 | { |
237c933d | 92 | |
2cc4f1ad | 93 | ix=9999; //PH Fake values which should not be returned |
94 | iy=9999; | |
95 | ||
237c933d | 96 | Int_t sector=Sector(x,y); |
97 | ||
237c933d | 98 | |
237c933d | 99 | if (sector==0) |
100 | { | |
9350cdcb | 101 | ix = Int_t ((x-fDeadZone)/fDpx); |
102 | iy = Int_t ((y+fDeadZone/2)/fDpy)-1; | |
237c933d | 103 | } |
104 | if (sector==1) | |
105 | { | |
9350cdcb | 106 | ix = Int_t ((x-fDeadZone)/fDpx); |
107 | iy = Int_t ((y-fDeadZone/2)/fDpy); | |
237c933d | 108 | } |
109 | if (sector==2) | |
110 | { | |
9350cdcb | 111 | ix = (x>=0)? ix = Int_t (x/fDpx) : ix = Int_t (x/fDpx)-1; |
112 | iy = Int_t ((y+fDeadZone/2)/fDpy)-1; | |
237c933d | 113 | } |
114 | if (sector==3) | |
115 | { | |
9350cdcb | 116 | ix = (x>=0)? ix = Int_t (x/fDpx) : ix = Int_t (x/fDpx)-1; |
117 | iy = Int_t ((y-fDeadZone/2)/fDpy); | |
237c933d | 118 | } |
119 | if (sector==4) | |
120 | { | |
9350cdcb | 121 | ix = Int_t ((x+fDeadZone)/fDpx)-1; |
122 | iy = Int_t ((y+fDeadZone/2)/fDpy)-1; | |
237c933d | 123 | } |
124 | if (sector==5) | |
125 | { | |
9350cdcb | 126 | ix = Int_t ((x+fDeadZone)/fDpx)-1; |
127 | iy = Int_t ((y-fDeadZone/2)/fDpy); | |
237c933d | 128 | } |
9350cdcb | 129 | |
237c933d | 130 | |
131 | if (sector==-1) | |
132 | { | |
72e468a5 | 133 | ix = fIxmax; |
134 | iy = fIymax; | |
237c933d | 135 | } |
136 | ||
137 | if (iy > fNpy) iy= fNpy; | |
138 | if (iy < -fNpy) iy=-fNpy; | |
139 | if (ix > fNpx) ix= fNpx; | |
140 | if (ix < -fNpx) ix=-fNpx; | |
c712cb2f | 141 | }//GetPadI() |
142 | //__________________________________________________________________________________________________ | |
143 | void AliRICHSegmentationV1::GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y) | |
144 | {// returns real coordinates (x,y) for given pad coordinates (ix,iy) | |
237c933d | 145 | Int_t sector=-1; |
146 | ||
6d4af9e4 | 147 | |
9350cdcb | 148 | Float_t padplane_width = fNpx/3; |
6d4af9e4 | 149 | |
9350cdcb | 150 | if (iy<0) |
6d4af9e4 | 151 | { |
9350cdcb | 152 | if (ix < fNpx/2) |
6d4af9e4 | 153 | { |
9350cdcb | 154 | if (ix >= padplane_width/2) |
6d4af9e4 | 155 | sector=0; |
156 | } | |
9350cdcb | 157 | if (ix< padplane_width/2) |
6d4af9e4 | 158 | { |
9350cdcb | 159 | if (ix >= -(padplane_width/2)) |
6d4af9e4 | 160 | sector=2; |
161 | } | |
9350cdcb | 162 | if (ix >= -(fNpx/2)) |
6d4af9e4 | 163 | { |
9350cdcb | 164 | if (ix < -(padplane_width/2)) |
6d4af9e4 | 165 | sector=4; |
166 | } | |
167 | } | |
9350cdcb | 168 | if (iy>=0) |
6d4af9e4 | 169 | { |
9350cdcb | 170 | if (ix < fNpx/2) |
6d4af9e4 | 171 | { |
9350cdcb | 172 | if (ix >= padplane_width/2) |
173 | sector=1; | |
6d4af9e4 | 174 | } |
9350cdcb | 175 | if (ix< padplane_width/2) |
6d4af9e4 | 176 | { |
9350cdcb | 177 | if (ix >= -(padplane_width/2)) |
178 | sector=3; | |
6d4af9e4 | 179 | } |
9350cdcb | 180 | if (ix >= -(fNpx/2)) |
6d4af9e4 | 181 | { |
9350cdcb | 182 | if (ix < -(padplane_width/2)) |
183 | sector=5; | |
6d4af9e4 | 184 | } |
185 | } | |
237c933d | 186 | |
187 | if (sector==0) | |
188 | { | |
189 | //x = (ix>0) ? Float_t(ix*fDpx)-fDpx/2. : Float_t(ix*fDpx)-fDpx/2.; | |
190 | //y = (iy>0) ? Float_t(iy*fDpy)-fDpy/2. : Float_t(iy*fDpy)-fDpy/2.; | |
9350cdcb | 191 | x = Float_t(ix)*fDpx+fDpx/2+fDeadZone; |
192 | y = Float_t(iy)*fDpy+fDpy/2-fDeadZone/2; | |
237c933d | 193 | } |
194 | if (sector==1) | |
195 | { | |
9350cdcb | 196 | x = Float_t(ix)*fDpx+fDpx/2+fDeadZone; |
197 | y = Float_t(iy)*fDpy+fDpy/2+fDeadZone/2; | |
237c933d | 198 | } |
199 | if (sector==2) | |
200 | { | |
9350cdcb | 201 | x = (ix>=0) ? x = Float_t(ix)*fDpx+fDpx/2 : x = Float_t(ix)*fDpx+fDpx/2; |
202 | y = Float_t(iy)*fDpy+fDpy/2-fDeadZone/2; | |
237c933d | 203 | } |
204 | if (sector==3) | |
205 | { | |
9350cdcb | 206 | x = (ix>=0) ? x = Float_t(ix)*fDpx+fDpx/2 : x = Float_t(ix)*fDpx+fDpx/2; |
207 | y = Float_t(iy)*fDpy+fDpy/2+fDeadZone/2; | |
237c933d | 208 | } |
209 | if (sector==4) | |
210 | { | |
9350cdcb | 211 | x = Float_t(ix)*fDpx+fDpx/2-fDeadZone; |
212 | y = Float_t(iy)*fDpy+fDpy/2-fDeadZone/2; | |
237c933d | 213 | } |
214 | if (sector==5) | |
215 | { | |
9350cdcb | 216 | x = Float_t(ix)*fDpx+fDpx/2-fDeadZone; |
217 | y = Float_t(iy)*fDpy+fDpy/2+fDeadZone/2; | |
237c933d | 218 | } |
c712cb2f | 219 | }//GetPadC |
220 | //__________________________________________________________________________________________________ | |
221 | void AliRICHSegmentationV1::IntegrationLimits(Float_t& x1,Float_t& x2,Float_t& y1, Float_t& y2) | |
237c933d | 222 | { |
72e468a5 | 223 | x1=fXhit-fX-fDpx/2.; |
237c933d | 224 | x2=x1+fDpx; |
72e468a5 | 225 | y1=fYhit-fY-fDpy/2.; |
237c933d | 226 | y2=y1+fDpy; |
227 | } |