New MUON data container AliMUONData implementation
[u/mrichter/AliRoot.git] / MUON / AliMUONSegmentationSlatModuleN.cxx
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4c503756 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
88cb7938 16/* $Id$ */
4c503756 17
18/////////////////////////////////////////////////////
19// Segmentation classes for slat modules //
20// to be used with AluMUONSegmentationSlat //
21/////////////////////////////////////////////////////
22
23
24#include "AliMUONSegmentationSlatModuleN.h"
25#include <TMath.h>
70479d0e 26#include <Riostream.h>
4c503756 27
28#include "AliMUONSegmentationV01.h"
29
30//___________________________________________
31ClassImp(AliMUONSegmentationSlatModuleN)
32
33AliMUONSegmentationSlatModuleN::AliMUONSegmentationSlatModuleN()
34{
35// Default constructor
36}
37
e9e4cdf2 38AliMUONSegmentationSlatModuleN::AliMUONSegmentationSlatModuleN(Int_t nsec)
39 : AliMUONSegmentationSlatModule(nsec)
40{
41// Non default constructor
42}
43
4c503756 44
ce3f5e87 45Float_t AliMUONSegmentationSlatModuleN::Dpx(Int_t /*isec*/) const
4c503756 46{
47//
48// Returns x-pad size for given sector isec
49 return fDpx;
50}
51
52Float_t AliMUONSegmentationSlatModuleN::Dpy(Int_t isec) const
53{
54//
55// Returns y-pad size for given sector isec
56 return (*fDpxD)[isec];
57}
58
59
60void AliMUONSegmentationSlatModuleN::
61GetPadI(Float_t x, Float_t y, Int_t &ix, Int_t &iy)
62{
63// Returns pad coordinates (ix,iy) for given real coordinates (x,y)
64//
65 ix = Int_t(x/fDpx)+1;
66 if (ix > fNpx) ix= fNpx;
67//
68// Find sector isec
69 Int_t isec=-1;
70 for (Int_t i = fNsec-1; i > 0; i--) {
71 if (x >= fCx[i-1]) {
72 isec=i;
f30dea32 73 if (fCx[isec] == fCx[isec-1] && isec > 1) isec--;
4c503756 74 break;
75 }
76 }
77//
78//
f30dea32 79
4c503756 80 if (isec == -1) {
81 ix = 0;
82 iy = 0;
83 } else {
84 iy = Int_t(y/(*fDpxD)[isec])+1;
85 }
86}
87
88void AliMUONSegmentationSlatModuleN::
89GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y)
90{
91// Returns real coordinates (x,y) for given pad coordinates (ix,iy)
92//
93 x = Float_t(ix*fDpx)-fDpx/2.;
94//
95// Find sector isec
96 Int_t isec=Sector(ix,iy);
97 if (isec == -1) printf("\n gtpadc2 Warning isec !\n");
98 y = iy*(*fDpxD)[isec]-(*fDpxD)[isec]/2.;
99}
100
101
102void AliMUONSegmentationSlatModuleN::NextPad()
103{
104// Stepper for the iteration over pads
105//
106 Float_t xc,yc;
107 Int_t ixc;
108 // step up
109 if ((fY + Dpy(fSector)) < fYmax) {
110 fIy++;
111 GetPadC(fIx,fIy,fX,fY);
112// step right
113 } else if (fIx != fIxmax) {
114 fIx++;
115// get y-position of next row (yc), xc not used here
116 GetPadC(fIx,fIy,xc,yc);
117// get x-pad coordiante for 1 pad in row (fIx)
118 GetPadI(xc,fYmin,ixc,fIy);
119 GetPadC(fIx,fIy,fX,fY);
120 fSector=Sector(fIx,fIy);
121 } else {
122 fIx=fIy=-1;
123 }
124
125 if (fIy > fNpyS[fSector]) printf("\n this pad %f %f %d %d \n",fX,fY,fIx,fIy);
126 GetPadC(fIx, fIy, xc, yc);
d4ee3c3e 127// printf("\n Next Pad (n)%d %d %f %f %d %f %d ", fIx,fIy,fX,fY,fSector, fYmax, fIxmax);
4c503756 128}
129
130Int_t AliMUONSegmentationSlatModuleN::MorePads()
de05461e 131{
4c503756 132// Stopping condition for the iterator over pads
133//
134//
135// Are there more pads in the integration region
de05461e 136
d4ee3c3e 137 if (fIy == -1) {
4c503756 138 return 0;
139 } else {
140 return 1;
141 }
142}
143
144void AliMUONSegmentationSlatModuleN::
145Neighbours(Int_t iX, Int_t iY, Int_t* Nlist, Int_t Xlist[10], Int_t Ylist[10])
146{
4c503756 147// Returns list of next neighbours for given Pad (iX, iY)
148//
149//
150 Int_t i=0;
151 Float_t x,y;
152 Int_t ix,iy,isec1,isec2;
153 Float_t kEpsil= 0.001;
154
155//
156// step up
157 Int_t isec=Sector(iX, iY);
158
159 if (iY+1 <= fNpyS[isec]) {
160 Xlist[i]=iX;
161 Ylist[i++]=iY+1;
162 }
163//
164// step down
165 if (iY-1 > 0) {
166 Xlist[i]=iX;
167 Ylist[i++]=iY-1;
168 }
169//
170//
171// step right
172
173 if (iX+1 <= fNpx) {
174
175
176 GetPadC(iX, iY, x, y);
177 GetPadI(x+fDpx, y, ix, iy);
178 Xlist[i]=iX+1;
179 Ylist[i++]=iy;
180 }
181//
182// step left
183 if (iX-1 > 0) {
184 isec1=Sector(iX, iY);
185 isec2=Sector(iX-1, iY);
186 if (isec1==isec2) {
187 Xlist[i]=iX-1;
188 Ylist[i++]=iY;
189 } else {
190 GetPadC(iX, iY, x, y);
191 GetPadI(x-fDpx, y+kEpsil, ix, iy);
192 if (ix != -1) {
193 Xlist[i]=iX-1;
194 Ylist[i++]=iy;
195 }
196 GetPadI(x-fDpx, y-kEpsil, ix, iy);
197 if (ix != -1) {
198 Xlist[i]=iX-1;
199 Ylist[i++]=iy;
200 }
201 }
202 }
203 *Nlist=i;
204}
205
206
207void AliMUONSegmentationSlatModuleN::Init(Int_t chamber)
208{
4c503756 209//
210// Fill the arrays fCx (x-contour) for each sector
211// These arrays help in converting from real to pad co-ordinates and
212// vice versa
213//
214// Segmentation is defined by rectangular modules approximating
215// concentric circles as shown below
216//
217// PCB module size in cm
de05461e 218
9e1a0ddb 219 // printf("\n Initialise Segmentation SlatModuleN \n");
de05461e 220
221
4c503756 222 fDxPCB=40;
223 fDyPCB=40;
224//
225// number of pad rows per PCB
226//
227 fNpxPCB = Int_t(fDxPCB/fDpx) ;
228//
229// Calculate padsize along y
230 (*fDpxD)[fNsec-1]=fDpy;
231 if (fNsec > 1) {
232 for (Int_t i=fNsec-2; i>=0; i--){
233 (*fDpxD)[i]=(*fDpxD)[fNsec-1]/(*fNDiv)[i];
4c503756 234 }
235 }
236//
237// fill the arrays defining the pad segmentation boundaries
238//
239//
240// Loop over sectors (isec=0 is the dead space surounding the beam pipe)
241
242 for (Int_t isec=0; isec<4; isec++) {
243 if (isec==0) {
244 fCx[0] = 0;
245 fNpxS[0] = 0;
246 fNpyS[0] = 0;
247 } else {
248 fNpxS[isec] = fNpxS[isec-1] + fPcbBoards[isec]*fNpxPCB;
249 fNpyS[isec] = Int_t(fDyPCB/fDpy)*(*fNDiv)[isec];
4c503756 250 fCx[isec] = fCx[isec-1] + fPcbBoards[isec]*fDxPCB;
251 fNpx += fPcbBoards[isec] * fNpxPCB;
252 }
253 } // sectors
254
255 fNpx=fNpxS[3];
256 fNpy=Int_t(fDyPCB/fDpy)*(*fNDiv)[1];
de2f6d11 257//
258 fId = chamber;
259
4c503756 260}
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