1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 Revision 1.3 2000/06/26 10:01:26 pcrochet
19 global variables removed
21 Revision 1.2 2000/06/15 07:58:48 morsch
22 Code from MUON-dev joined
24 Revision 1.1.2.1 2000/06/09 21:51:03 morsch
25 Code from AliMUONSegResTrigger.cxx
33 Revision 1.1.2.4 2000/04/26 12:33:25 morsch
34 Minor changes in some methods (CP)
36 Revision 1.1.2.3 2000/03/20 18:14:16 morsch
39 Revision 1.1.2.2 2000/02/20 07:50:49 morsch
40 Bugs in Dpx, Dpy and ISector methods corrected (P.C.)
42 Revision 1.1.2.1 2000/02/17 14:33:49 morsch
43 Draft version from P. Crochet
47 #include "AliMUONSegmentationTriggerX.h"
48 #include "AliMUONTriggerConstants.h"
52 #include "AliMUONChamber.h"
54 ClassImp(AliMUONSegmentationTriggerX)
56 //------------------------------------------------------------------
57 void AliMUONSegmentationTriggerX::Init(Int_t chamber)
59 // intialize X segmentation
60 cout << "Initialize Trigger Chamber Geometry X " << "\n";
61 AliMUONSegmentationTrigger::Init(chamber);
63 // calculate x & y position of X strips
64 Int_t nModule=AliMUONTriggerConstants::Nmodule();
65 for (Int_t imodule=0; imodule<nModule; imodule++) {
66 Float_t width=StripSizeX(AliMUONTriggerConstants::ModuleId(imodule));
67 Int_t nStrip=AliMUONTriggerConstants::NstripX(imodule);
68 for (Int_t istrip=0; istrip<nStrip; istrip++){
69 fXofxsmin[imodule][istrip] = AliMUONTriggerConstants::XcMin(imodule)*fZscale;
70 fXofxsmax[imodule][istrip] = AliMUONTriggerConstants::XcMax(imodule)*fZscale;
72 fYofxsmin[imodule][istrip] = (fYcmin[imodule]+width*(istrip))*fZscale;
73 fYofxsmax[imodule][istrip] = (fYcmin[imodule]+width*(istrip+1))*fZscale;
78 //------------------------------------------------------------------
79 void AliMUONSegmentationTriggerX::GetPadIxy(Float_t x,Float_t y,Int_t &ix,Int_t &iy){
80 // Returns pad coordinates (ix,iy) for given real coordinates (x,y)
81 // x,y = real coordinates; ix = module number , iy = strip number
84 Int_t nModule=AliMUONTriggerConstants::Nmodule();
85 for (Int_t imodule=0; imodule<nModule; imodule++) {
86 Int_t nStrip=AliMUONTriggerConstants::NstripX(imodule);
87 for (Int_t istrip=0; istrip<nStrip; istrip++){
88 if (x>fXofxsmin[imodule][istrip]&&x<fXofxsmax[imodule][istrip]&&
89 y>fYofxsmin[imodule][istrip]&&y<fYofxsmax[imodule][istrip]){
90 ix = AliMUONTriggerConstants::ModuleId(imodule);
97 //------------------------------------------------------------------
98 void AliMUONSegmentationTriggerX::GetPadCxy(Int_t ix, Int_t iy, Float_t &x, Float_t &y){
99 // Returns real coordinates (x,y) for given pad coordinates (ix,iy)
100 // ix = module number , iy = strip number; x,y = center of strip
103 Int_t nModule=AliMUONTriggerConstants::Nmodule();
105 for (Int_t imodule=0; imodule<nModule; imodule++) {
106 if (AliMUONTriggerConstants::ModuleId(imodule)==ix){
107 x=fXofxsmin[imodule][iy]+(fXofxsmax[imodule][iy]-fXofxsmin[imodule][iy])/2.;
108 y=fYofxsmin[imodule][iy]+(fYofxsmax[imodule][iy]-fYofxsmin[imodule][iy])/2.;
113 //------------------------------------------------------------------
114 void AliMUONSegmentationTriggerX::SetPadSize(Float_t p1, Float_t p2)
122 //------------------------------------------------------------------
123 void AliMUONSegmentationTriggerX::
124 Neighbours(Int_t iX, Int_t iY, Int_t* Nlist, Int_t Xlist[2], Int_t Ylist[2]){
125 // Returns list of next neighbours for given Pad (ix, iy)
127 Int_t absiX=TMath::Abs(iX);
131 Int_t numModule=ModuleNumber(absiX);
133 if (iY<AliMUONTriggerConstants::NstripX(numModule)-1) { // strip up in same module
139 if (iY>0) { // strip down in same module
141 Xlist[*Nlist-1]=absiX;
142 Ylist[*Nlist-1]=iY-1;
145 if (iX<0) { // left side of chamber
146 for (Int_t i=0; i<*Nlist; i++) {Xlist[i]=-Xlist[i];}
151 //------------------------------------------------------------------
152 void AliMUONSegmentationTriggerX::SetPad(Int_t ix, Int_t iy)
154 // Sets virtual pad coordinates, needed for evaluating pad response
155 // outside the tracking program
156 GetPadCxy(ix,iy,fx,fy);
157 GetPadIxy(fx,fy,fix,fiy);
158 fSector=Sector(ix,iy);
161 //------------------------------------------------------------------
162 Int_t AliMUONSegmentationTriggerX::ISector()
165 //------------------------------------------------------------------
166 Int_t AliMUONSegmentationTriggerX::Ix()
169 //------------------------------------------------------------------
170 Int_t AliMUONSegmentationTriggerX::Iy()
173 //------------------------------------------------------------------
174 Float_t AliMUONSegmentationTriggerX::Dpx(Int_t isec)
176 // returns x size of x strips for sector isec
180 } else if (isec==2) {
182 } else if (isec==3) {
184 } else if (isec==4) {
186 } else if (isec==5) {
188 } else if (isec==6) {
195 //------------------------------------------------------------------
196 Float_t AliMUONSegmentationTriggerX::Dpy(Int_t isec)
198 // returns y size of x strips for sector isec
201 return 1.0625*fZscale;
202 } else if (isec==2) {
203 return 1.0625*fZscale;
204 } else if (isec==3) {
205 return 1.0625*fZscale;
206 } else if (isec==4) {
207 return 2.125*fZscale;
208 } else if (isec==5) {
210 } else if (isec==6) {
217 //------------------------------------------------------------------
218 void AliMUONSegmentationTriggerX::SetHit(Float_t xhit, Float_t yhit)
220 // set hit during disIntegration
221 AliMUONSegmentationTrigger::SetHit(xhit,yhit);
224 //------------------------------------------------------------------
225 Int_t AliMUONSegmentationTriggerX::Sector(Int_t ix, Int_t iy)
227 // Returns sector number for given module
230 Int_t absix=TMath::Abs(ix);
231 Int_t iwidth=Int_t(StripSizeX(absix));
235 } else if (absix==41||absix==61) {
237 } else if (iwidth==1) {
239 } else if (iwidth==2) {
241 } else if ((absix>=11&&absix<17)||(absix>=91&&absix<97)) {
243 } else if (iwidth==4) {
250 //------------------------------------------------------------------
251 void AliMUONSegmentationTriggerX::
252 IntegrationLimits(Float_t& x1, Float_t& x2, Float_t& x3, Float_t& width)
254 // returns quantities needed to evaluate neighbour strip response
257 Float_t xstrip,ystrip;
258 GetPadIxy(fxhit,fyhit,ix,iy);
259 GetPadCxy(ix,iy,xstrip,ystrip);
260 x1=fyhit; // hit y position
261 x2=ystrip; // y coordinate of the main strip
262 x3=fy; // current strip real y coordinate
263 width=StripSizeX(ix); // width of the main strip