- Adapted comments for Doxygen
[u/mrichter/AliRoot.git] / MUON / AliMUONTriggerGeometryBuilder.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 // $Id$
17
18 // -----------------------------------
19 // Class AliMUONTriggerGeometryBuilder
20 // -----------------------------------
21 // MUON Trigger stations geometry 
22 // construction class.
23 // Author: Philippe Crochet (LPCCFd)
24
25 #include <TVirtualMC.h>
26 #include <TGeoMatrix.h>
27
28 #include "AliLog.h"
29 #include "AliRun.h"
30
31 #include "AliMUONTriggerGeometryBuilder.h"
32 #include "AliMUON.h"
33 #include "AliMUONConstants.h"
34 #include "AliMUONGeometryModule.h"
35 #include "AliMUONGeometryEnvelopeStore.h"
36
37 /// \cond CLASSIMP
38 ClassImp(AliMUONTriggerGeometryBuilder)
39 /// \endcond
40
41 //______________________________________________________________________________
42 AliMUONTriggerGeometryBuilder::AliMUONTriggerGeometryBuilder(AliMUON* muon)
43  : AliMUONVGeometryBuilder(10, 11, 12, 13),
44    fMUON(muon)
45 {
46 // Standard constructor
47
48 }
49
50 //______________________________________________________________________________
51 AliMUONTriggerGeometryBuilder::AliMUONTriggerGeometryBuilder()
52  : AliMUONVGeometryBuilder(),
53    fMUON(0)
54 {
55 // Default constructor
56 }
57
58
59 //______________________________________________________________________________
60 AliMUONTriggerGeometryBuilder::AliMUONTriggerGeometryBuilder(const AliMUONTriggerGeometryBuilder& rhs)
61   : AliMUONVGeometryBuilder(rhs)
62 {
63 // Protected copy constructor
64
65   AliFatal("Copy constructor is not implemented.");
66 }
67
68 //______________________________________________________________________________
69 AliMUONTriggerGeometryBuilder::~AliMUONTriggerGeometryBuilder() {
70 //
71 }
72
73 //______________________________________________________________________________
74 AliMUONTriggerGeometryBuilder& 
75 AliMUONTriggerGeometryBuilder::operator = (const AliMUONTriggerGeometryBuilder& rhs) 
76 {
77 // Protected assignement operator
78
79   // check assignement to self
80   if (this == &rhs) return *this;
81
82   AliFatal("Assignment operator is not implemented.");
83     
84   return *this;  
85 }
86
87 //
88 // public methods
89 //
90
91 //______________________________________________________________________________
92 void AliMUONTriggerGeometryBuilder::CreateGeometry()
93 {
94 // From AliMUONv1::CreateGeometry()
95
96     /* 
97        zpos1 and zpos2 are the middle of the first and second
98        planes of station 1 (+1m for second station):
99        zpos1=(zpos1m+zpos1p)/2=(15999+16071)/2=16035 mm, thick/2=40 mm
100        zpos2=(zpos2m+zpos2p)/2=(16169+16241)/2=16205 mm, thick/2=40 mm
101        zposxm and zposxp= middles of gaz gaps within a detection plane
102        rem: the total thickness accounts for 1 mm of al on both
103        side of the RPCs (see zpos1 and zpos2)
104     */
105     
106     Int_t *idtmed = fMUON->GetIdtmed()->GetArray()-1099;
107     Int_t idAir= idtmed[1100]; // medium 1
108     Int_t idAlu1=idtmed[1103]; // medium 4
109     Int_t detElemId=0;          // Detection Element Number    
110     Float_t tpar[3];
111     Double_t dpar[3];    
112     
113 // vertical gap between right and left chambers (kDXZERO*2=4cm)
114     const Float_t kDXZERO=2.; 
115 // main distances for chamber definition in first plane/first station
116     const Float_t kXMIN=34.;       
117     const Float_t kXMED=51.;                                
118     const Float_t kXMAX=255.; 
119 // 090704 kXMAX changed from 272 to 255.
120 // (see fig.2-4 & 2-5 of Local Trigger Board PRR)
121 // segmentation updated accordingly
122     const Float_t kYMIN=34.;                              
123     const Float_t kYMAX=51.;                              
124 // inner/outer radius of flange between beam shield. and chambers (1/station)
125 //    const Float_t kRMIN[2]={50.,50.};
126 //    const Float_t kRMAX[2]={64.,68.};
127 // z position of the middle of the gas gap in mother vol 
128     const Float_t kZm=-3.6;
129     const Float_t kZp=+3.6;
130     
131     Float_t zpos1= AliMUONConstants::DefaultChamberZ(10); 
132     Double_t dstation =  ( ( - AliMUONConstants::DefaultChamberZ(11)) - 
133                            ( - AliMUONConstants::DefaultChamberZ(10)) ) /2.1;
134     Float_t par[3];
135     par[2] = dstation;
136
137 // ratio of zpos1m/zpos1p and inverse for first plane
138     Float_t zmp=(zpos1-3.6)/(zpos1+3.6);
139     Float_t zpm=1./zmp;
140     
141     Int_t icount=0;  // chamber counter (0 1 2 3)
142     
143     for (Int_t istation=0; istation<2; istation++) { // loop on stations
144         for (Int_t iplane=0; iplane<2; iplane++) { // loop on detection planes
145             
146             Int_t iVolNum=1; // counter Volume Number
147             icount = Int_t(iplane<<0)+Int_t(istation<<1);
148             
149             par[0] = AliMUONConstants::Rmin(5+istation); 
150             par[1] = AliMUONConstants::Rmax(5+istation);
151             Char_t volName[6];
152             sprintf(volName,"%s%d", "SC",11+icount);
153             gMC->Gsvolu(volName,"TUBE", idAir, par, 3);
154             //SetVolume(10+icount, volName);
155 //          Float_t zpos =  AliMUONConstants::DefaultChamberZ(10+icount);
156
157 /* removed 03/18/05
158 // Flange between beam shielding and RPC 
159             tpar[0]= kRMIN[istation];
160             tpar[1]= kRMAX[istation];
161             tpar[2]= 4.0;           
162             char volFlange[5];
163             sprintf(volFlange,"SF%dA",icount+1);         
164             gMC->Gsvolu(volFlange,"TUBE",idAlu1,tpar,3);     // Al
165             // changed by ivana
166             //gMC->Gspos(volFlange,1,"ALIC",0.,0.,zpos,0,"MANY");
167             iChamber->GetGeometry()->GetEnvelopeStore()
168               ->AddEnvelope(volFlange, 0, false, "MANY");
169 */
170             
171 // scaling factor
172 //          Float_t zRatio = zpos / zpos1;
173             Float_t zRatio = AliMUONConstants::DefaultRatioTriggerChamber(icount);                  
174
175
176
177     
178 // envelopes (same size except line 5, all virtual)
179             char volEnv[18][5];
180             tpar[1] = kYMIN * zRatio; 
181             tpar[2] = 0.4;
182             Int_t i=0;    // counter
183             for (Int_t icolumn=0; icolumn<2; icolumn++) {
184                 for (Int_t iline=1; iline<10; iline++){
185                     tpar[0] = (kXMAX/2.) * zRatio;
186                     if (iline==5) tpar[0] = ((kXMAX-kXMED)/2.)*zRatio;
187                     if (icolumn==0) 
188                         sprintf(volEnv[i],"S%dR%d",icount,iline);
189                     else
190                         sprintf(volEnv[i],"S%dL%d",icount,iline);
191                     // gMC->Gsvolu(volEnv[i],"BOX",idAir,tpar,0); 
192                     i++;
193                 }
194             }
195
196 // chamber prototype
197             tpar[0]= 0.;
198             tpar[1]= 0.;
199             tpar[2]= 0.;            char volAlu[5];     // Alu 
200             char volBak[5];     // Bakelite
201             char volGaz[5];     // Gas streamer     
202             sprintf(volAlu,"SC%dA",icount+1);
203             sprintf(volBak,"SB%dA",icount+1);
204             sprintf(volGaz,"S%dG",icount+11);
205             gMC->Gsvolu(volAlu,"BOX",idAlu1,tpar,0);         // Al
206             gMC->Gsvolu(volBak,"BOX",idtmed[1107],tpar,0);   // Bakelite
207             gMC->Gsvolu(volGaz,"BOX",idtmed[1106],tpar,0);   // Gas streamer
208             tpar[0] = -1.;
209             tpar[1] = -1.;
210             tpar[2] = 0.1;    
211             gMC->Gsposp(volGaz,1,volBak,0.,0.,0.,0,"ONLY",tpar,3);
212             tpar[2] = 0.3;
213             gMC->Gsposp(volBak,1,volAlu,0.,0.,0.,0,"ONLY",tpar,3);
214
215 // chamber type A
216             Float_t xEnv = (kDXZERO+kXMED+(kXMAX-kXMED)/2.)*zRatio;
217             Float_t yEnvM = 0.;  // y low position of envelope in chamber
218             Float_t yEnvP = 0.;  // y up position of envelope in chamber
219             Float_t yEnvPsave = 0.; // tmp data
220             Float_t yEnvMsave = 0.; // tmp data
221             Float_t xpos = 0.; // x position of RPC in envelope     
222             Float_t ypos = 0.; // y position of RPC in envelope
223             dpar[2] = 0.4;          
224             dpar[0] = ((kXMAX-kXMED)/2.)*zRatio;
225             dpar[1] = kYMIN * zRatio;
226
227             detElemId = (10+icount+1)*100;
228             GetEnvelopes(10+icount)->AddEnvelope(volEnv[4], detElemId, true, TGeoTranslation(xEnv,yEnvP,kZp));
229             detElemId = (10+icount+1)*100+9;
230             GetEnvelopes(10+icount)->AddEnvelope(volEnv[13], detElemId, true, TGeoTranslation(-xEnv,yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
231
232             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[4],iVolNum++,3, dpar);
233             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[13],iVolNum++,3, dpar);      
234
235 // chamber type B (plus envelope chambers B & C)   
236             xEnv = (kDXZERO+kXMAX/2.)*zRatio;
237             yEnvPsave = yEnvP;
238             yEnvMsave = yEnvM;
239             yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
240             yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
241             dpar[0] = ((kXMAX-kXMIN)/2.) * zRatio;
242             dpar[1] = ((kYMAX-kYMIN)/2.) * zRatio;
243             xpos = kXMIN/2. * zRatio;
244             ypos = (kYMIN - kYMIN/4.) * zRatio;
245
246             detElemId = (10+icount+1)*100+17;
247             GetEnvelopes(10+icount)->AddEnvelope(volEnv[3], detElemId, true, TGeoTranslation( xEnv,-yEnvM,kZm));            
248             detElemId = (10+icount+1)*100+1;
249             GetEnvelopes(10+icount)->AddEnvelope(volEnv[5], detElemId, true, TGeoTranslation( xEnv, yEnvM,kZm));
250             detElemId = (10+icount+1)*100+10;
251             GetEnvelopes(10+icount)->AddEnvelope(volEnv[12], detElemId, true, TGeoTranslation(-xEnv,-yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
252             detElemId = (10+icount+1)*100+8;
253             GetEnvelopes(10+icount)->AddEnvelope(volEnv[14], detElemId, true, TGeoTranslation(-xEnv, yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
254
255             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[3],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
256             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[5],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
257             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[12],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
258             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[14],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
259
260 // chamber type C (note: same Z than type B)
261             dpar[0] = (kXMAX/2)*zRatio;
262             dpar[1] = (kYMAX/2)*zRatio;
263             xpos = 0.;      
264             ypos = ((kYMAX - kYMIN)/2.) * zRatio;
265
266             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[3],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
267             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[5],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
268             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[12],iVolNum++,TGeoTranslation(xpos,-ypos,0.),3,dpar);
269             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[14],iVolNum++,TGeoTranslation(xpos, ypos,0.),3,dpar);
270
271 // chamber type D, E and F (same size)
272 // D        
273             yEnvPsave = yEnvP;
274             yEnvMsave = yEnvM;
275             yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
276             yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
277             dpar[0] = (kXMAX/2.)*zRatio;
278             dpar[1] =  kYMIN*zRatio;
279
280             detElemId = (10+icount+1)*100+16;
281             GetEnvelopes(10+icount)->AddEnvelope(volEnv[2], detElemId, true, TGeoTranslation(xEnv,-yEnvP,kZp));
282             detElemId = (10+icount+1)*100+2;
283             GetEnvelopes(10+icount)->AddEnvelope(volEnv[6], detElemId, true, TGeoTranslation(xEnv, yEnvP,kZp));
284             detElemId = (10+icount+1)*100+11;
285             GetEnvelopes(10+icount)->AddEnvelope(volEnv[11], detElemId, true, TGeoTranslation(-xEnv,-yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
286             detElemId = (10+icount+1)*100+7;
287             GetEnvelopes(10+icount)->AddEnvelope(volEnv[15], detElemId, true, TGeoTranslation(-xEnv, yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
288
289             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[2],iVolNum++,3, dpar);
290             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[6],iVolNum++,3, dpar);
291             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[11],iVolNum++,3, dpar);
292             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[15],iVolNum++,3, dpar);
293
294 // E
295             yEnvPsave = yEnvP;
296             yEnvMsave = yEnvM;
297             yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
298             yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
299
300             detElemId = (10+icount+1)*100+15;
301             GetEnvelopes(10+icount)->AddEnvelope(volEnv[1], detElemId, true, TGeoTranslation(xEnv,-yEnvM,kZm));
302             detElemId = (10+icount+1)*100+3;
303             GetEnvelopes(10+icount)->AddEnvelope(volEnv[7], detElemId, true, TGeoTranslation(xEnv, yEnvM,kZm));
304             detElemId = (10+icount+1)*100+12;
305             GetEnvelopes(10+icount)->AddEnvelope(volEnv[10], detElemId, true, TGeoTranslation(-xEnv,-yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
306             detElemId = (10+icount+1)*100+6;
307             GetEnvelopes(10+icount)->AddEnvelope(volEnv[16], detElemId, true, TGeoTranslation(-xEnv, yEnvP,kZp),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
308
309             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[1],iVolNum++,3,dpar);
310             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[7],iVolNum++,3,dpar);
311             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[10],iVolNum++,3,dpar);
312             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[16],iVolNum++,3,dpar);
313
314
315 // F
316             yEnvPsave = yEnvP;
317             yEnvMsave = yEnvM;
318             yEnvP = (yEnvMsave + kYMIN * zRatio ) * zpm + kYMIN * zRatio;
319             yEnvM = (yEnvPsave + kYMIN * zRatio ) * zmp + kYMIN * zRatio;
320
321             detElemId = (10+icount+1)*100+14;
322             GetEnvelopes(10+icount)->AddEnvelope(volEnv[0], detElemId, true, TGeoTranslation(xEnv,-yEnvP,kZp));
323             detElemId = (10+icount+1)*100+4;
324             GetEnvelopes(10+icount)->AddEnvelope(volEnv[8], detElemId, true, TGeoTranslation(xEnv, yEnvP,kZp));
325             detElemId = (10+icount+1)*100+13;
326             GetEnvelopes(10+icount)->AddEnvelope(volEnv[9], detElemId, true, TGeoTranslation(-xEnv,-yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
327             detElemId = (10+icount+1)*100+5;
328             GetEnvelopes(10+icount)->AddEnvelope(volEnv[17], detElemId, true, TGeoTranslation(-xEnv, yEnvM,kZm),TGeoRotation("rot1",90.,180.,90.,90.,180.,0.));
329             
330             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[0],iVolNum++,3,dpar);
331             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[8],iVolNum++,3,dpar);
332             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[9],iVolNum++,3,dpar);
333             GetEnvelopes(10+icount)->AddEnvelopeConstituentParam(volAlu,volEnv[17],iVolNum++,3,dpar);
334
335         } // end loop on detection planes
336     } // end loop on stations    
337 }
338
339 //______________________________________________________________________________
340 void AliMUONTriggerGeometryBuilder::SetTransformations() 
341 {
342 // Defines the transformations for the trigger chambers.
343 // ---
344
345     if (gAlice->GetModule("SHIL")) {
346       SetMotherVolume(10, "YOUT2");
347       SetMotherVolume(11, "YOUT2");
348       SetMotherVolume(12, "YOUT2");
349       SetMotherVolume(13, "YOUT2");
350     }  
351
352     SetVolume(10, "SC11");
353     SetVolume(11, "SC12");
354     SetVolume(12, "SC13");
355     SetVolume(13, "SC14");
356
357     Double_t zpos1= AliMUONConstants::DefaultChamberZ(10); 
358     SetTranslation(10, TGeoTranslation(0., 0., zpos1));
359     
360     zpos1= AliMUONConstants::DefaultChamberZ(11); 
361     SetTranslation(11, TGeoTranslation(0., 0., zpos1));
362
363     zpos1= AliMUONConstants::DefaultChamberZ(12); 
364     SetTranslation(12, TGeoTranslation(0., 0., zpos1));
365
366     zpos1= AliMUONConstants::DefaultChamberZ(13); 
367     SetTranslation(13, TGeoTranslation(0., 0., zpos1));
368 }
369
370 //______________________________________________________________________________
371 void AliMUONTriggerGeometryBuilder::SetSensitiveVolumes()
372 {
373 // Defines the sensitive volumes for trigger station chambers.
374 // ---
375
376   GetGeometry(10)->SetSensitiveVolume("S11G");
377   GetGeometry(11)->SetSensitiveVolume("S12G");
378   GetGeometry(12)->SetSensitiveVolume("S13G");
379   GetGeometry(13)->SetSensitiveVolume("S14G");
380 }
381