Make also lib directory if missing when making libraries
[u/mrichter/AliRoot.git] / ITS / AliITSv0.cxx
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4c039060 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/*
17$Log$
593d2ea1 18Revision 1.7 1999/09/29 09:24:20 fca
19Introduction of the Copyright and cvs Log
20
4c039060 21*/
22
fe4da5cc 23///////////////////////////////////////////////////////////////////////////////
24// //
25// Inner Traking System version 0 //
26// //
27//Begin_Html
28/*
1439f98e 29<img src="picts/AliITSv0Class.gif">
fe4da5cc 30</pre>
31<br clear=left>
32<font size=+2 color=red>
33<p>The responsible person for this module is
34<a href="mailto:roberto.barbera@ct.infn.it">Roberto Barbera</a>.
35</font>
36<pre>
37*/
38//End_Html
39// //
40///////////////////////////////////////////////////////////////////////////////
41
42#include <TMath.h>
43#include <TRandom.h>
44#include <TVector.h>
45#include "AliITSv0.h"
46#include "AliRun.h"
47
48#include "AliMC.h"
49#include "AliConst.h"
50
51ClassImp(AliITSv0)
52
53//_____________________________________________________________________________
593d2ea1 54AliITSv0::AliITSv0()
fe4da5cc 55{
56 //
57 // Default constructor for ITS
58 //
59}
60
61//_____________________________________________________________________________
62AliITSv0::AliITSv0(const char *name, const char *title)
63 : AliITS(name, title)
64{
65 //
66 // Standard constructor for ITS
67 //
68}
69
70//_____________________________________________________________________________
71void AliITSv0::CreateGeometry()
72{
73 //
74 // Create Geometry for ITS version 0
75 //
76 //Begin_Html
77 /*
1439f98e 78 <img src="picts/AliITSv0Tree.gif">
fe4da5cc 79 */
80 //End_Html
81 //Begin_Html
82 /*
1439f98e 83 <img src="picts/AliITSv0.gif">
fe4da5cc 84 */
85 //End_Html
86
fe4da5cc 87
88 Float_t rl[6] = { 3.9,7.6,14.,24.,40.,45. }; //SILICON LAYERS INNER RADIUS
89 Float_t drl[6] = { .755,.755,.809,.809,.7,.7 }; //THICKNESS OF LAYERS (in % radiation length)
90 Float_t dzl[6] = { 12.67,16.91,20.85,29.15,45.11,50.975 }; //HALF LENGTH OF LAYERS
91 Float_t drpcb[6] = { 0.,0.,.06,.06,0.,0. }; //PCB THICKNESS
92 Float_t drcu[6] = { 0.,0.,.0504,.0504,.0357,.0357 }; //COPPER THICKNESS
93 Float_t drsi[6] = { 0.,0.,.006,.006,.3571,.3571 }; //SILICON THICKNESS
94 Float_t drcer[6] = { 0.,0.,.08,.08,0.,0. }; //CERAMICS THICKNESS
95 Float_t drepx[6] = { 0.,0.,0.,0.,.5357,.5357 }; //EPOXY THICKNESS
96 Float_t drpla[6] = { 0.,0.,0.,0.,.1786,.1786 }; //PLASTIC THICKNESS
97 Float_t dzb[6] = { 0.,0.,15.,15.,4.,4. }; //LENGTH OF BOXES
98 Float_t dphi[6] = { 72.,72.,72.,72.,50.6,45. }; //COVERED PHI-RANGE FOR LAYERS 1-6
99
100 Float_t drca;
101 //Float_t dzfc, dwat;
102 Int_t i, nsec;
103 Float_t rend, drca_tpc, dzco, zend, dits[3], rlim, drsu, zmax;
104 Float_t zpos, dzco1, dzco2;
105 Float_t drcac[6], acone, dphii;
106 Float_t pcits[15], xltpc;
107 Float_t rstep, r0, z0, acable, fp, dz, zi, ri;
108 Int_t idrotm[399];
109 Float_t rzcone;
110 Float_t dgh[15];
111
ad51aeb0 112 Int_t *idtmed = fIdtmed->GetArray()-199;
fe4da5cc 113
114 // CONVERT INTO CM (RL(SI)=9.36 CM)
115 for (i = 0; i < 6; ++i) {
116 drl[i] = drl[i]/100. * 9.36;
117 }
118
119 // SUPPORT ENDPLANE THICKNESS
120 drsu = 2.*0.06 + 1./20; // 1./20. is 1 cm of honeycomb (1/20 carbon density)
121
122 // CABLE THICKNESS (HORIZONTAL CABLES CONNECTING THE LAYERS)
123 drca = .2;
124
125 // WATER THICKNESS
126
127 //dwat = .1;
128
129 // CONE BELOW TPC
130
131 drca_tpc = 1.2/4.;
132
133 // CABLE THICKNESS (CONICAL CABLES CONNECTING THE LAYERS)
134
135
136 // ITS CONE ANGLE
137
138 acone = 45.;
139 acone *= kDegrad;
140
141 // CONE RADIUS AT 1ST LAYER
142
143 rzcone = 30.;
144
145 // FIELD CAGE HALF LENGTH
146
147 //dzfc = 64.5;
148 rlim = 48.;
149 zmax = 80.;
150 xltpc = 275.;
151
152
153 // PARAMETERS FOR SMALL (1/2) ITS
154
155 // DO I=1,6
156 // DZL(I)=DZL(I)/2.
157 // DZB(I)=DZB(I)/2.
158 // ENDDO
159 // DRCA=DRCA/2.
160 // ACONE=ACONE/2.
161 // DRCA_TPC=DRCA_TPC/2.
162 // RZCONE=RZCONE/2.
163 // DZFC=DZFC/2.
164 // ZMAX=ZMAX/2.
165 // XLTPC=XLTPC/2.
166 acable = 8.5;
167
168 // EQUAL DISTRIBUTION INTO THE 6 LAYERS
169 rstep = drca_tpc / 6.;
170 for (i = 0; i < 6; ++i) {
171 drcac[i] = (i+1) * rstep;
172 }
173
174 // NUMBER OF PHI SECTORS
175
176 nsec = 5;
177
178 // NOW PACK USING THICKNESS
179
180 for (i = 0; i < 6; ++i) {
181
182 // PACKING FACTOR
183 fp = rl[5] / rl[i];
184
185 // PHI-PACKING NOT SUFFICIENT ?
186
187 if (dphi[i]/45 < fp) {
188 drcac[i] = drcac[i]*fp*45/dphi[i];
189 }
190 }
191
192
193 // --- Define ghost volume containing the six layers and fill it with air
194
195 dgh[0] = 3.5;
196 dgh[1] = 50.;
197 dgh[2] = zmax;
cfce8870 198 gMC->Gsvolu("ITSV", "TUBE", idtmed[275], dgh, 3);
fe4da5cc 199
200 // --- Place the ghost volume in its mother volume (ALIC) and make it
201 // invisible
202
cfce8870 203 gMC->Gspos("ITSV", 1, "ALIC", 0., 0., 0., 0, "ONLY");
204 gMC->Gsatt("ITSV", "SEEN", 0);
fe4da5cc 205
206 // ITS LAYERS (SILICON)
207
208 dits[0] = rl[0];
209 dits[1] = rl[0] + drl[0];
210 dits[2] = dzl[0];
cfce8870 211 gMC->Gsvolu("ITS1", "TUBE", idtmed[199], dits, 3);
212 gMC->Gspos("ITS1", 1, "ITSV", 0., 0., 0., 0, "ONLY");
fe4da5cc 213
214 dits[0] = rl[1];
215 dits[1] = rl[1] + drl[1];
216 dits[2] = dzl[1];
cfce8870 217 gMC->Gsvolu("ITS2", "TUBE", idtmed[199], dits, 3);
218 gMC->Gspos("ITS2", 1, "ITSV", 0., 0., 0., 0, "ONLY");
fe4da5cc 219
220 dits[0] = rl[2];
221 dits[1] = rl[2] + drl[2];
222 dits[2] = dzl[2];
cfce8870 223 gMC->Gsvolu("ITS3", "TUBE", idtmed[224], dits, 3);
224 gMC->Gspos("ITS3", 1, "ITSV", 0., 0., 0., 0, "ONLY");
fe4da5cc 225
226 dits[0] = rl[3];
227 dits[1] = rl[3] + drl[3];
228 dits[2] = dzl[3];
cfce8870 229 gMC->Gsvolu("ITS4", "TUBE", idtmed[224], dits, 3);
230 gMC->Gspos("ITS4", 1, "ITSV", 0., 0., 0., 0, "ONLY");
fe4da5cc 231
232 dits[0] = rl[4];
233 dits[1] = rl[4] + drl[4];
234 dits[2] = dzl[4];
cfce8870 235 gMC->Gsvolu("ITS5", "TUBE", idtmed[249], dits, 3);
236 gMC->Gspos("ITS5", 1, "ITSV", 0., 0., 0., 0, "ONLY");
fe4da5cc 237
238 dits[0] = rl[5];
239 dits[1] = rl[5] + drl[5];
240 dits[2] = dzl[5];
cfce8870 241 gMC->Gsvolu("ITS6", "TUBE", idtmed[249], dits, 3);
242 gMC->Gspos("ITS6", 1, "ITSV", 0., 0., 0., 0, "ONLY");
fe4da5cc 243
244 // ELECTRONICS BOXES
245 // PCB (layer #3 and #4)
246
cfce8870 247 gMC->Gsvolu("IPCB", "TUBE", idtmed[233], dits, 0);
fe4da5cc 248 for (i = 2; i < 4; ++i) {
249 dits[0] = rl[i];
250 dits[1] = dits[0] + drpcb[i];
251 dits[2] = dzb[i] / 2.;
252 zpos = dzl[i] + dits[2];
cfce8870 253 gMC->Gsposp("IPCB", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
254 gMC->Gsposp("IPCB", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 255 }
256
257 // COPPER (layer #3 and #4)
258
cfce8870 259 gMC->Gsvolu("ICO2", "TUBE", idtmed[234], dits, 0);
fe4da5cc 260 for (i = 2; i < 4; ++i) {
261 dits[0] = rl[i] + drpcb[i];
262 dits[1] = dits[0] + drcu[i];
263 dits[2] = dzb[i] / 2.;
264 zpos = dzl[i] + dits[2];
cfce8870 265 gMC->Gsposp("ICO2", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
266 gMC->Gsposp("ICO2", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 267 }
268
269 // CERAMICS (layer #3 and #4)
270
cfce8870 271 gMC->Gsvolu("ICER", "TUBE", idtmed[235], dits, 0);
fe4da5cc 272 for (i = 2; i < 4; ++i) {
273 dits[0] = rl[i] + drpcb[i] + drcu[i];
274 dits[1] = dits[0] + drcer[i];
275 dits[2] = dzb[i] / 2.;
276 zpos = dzl[i] + dits[2];
cfce8870 277 gMC->Gsposp("ICER", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
278 gMC->Gsposp("ICER", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 279 }
280
281 // SILICON (layer #3 and #4)
282
cfce8870 283 gMC->Gsvolu("ISI2", "TUBE", idtmed[226], dits, 0);
fe4da5cc 284 for (i = 2; i < 4; ++i) {
285 dits[0] = rl[i] + drpcb[i] + drcu[i] + drcer[i];
286 dits[1] = dits[0] + drsi[i];
287 dits[2] = dzb[i] / 2.;
288 zpos = dzl[i - 1] + dits[2];
cfce8870 289 gMC->Gsposp("ISI2", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
290 gMC->Gsposp("ISI2", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 291 }
292
293 // PLASTIC (G10FR4) (layer #5 and #6)
294
cfce8870 295 gMC->Gsvolu("IPLA", "TUBE", idtmed[262], dits, 0);
fe4da5cc 296 for (i = 4; i < 6; ++i) {
297 dits[0] = rl[i];
298 dits[1] = dits[0] + drpla[i];
299 dits[2] = dzb[i] / 2.;
300 zpos = dzl[i] + dits[2];
cfce8870 301 gMC->Gsposp("IPLA", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
302 gMC->Gsposp("IPLA", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 303 }
304
305 // COPPER (layer #5 and #6)
306
cfce8870 307 gMC->Gsvolu("ICO3", "TUBE", idtmed[259], dits, 0);
fe4da5cc 308 for (i = 4; i < 6; ++i) {
309 dits[0] = rl[i] + drpla[i];
310 dits[1] = dits[0] + drcu[i];
311 dits[2] = dzb[i] / 2.;
312 zpos = dzl[i] + dits[2];
cfce8870 313 gMC->Gsposp("ICO3", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
314 gMC->Gsposp("ICO3", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 315 }
316
317 // EPOXY (layer #5 and #6)
318
cfce8870 319 gMC->Gsvolu("IEPX", "TUBE", idtmed[262], dits, 0);
fe4da5cc 320 for (i = 4; i < 6; ++i) {
321 dits[0] = rl[i] + drpla[i] + drcu[i];
322 dits[1] = dits[0] + drepx[i];
323 dits[2] = dzb[i] / 2.;
324 zpos = dzl[i] + dits[2];
cfce8870 325 gMC->Gsposp("IEPX", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
326 gMC->Gsposp("IEPX", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 327 }
328
329 // SILICON (layer #5 and #6)
330
cfce8870 331 gMC->Gsvolu("ISI3", "TUBE", idtmed[251], dits, 0);
fe4da5cc 332 for (i = 4; i < 6; ++i) {
333 dits[0] = rl[i] + drpla[i] + drcu[i] + drepx[i];
334 dits[1] = dits[0] + drsi[i];
335 dits[2] = dzb[i] / 2.;
336 zpos = dzl[i] + dits[2];
cfce8870 337 gMC->Gsposp("ISI3", i-1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
338 gMC->Gsposp("ISI3", i+1, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 339 }
340
341 // SUPPORT
342
cfce8870 343 gMC->Gsvolu("ISUP", "TUBE", idtmed[274], dits, 0);
fe4da5cc 344 for (i = 0; i < 6; ++i) {
345 dits[0] = rl[i];
346 if (i < 5) dits[1] = rl[i+1];
347 else dits[1] = rlim;
348 dits[2] = drsu / 2.;
349 zpos = dzl[i] + dzb[i] + dits[2];
cfce8870 350 gMC->Gsposp("ISUP", i+1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
351 gMC->Gsposp("ISUP", i+7, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 352 }
353
354 // CABLES (HORIZONTAL)
355
cfce8870 356 gMC->Gsvolu("ICHO", "TUBE", idtmed[278], dits, 0);
fe4da5cc 357 for (i = 0; i < 6; ++i) {
358 dits[0] = rl[i];
359 dits[1] = dits[0] + drca;
360 dits[2] = (rzcone + TMath::Tan(acone) * (rl[i] - rl[0]) - (dzl[i]+ dzb[i] + drsu)) / 2.;
361 zpos = dzl[i] + dzb[i] + drsu + dits[2];
cfce8870 362 gMC->Gsposp("ICHO", i+1, "ITSV", 0., 0., zpos, 0, "ONLY", dits, 3);
363 gMC->Gsposp("ICHO", i+7, "ITSV", 0., 0.,-zpos, 0, "ONLY", dits, 3);
fe4da5cc 364 }
365 // DEFINE A CONICAL GHOST VOLUME FOR THE PHI SEGMENTATION
366 pcits[0] = 0.;
367 pcits[1] = 360.;
368 pcits[2] = 2.;
369 pcits[3] = rzcone;
370 pcits[4] = 3.5;
371 pcits[5] = rl[0];
372 pcits[6] = pcits[3] + TMath::Tan(acone) * (rlim - rl[0]);
373 pcits[7] = rlim - rl[0] + 3.5;
374 pcits[8] = rlim;
cfce8870 375 gMC->Gsvolu("ICMO", "PCON", idtmed[275], pcits, 9);
fe4da5cc 376 AliMatrix(idrotm[200], 90., 0., 90., 90., 180., 0.);
cfce8870 377 gMC->Gspos("ICMO", 1, "ITSV", 0., 0., 0., 0, "ONLY");
378 gMC->Gspos("ICMO", 2, "ITSV", 0., 0., 0., idrotm[200], "ONLY");
fe4da5cc 379
380 // DIVIDE INTO NSEC PHI-SECTIONS
381
cfce8870 382 gMC->Gsdvn("ICMD", "ICMO", nsec, 2);
383 gMC->Gsatt("ICMO", "SEEN", 0);
384 gMC->Gsatt("ICMD", "SEEN", 0);
fe4da5cc 385
386 // CONICAL CABLES
387
388 pcits[2] = 2.;
cfce8870 389 gMC->Gsvolu("ICCO", "PCON", idtmed[278], pcits, 0);
fe4da5cc 390 for (i = 1; i < 6; ++i) {
391 pcits[0] = -dphi[i] / 2.;
392 pcits[1] = dphi[i];
393 if (i < 5) {
394 dzco = TMath::Tan(acone) * (rl[i] - rl[i-1]);
395 } else {
396 dzco1 = zmax - (rzcone + TMath::Tan(acone) * (rl[5] - rl[0])) -2.;
397 dzco2 = (rlim - rl[5]) * TMath::Tan(acone);
398 if (rl[5] + dzco1 / TMath::Tan(acone) < rlim) {
399 dzco = dzco1;
400 } else {
401 dzco = dzco2;
402 }
403 }
404 pcits[3] = rzcone + TMath::Tan(acone) * (rl[i] - rl[0]);
405 pcits[4] = rl[i] - drcac[i] / TMath::Sin(acone);
406 pcits[5] = rl[i];
407 pcits[6] = pcits[3] + dzco;
408 pcits[7] = rl[i] + dzco / TMath::Tan(acone) - drcac[i] / TMath::Sin(acone);
409 pcits[8] = rl[i] + dzco / TMath::Tan(acone);
410
cfce8870 411 gMC->Gsposp("ICCO", i, "ICMD", 0., 0., 0., 0, "ONLY", pcits, 9);
fe4da5cc 412
413 }
414 zend = pcits[6];
415 rend = pcits[8];
416
417 // CONICAL CABLES BELOW TPC
418
419 // DEFINE A CONICAL GHOST VOLUME FOR THE PHI SEGMENTATION
420 pcits[0] = 0.;
421 pcits[1] = 360.;
422 pcits[2] = 2.;
423 pcits[3] = zend;
424 pcits[5] = rend;
425 pcits[4] = pcits[5] - drca_tpc;
426 pcits[6] = xltpc;
427 pcits[8] = pcits[4] + (pcits[6] - pcits[3]) * TMath::Tan(acable * kDegrad);
428 pcits[7] = pcits[8] - drca_tpc;
429 AliMatrix(idrotm[200], 90., 0., 90., 90., 180., 0.);
cfce8870 430 gMC->Gsvolu("ICCM", "PCON", idtmed[275], pcits, 9);
431 gMC->Gspos("ICCM", 1, "ALIC", 0., 0., 0., 0, "ONLY");
432 gMC->Gspos("ICCM", 2, "ALIC", 0., 0., 0., idrotm[200], "ONLY");
433 gMC->Gsdvn("ITMD", "ICCM", nsec, 2);
434 gMC->Gsatt("ITMD", "SEEN", 0);
435 gMC->Gsatt("ICCM", "SEEN", 0);
fe4da5cc 436
437 // NOW PLACE SEGMENTS WITH DECREASING PHI SEGMENTS INTO THE
438 // GHOST-VOLUME
439
440 pcits[2] = 2.;
cfce8870 441 gMC->Gsvolu("ITTT", "PCON", idtmed[278], pcits, 0);
fe4da5cc 442 r0 = rend;
443 z0 = zend;
444 dz = (xltpc - zend) / 9.;
445 for (i = 0; i < 9; ++i) {
446 zi = z0 + i* dz + dz / 2.;
447 ri = r0 + (zi - z0) * TMath::Tan(acable * kDegrad);
448 dphii = dphi[5] * r0 / ri;
449 pcits[0] = -dphii / 2.;
450 pcits[1] = dphii;
451 pcits[3] = zi - dz / 2.;
452 pcits[5] = r0 + (pcits[3] - z0) * TMath::Tan(acable * kDegrad);
453 pcits[4] = pcits[5] - drca_tpc;
454 pcits[6] = zi + dz / 2.;
455 pcits[8] = r0 + (pcits[6] - z0) * TMath::Tan(acable * kDegrad);
456 pcits[7] = pcits[8] - drca_tpc;
457
cfce8870 458 gMC->Gsposp("ITTT", i+1, "ITMD", 0., 0., 0., 0, "ONLY", pcits, 9);
fe4da5cc 459 }
460
461 // --- Outputs the geometry tree in the EUCLID/CAD format
462
463 if (fEuclidOut) {
cfce8870 464 gMC->WriteEuclid("ITSgeometry", "ITSV", 1, 5);
fe4da5cc 465 }
466}
467
468//_____________________________________________________________________________
2cb30c3a 469void AliITSv0::DrawModule()
fe4da5cc 470{
471 //
472 // Draw a shaded view of the FMD version 1
473 //
474
fe4da5cc 475
476 // Set everything unseen
cfce8870 477 gMC->Gsatt("*", "seen", -1);
fe4da5cc 478 //
479 // Set ALIC mother visible
cfce8870 480 gMC->Gsatt("ALIC","SEEN",0);
fe4da5cc 481 //
482 // Set the volumes visible
cfce8870 483 gMC->Gsatt("ITSV","SEEN",0);
484 gMC->Gsatt("ITS1","SEEN",1);
485 gMC->Gsatt("ITS2","SEEN",1);
486 gMC->Gsatt("ITS3","SEEN",1);
487 gMC->Gsatt("ITS4","SEEN",1);
488 gMC->Gsatt("ITS5","SEEN",1);
489 gMC->Gsatt("ITS6","SEEN",1);
490 gMC->Gsatt("ISI2","SEEN",1);
491 gMC->Gsatt("IPLA","SEEN",1);
492 gMC->Gsatt("ICHO","SEEN",1);
493 gMC->Gsatt("ICMO","SEEN",0);
494 gMC->Gsatt("ICMD","SEEN",0);
495 gMC->Gsatt("ICCO","SEEN",1);
496 gMC->Gsatt("ICCM","SEEN",0);
497 gMC->Gsatt("ITMD","SEEN",0);
498 gMC->Gsatt("ITTT","SEEN",1);
fe4da5cc 499 //
cfce8870 500 gMC->Gdopt("hide", "on");
501 gMC->Gdopt("shad", "on");
502 gMC->Gsatt("*", "fill", 7);
503 gMC->SetClipBox(".");
504 gMC->SetClipBox("*", 0, 300, -300, 300, -300, 300);
505 gMC->DefaultRange();
506 gMC->Gdraw("alic", 40, 30, 0, 11, 10, .05, .05);
507 gMC->Gdhead(1111, "Inner Tracking System Version 0");
508 gMC->Gdman(16, 6, "MAN");
fe4da5cc 509}
510
511//_____________________________________________________________________________
512void AliITSv0::StepManager()
513{
514 //
515 // Called at every step in the ITS
516 //
517 Int_t copy, id;
518 Float_t hits[7];
519 Int_t vol[3];
0a6d8768 520 TLorentzVector position;
521 TLorentzVector momentum;
fe4da5cc 522 TClonesArray &lhits = *fHits;
fe4da5cc 523 //
cfce8870 524 if(gMC->TrackCharge() && gMC->Edep()) {
fe4da5cc 525 //
526 // Only entering charged tracks
0a6d8768 527 if((id=gMC->CurrentVolID(copy))==fIdSens1) {
fe4da5cc 528 vol[0]=1;
0a6d8768 529 id=gMC->CurrentVolOffID(1,copy);
fe4da5cc 530 vol[1]=copy;
0a6d8768 531 id=gMC->CurrentVolOffID(2,copy);
fe4da5cc 532 vol[2]=copy;
533 } else if(id==fIdSens2) {
534 vol[0]=2;
0a6d8768 535 id=gMC->CurrentVolOffID(1,copy);
fe4da5cc 536 vol[1]=copy;
0a6d8768 537 id=gMC->CurrentVolOffID(2,copy);
fe4da5cc 538 vol[2]=copy;
539 } else if(id==fIdSens3) {
540 vol[0]=3;
541 vol[1]=copy;
0a6d8768 542 id=gMC->CurrentVolOffID(1,copy);
fe4da5cc 543 vol[2]=copy;
544 } else if(id==fIdSens4) {
545 vol[0]=4;
546 vol[1]=copy;
0a6d8768 547 id=gMC->CurrentVolOffID(1,copy);
fe4da5cc 548 vol[2]=copy;
549 } else if(id==fIdSens5) {
550 vol[0]=5;
551 vol[1]=copy;
0a6d8768 552 id=gMC->CurrentVolOffID(1,copy);
fe4da5cc 553 vol[2]=copy;
554 } else if(id==fIdSens6) {
555 vol[0]=6;
556 vol[1]=copy;
0a6d8768 557 id=gMC->CurrentVolOffID(1,copy);
fe4da5cc 558 vol[2]=copy;
559 } else return;
cfce8870 560 gMC->TrackPosition(position);
561 gMC->TrackMomentum(momentum);
fe4da5cc 562 hits[0]=position[0];
563 hits[1]=position[1];
564 hits[2]=position[2];
0a6d8768 565 hits[3]=momentum[0];
566 hits[4]=momentum[1];
567 hits[5]=momentum[2];
cfce8870 568 hits[6]=gMC->Edep();
fe4da5cc 569 new(lhits[fNhits++]) AliITShit(fIshunt,gAlice->CurrentTrack(),vol,hits);
570 }
571}