update for the NUA
[u/mrichter/AliRoot.git] / ITS / AliITSsegmentationSPD.cxx
CommitLineData
b0f5e3fc 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
2b6642a2 16/* $Id$ */
c9649d1e 17#include <TGeoManager.h>
18#include <TGeoVolume.h>
19#include <TGeoBBox.h>
b0f5e3fc 20#include "AliITSsegmentationSPD.h"
fa4f0f62 21
55d2c544 22//////////////////////////////////////////////////////
23// Segmentation class for //
24// pixels //
25// //
26//////////////////////////////////////////////////////
2b6642a2 27const Int_t AliITSsegmentationSPD::fgkNchipsPerModule = 5;
28const Int_t AliITSsegmentationSPD::fgkNcolumnsPerChip = 32;
b0f5e3fc 29ClassImp(AliITSsegmentationSPD)
30
55d2c544 31//_____________________________________________________________________________
c9649d1e 32 AliITSsegmentationSPD::AliITSsegmentationSPD(Option_t *opt): AliITSsegmentation(),
e56160b8 33fNpx(0),
34fNpz(0){
55d2c544 35 // Default constructor
c9649d1e 36
a5e51e90 37 // Initialization to default values
38 Init();
39
40 // Initialization of detector dimensions from TGeo
c9649d1e 41 if(strstr(opt,"TGeo")){
42 if(!gGeoManager){
a5e51e90 43 AliError("Geometry is not initialized\n Using hardwired default values");
c9649d1e 44 return;
45 }
46 TGeoVolume *v=NULL;
47 v = gGeoManager->GetVolume("ITSSPDlay1-sensor");
48 if(!v){
49 AliWarning("TGeo volume ITSSPDlay1-sensor not found (hint: use v11Hybrid geometry)\n Using hardwired default values");
c9649d1e 50 }
51 else {
52 TGeoBBox *s=(TGeoBBox*)v->GetShape();
53 SetDetSize(s->GetDX()*20000.,s->GetDZ()*20000.,s->GetDY()*20000.);
54 }
c9649d1e 55 }
55d2c544 56}
b0f5e3fc 57
55d2c544 58//_____________________________________________________________________________
59Float_t AliITSsegmentationSPD::ColFromZ300(Float_t z) const {
b0f5e3fc 60// Get column number for each z-coordinate taking into account the
61// extra pixels in z direction assuming 300 micron sized pixels.
62 Float_t col = 0.0;
63 Float_t pitchz = 300.0;
64 col = Float_t (z/pitchz);
65 return col;
66}
67//_____________________________________________________________________________
55d2c544 68Float_t AliITSsegmentationSPD::ZFromCol300(Int_t col) const {
b0f5e3fc 69// same comments as above
70// Get z-coordinate for each colunm number
71 Float_t pitchz = 300.0;
72 Float_t z = 0.0;
73 z = (col+0.5)*pitchz;
74 return z;
75}
76//_____________________________________________________________________________
d43bb62f 77Float_t AliITSsegmentationSPD::Zpitch300() const {
b0f5e3fc 78 // returns Z pixel pitch for 300 micron pixels.
ac74f489 79
ac74f489 80 return 300.0;
b0f5e3fc 81}
82//_____________________________________________________________________________
55d2c544 83Float_t AliITSsegmentationSPD::ColFromZ(Float_t z) const {
f1e07e4b 84 // hard-wired - keep it like this till we can parametrise
85 // and get rid of AliITSgeomSPD425
86 // Get column number for each z-coordinate taking into account the
87 // extra pixels in z direction
88 Int_t i;
89 Float_t s,col;
5d3918d6 90
f1e07e4b 91 if(z<0||z>fDz){
f6b6d58e 92 AliError(Form("z=%f outside of range 0.0<=z<fDz=%f",z,fDz));
f1e07e4b 93 return 0.0; // error
94 } // end if outsize of detector
95 s = 0.0;
96 i = -1;
e917bef4 97 do {
98 i++;
99 s += fCellSizeZ[i];
100 } while(z>s);
f1e07e4b 101 s -= fCellSizeZ[i];
102 col = (Float_t) i + (z-s)/fCellSizeZ[i];
103 return col;
104
105/*
b0f5e3fc 106 Float_t col = 0;
107 Float_t pitchz = 425;
108 if( z < 13175) {
109 col = Float_t(z/pitchz);
110 } else if( z < 14425) {
111 pitchz = 625;
112 col = 31 + (z - 13175)/pitchz;
113 } else if( z < 27175) {
114 col = 33 + (z - 14425)/pitchz;
115 } else if( z < 28425) {
116 pitchz = 625;
117 col = 63 + (z - 27175)/pitchz;
118 } else if( z < 41175) {
119 col = 65 + (z - 28425)/pitchz;
120 } else if( z < 42425) {
121 pitchz = 625;
122 col = 95 + (z - 41175)/pitchz;
123 } else if( z < 55175) {
124 col = 97 + (z - 42425)/pitchz;
125 } else if( z < 56425) {
126 pitchz = 625;
127 col = 127 + (z - 55175)/pitchz;
128 } else if( z < 69175) {
129 col = 129 + (z - 56425)/pitchz;
130 } else if( z < 70425) {
131 pitchz = 625;
132 col = 159 + (z - 69175)/pitchz;
133 } else if( z < 83600) {
134 col = 161 + (z - 70425)/pitchz;
135 }
f1e07e4b 136 return TMath::Abs(col);*/
b0f5e3fc 137}
138
139//_____________________________________________________________________________
55d2c544 140Float_t AliITSsegmentationSPD::ZFromCol(Int_t col) const {
f1e07e4b 141 // same comments as above
142 // Get z-coordinate for each colunm number
143 Int_t i;
144 Float_t z;
5d3918d6 145
f1e07e4b 146 if(col<0||col>=fNpz){
f6b6d58e 147 AliError(Form("col=%d outside of range 0<=col<fNpZ=%d",col,fNpz));
f1e07e4b 148 return 0.0; // error
149 } // end if outsize of detector
150 z = 0.0;
151 for(i=0;i<col;i++) z += fCellSizeZ[i];
152 z += 0.5*fCellSizeZ[col];
153 return z;
154
155/*
b0f5e3fc 156 Float_t pitchz = 425;
157 Float_t z = 0;
158 if( col >=0 && col <= 30 ) {
159 z = (col + 0.5)*pitchz;
160 } else if( col >= 31 && col <= 32) {
161 pitchz = 625;
162 z = 13175 + (col -31 + 0.5)*pitchz;
163 } else if( col >= 33 && col <= 62) {
164 z = 14425 + (col -33 + 0.5)*pitchz;
165 } else if( col >= 63 && col <= 64) {
166 pitchz = 625;
167 z = 27175 + (col -63 + 0.5)*pitchz;
168 } else if( col >= 65 && col <= 94) {
169 z = 28425 + (col -65 + 0.5)*pitchz;
170 } else if( col >= 95 && col <= 96) {
171 pitchz = 625;
172 z = 41175 + (col -95 + 0.5)*pitchz;
173 } else if( col >= 97 && col <= 126) {
174 z = 42425 + (col -97 + 0.5)*pitchz;
175 } else if( col >= 127 && col <= 128) {
176 pitchz = 625;
177 z = 55175 + (col -127 + 0.5)*pitchz;
178 } else if( col >= 129 && col <= 158) {
179 z = 56425 + (col -129 + 0.5)*pitchz;
180 } else if( col >= 159 && col <= 160) {
181 pitchz = 625;
182 z = 69175 + (col -159 + 0.5)*pitchz;
183 } else if( col >= 161 && col <= 191) {
184 z = 70425 + (col -161 + 0.5)*pitchz;
5752a110 185 }
b0f5e3fc 186
f1e07e4b 187 return z;*/
b0f5e3fc 188}
5752a110 189//______________________________________________________________________
55d2c544 190Float_t AliITSsegmentationSPD::ZpitchFromCol(Int_t col) const {
f1e07e4b 191 // Get pitch size in z direction for each colunm
b0f5e3fc 192
87663651 193 Float_t pitchz = 425.;
5752a110 194 if(col < 0){
195 pitchz = 0.0;
91378d45 196 } else if(col >= 31 && col <= 32) {
87663651 197 pitchz = 625.;
91378d45 198 } else if(col >= 63 && col <= 64) {
87663651 199 pitchz = 625.;
91378d45 200 } else if(col >= 95 && col <= 96) {
87663651 201 pitchz = 625.;
91378d45 202 } else if(col >= 127 && col <= 128) {
87663651 203 pitchz = 625.;
91378d45 204 } else if(col >= 159 && col <= 160) {
87663651 205 pitchz = 625.;
f1e07e4b 206 } else if(col>=192){
87663651 207 pitchz = 425.;
5752a110 208 }
209 return pitchz;
b0f5e3fc 210}
a5e51e90 211
5752a110 212//______________________________________________________________________
55d2c544 213void AliITSsegmentationSPD::Copy(TObject &obj) const {
214 // protected method. copy this to obj
215 AliITSsegmentation::Copy(obj);
216 ((AliITSsegmentationSPD& ) obj).fNpx = fNpx;
217 ((AliITSsegmentationSPD& ) obj).fNpz = fNpz;
218 Int_t i;
219 for(i=0;i<256;i++)
220 ((AliITSsegmentationSPD& ) obj).fCellSizeX[i] = fCellSizeX[i];
221 for(i=0;i<280;i++)
222 ((AliITSsegmentationSPD& ) obj).fCellSizeZ[i] = fCellSizeZ[i];
223}
224
225//______________________________________________________________________
226AliITSsegmentationSPD& AliITSsegmentationSPD::operator=(const AliITSsegmentationSPD &source){
b0f5e3fc 227 // = operator
b0f5e3fc 228 if(this==&source) return *this;
55d2c544 229 source.Copy(*this);
b0f5e3fc 230 return *this;
231}
232//____________________________________________________________________________
55d2c544 233AliITSsegmentationSPD::AliITSsegmentationSPD(const AliITSsegmentationSPD &source) :
e56160b8 234 AliITSsegmentation(source),
235fNpx(0),
236fNpz(0){
d43bb62f 237 for(Int_t i=0; i<256; i++)fCellSizeX[i]=0.;
238 for(Int_t i=0; i<280; i++)fCellSizeZ[i]=0.;
b0f5e3fc 239 // copy constructor
55d2c544 240 source.Copy(*this);
b0f5e3fc 241}
91378d45 242//----------------------------------------------------------------------
243void AliITSsegmentationSPD::SetBinSize(Float_t *x,Float_t *z){
244 // Fills the array of pixel sizes in x, microns
245 // The input array x must have 256 elements.
246 Int_t i;
247
248 for(i=0;i<256;i++) fCellSizeX[i] = x[i];
7775613f 249 for(i=0;i<280;i++) fCellSizeZ[i] = z[i];
91378d45 250 return;
251}
252//----------------------------------------------------------------------
b0f5e3fc 253void AliITSsegmentationSPD::Init300(){
254// Initialize infromation for 6 read out chip 300X50 micron pixel SPD
255// detectors. This chip is 150 microns thick by 1.28 cm in x by 8.37 cm
256// long. It has 256 50 micron pixels in x and 279 300 micron size
257// pixels in z.
258
b0f5e3fc 259 //const Float_t kconv=10000.;
e8189707 260 Int_t i;
b0f5e3fc 261 fNpx = 256; // The number of X pixel Cell same as in fCellSizeX array size
262 fNpz = 279; // The number of Z pixel Cell same as in fCellSizeZ array size
263 for(i=0;i<fNpx;i++) fCellSizeX[i] = 50.0; // microns all the same
d43bb62f 264 for(i=0;i<280;i++) fCellSizeZ[i] = Zpitch300(); // microns
f1e07e4b 265// for(i=fNpz;i<280;i++) fCellSizeZ[i] = 0.0; // zero out rest of array
b0f5e3fc 266 fDx = 0;
267 for(i=0;i<fNpx;i++) fDx += fCellSizeX[i];
268 fDz = 0;
269 for(i=0;i<fNpz;i++) fDz += fCellSizeZ[i];
270 fDy = 300.0; //microns SPD sensitive layer thickness
271}
272
273//------------------------------
274void AliITSsegmentationSPD::Init(){
2b6642a2 275// Initialize information for 5 read out chip 425X50 micron pixel SPD
276// detectors (ladder).
277// Each readout chip is 150 micron thick.
278// The ladder sensor is 200 micron thick by 1.28 cm in x by 6.96 cm in z.
279// It has 256 50 micron pixels in x and 160 mostly 425 micron pixels in z.
280// The two pixels at boundary between two adjacent readout chips are
281// 625 micron long.
b0f5e3fc 282
a5e51e90 283 Float_t bx[256],bz[280];
284 Int_t i;
285 SetNPads(256,160); // Number of Bins in x and z
286 for(i=000;i<256;i++) bx[i] = 50.0; // in x all are 50 microns.
287 for(i=000;i<160;i++) bz[i] = 425.0; // most are 425 microns except below
288 for(i=160;i<280;i++) bz[i] = 0.0; // Outside of detector.
289 bz[ 31] = bz[ 32] = 625.0; // first chip boundary
290 bz[ 63] = bz[ 64] = 625.0; // first chip boundary
291 bz[ 95] = bz[ 96] = 625.0; // first chip boundary
292 bz[127] = bz[128] = 625.0; // first chip boundary
293 bz[160] = 425.0; // Set so that there is no zero pixel size for fNz.
294 SetBinSize(bx,bz);
295 SetDetSize(12800,69600,200); // full lengths (x,z,y) in microns
b0f5e3fc 296
297}
298//------------------------------
e8189707 299void AliITSsegmentationSPD::SetNPads(Int_t p1, Int_t p2){
b0f5e3fc 300 // for SPD this function should be used ONLY when a beam test setup
301 // configuration is studied
302
303 fNpx=p1;
304 fNpz=p2;
305
306}
b0f5e3fc 307
b0f5e3fc 308//------------------------------
55d2c544 309Float_t AliITSsegmentationSPD::Dpx(Int_t i) const {
f1e07e4b 310 //returs x pixel pitch for a give pixel
311 if(i<0||i>=256) return 0.0;
312 return fCellSizeX[i];
b0f5e3fc 313}
314//------------------------------
55d2c544 315Float_t AliITSsegmentationSPD::Dpz(Int_t i) const {
f1e07e4b 316 // returns z pixel pitch for a give pixel
317 if(i<0||i>=280) return 0.0;
318 return fCellSizeZ[i];
b0f5e3fc 319}
320//------------------------------
55d2c544 321void AliITSsegmentationSPD::GetPadIxz(Float_t x,Float_t z,Int_t &ix,Int_t &iz) const {
b0f5e3fc 322// Returns pixel coordinates (ix,iz) for given real local coordinates (x,z)
323//
324
325 // expects x, z in microns
326
327 // same segmentation on x
328 Float_t dpx=Dpx(0);
329 ix = (Int_t)(x/dpx + 1);
330 // different segmentation on z
331 iz = (Int_t)(ColFromZ(z) + 1);
332
b0f5e3fc 333
334 if (iz > fNpz) iz= fNpz;
335 if (ix > fNpx) ix= fNpx;
b0f5e3fc 336 /*
337 if (iz < -fNpz) iz= -fNpz;
338 if (ix < -fNpx) ix=-fNpx;
339 */
340}
341
342//------------------------------
55d2c544 343void AliITSsegmentationSPD::GetPadTxz(Float_t &x,Float_t &z) const{
e8189707 344// local transformation of real local coordinates (x,z)
345//
346
347 // expects x, z in microns
348
349 // same segmentation on x
350 Float_t dpx=Dpx(0);
351
352 x /= dpx;
353 z = ColFromZ(z);
354
355}
356//------------------------------
55d2c544 357void AliITSsegmentationSPD::GetPadCxz(Int_t ix,Int_t iz,Float_t &x,Float_t&z) const {
b0f5e3fc 358 // Transform from pixel to real local coordinates
359
360 // returns x, z in microns
361
362 Float_t dpx=Dpx(0);
363
364 x = (ix>0) ? Float_t(ix*dpx)-dpx/2. : Float_t(ix*dpx)+dpx/2.;
365 z = ZFromCol(iz);
366
367
368}
369//------------------------------
370void AliITSsegmentationSPD::
55d2c544 371Neighbours(Int_t iX, Int_t iZ, Int_t* Nlist, Int_t Xlist[8], Int_t Zlist[8]) const {
b0f5e3fc 372 // returns the neighbouring pixels for use in Cluster Finders and the like.
373 /*
374 *Nlist=4;Xlist[0]=Xlist[1]=iX;Xlist[2]=iX-1;Xlist[3]=iX+1;
375 Zlist[0]=iZ-1;Zlist[1]=iZ+1;Zlist[2]=Zlist[3]=iZ;
376 */
377
378
379 *Nlist=8;
380 Xlist[0]=Xlist[1]=iX;
381 Xlist[2]=iX-1;
382 Xlist[3]=iX+1;
383 Zlist[0]=iZ-1;
384 Zlist[1]=iZ+1;
385 Zlist[2]=Zlist[3]=iZ;
386
387 // Diagonal elements
388 Xlist[4]=iX+1;
389 Zlist[4]=iZ+1;
390
391 Xlist[5]=iX-1;
392 Zlist[5]=iZ-1;
393
394 Xlist[6]=iX-1;
395 Zlist[6]=iZ+1;
396
397 Xlist[7]=iX+1;
398 Zlist[7]=iZ-1;
399}
5752a110 400//______________________________________________________________________
aacedc3e 401Bool_t AliITSsegmentationSPD::LocalToDet(Float_t x,Float_t z,
402 Int_t &ix,Int_t &iz) const {
403 // Transformation from Geant detector centered local coordinates (cm) to
404 // Pixel cell numbers ix and iz.
405 // Input:
406 // Float_t x detector local coordinate x in cm with respect to
407 // the center of the sensitive volume.
408 // Float_t z detector local coordinate z in cm with respect to
409 // the center of the sensitive volulme.
410 // Output:
411 // Int_t ix detector x cell coordinate. Has the range
412 // 0<=ix<fNpx.
413 // Int_t iz detector z cell coordinate. Has the range
414 // 0<=iz<fNpz.
415 // Return:
416 // kTRUE if point x,z is inside sensitive volume, kFALSE otherwise.
417 // A value of -1 for ix or iz indecates that this point is outside of the
418 // detector segmentation as defined.
5752a110 419 Int_t i,j;
420 Float_t dx,dz;
421 const Float_t kconv = 1.0E-04; // converts microns to cm.
422
423 dx = -0.5*kconv*Dx();
424 dz = -0.5*kconv*Dz();
425 ix = -1;
426 iz = -1;
aacedc3e 427 if(x<dx) return kFALSE; // outside x range.
428 if(z<dz) return kFALSE; // outside z range.
5752a110 429 for(i=0;i<Npx();i++){
430 dx += kconv*fCellSizeX[i];
431 if(x<dx) break;
432 } // end for i
aacedc3e 433 if(i>=Npx()) return kFALSE; // outside x range.
5752a110 434 for(j=0;j<Npz();j++){
435 dz += kconv*fCellSizeZ[j];
436 if(z<dz) break;
437 } // end for j
aacedc3e 438 if(j>=Npz()) return kFALSE; // outside z range.
5752a110 439 ix = i;
440 iz = j;
aacedc3e 441 return kTRUE; // Found ix and iz, return.
5752a110 442}
443//______________________________________________________________________
55d2c544 444void AliITSsegmentationSPD::DetToLocal(Int_t ix,Int_t iz,Float_t &x,Float_t &z) const
5752a110 445{
446// Transformation from Detector cell coordiantes to Geant detector centerd
447// local coordinates (cm).
448// Input:
449// Int_t ix detector x cell coordinate. Has the range 0<=ix<fNpx.
450// Int_t iz detector z cell coordinate. Has the range 0<=iz<fNpz.
451// Output:
452// Float_t x detector local coordinate x in cm with respect to the
453// center of the sensitive volume.
454// Float_t z detector local coordinate z in cm with respect to the
455// center of the sensitive volulme.
456// If ix and or iz is outside of the segmentation range a value of -0.5*Dx()
457// or -0.5*Dz() is returned.
458 Int_t i,j;
459 const Float_t kconv = 1.0E-04; // converts microns to cm.
460
461 x = -0.5*kconv*Dx(); // default value.
462 z = -0.5*kconv*Dz(); // default value.
463 if(ix<0 || ix>=Npx()) return; // outside of detector
464 if(iz<0 || iz>=Npz()) return; // outside of detctor
465 for(i=0;i<ix;i++) x += kconv*fCellSizeX[i]; // sum up to cell ix-1
466 x += 0.5*kconv*fCellSizeX[ix]; // add 1/2 of cell ix for center location.
467 for(j=0;j<iz;j++) z += kconv*fCellSizeZ[j]; // sum up cell iz-1
468 z += 0.5*kconv*fCellSizeZ[iz]; // add 1/2 of cell iz for center location.
469 return; // Found x and z, return.
470}
bd8ff387 471//______________________________________________________________________
472void AliITSsegmentationSPD::CellBoundries(Int_t ix,Int_t iz,
473 Double_t &xl,Double_t &xu,
55d2c544 474 Double_t &zl,Double_t &zu) const
bd8ff387 475{
476// Transformation from Detector cell coordiantes to Geant detector centerd
477// local coordinates (cm).
478// Input:
479// Int_t ix detector x cell coordinate. Has the range 0<=ix<fNpx.
480// Int_t iz detector z cell coordinate. Has the range 0<=iz<fNpz.
481// Output:
482// Double_t xl detector local coordinate cell lower bounds x in cm
483// with respect to the center of the sensitive volume.
484// Double_t xu detector local coordinate cell upper bounds x in cm
485// with respect to the center of the sensitive volume.
486// Double_t zl detector local coordinate lower bounds z in cm with
487// respect to the center of the sensitive volulme.
488// Double_t zu detector local coordinate upper bounds z in cm with
489// respect to the center of the sensitive volulme.
490// If ix and or iz is outside of the segmentation range a value of -0.5*Dx()
491// and -0.5*Dx() or -0.5*Dz() and -0.5*Dz() are returned.
492 Int_t i,j;
493 const Float_t kconv = 1.0E-04; // converts microns to cm.
494 Float_t x,z;
495
496 xl = xu = x = -0.5*kconv*Dx(); // default value.
497 zl = zu = z = -0.5*kconv*Dz(); // default value.
498 if(ix<0 || ix>=Npx()) return; // outside of detector
499 if(iz<0 || iz>=Npz()) return; // outside of detctor
500 for(i=0;i<ix;i++) x += kconv*fCellSizeX[i]; // sum up to cell ix-1
501 xl = x;
502 x += kconv*fCellSizeX[ix];
503 xu = x;
504 for(j=0;j<iz;j++) z += kconv*fCellSizeZ[j]; // sum up cell iz-1
505 zl = z;
506 z += kconv*fCellSizeZ[iz];
507 zu = z;
508 return; // Found x and z, return.
509}
2b6642a2 510//----------------------------------------------------------------------
511Int_t AliITSsegmentationSPD::GetChipFromChannel(Int_t, Int_t iz) const {
512 // returns chip number (in range 0-4) starting from channel number
513 if(iz>=fNpz || iz<0 ){
514 AliWarning("Bad cell number");
515 return -1;
516 }
517 Int_t theChip=iz/fgkNcolumnsPerChip;
518 return theChip;
519}
520//----------------------------------------------------------------------
521Int_t AliITSsegmentationSPD::GetChipFromLocal(Float_t, Float_t zloc) const {
522 // returns chip number (in range 0-4) starting from local coordinates
523 Int_t ix0,iz;
524 if (!LocalToDet(0,zloc,ix0,iz)) {
525 AliWarning("Bad local coordinate");
526 return -1;
527 }
528 return GetChipFromChannel(ix0,iz);
529}
530//----------------------------------------------------------------------
23197852 531Int_t AliITSsegmentationSPD::GetChipsInLocalWindow(Int_t* array, Float_t zmin, Float_t zmax, Float_t, Float_t) const {
532 // returns the number of chips containing a road defined by given local coordinate limits
533
534 const Float_t kconv = 1.0E-04; // converts microns to cm.
535
536 if (zmin>zmax) {
537 AliWarning("Bad coordinate limits: zmin>zmax!");
538 return -1;
539 }
540
541 Int_t nChipInW = 0;
542
543 Float_t zminDet = -0.5*kconv*Dz();
544 Float_t zmaxDet = 0.5*kconv*Dz();
545 if(zmin<zminDet) zmin=zminDet;
546 if(zmax>zmaxDet) zmax=zmaxDet;
547
548 Int_t n1 = GetChipFromLocal(0,zmin);
549 array[nChipInW] = n1;
550 nChipInW++;
551
552 Int_t n2 = GetChipFromLocal(0,zmax);
553
554 if(n2!=n1){
555 Int_t imin=TMath::Min(n1,n2);
556 Int_t imax=TMath::Max(n1,n2);
557 for(Int_t ichip=imin; ichip<=imax; ichip++){
558 if(ichip==n1) continue;
559 array[nChipInW]=ichip;
560 nChipInW++;
561 }
562 }
563
564 return nChipInW;
565}
566//----------------------------------------------------------------------