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 ////////////////////////////////////////////////////////////////////////
19 // This class is for the Silicon Pixel Detector, SPD, specific geometry.
20 // It is being replaced by AliITSsegmentationSPD class. This file also
21 // constains classes derived from AliITSgeomSPD which do nothing but
22 // initilize this one with predefined values.
23 ////////////////////////////////////////////////////////////////////////
25 #include <Riostream.h>
26 #include <TGeometry.h>
30 #include "AliITSgeomSPD.h"
32 ClassImp(AliITSgeomSPD)
34 AliITSgeomSPD::AliITSgeomSPD():
46 // Default Constructor. Set everthing to null.
48 //______________________________________________________________________
49 AliITSgeomSPD::AliITSgeomSPD(Float_t dy,Int_t nx,Float_t *bx,
50 Int_t nz,Float_t *bz):
62 // Standard Constructor. Set everthing to null.
64 ReSetBins(dy,nx,bx,nz,bz);
67 //______________________________________________________________________
68 void AliITSgeomSPD::ReSetBins(Float_t dy,Int_t nx,Float_t *bx,
69 Int_t nz,Float_t *bz){
70 // delets the contents of this and replaces it with the given values.
72 Float_t dx = 0.0, dz = 0.0;
74 // Compute size in x and z (based on bins).
75 for(i=0;i<nx;i++) dx += bx[i];
76 for(i=0;i<nz;i++) dz += bz[i];
80 if(fLowBinEdgeX) delete[] fLowBinEdgeX; // delete existing
81 if(fLowBinEdgeZ) delete[] fLowBinEdgeZ; // delete existing
89 fLowBinEdgeX[0] = -dx;
90 fLowBinEdgeZ[0] = -dz;
91 for(i=0;i<nx;i++) fLowBinEdgeX[i+1] = fLowBinEdgeX[i] + bx[i];
92 for(i=0;i<nz;i++) fLowBinEdgeZ[i+1] = fLowBinEdgeZ[i] + bz[i];
93 SetShape("ActiveSPD","Active volume of SPD","",dx,dy,dz);
96 //______________________________________________________________________
97 AliITSgeomSPD::AliITSgeomSPD(AliITSgeomSPD &source) : TObject(source),
99 fTitle(source.fTitle),
104 fNbinx(source.fNbinx),
105 fNbinz(source.fNbinz),
111 for(Int_t i=0;i<fNbinx;i++) fLowBinEdgeX[i] = source.fLowBinEdgeX[i];
112 for(Int_t i=0;i<fNbinz;i++) fLowBinEdgeZ[i] = source.fLowBinEdgeZ[i];
116 //______________________________________________________________________
117 AliITSgeomSPD& AliITSgeomSPD::operator=(AliITSgeomSPD &source){
119 this->~AliITSgeomSPD();
120 new(this) AliITSgeomSPD(source);
123 //______________________________________________________________________
124 AliITSgeomSPD::~AliITSgeomSPD(){
127 if(fLowBinEdgeX) delete[] fLowBinEdgeX;
128 if(fLowBinEdgeZ) delete[] fLowBinEdgeZ;
134 //______________________________________________________________________
135 void AliITSgeomSPD::SetShape(const char *name,const char *title,
136 const char * /*mat*/,Float_t dx,Float_t dy,Float_t dz){
137 // Delete any existing shape info and replace it with a new
138 // shape information.
140 // char * name Name of the shape
141 // char * title Title of the shape
142 // char * mat Material name for the shape
143 // Float_t dx half width of the shape [cm]
144 // Float_t dy half thickness of the shape [cm]
145 // Float_t dz half length of the shape [cm]
158 //______________________________________________________________________
159 void AliITSgeomSPD::LToDet(Float_t xl,Float_t zl,Int_t &row,Int_t &col){
160 // Returns the row and column pixel numbers for a given local coordinate
161 // system. If they are outside then it will return -1 or fNbinx/z.
164 if(xl<fLowBinEdgeX[0]) row = -1;
166 for(i=0;i<fNbinx;i++) if(xl<=fLowBinEdgeX[i]) break;
169 if(zl<fLowBinEdgeX[0]) col = -1;
171 for(i=0;i<fNbinz;i++) if(zl<=fLowBinEdgeZ[i]) break;
176 //______________________________________________________________________
177 void AliITSgeomSPD::DetToL(Int_t row,Int_t col,Float_t &xl,Float_t &zl){
178 // returns the pixel center local coordinate system location for a given
179 // row and column number. It the row or column number is outside of the
180 // defined range then it will return the nearest detector edge.
182 if(row>=0||row<fNbinx-1) xl = 0.5*(fLowBinEdgeX[row]+fLowBinEdgeX[row+1]);
183 else if(row<0) xl = fLowBinEdgeX[0];else xl = fLowBinEdgeX[fNbinx-1];
184 if(col>=0||col<fNbinz-1) zl = 0.5*(fLowBinEdgeZ[col]+fLowBinEdgeZ[col+1]);
185 else if(col<0) zl = fLowBinEdgeZ[0];else zl = fLowBinEdgeZ[fNbinz-1];
188 //______________________________________________________________________
189 void AliITSgeomSPD::Print(ostream *os) const {
190 // Standard output format for this class
199 #if defined __ICC || defined __ECC || defined __xlC__
206 fmt = os->setf(ios::scientific); // set scientific floating point output
207 *os << "TBRIK" << " ";
208 *os << setprecision(16) << GetDx() << " ";
209 *os << setprecision(16) << GetDy() << " ";
210 *os << setprecision(16) << GetDz() << " ";
211 *os << fNbinx-1 << " " << fNbinz-1 << " ";
212 for(i=0;i<fNbinx;i++) *os << setprecision(16) << fLowBinEdgeX[i] << " ";
213 for(i=0;i<fNbinz;i++) *os << setprecision(16) << fLowBinEdgeZ[i] << " ";
218 //______________________________________________________________________
219 void AliITSgeomSPD::Read(istream *is){
220 // Standard input format for this class
225 for(i=0;i<20;i++) shape[i]='\0';
227 if(strcmp(shape,"TBRIK")) Warning("::Read","Shape not a TBRIK");
228 *is >> dx >> dy >> dz;
229 SetShape("ActiveSPD","Active volume of SPD","",dx,dy,dz);
235 for(i=0;i<fNbinx;i++) *is >> fLowBinEdgeX[i];
236 for(i=0;i<fNbinz;i++) *is >> fLowBinEdgeZ[i];
239 //----------------------------------------------------------------------
240 ostream &operator<<(ostream &os,AliITSgeomSPD &p){
241 ////////////////////////////////////////////////////////////////////////
242 // Standard output streaming function.
243 ////////////////////////////////////////////////////////////////////////
248 //----------------------------------------------------------------------
249 istream &operator>>(istream &is,AliITSgeomSPD &r){
250 ////////////////////////////////////////////////////////////////////////
251 // Standard input streaming function.
252 ////////////////////////////////////////////////////////////////////////
257 //=====================================================================
259 ClassImp(AliITSgeomSPD300)
261 AliITSgeomSPD300::AliITSgeomSPD300() : AliITSgeomSPD(){
262 ////////////////////////////////////////////////////////////////////////
263 // default constructor, for ITS TDR geometry. This only consists of
264 // a default constructor to construct the defalut TDR SPD detector geometry
265 // 256 X 279 300 by 50 micron pixels.
266 ////////////////////////////////////////////////////////////////////////
267 const Float_t kdx=0.6400,kdy=0.0075,kdz=4.1900; // cm; Standard pixel detector
268 // size is 2dx wide, 2dz long,
269 // and 2dy thick. Geant 3.12
271 const Float_t kbinx0 = 0.0050; // cm; Standard pixel size in x direction.
272 const Int_t knbinx = 256; // number of pixels along x direction.
273 const Float_t kbinz0 = 0.0300; // cm; Standard pixel size in z direction.
274 const Float_t kbinz1 = 0.0350; // cm; Edge pixel size in z direction.
275 const Int_t knbinz = 279; // number of pixels along z direction.
277 Float_t dx=0.0,dz=0.0;
279 SetNbinX(knbinx); // default number of bins in x.
280 SetNbinZ(knbinz); // default number of bins in z.
282 for(i=0;i<knbinx;i++) dx += kbinx0; // Compute size x.
284 for(i=0;i<knbinz;i++) dz += kbinz0; // Compute size z.
285 dz += 2.0*(kbinz1-kbinz0);
289 SetLowBinEdgeX(0,-dx); // Starting position X
290 for(i=0;i<knbinx;i++) SetLowBinEdgeX(i+1,GetBinLowEdgeX(i)+kbinx0);
291 SetLowBinEdgeZ(0,-dz); // Starting position z
292 SetLowBinEdgeZ(1,GetBinLowEdgeZ(0)+kbinz1);
293 for(i=1;i<knbinz;i++) SetLowBinEdgeZ(i+1,GetBinLowEdgeZ(i)+kbinz0);
294 SetLowBinEdgeZ(knbinz,GetBinLowEdgeZ(knbinz-1)+kbinz1);
296 if(TMath::Abs(dx-kdx)>1.0E-4 || TMath::Abs(dz-kdz)>1.0E-4)
297 Warning("Default Creator","Detector size may not be write.");
298 SetShape("ActiveSPD","Active volume of SPD","",dx,kdy,dz);
300 //----------------------------------------------------------------------
301 ostream &operator<<(ostream &os,AliITSgeomSPD300 &p){
302 ////////////////////////////////////////////////////////////////////////
303 // Standard output streaming function.
304 ////////////////////////////////////////////////////////////////////////
309 //----------------------------------------------------------------------
310 istream &operator>>(istream &is,AliITSgeomSPD300 &r){
311 ////////////////////////////////////////////////////////////////////////
312 // Standard input streaming function.
313 ////////////////////////////////////////////////////////////////////////
318 //=====================================================================
320 ClassImp(AliITSgeomSPD425Short)
322 AliITSgeomSPD425Short::AliITSgeomSPD425Short() : AliITSgeomSPD(){
323 ////////////////////////////////////////////////////////////////////////
324 // default constructor, for ITS post TDR geometry. This only consists of
325 // a default constructor to construct the defalut post TDR SPD detector
326 // geometry 256 X 197 425 by 50 micron pixels with interleaved 625 by 50
327 // micron pixels (large detector).
328 ////////////////////////////////////////////////////////////////////////
330 //----------------------------------------------------------------------
331 AliITSgeomSPD425Short::AliITSgeomSPD425Short(Int_t npar,Float_t *par) :
333 ////////////////////////////////////////////////////////////////////////
334 // Standard constructor, for ITS post TDR geometry. This only consists of
335 // a default constructor to construct the defalut post TDR SPD detector
336 // geometry 256 X 197 425 by 50 micron pixels with interleaved 625 by 50
337 // micron pixels (large detector).
338 ////////////////////////////////////////////////////////////////////////
340 const Float_t kdx=0.6400/*,kdy=0.015*/,kdz=3.480; // cm; Standard pixel
341 // detector size is 2dx
342 // wide, 2dz long, and
343 // 2dy thick. Geant 3.12
345 const Float_t kbinx0 = 0.0050; // cm; Standard pixel size in x direction.
346 const Int_t knbinx = 256; // number of pixels along x direction.
347 const Float_t kbinz0 = 0.0425; // cm; Standard pixel size in z direction.
348 const Float_t kbinz1 = 0.0625; // cm; Special pixel size in z direction.
349 const Int_t knbinz = 160; // number of pixels along z direction.
351 Float_t dx,dz,*binSizeX,*binSizeZ;
353 SetNbinX(knbinx); // default number of bins in x.
354 SetNbinZ(knbinz); // default number of bins in z.
356 binSizeX = new Float_t[knbinx]; // array of bin sizes along x.
357 for(i=0;i<knbinx;i++) binSizeX[i] = kbinx0; // default x bin size.
358 binSizeZ = new Float_t[knbinz]; // array of bin sizes along z.
359 for(i=0;i<knbinz;i++) binSizeZ[i] = kbinz0; // default z bin size.
360 binSizeZ[ 31] = kbinz1;
361 binSizeZ[ 32] = kbinz1;
363 binSizeZ[ 63] = kbinz1;
364 binSizeZ[ 64] = kbinz1;
366 binSizeZ[ 95] = kbinz1;
367 binSizeZ[ 96] = kbinz1;
369 binSizeZ[127] = kbinz1;
370 binSizeZ[128] = kbinz1;
372 // correct detector size for bin size.
374 for(i=0;i<knbinx;i++) dx += binSizeX[i];
377 for(i=0;i<knbinz;i++) dz += binSizeZ[i];
381 Error("AliITSgeomSPD425Short",
382 "npar=%d<3 array par must be at least [3] or larger",npar);
385 SetShape("ActiveSPD","Active volume of SPD","",
386 par[0],par[1],par[2]);
387 if(TMath::Abs(dx-kdx)>1.0E-4 || TMath::Abs(dz-kdz)>1.0E-4)
388 Warning("Default Creator","Detector size may not be write.");
390 InitLowBinEdgeX(); // array of bin sizes along x.
391 InitLowBinEdgeZ(); // array of bin sizes along x.
392 SetLowBinEdgeX(0,-dx);
393 SetLowBinEdgeZ(0,-dz);
394 for(i=0;i<knbinx;i++) SetLowBinEdgeX(i+1,GetBinLowEdgeX(i)+binSizeX[i]);
395 for(i=0;i<knbinz;i++) SetLowBinEdgeZ(i+1,GetBinLowEdgeZ(i)+binSizeZ[i]);
397 //----------------------------------------------------------------------
398 ostream &operator<<(ostream &os,AliITSgeomSPD425Short &p){
399 ////////////////////////////////////////////////////////////////////////
400 // Standard output streaming function.
401 ////////////////////////////////////////////////////////////////////////
406 //----------------------------------------------------------------------
407 istream &operator>>(istream &is,AliITSgeomSPD425Short &r){
408 ////////////////////////////////////////////////////////////////////////
409 // Standard input streaming function.
410 ////////////////////////////////////////////////////////////////////////
415 //======================================================================
417 ClassImp(AliITSgeomSPD425Long)
419 AliITSgeomSPD425Long::AliITSgeomSPD425Long(){
420 ////////////////////////////////////////////////////////////////////////
421 // default constructor, for ITS post TDR geometry. This only consists of
422 // a default constructor to construct the defalut post TDR SPD detector
423 // geometry 256 X 197 425 by 50 micron pixels with interleaved 625 by 50
424 // micron pixels (large detector).
425 ////////////////////////////////////////////////////////////////////////
427 const Float_t kdx=0.6400,kdy=0.0075,kdz=4.2650; // cm; Standard pixel
428 // detector size is 2dx
429 // wide, 2dz long, and
430 // 2dy thick. Geant 3.12
432 const Float_t kbinx0 = 0.0050; // cm; Standard pixel size in x direction.
433 const Int_t knbinx = 256; // number of pixels along x direction.
434 const Float_t kbinz0 = 0.0425; // cm; Standard pixel size in z direction.
435 const Float_t kbinz1 = 0.0625; // cm; Special pixel size in z direction.
436 const Int_t knbinz = 192; // number of pixels along z direction.
438 Float_t dx,dz,*binSizeX,*binSizeZ;
440 SetNbinX(knbinx); // default number of bins in x.
441 SetNbinZ(knbinz); // default number of bins in z.
443 binSizeX = new Float_t[knbinx]; // array of bin sizes along x.
444 for(i=0;i<knbinx;i++) binSizeX[i] = kbinx0; // default x bin size.
445 binSizeZ = new Float_t[knbinz]; // array of bin sizes along z.
446 for(i=0;i<knbinz;i++) binSizeZ[i] = kbinz0; // default z bin size.
447 binSizeZ[ 31] = kbinz1;
448 binSizeZ[ 32] = kbinz1;
450 binSizeZ[ 63] = kbinz1;
451 binSizeZ[ 64] = kbinz1;
453 binSizeZ[ 95] = kbinz1;
454 binSizeZ[ 96] = kbinz1;
456 binSizeZ[127] = kbinz1;
457 binSizeZ[128] = kbinz1;
459 binSizeZ[159] = kbinz1;
460 binSizeZ[160] = kbinz1;
462 // correct detector size for bin size.
464 for(i=0;i<knbinx;i++) dx += binSizeX[i];
467 for(i=0;i<knbinz;i++) dz += binSizeZ[i];
470 SetShape("ActiveSPD","Active volume of SPD","",dx,kdy,dz);
471 if(TMath::Abs(dx-kdx)>1.0E-4 || TMath::Abs(dz-kdz)>1.0E-4)
472 Warning("Default Creator","Detector size may not be write.");
474 InitLowBinEdgeX(); // array of bin sizes along x.
475 InitLowBinEdgeZ(); // array of bin sizes along x.
476 SetLowBinEdgeX(0,-dx);
477 SetLowBinEdgeZ(0,-dz);
478 for(i=0;i<knbinx;i++) SetLowBinEdgeX(i+1,GetBinLowEdgeX(i)+binSizeX[i]);
479 for(i=0;i<knbinz;i++) SetLowBinEdgeZ(i+1,GetBinLowEdgeZ(i)+binSizeZ[i]);
481 //----------------------------------------------------------------------
482 ostream &operator<<(ostream &os,AliITSgeomSPD425Long &p){
483 ////////////////////////////////////////////////////////////////////////
484 // Standard output streaming function.
485 ////////////////////////////////////////////////////////////////////////
490 //----------------------------------------------------------------------
491 istream &operator>>(istream &is,AliITSgeomSPD425Long &r){
492 ////////////////////////////////////////////////////////////////////////
493 // Standard input streaming function.
494 ////////////////////////////////////////////////////////////////////////
499 //======================================================================