* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.16 2001/02/08 23:57:00 nilsen
-Fixed up some informational printouts.
-
-Revision 1.15 2001/02/07 20:23:21 nilsen
-Fixed bug with HP and no unget in iostream.h. Now using putback instead.
-Other changes and fixes also included.
-
-Revision 1.14 2001/02/03 00:00:29 nilsen
-New version of AliITSgeom and related files. Now uses automatic streamers,
-set up for new formatted .det file which includes detector information.
-Additional smaller modifications are still to come.
-
-Revision 1.11 2000/10/02 16:32:35 barbera
-Forward declaration added
-
-Revision 1.4.4.15 2000/10/02 15:52:05 barbera
-Forward declaration added
-
-Revision 1.10 2000/09/05 14:25:50 nilsen
-Made fixes for HP compiler. All function parameter default values placed
-in .h file. Fixed the usual problem with HP comilers and the "for(Int_t i..."
-business. Replaced casting (Double_t [3][3]) to (Double_t (*)[3]) for HP.
-Lastly removed all "const" before function parameters which were 2 dim. arrays,
-because on HP root generates some strange code (?). Thanks Peter for the
-changes.
-
-Revision 1.9 2000/08/29 20:19:03 nilsen
-Removed dependancy on structure AliITSeomS and replaced it with class
-AliITSgeomMatrix. Added many new functions with many new arguments. Most
-in the form of in line functions for speed.
-
-Revision 1.4.4.6 2000/06/04 16:33:32 Nilsen
-A restructured AliITSgeom class. Now used AliITSgeomMatrix.
-
-Revision 1.4.4.5 2000/03/04 23:42:39 Nilsen
-Updated the comments/documentations and improved the maintainability of the
-code.
-
-Revision 1.4.4.4 2000/03/02 21:27:07 Nilsen
-Added two functions, SetByAngles and SetTrans.
-
-Revision 1.4.4.3 2000/01/23 03:09:10 Nilsen
-// fixed compiler warnings for new function LtLErrorMatrix(...)
-
-Revision 1.4.4.2 2000/01/19 23:18:20 Nilsen
-Added transformations of Error matrix to AliITSgeom and fixed some typos
-in AliITS.h and AliITShitIndex.h
-
-Revision 1.4.4.1 2000/01/12 19:03:32 Nilsen
-This is the version of the files after the merging done in December 1999.
-See the ReadMe110100.txt file for details
-
-Revision 1.4 1999/10/15 07:03:20 fca
-Fixed bug in GetModuleId(Int_t index,Int_t &lay,Int_t &lad, Int_t &det) and
-a typo in the creator. aliroot need to be rerun to get a fixed geometry.
-
-Revision 1.3 1999/10/04 15:20:12 fca
-Correct syntax accepted by g++ but not standard for static members, remove minor warnings
-
-Revision 1.2 1999/09/29 09:24:20 fca
-Introduction of the Copyright and cvs Log
-
-*/
+/* $Id$ */
///////////////////////////////////////////////////////////////////////
// ITS geometry manipulation routines. //
// ITS volumes. See the example classes AliITSgeomSPD, AliITSgeomSDD,
// and AliITSgeomSSD for a more detailed example.
////////////////////////////////////////////////////////////////////////
-#include <iostream.h>
-#include <fstream.h>
-#include <iomanip.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
+#include <Riostream.h>
-#include <TSystem.h>
-#include <TVector.h>
-#include <TObject.h>
#include <TRandom.h>
+#include <TSystem.h>
#include "AliITSgeom.h"
-//#include "AliITSgeomMatrix.h" // include in AliITSgeom.h
-#include "AliITSgeomSPD.h"
#include "AliITSgeomSDD.h"
+#include "AliITSgeomSPD.h"
#include "AliITSgeomSSD.h"
+#include "AliLog.h"
ClassImp(AliITSgeom)
-//_____________________________________________________________________
+//______________________________________________________________________
AliITSgeom::AliITSgeom(){
-////////////////////////////////////////////////////////////////////////
-// The default constructor for the AliITSgeom class. It, by default,
-// sets fNlayers to zero and zeros all pointers.
-////////////////////////////////////////////////////////////////////////
- // Default constructor.
- // Do not allocate anything zero everything
+ // The default constructor for the AliITSgeom class. It, by default,
+ // sets fNlayers to zero and zeros all pointers.
+ // Do not allocate anything zero everything.
+
fTrans = 0; // standard GEANT global/local coordinate system.
fNlayers = 0;
fNlad = 0;
strcpy(fVersion,"test");
return;
}
-//_____________________________________________________________________
+//______________________________________________________________________
AliITSgeom::AliITSgeom(Int_t itype,Int_t nlayers,Int_t *nlads,Int_t *ndets,
Int_t mods){
-////////////////////////////////////////////////////////////////////////
-// A simple constructor to set basic geometry class variables
-// Input:
-// itype the type of transofmation kept.
-// 0 => Standard Geant
-// bit 1 => ITS tracking
-// bit 2 => A change in the coordiante system has been made.
-// others are still to be defined as needed.
-// nlayers The number of ITS layers also set the size of the arrays
-// *nlads an array of the number of ladders for each layer
-// *ndets an array of the number of detectors per ladder for each layer.
-////////////////////////////////////////////////////////////////////////
+ // A simple constructor to set basic geometry class variables
+ // Inputs:
+ // Int_t itype the type of transformation kept.
+ // bit 0 => Standard GEANT
+ // bit 1 => ITS tracking
+ // bit 2 => A change in the coordinate system has been made.
+ // others are still to be defined as needed.
+ // Int_t nlayers The number of ITS layers also set the size of the arrays
+ // Int_t *nlads an array of the number of ladders for each layer. This
+ // array must be nlayers long.
+ // Int_t *ndets an array of the number of detectors per ladder for each
+ // layer. This array must be nlayers long.
+ // Int_t mods The number of modules. Typicaly the sum of all the
+ // detectors on every layer and ladder.
+ // Outputs:
+ // none
Int_t i;
fTrans = itype;
}
//______________________________________________________________________
void AliITSgeom::CreatMatrix(Int_t mod,Int_t lay,Int_t lad,Int_t det,
- AliITSDetector idet,Double_t tran[3],
- Double_t rot[10]){
+ AliITSDetector idet,const Double_t tran[3],
+ const Double_t rot[10]){
+ // Given the translation vector tran[3] and the rotation matrix rot[1],
+ // this function creates and adds to the TObject Array fGm the
+ // AliITSgeomMatrix object.
+ // Inputs are:
+ // Int_t mod The module number. The location in TObjArray
+ // Int_t lay The layer where this module is
+ // Int_t lad On which ladder this module is
+ // Int_t det Which detector on this ladder this module is
+ // AliITSDetector idet The type of detector see AliITSgeom.h
+ // Double_t tran[3] The translation vector
+ // Double_t rot[10] The rotation matrix.
+ // Outputs are:
+ // none
+ // The rot[10] matrix is set up like:
+ /* / rot[0] rot[1] rot[2] \
+ // | rot[3] rot[4] rot[5] |
+ // \ rot[6] rot[7] rot[8] / if(rot[9]!=0) then the Identity matrix
+ // is used regardless of the values in rot[0]-rot[8].
+ */
Int_t id[3];
Double_t r[3][3] = {{1.0,0.0,0.0},{0.0,1.0,0.0},{0.0,0.0,1.0}};
} // end if
fGm->AddAt(new AliITSgeomMatrix(idet,id,r,tran),mod);
}
-//_____________________________________________________________________
+//______________________________________________________________________
AliITSgeom::~AliITSgeom(){
-////////////////////////////////////////////////////////////////////////
-// The destructor for the AliITSgeom class. If the arrays fNlad,
-// fNdet, or fGm have had memory allocated to them, there pointer values
-// are non zero, then this memory space is freed and they are set
-// to zero. In addition, fNlayers is set to zero. The destruction of
-// TObjArray fShape is, by default, handled by the TObjArray destructor.
-////////////////////////////////////////////////////////////////////////
- // Default destructor.
- // if arrays exist delete them. Then set everything to zero.
+ // The destructor for the AliITSgeom class. If the arrays fNlad,
+ // fNdet, or fGm have had memory allocated to them, there pointer values
+ // are non zero, then this memory space is freed and they are set
+ // to zero. In addition, fNlayers is set to zero. The destruction of
+ // TObjArray fShape is, by default, handled by the TObjArray destructor.
+
if(fGm!=0){
- for(Int_t i=0;i<fNlayers;i++) delete fGm->At(i);
+ //for(Int_t i=0;i<fNlayers;i++) delete fGm->At(i);
+ fGm->Delete();
delete fGm;
} // end if fGm!=0
if(fNlad!=0) delete[] fNlad;
}
//______________________________________________________________________
void AliITSgeom::ReadNewFile(const char *filename){
+ // It is generaly preferred to define the geometry in AliITSgeom
+ // directly from the GEANT geometry, see AliITSvPPRasymm.cxx for
+ // and example. Under some circumstances this may not be possible.
+ // This function will read in a formatted file for all of the
+ // information needed to define the geometry in AliITSgeom.
+ // Unlike the older file format, this file may contain comments
+ // and the order of the data does not need to be completely
+ // respected. A file can be created using the function WriteNewFile
+ // defined below.
+ // Inputs are:
+ // const char *filename The file name of the file to be read in.
+ // Outputs are:
+ // none
Int_t ncmd=9;
const char *cmda[]={"Version" ,"fTrans" ,"fNmodules",
"fNlayers" ,"fNladers","fNdetectors",
"fNDetectorTypes","fShape" ,"Matrix"};
Int_t i,j,lNdetTypes,ldet;
char cmd[20],c;
- AliITSgeomSPD *spd;
- AliITSgeomSDD *sdd;
- AliITSgeomSSD *ssd;
- AliITSgeomMatrix *m;
- ifstream *fp;
- char *filtmp;
+ AliITSgeomSPD *spd=0;
+ AliITSgeomSDD *sdd=0;
+ AliITSgeomSSD *ssd=0;
+ AliITSgeomMatrix *m=0;
+ ifstream *fp=0;
+ char *filtmp=0;
filtmp = gSystem->ExpandPathName(filename);
- cout << "AliITSgeom, Reading New .det file " << filtmp << endl;
+ AliInfo(Form("Reading New .det file %s",filtmp));
fp = new ifstream(filtmp,ios::in); // open file to write
while(fp->get(c)!=NULL){ // for ever loop
if(c==' ') continue; // remove blanks
if(c=='\n') continue;
- if(c=='#' || c=='!'){for(;fp->get(c)!=NULL,c!='\n';); continue;}
+ if(c=='#' || c=='!') {while(fp->get(c)) if(c=='\n') break; continue;}
if(c=='/'){
fp->get(c);{
- if(c=='/'){for(;fp->get(c)!=NULL,c!='\n';);continue;}
+ if(c=='/') {while(fp->get(c)) if(c=='\n') break; continue;}
if(c=='*'){
NotYet:
- for(;fp->get(c)!=NULL,c!='*';);
+ while(fp->get(c)) if(c=='*') break;
fp->get(c);{
if(c=='/') continue;
goto NotYet;
} // end if second /
} // end if first /
fp->putback(c);
-// fp->unget();
*fp >> cmd;
for(i=0;i<ncmd;i++) if(strcmp(cmd,cmda[i])==0) break;
switch (i){
if(fShape==0) fShape = new TObjArray(5,0);
switch (ldet){
case kSPD :
- ReSetShape(ldet,(TObject*) new AliITSgeomSPD());
- spd = (AliITSgeomSPD*) (fShape->At(ldet));
+ spd = new AliITSgeomSPD();
*fp >> *spd;
+ ReSetShape(ldet,spd);
spd = 0;
break;
- case kSDD :
- ReSetShape(ldet,(TObject*) new AliITSgeomSDD());
- sdd = (AliITSgeomSDD*) (fShape->At(ldet));
+ case kSDD : case kSDDp:
+ sdd = new AliITSgeomSDD();
*fp >> *sdd;
+ ReSetShape(ldet,sdd);
sdd = 0;
break;
case kSSD : case kSSDp :
- ReSetShape(ldet,(TObject*) new AliITSgeomSSD());
- ssd = (AliITSgeomSSD*) (fShape->At(ldet));
+ ssd = new AliITSgeomSSD();
*fp >> *ssd;
+ ReSetShape(ldet,ssd);
ssd = 0;
break;
default:
- Error("ReadNewFile","Unknown fShape type number=%d c=%c",ldet,c);
- for(;fp->get(c)==NULL,c!='\n';); // skip to end of line.
+ AliError(Form("Unknown fShape type number=%d c=%c",ldet,c));
+ while(fp->get(c)) if(c=='\n') break; // skip to end of line.
break;
} // end switch
break;
m = 0;
break;
default:
- Error("ReadNewFile","Data line i=%d c=%c",i,c);
- for(;fp->get(c)==NULL,c!='\n';); // skip this line
+ AliError(Form("ReadNewFile","Data line i=%d c=%c",i,c));
+ while(fp->get(c)) if(c=='\n') break; // skip this line
break;
} // end switch i
} // end while
}
//______________________________________________________________________
void AliITSgeom::WriteNewFile(const char *filename){
-// Writes AliITSgeom, AliITSgeomMatrix, and the defined AliITSgeomS*D classes
-// to a file in a format that is more readable and commentable.
+ // Writes AliITSgeom, AliITSgeomMatrix, and the defined AliITSgeomS*D
+ // classes to a file in a format that is more readable and commendable.
+ // Inputs are:
+ // const char *filename The file name of the file to be write to.
+ // Outputs are:
+ // none
ofstream *fp;
Int_t i;
char *filtmp;
*fp << ", kSDD=" << (Int_t) kSDD << ", kSSD=" << (Int_t) kSSD;
*fp << ", kSSDp=" << (Int_t) kSSDp << ", and kSDDp=" << (Int_t) kSDDp;
*fp << "*/" << endl;
- *fp << "Version " << fVersion << endl;//This should be consistant with the
+ *fp << "Version " << fVersion << endl;//This should be consistent with the
// geometry version.
*fp << "fTrans " << fTrans << endl;
*fp << "fNmodules " << fNmodules << endl;
delete fp;
return;
}
-//_____________________________________________________________________
+//______________________________________________________________________
AliITSgeom::AliITSgeom(const char *filename){
-////////////////////////////////////////////////////////////////////////
-// The constructor for the AliITSgeom class. All of the data to fill
-// this structure is read in from the file given my the input filename.
-////////////////////////////////////////////////////////////////////////
- FILE *pf=0;
- Int_t i,lm=0,id[3];
- Int_t l,a,d;
- Float_t x,y,z,o,p,q,r,s,t;
- Double_t rot6[6],tran[3];
- char buf[200],*buff=0; // input character buffer;
- char *filtmp;
-
- filtmp = gSystem->ExpandPathName(filename);
- cout << "AliITSgeom reading old .det file " << filtmp << endl;
- fShape = 0;
- strcpy(fVersion,"DefauleV5");
- pf = fopen(filtmp,"r");
+ // The constructor for the AliITSgeom class. All of the data to fill
+ // this structure is read in from the file given my the input filename.
+ // Inputs are:
+ // const char *filename The file name of the file to be read in.
+ // Outputs are:
+ // none
+ FILE *pf=0;
+ Int_t i,lm=0,id[3];
+ Int_t l,a,d;
+ Float_t x,y,z,o,p,q,r,s,t;
+ Double_t rot6[6],tran[3];
+ char buf[200],*buff=0; // input character buffer;
+ char *filtmp;
- fNlayers = 6; // set default number of ladders
-TryAgain:
- fNlad = new Int_t[fNlayers];
- fNdet = new Int_t[fNlayers];
- fNmodules = 0;
- // find the number of ladders and detectors in this geometry.
- for(i=0;i<fNlayers;i++){fNlad[i]=fNdet[i]=0;} // zero out arrays
- while(fgets(buf,200,pf)!=NULL){ // for ever loop
- for(i=0;i<200;i++)if(buf[i]!=' '){ // remove blank spaces.
- buff = &(buf[i]);
- break;
- } // end for i
- // remove blank lines and comments.
- if(buff[0]=='\n'||buff[0]=='#'||buff[0]=='!'||
- (buff[0]=='/'&&buff[1]=='/')) continue;
- if(isalpha(buff[0])) { // must be the new file formated file.
+ filtmp = gSystem->ExpandPathName(filename);
+ cout << "AliITSgeom reading old .det file " << filtmp << endl;
+ fShape = 0;
+ strcpy(fVersion,"DefauleV5");
+ pf = fopen(filtmp,"r");
+
+ fNlayers = 6; // set default number of ladders
+ TryAgain:
+ fNlad = new Int_t[fNlayers];
+ fNdet = new Int_t[fNlayers];
+ fNmodules = 0;
+ // find the number of ladders and detectors in this geometry.
+ for(i=0;i<fNlayers;i++){fNlad[i]=fNdet[i]=0;} // zero out arrays
+ while(fgets(buf,200,pf)!=NULL){ // for ever loop
+ for(i=0;i<200;i++)if(buf[i]!=' '){ // remove blank spaces.
+ buff = &(buf[i]);
+ break;
+ } // end for i
+ // remove blank lines and comments.
+ if(buff[0]=='\n'||buff[0]=='#'||buff[0]=='!'||
+ (buff[0]=='/'&&buff[1]=='/')) continue;
+ if(isalpha(buff[0])) { // must be the new file formated file.
fclose(pf);
delete[] fNlad;delete[] fNdet;
ReadNewFile(filename);
return;
- } // end if isalpha(buff[0])
- sscanf(buff,"%d %d %d %f %f %f %f %f %f %f %f %f",
- &l,&a,&d,&x,&y,&z,&o,&p,&q,&r,&s,&t);
- if(l>lm) lm = l;
- if(l<1 || l>fNlayers) {
- printf("error in file %s layer=%d min. is 1 max is %d\n",
- filename,l,fNlayers);
- continue;
- }// end if l
- fNmodules++;
- if(l<=fNlayers&&fNlad[l-1]<a) fNlad[l-1] = a;
- if(l<=fNlayers&&fNdet[l-1]<d) fNdet[l-1] = d;
- } // end while ever loop
- if(lm>fNlayers){
+ } // end if isalpha(buff[0])
+ sscanf(buff,"%d %d %d %f %f %f %f %f %f %f %f %f",
+ &l,&a,&d,&x,&y,&z,&o,&p,&q,&r,&s,&t);
+ if(l>lm) lm = l;
+ if(l<1 || l>fNlayers) {
+ printf("error in file %s layer=%d min. is 1 max is %d\n",
+ filename,l,fNlayers);
+ continue;
+ }// end if l
+ fNmodules++;
+
if(l<=fNlayers&&fNlad[l-1]<a) fNlad[l-1] = a;
+ if(l<=fNlayers&&fNdet[l-1]<d) fNdet[l-1] = d;
+ } // end while ever loop
+ if(lm>fNlayers){
delete[] fNlad;
delete[] fNdet;
fNlayers = lm;
goto TryAgain;
- } // end if lm>fNlayers
- // counted the number of ladders and detectors now allocate space.
- fGm = new TObjArray(fNmodules,0);
+ } // end if lm>fNlayers
+ // counted the number of ladders and detectors now allocate space.
+ fGm = new TObjArray(fNmodules,0);
- // Set up Shapes for a default configuration of 6 layers.
- fTrans = 0; // standard GEANT global/local coordinate system.
- // prepare to read in transforms
- lm = 0; // reuse lm as counter of modules.
- rewind(pf); // start over reading file
- while(fgets(buf,200,pf)!=NULL){ // for ever loop
- for(i=0;i<200;i++)if(buf[i]!=' '){ // remove blank spaces.
- buff = &(buf[i]);
- break;
- } // end for i
- // remove blank lines and comments.
- if(buff[0]=='\n'||buff[0]=='#'||buff[0]=='!'||
- (buff[0]=='/'&&buff[1]=='/')) continue;
- x = y = z = o = p = q = r = s = t = 0.0;
- sscanf(buff,"%d %d %d %f %f %f %f %f %f %f %f %f",
- &l,&a,&d,&x,&y,&z,&o,&p,&q,&r,&s,&t);
- if(l<1 || l>fNlayers) {
- printf("error in file %s layer=%d min. is 1 max is %d/n",
- filename,l,fNlayers);
- continue;
- }// end if l
- id[0] = l;id[1] = a;id[2] = d;
- tran[0] = tran[1] = tran[2] = 0.0;
- tran[0] = (Double_t)x;tran[1] = (Double_t)y;tran[2] = (Double_t)z;
- rot6[0] = rot6[1] = rot6[2] = rot6[3] = rot6[4] = rot6[5] =0.0;
- rot6[0] = (Double_t)o;rot6[1] = (Double_t)p;rot6[2] = (Double_t)q;
- rot6[3] = (Double_t)r;rot6[4] = (Double_t)s;rot6[5] = (Double_t)t;
- switch (l){
- case 1: case 2: // layer 1 or2 SPD
- fGm->AddAt(new AliITSgeomMatrix(rot6,kSPD,id,tran),lm++);
- break;
- case 3: case 4: // layer 3 or 4 SDD
- fGm->AddAt(new AliITSgeomMatrix(rot6,kSDD,id,tran),lm++);
- break;
- case 5: case 6: // layer 5 or 6 SSD
- fGm->AddAt(new AliITSgeomMatrix(rot6,kSSD,id,tran),lm++);
- break;
- } // end switch
- } // end while ever loop
- fclose(pf);
+ // Set up Shapes for a default configuration of 6 layers.
+ fTrans = 0; // standard GEANT global/local coordinate system.
+ // prepare to read in transforms
+ lm = 0; // reuse lm as counter of modules.
+ rewind(pf); // start over reading file
+ while(fgets(buf,200,pf)!=NULL){ // for ever loop
+ for(i=0;i<200;i++)if(buf[i]!=' '){ // remove blank spaces.
+ buff = &(buf[i]);
+ break;
+ } // end for i
+ // remove blank lines and comments.
+ if(buff[0]=='\n'||buff[0]=='#'||buff[0]=='!'||
+ (buff[0]=='/'&&buff[1]=='/')) continue;
+ x = y = z = o = p = q = r = s = t = 0.0;
+ sscanf(buff,"%d %d %d %f %f %f %f %f %f %f %f %f",
+ &l,&a,&d,&x,&y,&z,&o,&p,&q,&r,&s,&t);
+ if(l<1 || l>fNlayers) {
+ printf("error in file %s layer=%d min. is 1 max is %d/n",
+ filename,l,fNlayers);
+ continue;
+ }// end if l
+ id[0] = l;id[1] = a;id[2] = d;
+ tran[0] = tran[1] = tran[2] = 0.0;
+ tran[0] = (Double_t)x;tran[1] = (Double_t)y;tran[2] = (Double_t)z;
+ rot6[0] = rot6[1] = rot6[2] = rot6[3] = rot6[4] = rot6[5] =0.0;
+ rot6[0] = (Double_t)o;rot6[1] = (Double_t)p;rot6[2] = (Double_t)q;
+ rot6[3] = (Double_t)r;rot6[4] = (Double_t)s;rot6[5] = (Double_t)t;
+ switch (l){
+ case 1: case 2: // layer 1 or2 SPD
+ fGm->AddAt(new AliITSgeomMatrix(rot6,kSPD,id,tran),lm++);
+ break;
+ case 3: case 4: // layer 3 or 4 SDD
+ fGm->AddAt(new AliITSgeomMatrix(rot6,kSDD,id,tran),lm++);
+ break;
+ case 5: case 6: // layer 5 or 6 SSD
+ fGm->AddAt(new AliITSgeomMatrix(rot6,kSSD,id,tran),lm++);
+ break;
+ } // end switch
+ } // end while ever loop
+ fclose(pf);
}
-
-//________________________________________________________________________
-AliITSgeom::AliITSgeom(AliITSgeom &source){
-////////////////////////////////////////////////////////////////////////
-// The copy constructor for the AliITSgeom class. It calls the
-// = operator function. See the = operator function for more details.
-////////////////////////////////////////////////////////////////////////
+//______________________________________________________________________
+AliITSgeom::AliITSgeom(const AliITSgeom &source) : TObject(source){
+ // The copy constructor for the AliITSgeom class. It calls the
+ // = operator function. See the = operator function for more details.
+ // Inputs are:
+ // AliITSgeom &source The AliITSgeom class with which to make this
+ // a copy of.
+ // Outputs are:
+ // none.
*this = source; // Just use the = operator for now.
-
return;
}
-
-//________________________________________________________________________
-void AliITSgeom::operator=(AliITSgeom &source){
-////////////////////////////////////////////////////////////////////////
-// The = operator function for the AliITSgeom class. It makes an
-// independent copy of the class in such a way that any changes made
-// to the copied class will not affect the source class in any way.
-// This is required for many ITS alignment studies where the copied
-// class is then modified by introducing some misalignment.
-////////////////////////////////////////////////////////////////////////
+//______________________________________________________________________
+AliITSgeom& AliITSgeom::operator=(const AliITSgeom &source){
+ // The = operator function for the AliITSgeom class. It makes an
+ // independent copy of the class in such a way that any changes made
+ // to the copied class will not affect the source class in any way.
+ // This is required for many ITS alignment studies where the copied
+ // class is then modified by introducing some misalignment.
+ // Inputs are:
+ // AliITSgeom &source The AliITSgeom class with which to make this
+ // a copy of.
+ // Outputs are:
+ // return *this The a new copy of source.
Int_t i;
- if(this == &source) return; // don't assign to ones self.
+ if(this == &source) return *this; // don't assign to ones self.
// if there is an old structure allocated delete it first.
if(this->fGm != 0){
this->fGm->AddAt(new AliITSgeomMatrix(*(
(AliITSgeomMatrix*)(source.fGm->At(i)))),i);
} // end for i
- return;
-}//_____________________________________________________________________
-Int_t AliITSgeom::GetModuleIndex(const Int_t lay,const Int_t lad,
- const Int_t det){
-////////////////////////////////////////////////////////////////////////
-// This routine computes the module index number from the layer,
-// ladder, and detector numbers. The number of ladders and detectors
-// per layer is determined when this geometry package is constructed,
-// see AliITSgeom(const char *filename) for specifics.
-////////////////////////////////////////////////////////////////////////
+ return *this;
+}
+//______________________________________________________________________
+Int_t AliITSgeom::GetModuleIndex(Int_t lay,Int_t lad,Int_t det){
+ // This routine computes the module index number from the layer,
+ // ladder, and detector numbers. The number of ladders and detectors
+ // per layer is determined when this geometry package is constructed,
+ // see AliITSgeom(const char *filename) for specifics.
+ // Inputs are:
+ // Int_t lay The layer number. Starting from 1.
+ // Int_t lad The ladder number. Starting from 1.
+ // Int_t det The detector number. Starting from 1.
+ // Outputs are:
+ // return the module index number, starting from zero.
Int_t i,j,k,id[3];
i = fNdet[lay-1] * (lad-1) + det - 1;
j = 0;
for(k=0;k<lay-1;k++) j += fNdet[k]*fNlad[k];
i = i+j;
+ if(i>=fNmodules) return -1;
GetGeomMatrix(i)->GetIndex(id);
if(id[0]==lay&&id[1]==lad&&id[2]==det) return i;
// Array of modules fGm is not in expected order. Search for this index
return -1;
}
//______________________________________________________________________
-void AliITSgeom::GetModuleId(const Int_t index,
- Int_t &lay,Int_t &lad,Int_t &det){
-////////////////////////////////////////////////////////////////////////
-// This routine computes the layer, ladder and detector number
-// given the module index number. The number of ladders and detectors
-// per layer is determined when this geometry package is constructed,
-// see AliITSgeom(const char *filename) for specifics.
-////////////////////////////////////////////////////////////////////////
+void AliITSgeom::GetModuleId(Int_t index,Int_t &lay,Int_t &lad,Int_t &det){
+ // This routine computes the layer, ladder and detector number
+ // given the module index number. The number of ladders and detectors
+ // per layer is determined when this geometry package is constructed,
+ // see AliITSgeom(const char *filename) for specifics.
+ // Inputs are:
+ // Int_t index The module index number, starting from zero.
+ // Outputs are:
+ // Int_t lay The layer number. Starting from 1.
+ // Int_t lad The ladder number. Starting from 1.
+ // Int_t det The detector number. Starting from 1.
Int_t id[3];
-
- GetGeomMatrix(index)->GetIndex(id);
- lay = id[0]; lad = id[1]; det = id[2];
+ AliITSgeomMatrix *g = GetGeomMatrix(index);
+ if (g == 0x0)
+ {
+ Error("GetModuleId","Can not get GeoMatrix for index = %d",index);
+ lay = -1; lad = -1; det = -1;
+ }
+ else
+ {
+ g->GetIndex(id);
+ lay = id[0]; lad = id[1]; det = id[2];
+ }
return;
// The old way kept for posterity.
return;
*/
}
-//___________________________________________________________________________
-Int_t AliITSgeom::GetStartDet(const Int_t dtype){
- /////////////////////////////////////////////////////////////////////////
- // returns the starting module index value for a give type of detector id
- /////////////////////////////////////////////////////////////////////////
-
- switch(dtype){
- case 0:
- return GetModuleIndex(1,1,1);
- break;
- case 1:
- return GetModuleIndex(3,1,1);
- break;
- case 2:
- return GetModuleIndex(5,1,1);
- break;
- default:
- printf("<AliITSgeom::GetFirstDet> undefined detector type\n");
- return 0;
- } // end switch
-
- printf("<AliITSgeom::GetFirstDet> undefined detector type\n");
- return 0;
+//______________________________________________________________________
+Int_t AliITSgeom::GetStartDet(Int_t dtype){
+ // returns the starting module index value for a give type of detector id.
+ // This assumes that the detector types are different on different layers
+ // and that they are not mixed up.
+ // Inputs are:
+ // Int_t dtype A detector type number. 0 for SPD, 1 for SDD, and 2 for SSD.
+ // outputs:
+ // return the module index for the first occurance of that detector type.
+
+ switch(dtype){
+ case 0:
+ return GetModuleIndex(1,1,1);
+ break;
+ case 1:
+ return GetModuleIndex(3,1,1);
+ break;
+ case 2:
+ return GetModuleIndex(5,1,1);
+ break;
+ default:
+ Warning("GetStartDet","undefined detector type %d",dtype);
+ return 0;
+ } // end switch
+
+ Warning("GetStartDet","undefined detector type %d",dtype);
+ return 0;
}
-
-//___________________________________________________________________________
-Int_t AliITSgeom::GetLastDet(const Int_t dtype){
- /////////////////////////////////////////////////////////////////////////
- // returns the last module index value for a give type of detector id
- /////////////////////////////////////////////////////////////////////////
-
- switch(dtype){
- case 0:
- return GetLastSPD();
- break;
- case 1:
- return GetLastSDD();
- break;
- case 2:
- return GetLastSSD();
- break;
- default:
- printf("<AliITSgeom::GetLastDet> undefined detector type\n");
- return 0;
- } // end switch
-
- printf("<AliITSgeom::GetLastDet> undefined detector type\n");
- return 0;
+//______________________________________________________________________
+Int_t AliITSgeom::GetLastDet(Int_t dtype){
+ // returns the last module index value for a give type of detector id.
+ // This assumes that the detector types are different on different layers
+ // and that they are not mixed up.
+ // Inputs are:
+ // Int_t dtype A detector type number. 0 for SPD, 1 for SDD, and 2 for SSD.
+ // outputs are:
+ // return the module index for the last occurance of that detector type.
+
+ switch(dtype){
+ case 0:
+ return GetLastSPD();
+ break;
+ case 1:
+ return GetLastSDD();
+ break;
+ case 2:
+ return GetLastSSD();
+ break;
+ default:
+ Warning("GetLastDet","undefined detector type %d",dtype);
+ return 0;
+ } // end switch
+
+ Warning("GetLastDet","undefined detector type %d",dtype);
+ return 0;
}
-
-//___________________________________________________________________________
+//______________________________________________________________________
void AliITSgeom::PrintComparison(FILE *fp,AliITSgeom *other){
-////////////////////////////////////////////////////////////////////////
-// This function was primarily created for diagnostic reasons. It
-// print to a file pointed to by the file pointer fp the difference
-// between two AliITSgeom classes. The format of the file is basicly,
-// define d? to be the difference between the same element of the two
-// classes. For example dfrx = this->GetGeomMatrix(i)->frx
-// - other->GetGeomMatrix(i)->frx.
-// if(at least one of dfx0, dfy0, dfz0,dfrx,dfry,dfrz are non zero) then print
-// layer ladder detector dfx0 dfy0 dfz0 dfrx dfry dfrz
-// if(at least one of the 9 elements of dfr[] are non zero) then print
-// layer ladder detector dfr[0] dfr[1] dfr[2]
-// dfr[3] dfr[4] dfr[5]
-// dfr[6] dfr[7] dfr[8]
-// Only non zero values are printed to save space. The differences are
-// typical written to a file because there are usually a lot of numbers
-// printed out and it is usually easier to read them in some nice editor
-// rather than zooming quickly past you on a screen. fprintf is used to
-// do the printing. The fShapeIndex difference is not printed at this time.
-////////////////////////////////////////////////////////////////////////
- Int_t i,j,idt[3],ido[3];
- Double_t tt[3],to[3]; // translation
- Double_t rt[3],ro[3]; // phi in radians
- Double_t mt[3][3],mo[3][3]; // matrixes
- AliITSgeomMatrix *gt,*go;
- Bool_t t;
-
- for(i=0;i<this->fNmodules;i++){
- gt = this->GetGeomMatrix(i);
- go = other->GetGeomMatrix(i);
- gt->GetIndex(idt);
- go->GetIndex(ido);
- t = kFALSE;
- for(i=0;i<3;i++) t = t&&idt[i]!=ido[i];
- if(t) fprintf(fp,"%4.4d %1.1d %2.2d %2.2d %1.1d %2.2d %2.2d\n",i,
- idt[0],idt[1],idt[2],ido[0],ido[1],ido[2]);
- gt->GetTranslation(tt);
- go->GetTranslation(to);
- gt->GetAngles(rt);
- go->GetAngles(ro);
- t = kFALSE;
- for(i=0;i<3;i++) t = t&&tt[i]!=to[i];
- if(t) fprintf(fp,"%1.1d %2.2d %2.2d dTrans=%f %f %f drot=%f %f %f\n",
- idt[0],idt[1],idt[2],
- tt[0]-to[0],tt[1]-to[1],tt[2]-to[2],
- rt[0]-ro[0],rt[1]-ro[1],rt[2]-ro[2]);
- t = kFALSE;
- gt->GetMatrix(mt);
- go->GetMatrix(mo);
- for(i=0;i<3;i++)for(j=0;j<3;j++) t = mt[i][j] != mo[i][j];
- if(t){
- fprintf(fp,"%1.1d %2.2d %2.2d dfr= %e %e %e\n",
- idt[0],idt[1],idt[2],
- mt[0][0]-mo[0][0],mt[0][1]-mo[0][1],mt[0][2]-mo[0][2]);
- fprintf(fp," dfr= %e %e %e\n",
- mt[1][0]-mo[1][0],mt[1][1]-mo[1][1],mt[1][2]-mo[1][2]);
- fprintf(fp," dfr= %e %e %e\n",
- mt[2][0]-mo[2][0],mt[2][1]-mo[2][1],mt[2][2]-mo[2][2]);
- } // end if t
- } // end for i
- return;
+ // This function was primarily created for diagnostic reasons. It
+ // print to a file pointed to by the file pointer fp the difference
+ // between two AliITSgeom classes. The format of the file is basicly,
+ // define d? to be the difference between the same element of the two
+ // classes. For example dfrx = this->GetGeomMatrix(i)->frx
+ // - other->GetGeomMatrix(i)->frx.
+ // if(at least one of dfx0, dfy0, dfz0,dfrx,dfry,dfrz are non zero) then
+ // print layer ladder detector dfx0 dfy0 dfz0 dfrx dfry dfrz
+ // if(at least one of the 9 elements of dfr[] are non zero) then print
+ // layer ladder detector dfr[0] dfr[1] dfr[2]
+ // dfr[3] dfr[4] dfr[5]
+ // dfr[6] dfr[7] dfr[8]
+ // Only non zero values are printed to save space. The differences are
+ // typical written to a file because there are usually a lot of numbers
+ // printed out and it is usually easier to read them in some nice editor
+ // rather than zooming quickly past you on a screen. fprintf is used to
+ // do the printing. The fShapeIndex difference is not printed at this time.
+ // Inputs are:
+ // FILE *fp A file pointer to an opened file for writing in which
+ // the results of the comparison will be written.
+ // AliITSgeom *other The other AliITSgeom class to which this one is
+ // being compared.
+ // outputs are:
+ // none
+ Int_t i,j,idt[3],ido[3];
+ Double_t tt[3],to[3]; // translation
+ Double_t rt[3],ro[3]; // phi in radians
+ Double_t mt[3][3],mo[3][3]; // matrixes
+ AliITSgeomMatrix *gt,*go;
+ Bool_t t;
+
+ for(i=0;i<this->fNmodules;i++){
+ gt = this->GetGeomMatrix(i);
+ go = other->GetGeomMatrix(i);
+ gt->GetIndex(idt);
+ go->GetIndex(ido);
+ t = kFALSE;
+ for(i=0;i<3;i++) t = t&&idt[i]!=ido[i];
+ if(t) fprintf(fp,"%4.4d %1.1d %2.2d %2.2d %1.1d %2.2d %2.2d\n",i,
+ idt[0],idt[1],idt[2],ido[0],ido[1],ido[2]);
+ gt->GetTranslation(tt);
+ go->GetTranslation(to);
+ gt->GetAngles(rt);
+ go->GetAngles(ro);
+ t = kFALSE;
+ for(i=0;i<3;i++) t = t&&tt[i]!=to[i];
+ if(t) fprintf(fp,"%1.1d %2.2d %2.2d dTrans=%f %f %f drot=%f %f %f\n",
+ idt[0],idt[1],idt[2],
+ tt[0]-to[0],tt[1]-to[1],tt[2]-to[2],
+ rt[0]-ro[0],rt[1]-ro[1],rt[2]-ro[2]);
+ t = kFALSE;
+ gt->GetMatrix(mt);
+ go->GetMatrix(mo);
+ for(i=0;i<3;i++)for(j=0;j<3;j++) t = mt[i][j] != mo[i][j];
+ if(t){
+ fprintf(fp,"%1.1d %2.2d %2.2d dfr= %e %e %e\n",
+ idt[0],idt[1],idt[2],
+ mt[0][0]-mo[0][0],mt[0][1]-mo[0][1],mt[0][2]-mo[0][2]);
+ fprintf(fp," dfr= %e %e %e\n",
+ mt[1][0]-mo[1][0],mt[1][1]-mo[1][1],mt[1][2]-mo[1][2]);
+ fprintf(fp," dfr= %e %e %e\n",
+ mt[2][0]-mo[2][0],mt[2][1]-mo[2][1],mt[2][2]-mo[2][2]);
+ } // end if t
+ } // end for i
+ return;
}
-
-//___________________________________________________________________________
-void AliITSgeom::PrintData(FILE *fp,
- const Int_t lay,const Int_t lad,const Int_t det){
-////////////////////////////////////////////////////////////////////////
-// This function prints out the coordinate transformations for
-// the particular detector defined by layer, ladder, and detector
-// to the file pointed to by the File pointer fp. fprintf statements
-// are used to print out the numbers. The format is
-// layer ladder detector Trans= fx0 fy0 fz0 rot= frx fry frz Shape=fShapeIndex
-// dfr= fr[0] fr[1] fr[2]
-// dfr= fr[3] fr[4] fr[5]
-// dfr= fr[6] fr[7] fr[8]
-// By indicating which detector, some control over the information
-// is given to the user. The output it written to the file pointed
-// to by the file pointer fp. This can be set to stdout if you want.
-////////////////////////////////////////////////////////////////////////
- AliITSgeomMatrix *gt;
- Double_t t[3],r[3],m[3][3];
-
- gt = this->GetGeomMatrix(GetModuleIndex(lay,lad,det));
- gt->GetTranslation(t);
- gt->GetAngles(r);
- fprintf(fp,"%1.1d %2.2d %2.2d Trans=%f %f %f rot=%f %f %f Shape=%d\n",
- lay,lad,det,t[0],t[1],t[2],r[0],r[1],r[2],
- gt->GetDetectorIndex());
- gt->GetMatrix(m);
- fprintf(fp," dfr= %e %e %e\n",m[0][0],m[0][1],m[0][2]);
- fprintf(fp," dfr= %e %e %e\n",m[1][0],m[1][1],m[1][2]);
- fprintf(fp," dfr= %e %e %e\n",m[2][0],m[2][1],m[2][2]);
- return;
+//______________________________________________________________________
+void AliITSgeom::PrintData(FILE *fp,Int_t lay,Int_t lad,Int_t det){
+ // This function prints out the coordinate transformations for
+ // the particular detector defined by layer, ladder, and detector
+ // to the file pointed to by the File pointer fp. fprintf statements
+ // are used to print out the numbers. The format is
+ // layer ladder detector Trans= fx0 fy0 fz0 rot= frx fry frz
+ // Shape=fShapeIndex
+ // dfr= fr[0] fr[1] fr[2]
+ // dfr= fr[3] fr[4] fr[5]
+ // dfr= fr[6] fr[7] fr[8]
+ // By indicating which detector, some control over the information
+ // is given to the user. The output it written to the file pointed
+ // to by the file pointer fp. This can be set to stdout if you want.
+ // Inputs are:
+ // FILE *fp A file pointer to an opened file for writing in which
+ // the results of the comparison will be written.
+ // Int_t lay The layer number. Starting from 1.
+ // Int_t lad The ladder number. Starting from 1.
+ // Int_t det The detector number. Starting from 1.
+ // outputs are:
+ // none
+ AliITSgeomMatrix *gt;
+ Double_t t[3],r[3],m[3][3];
+
+ gt = this->GetGeomMatrix(GetModuleIndex(lay,lad,det));
+ gt->GetTranslation(t);
+ gt->GetAngles(r);
+ fprintf(fp,"%1.1d %2.2d %2.2d Trans=%f %f %f rot=%f %f %f Shape=%d\n",
+ lay,lad,det,t[0],t[1],t[2],r[0],r[1],r[2],
+ gt->GetDetectorIndex());
+ gt->GetMatrix(m);
+ fprintf(fp," dfr= %e %e %e\n",m[0][0],m[0][1],m[0][2]);
+ fprintf(fp," dfr= %e %e %e\n",m[1][0],m[1][1],m[1][2]);
+ fprintf(fp," dfr= %e %e %e\n",m[2][0],m[2][1],m[2][2]);
+ return;
}
-//___________________________________________________________________________
-ofstream & AliITSgeom::PrintGeom(ofstream &R__b){
-////////////////////////////////////////////////////////////////////////
-// Stream out an object of class AliITSgeom to standard output.
-////////////////////////////////////////////////////////////////////////
+//______________________________________________________________________
+ofstream & AliITSgeom::PrintGeom(ofstream &rb){
+ // Stream out an object of class AliITSgeom to standard output.
+ // Intputs are:
+ // ofstream &rb The output streaming buffer.
+ // Outputs are:
+ // ofstream &rb The output streaming buffer.
Int_t i;
- R__b.setf(ios::scientific);
- R__b << fTrans << " ";
- R__b << fNmodules << " ";
- R__b << fNlayers << " ";
- for(i=0;i<fNlayers;i++) R__b << fNlad[i] << " ";
- for(i=0;i<fNlayers;i++) R__b << fNdet[i] << "\n";
+ rb.setf(ios::scientific);
+ rb << fTrans << " ";
+ rb << fNmodules << " ";
+ rb << fNlayers << " ";
+ for(i=0;i<fNlayers;i++) rb << fNlad[i] << " ";
+ for(i=0;i<fNlayers;i++) rb << fNdet[i] << "\n";
for(i=0;i<fNmodules;i++) {
- R__b <<setprecision(16) << *(GetGeomMatrix(i)) << "\n";
+ rb <<setprecision(16) << *(GetGeomMatrix(i)) << "\n";
} // end for i
- return R__b;
+ rb << fShape->GetEntries()<<endl;
+ for(i=0;i<fShape->GetEntries();i++) if(fShape->At(i)!=0) switch (i){
+ case kSPD:
+ rb << kSPD <<","<< (AliITSgeomSPD*)(fShape->At(kSPD));
+ break;
+ case kSDD:
+ rb << kSDD <<","<< (AliITSgeomSDD*)(fShape->At(kSDD));
+ break;
+ case kSSD:
+ rb << kSSD <<","<< (AliITSgeomSSD*)(fShape->At(kSSD));
+ break;
+ case kSSDp:
+ rb << kSSDp <<","<< (AliITSgeomSSD*)(fShape->At(kSSDp));
+ break;
+ case kSDDp:
+ rb << kSDDp <<","<< (AliITSgeomSDD*)(fShape->At(kSDDp));
+ break;
+ } // end for i / switch
+ return rb;
}
-//___________________________________________________________________________
-ifstream & AliITSgeom::ReadGeom(ifstream &R__b){
-////////////////////////////////////////////////////////////////////////
-// Stream in an object of class AliITSgeom from standard input.
-////////////////////////////////////////////////////////////////////////
- Int_t i;
-
- fNlad = new Int_t[fNlayers];
- fNdet = new Int_t[fNlayers];
- if(fGm!=0){
- for(i=0;i<fNmodules;i++) delete GetGeomMatrix(i);
- delete fGm;
- } // end if fGm!=0
-
- R__b >> fTrans >> fNmodules >> fNlayers;
- fNlad = new Int_t[fNlayers];
- fNdet = new Int_t[fNlayers];
- for(i=0;i<fNlayers;i++) R__b >> fNlad[i];
- for(i=0;i<fNlayers;i++) R__b >> fNdet[i];
- fGm = new TObjArray(fNmodules,0);
- for(i=0;i<fNmodules;i++){
- fGm->AddAt(new AliITSgeomMatrix,i);
- R__b >> *(GetGeomMatrix(i));
- } // end for i
- return R__b;
+//______________________________________________________________________
+ifstream & AliITSgeom::ReadGeom(ifstream &rb){
+ // Stream in an object of class AliITSgeom from standard input.
+ // Intputs are:
+ // ifstream &rb The input streaming buffer.
+ // Outputs are:
+ // ifstream &rb The input streaming buffer.
+ Int_t i,j;
+
+ fNlad = new Int_t[fNlayers];
+ fNdet = new Int_t[fNlayers];
+ if(fGm!=0){
+ for(i=0;i<fNmodules;i++) delete GetGeomMatrix(i);
+ delete fGm;
+ } // end if fGm!=0
+
+ rb >> fTrans >> fNmodules >> fNlayers;
+ fNlad = new Int_t[fNlayers];
+ fNdet = new Int_t[fNlayers];
+ for(i=0;i<fNlayers;i++) rb >> fNlad[i];
+ for(i=0;i<fNlayers;i++) rb >> fNdet[i];
+ fGm = new TObjArray(fNmodules,0);
+ for(i=0;i<fNmodules;i++){
+ fGm->AddAt(new AliITSgeomMatrix,i);
+ rb >> *(GetGeomMatrix(i));
+ } // end for i
+ rb >> i;
+ fShape = new TObjArray(i);
+ for(i=0;i<fShape->GetEntries();i++) {
+ rb >> j;
+ switch (j){
+ case kSPD:{
+ AliITSgeomSPD *s = new AliITSgeomSPD();
+ rb >> *s;
+ fShape->AddAt(s,kSPD);}
+ break;
+ case kSDD:{
+ AliITSgeomSDD *s = new AliITSgeomSDD();
+ rb >> *s;
+ fShape->AddAt(s,kSDD);}
+ break;
+ case kSSD:{
+ AliITSgeomSSD *s = new AliITSgeomSSD();
+ rb >> *s;
+ fShape->AddAt(s,kSSD);}
+ break;
+ case kSSDp:{
+ AliITSgeomSSD *s = new AliITSgeomSSD();
+ rb >> *s;
+ fShape->AddAt(s,kSSDp);}
+ break;
+ case kSDDp:{
+ AliITSgeomSDD *s = new AliITSgeomSDD();
+ rb >> *s;
+ fShape->AddAt(s,kSDDp);}
+ break;
+ } // end switch
+ } // end for i
+ return rb;
}
-//___________________________________________________________________________
-
//______________________________________________________________________
// The following routines modify the transformation of "this"
// geometry transformations in a number of different ways.
//______________________________________________________________________
void AliITSgeom::GlobalChange(const Float_t *tran,const Float_t *rot){
-////////////////////////////////////////////////////////////////////////
-// This function performs a Cartesian translation and rotation of
-// the full ITS from its default position by an amount determined by
-// the three element arrays dtranslation and drotation. If every element
-// of dtranslation and drotation are zero then there is no change made
-// the geometry. The change is global in that the exact same translation
-// and rotation is done to every detector element in the exact same way.
-// The units of the translation are those of the Monte Carlo, usually cm,
-// and those of the rotation are in radians. The elements of dtranslation
-// are dtranslation[0] = x, dtranslation[1] = y, and dtranslation[2] = z.
-// The elements of drotation are drotation[0] = rx, drotation[1] = ry, and
-// drotation[2] = rz. A change in x will move the hole ITS in the ALICE
-// global x direction, the same for a change in y. A change in z will
-// result in a translation of the ITS as a hole up or down the beam line.
-// A change in the angles will result in the inclination of the ITS with
-// respect to the beam line, except for an effective rotation about the
-// beam axis which will just rotate the ITS as a hole about the beam axis.
-////////////////////////////////////////////////////////////////////////
- Int_t i,j;
- Double_t t[3],r[3];
- AliITSgeomMatrix *g;
-
- fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true.
- for(i=0;i<fNmodules;i++){
- g = this->GetGeomMatrix(i);
- g->GetTranslation(t);
- g->GetAngles(r);
- for(j=0;j<3;j++){
- t[j] += tran[j];
- r[j] += rot[j];
- } // end for j
- g->SetTranslation(t);
- g->SetAngles(r);
- } // end for i
- return;
+ // This function performs a Cartesian translation and rotation of
+ // the full ITS from its default position by an amount determined by
+ // the three element arrays tran and rot. If every element
+ // of tran and rot are zero then there is no change made
+ // the geometry. The change is global in that the exact same translation
+ // and rotation is done to every detector element in the exact same way.
+ // The units of the translation are those of the Monte Carlo, usually cm,
+ // and those of the rotation are in radians. The elements of tran
+ // are tran[0] = x, tran[1] = y, and tran[2] = z.
+ // The elements of rot are rot[0] = rx, rot[1] = ry, and
+ // rot[2] = rz. A change in x will move the hole ITS in the ALICE
+ // global x direction, the same for a change in y. A change in z will
+ // result in a translation of the ITS as a hole up or down the beam line.
+ // A change in the angles will result in the inclination of the ITS with
+ // respect to the beam line, except for an effective rotation about the
+ // beam axis which will just rotate the ITS as a hole about the beam axis.
+ // Intputs are:
+ // Float_t *tran A 3 element array representing the global translations.
+ // the elements are x,y,z in cm.
+ // Float_t *rot A 3 element array representing the global rotation
+ // angles about the three axis x,y,z in radians
+ // Outputs are:
+ // none.
+ Int_t i,j;
+ Double_t t[3],r[3];
+ AliITSgeomMatrix *g;
+
+ fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true.
+ for(i=0;i<fNmodules;i++){
+ g = this->GetGeomMatrix(i);
+ g->GetTranslation(t);
+ g->GetAngles(r);
+ for(j=0;j<3;j++){
+ t[j] += tran[j];
+ r[j] += rot[j];
+ } // end for j
+ g->SetTranslation(t);
+ g->SetAngles(r);
+ } // end for i
+ return;
}
-//___________________________________________________________________________
-void AliITSgeom::GlobalCylindericalChange(const Float_t *tran,const Float_t *rot){
-////////////////////////////////////////////////////////////////////////
-// This function performs a cylindrical translation and rotation of
-// each ITS element by a fixed about in radius, rphi, and z from its
-// default position by an amount determined by the three element arrays
-// dtranslation and drotation. If every element of dtranslation and
-// drotation are zero then there is no change made the geometry. The
-// change is global in that the exact same distance change in translation
-// and rotation is done to every detector element in the exact same way.
-// The units of the translation are those of the Monte Carlo, usually cm,
-// and those of the rotation are in radians. The elements of dtranslation
-// are dtranslation[0] = r, dtranslation[1] = rphi, and dtranslation[2] = z.
-// The elements of drotation are drotation[0] = rx, drotation[1] = ry, and
-// drotation[2] = rz. A change in r will results in the increase of the
-// radius of each layer by the same about. A change in rphi will results in
-// the rotation of each layer by a different angle but by the same
-// circumferential distance. A change in z will result in a translation
-// of the ITS as a hole up or down the beam line. A change in the angles
-// will result in the inclination of the ITS with respect to the beam
-// line, except for an effective rotation about the beam axis which will
-// just rotate the ITS as a hole about the beam axis.
-////////////////////////////////////////////////////////////////////////
- Int_t i,j;
- Double_t t[3],ro[3],r,r0,phi,rphi;
- AliITSgeomMatrix *g;
-
- fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true.
- for(i=0;i<fNmodules;i++){
- g = this->GetGeomMatrix(i);
- g->GetTranslation(t);
- g->GetAngles(ro);
- r = r0= TMath::Hypot(t[1],t[0]);
- phi = TMath::ATan2(t[1],t[0]);
- rphi = r0*phi;
- r += tran[0];
- rphi += tran[1];
- phi = rphi/r0;
- t[0] = r*TMath::Cos(phi);
- t[1] = r*TMath::Sin(phi);
- t[2] += tran[2];
- for(j=0;j<3;j++){
- ro[j] += rot[j];
- } // end for j
- g->SetTranslation(t);
- g->SetAngles(ro);
- } // end for i
- return;
+//______________________________________________________________________
+void AliITSgeom::GlobalCylindericalChange(const Float_t *tran,
+ const Float_t *rot){
+ // This function performs a cylindrical translation and rotation of
+ // each ITS element by a fixed about in radius, rphi, and z from its
+ // default position by an amount determined by the three element arrays
+ // tran and rot. If every element of tran and
+ // rot are zero then there is no change made the geometry. The
+ // change is global in that the exact same distance change in translation
+ // and rotation is done to every detector element in the exact same way.
+ // The units of the translation are those of the Monte Carlo, usually cm,
+ // and those of the rotation are in radians. The elements of tran
+ // are tran[0] = r, tran[1] = rphi, and tran[2] = z.
+ // The elements of rot are rot[0] = rx, rot[1] = ry, and
+ // rot[2] = rz. A change in r will results in the increase of the
+ // radius of each layer by the same about. A change in rphi will results in
+ // the rotation of each layer by a different angle but by the same
+ // circumferential distance. A change in z will result in a translation
+ // of the ITS as a hole up or down the beam line. A change in the angles
+ // will result in the inclination of the ITS with respect to the beam
+ // line, except for an effective rotation about the beam axis which will
+ // just rotate the ITS as a hole about the beam axis.
+ // Intputs are:
+ // Float_t *tran A 3 element array representing the global translations.
+ // the elements are r,theta,z in cm/radians.
+ // Float_t *rot A 3 element array representing the global rotation
+ // angles about the three axis x,y,z in radians
+ // Outputs are:
+ // none.
+ Int_t i,j;
+ Double_t t[3],ro[3],r,r0,phi,rphi;
+ AliITSgeomMatrix *g;
+
+ fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true.
+ for(i=0;i<fNmodules;i++){
+ g = this->GetGeomMatrix(i);
+ g->GetTranslation(t);
+ g->GetAngles(ro);
+ r = r0= TMath::Hypot(t[1],t[0]);
+ phi = TMath::ATan2(t[1],t[0]);
+ rphi = r0*phi;
+ r += tran[0];
+ rphi += tran[1];
+ phi = rphi/r0;
+ t[0] = r*TMath::Cos(phi);
+ t[1] = r*TMath::Sin(phi);
+ t[2] += tran[2];
+ for(j=0;j<3;j++){
+ ro[j] += rot[j];
+ } // end for j
+ g->SetTranslation(t);
+ g->SetAngles(ro);
+ } // end for i
+ return;
}
-//___________________________________________________________________________
+//______________________________________________________________________
void AliITSgeom::RandomChange(const Float_t *stran,const Float_t *srot){
-////////////////////////////////////////////////////////////////////////
-// This function performs a Gaussian random displacement and/or
-// rotation about the present global position of each active
-// volume/detector of the ITS. The sigma of the random displacement
-// is determined by the three element array stran, for the
-// x y and z translations, and the three element array srot,
-// for the three rotation about the axis x y and z.
-////////////////////////////////////////////////////////////////////////
- Int_t i,j;
- Double_t t[3],r[3];
- //MI TRandom ran;
- AliITSgeomMatrix *g;
-
- fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true.
- for(i=0;i<fNmodules;i++){
- g = this->GetGeomMatrix(i);
- g->GetTranslation(t);
- g->GetAngles(r);
- for(j=0;j<3;j++){
- t[j] += gRandom->Gaus(0.0,stran[j]);
- r[j] += gRandom->Gaus(0.0, srot[j]);
- } // end for j
- g->SetTranslation(t);
- g->SetAngles(r);
- } // end for i
- return;
+ // This function performs a Gaussian random displacement and/or
+ // rotation about the present global position of each active
+ // volume/detector of the ITS. The sigma of the random displacement
+ // is determined by the three element array stran, for the
+ // x y and z translations, and the three element array srot,
+ // for the three rotation about the axis x y and z.
+ // Intputs are:
+ // Float_t *stran A 3 element array representing the global translations
+ // variances. The elements are x,y,z in cm.
+ // Float_t *srot A 3 element array representing the global rotation
+ // angles variances about the three axis x,y,z in radians.
+ // Outputs are:
+ // none.
+ Int_t i,j;
+ Double_t t[3],r[3];
+ AliITSgeomMatrix *g;
+
+ fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true.
+ for(i=0;i<fNmodules;i++){
+ g = this->GetGeomMatrix(i);
+ g->GetTranslation(t);
+ g->GetAngles(r);
+ for(j=0;j<3;j++){
+ t[j] += gRandom->Gaus(0.0,stran[j]);
+ r[j] += gRandom->Gaus(0.0, srot[j]);
+ } // end for j
+ g->SetTranslation(t);
+ g->SetAngles(r);
+ } // end for i
+ return;
}
-//___________________________________________________________________________
+//______________________________________________________________________
void AliITSgeom::RandomCylindericalChange(const Float_t *stran,
const Float_t *srot){
-////////////////////////////////////////////////////////////////////////
-// This function performs a Gaussian random displacement and/or
-// rotation about the present global position of each active
-// volume/detector of the ITS. The sigma of the random displacement
-// is determined by the three element array stran, for the
-// r rphi and z translations, and the three element array srot,
-// for the three rotation about the axis x y and z. This random change
-// in detector position allow for the simulation of a random uncertainty
-// in the detector positions of the ITS.
-////////////////////////////////////////////////////////////////////////
- Int_t i,j;
- Double_t t[3],ro[3],r,r0,phi,rphi;
- TRandom ran;
- AliITSgeomMatrix *g;
-
- fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true.
- for(i=0;i<fNmodules;i++){
- g = this->GetGeomMatrix(i);
- g->GetTranslation(t);
- g->GetAngles(ro);
- r = r0= TMath::Hypot(t[1],t[0]);
- phi = TMath::ATan2(t[1],t[0]);
- rphi = r0*phi;
- r += ran.Gaus(0.0,stran[0]);
- rphi += ran.Gaus(0.0,stran[1]);
- phi = rphi/r0;
- t[0] = r*TMath::Cos(phi);
- t[1] = r*TMath::Sin(phi);
- t[2] += ran.Gaus(0.0,stran[2]);
- for(j=0;j<3;j++){
- ro[j] += ran.Gaus(0.0, srot[j]);
- } // end for j
- g->SetTranslation(t);
- g->SetAngles(ro);
- } // end for i
- return;
+ // This function performs a Gaussian random displacement and/or
+ // rotation about the present global position of each active
+ // volume/detector of the ITS. The sigma of the random displacement
+ // is determined by the three element array stran, for the
+ // r rphi and z translations, and the three element array srot,
+ // for the three rotation about the axis x y and z. This random change
+ // in detector position allow for the simulation of a random uncertainty
+ // in the detector positions of the ITS.
+ // Intputs are:
+ // Float_t *stran A 3 element array representing the global translations
+ // variances. The elements are r,theta,z in cm/readians.
+ // Float_t *srot A 3 element array representing the global rotation
+ // angles variances about the three axis x,y,z in radians.
+ // Outputs are:
+ // none.
+ Int_t i,j;
+ Double_t t[3],ro[3],r,r0,phi,rphi;
+ TRandom ran;
+ AliITSgeomMatrix *g;
+
+ fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true.
+ for(i=0;i<fNmodules;i++){
+ g = this->GetGeomMatrix(i);
+ g->GetTranslation(t);
+ g->GetAngles(ro);
+ r = r0= TMath::Hypot(t[1],t[0]);
+ phi = TMath::ATan2(t[1],t[0]);
+ rphi = r0*phi;
+ r += ran.Gaus(0.0,stran[0]);
+ rphi += ran.Gaus(0.0,stran[1]);
+ phi = rphi/r0;
+ t[0] = r*TMath::Cos(phi);
+ t[1] = r*TMath::Sin(phi);
+ t[2] += ran.Gaus(0.0,stran[2]);
+ for(j=0;j<3;j++){
+ ro[j] += ran.Gaus(0.0, srot[j]);
+ } // end for j
+ g->SetTranslation(t);
+ g->SetAngles(ro);
+ } // end for i
+ return;
}
//______________________________________________________________________
void AliITSgeom::GeantToTracking(AliITSgeom &source){
-/////////////////////////////////////////////////////////////////////////
-// Copy the geometry data but change it to go between the ALICE
-// Global coordinate system to that used by the ITS tracking. A slightly
-// different coordinate system is used when tracking. This coordinate
-// system is only relevant when the geometry represents the cylindrical
-// ALICE ITS geometry. For tracking the Z axis is left alone but X-> -Y
-// and Y-> X such that X always points out of the ITS cylinder for every
-// layer including layer 1 (where the detectors are mounted upside down).
-//Begin_Html
-/*
-<img src="picts/ITS/AliITSgeomMatrix_T1.gif">
-*/
-//End_Html
-////////////////////////////////////////////////////////////////////////
- Int_t i,j,k,l,id[3];
- Double_t R0[3][3],R1[3][3];
- Double_t A0[3][3] = {{0.,+1.,0.},{-1.,0.,0.},{0.,0.,+1.}};
- Double_t A1[3][3] = {{0.,-1.,0.},{+1.,0.,0.},{0.,0.,+1.}};
-
- *this = source; // copy everything
- for(i=0;i<GetIndexMax();i++){
- GetGeomMatrix(i)->GetIndex(id);
- GetGeomMatrix(i)->GetMatrix(R0);
- if(id[0]==1){ // Layer 1 is treated different from the others.
- for(j=0;j<3;j++) for(k=0;k<3;k++){
- R1[j][k] = 0.;
- for(l=0;l<3;l++) R1[j][k] += A0[j][l]*R0[l][k];
- } // end for j,k
- }else{
- for(j=0;j<3;j++) for(k=0;k<3;k++){
- R1[j][k] = 0.;
- for(l=0;l<3;l++) R1[j][k] += A1[j][l]*R0[l][k];
- } // end for j,k
- } // end if
- GetGeomMatrix(i)->SetMatrix(R1);
- } // end for i
- this->fTrans = (this->fTrans && 0xfffe) + 1; // set bit 0 true.
- return;
+ // Copy the geometry data but change it to go between the ALICE
+ // Global coordinate system to that used by the ITS tracking. A slightly
+ // different coordinate system is used when tracking. This coordinate
+ // system is only relevant when the geometry represents the cylindrical
+ // ALICE ITS geometry. For tracking the Z axis is left alone but X-> -Y
+ // and Y-> X such that X always points out of the ITS cylinder for every
+ // layer including layer 1 (where the detectors are mounted upside down).
+ // Inputs are:
+ // AliITSgeom &source The AliITSgeom class with which to make this
+ // a copy of.
+ // Outputs are:
+ // return *this The a new copy of source.
+ //Begin_Html
+ /*
+ <img src="picts/ITS/AliITSgeomMatrix_T1.gif">
+ */
+ //End_Html
+ Int_t i,j,k,l,id[3];
+ Double_t r0[3][3],r1[3][3];
+ Double_t a0[3][3] = {{0.,+1.,0.},{-1.,0.,0.},{0.,0.,+1.}};
+ Double_t a1[3][3] = {{0.,-1.,0.},{+1.,0.,0.},{0.,0.,+1.}};
+
+ *this = source; // copy everything
+ for(i=0;i<GetIndexMax();i++){
+ GetGeomMatrix(i)->GetIndex(id);
+ GetGeomMatrix(i)->GetMatrix(r0);
+ if(id[0]==1){ // Layer 1 is treated different from the others.
+ for(j=0;j<3;j++) for(k=0;k<3;k++){
+ r1[j][k] = 0.;
+ for(l=0;l<3;l++) r1[j][k] += a0[j][l]*r0[l][k];
+ } // end for j,k
+ }else{
+ for(j=0;j<3;j++) for(k=0;k<3;k++){
+ r1[j][k] = 0.;
+ for(l=0;l<3;l++) r1[j][k] += a1[j][l]*r0[l][k];
+ } // end for j,k
+ } // end if
+ GetGeomMatrix(i)->SetMatrix(r1);
+ } // end for i
+ this->fTrans = (this->fTrans && 0xfffe) + 1; // set bit 0 true.
+ return;
}
//______________________________________________________________________
-Int_t AliITSgeom::GetNearest(const Double_t g[3],const Int_t lay){
-////////////////////////////////////////////////////////////////////////
-// Finds the Detector (Module) that is nearest the point g [cm] in
-// ALICE Global coordinates. If layer !=0 then the search is restricted
-// to Detectors (Modules) in that particular layer.
-////////////////////////////////////////////////////////////////////////
- Int_t i,l,a,e,in=0;
- Double_t d,dn=1.0e10;
- Bool_t t=lay!=0; // skip if lay = 0 default value check all layers.
+Int_t AliITSgeom::GetNearest(const Double_t g[3],Int_t lay){
+ // Finds the Detector (Module) that is nearest the point g [cm] in
+ // ALICE Global coordinates. If layer !=0 then the search is restricted
+ // to Detectors (Modules) in that particular layer.
+ // Inputs are:
+ // Double_t g[3] The ALICE Cartesean global coordinate from which the
+ // distance is to be calculated with.
+ // Int_t lay The layer to restrict the search to. If layer=0 then
+ // all layers are searched. Default is lay=0.
+ // Outputs are:
+ // return The module number representing the nearest module.
+ Int_t i,l,a,e,in=0;
+ Double_t d,dn=1.0e10;
+ Bool_t t=lay!=0; // skip if lay = 0 default value check all layers.
- for(i=0;i<fNmodules;i++){
- if(t){GetModuleId(i,l,a,e);if(l!=lay) continue;}
- if((d=GetGeomMatrix(i)->Distance2(g))<dn){
- dn = d;
- in = i;
- } // end if
- } // end for i
- return in;
+ for(i=0;i<fNmodules;i++){
+ if(t){GetModuleId(i,l,a,e);if(l!=lay) continue;}
+ if((d=GetGeomMatrix(i)->Distance2(g))<dn){
+ dn = d;
+ in = i;
+ } // end if
+ } // end for i
+ return in;
}
//______________________________________________________________________
-void AliITSgeom::GetNearest27(const Double_t g[3],Int_t n[27],const Int_t lay){
-////////////////////////////////////////////////////////////////////////
-// Finds 27 Detectors (Modules) that are nearest the point g [cm] in
-// ALICE Global coordinates. If layer !=0 then the search is restricted
-// to Detectors (Modules) in that particular layer. The number 27 comes
-// from including the nearest detector and all those around it (up, down,
-// left, right, forwards, backwards, and the corners).
-////////////////////////////////////////////////////////////////////////
- Int_t i,l,a,e,in[27]={0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,};
- Double_t d,dn[27]={1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,
- 1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,
- 1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,
- 1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,
- 1.0e10,1.0e10,1.0e10};
- Bool_t t=(lay!=0); // skip if lay = 0 default value check all layers.
+void AliITSgeom::GetNearest27(const Double_t g[3],Int_t n[27],Int_t lay){
+ // Finds 27 Detectors (Modules) that are nearest the point g [cm] in
+ // ALICE Global coordinates. If layer !=0 then the search is restricted
+ // to Detectors (Modules) in that particular layer. The number 27 comes
+ // from including the nearest detector and all those around it (up, down,
+ // left, right, forwards, backwards, and the corners).
+ // Inputs are:
+ // Double_t g[3] The ALICE Cartesean global coordinate from which the
+ // distance is to be calculated with.
+ // Int_t lay The layer to restrict the search to. If layer=0 then
+ // all layers are searched. Default is lay=0.
+ // Outputs are:
+ // Int_t n[27] The module number representing the nearest 27 modules
+ // in order.
+ Int_t i,l,a,e,in[27]={0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,
+ 0,0,0,0,0,0,0,0,0,};
+ Double_t d,dn[27]={1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,
+ 1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,
+ 1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,
+ 1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,
+ 1.0e10,1.0e10,1.0e10};
+ Bool_t t=(lay!=0); // skip if lay = 0 default value check all layers.
- for(i=0;i<fNmodules;i++){
- if(t){GetModuleId(i,l,a,e);if(l!=lay) continue;}
- for(a=0;a<27;a++){
- d = GetGeomMatrix(i)->Distance2(g);
- if(d<dn[a]){
- for(e=26;e>a;e--){dn[e] = dn[e-1];in[e] = in[e-1];}
- dn[a] = d; in[a] = i;
- } // end if d<dn[i]
- } // end for a
- } // end for i
- for(i=0;i<27;i++) n[i] = in[i];
+ for(i=0;i<fNmodules;i++){
+ if(t){GetModuleId(i,l,a,e);if(l!=lay) continue;}
+ for(a=0;a<27;a++){
+ d = GetGeomMatrix(i)->Distance2(g);
+ if(d<dn[a]){
+ for(e=26;e>a;e--){dn[e] = dn[e-1];in[e] = in[e-1];}
+ dn[a] = d; in[a] = i;
+ } // end if d<dn[i]
+ } // end for a
+ } // end for i
+ for(i=0;i<27;i++) n[i] = in[i];
}
//----------------------------------------------------------------------
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff