// By: Bjorn S. Nilsen //
// version: 0.0.1 //
// Updated May 27 1999. //
-// Added Cylindrical random and global based changes. //
-// Added function PrintComparison. //
+// Added Cylindrical random and global based changes. //
+// //
+// Modified and added functions Feb. 7 2006 //
///////////////////////////////////////////////////////////////////////
//
// Data Members:
//
+// TString fVersion
+// Transformation version.
+// Int_t fTrans
+// Flag to keep track of which transformation
+// Int_t fNmodules
+// The total number of modules
// Int_t fNlayers
// The number of ITS layers for this geometry. By default this
// is 6, but can be modified by the creator function if there are
// more layers defined.
//
-// Int_t *fNlad
+// TArrayI fNlad
// A pointer to an array fNlayers long containing the number of
// ladders for each layer. This array is typically created and filled
// by the AliITSgeom creator function.
//
-// Int_t *fNdet
+// TArrayI fNdet
// A pointer to an array fNlayers long containing the number of
// active detector volumes for each ladder. This array is typically
// created and filled by the AliITSgeom creator function.
//
-// AliITSgeomMatrix *fGm
+// TObjArray fGm containing objects of type AliITSgeomMatrix
// A pointer to an array of AliITSgeomMatrix classes. One element
// per module (detector) in the ITS. AliITSgeomMatrix basicly contains
// all of the necessary information about the detector and it's coordinate
// transformations.
//
-// TObjArray *fShape
-// A pointer to an array of TObjects containing the detailed shape
-// information for each type of detector used in the ITS. For example
-// I have created AliITSgeomSPD, AliITSgeomSDD, and AliITSgeomSSD as
-// example structures, derived from TObjects, to hold the detector
-// information. I would recommend that one element in each of these
-// structures, that which describes the shape of the active volume,
-// be one of the ROOT classes derived from TShape. In this way it would
-// be easy to have the display program display the correct active
-// ITS volumes. See the example classes AliITSgeomSPD, AliITSgeomSDD,
-// and AliITSgeomSSD for a more detailed example.
////////////////////////////////////////////////////////////////////////
#include <Riostream.h>
+#include <ctype.h>
#include <TRandom.h>
#include <TSystem.h>
+#include <TArrayI.h>
#include "AliITSgeom.h"
-#include "AliITSgeomSDD.h"
-#include "AliITSgeomSPD.h"
-#include "AliITSgeomSSD.h"
#include "AliLog.h"
ClassImp(AliITSgeom)
//______________________________________________________________________
-AliITSgeom::AliITSgeom(){
+AliITSgeom::AliITSgeom():
+TObject(),
+fVersion("GEANT"),// Transformation version.
+fTrans(0), // Flag to keep track of which transformation
+fNmodules(0), // The total number of modules
+fNlayers(0), // The number of layers.
+fNlad(), //[] Array of the number of ladders/layer(layer)
+fNdet(), //[] Array of the number of detector/ladder(layer)
+fGm(0,0) // Structure of translation. and rotation.
+{
// The default constructor for the AliITSgeom class. It, by default,
// sets fNlayers to zero and zeros all pointers.
// Do not allocate anything zero everything.
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // a zeroed AliITSgeom object.
- fTrans = 0; // standard GEANT global/local coordinate system.
- fNlayers = 0;
- fNlad = 0;
- fNdet = 0;
- fGm = 0;
- fShape = 0;
- strcpy(fVersion,"test");
+ fGm.SetOwner(kTRUE);
return;
}
+
//______________________________________________________________________
-AliITSgeom::AliITSgeom(Int_t itype,Int_t nlayers,Int_t *nlads,Int_t *ndets,
- Int_t mods){
+AliITSgeom::AliITSgeom(Int_t itype,Int_t nlayers,const Int_t *nlads,
+ const Int_t *ndets,Int_t mods):
+TObject(),
+fVersion("GEANT"), // Transformation version.
+fTrans(itype), // Flag to keep track of which transformation
+fNmodules(mods), // The total number of modules
+fNlayers(nlayers), // The number of layers.
+fNlad(nlayers,nlads),//[] Array of the number of ladders/layer(layer)
+fNdet(nlayers,ndets),//[] Array of the number of detector/ladder(layer)
+fGm(mods,0) // Structure of translation. and rotation.
+{
// 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.
+ // 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. Typically the sum of all the
+ // detectors on every layer and ladder.
// Outputs:
- // none
- Int_t i;
+ // none
+ // Return:
+ // A properly inilized AliITSgeom object.
- fTrans = itype;
- fNlayers = nlayers;
- fNlad = new Int_t[nlayers];
- fNdet = new Int_t[nlayers];
- for(i=0;i<nlayers;i++){fNlad[i] = nlads[i];fNdet[i] = ndets[i];}
- fNmodules = mods;
- fGm = new TObjArray(mods,0);
- fShape = new TObjArray(5); // default value
- for(i=0;i<5;i++) fShape->AddAt(0,i);
- strcpy(fVersion,"test");
+ fGm.SetOwner(kTRUE);
+ return;
+}
+//______________________________________________________________________
+void AliITSgeom::Init(Int_t itype,Int_t nlayers,const Int_t *nlads,
+ const Int_t *ndets,Int_t mods){
+ // A simple Inilizer 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. Typically the sum of all the
+ // detectors on every layer and ladder.
+ // Outputs:
+ // none
+ // Return:
+ // A properly inilized AliITSgeom object.
+
+ fVersion = "GEANT"; // Transformation version.
+ fTrans = itype; // Flag to keep track of which transformation
+ fNmodules = mods; // The total number of modules
+ fNlayers = nlayers; // The number of layers.
+ fNlad.Set(nlayers,nlads);//[] Array of the number of ladders/layer(layer)
+ fNdet.Set(nlayers,ndets);//[] Array of the number of detector/ladder(layer)
+ fGm.Clear();
+ fGm.Expand(mods); // Structure of translation. and rotation.
+ fGm.SetOwner(kTRUE);
return;
}
//______________________________________________________________________
-void AliITSgeom::CreatMatrix(Int_t mod,Int_t lay,Int_t lad,Int_t det,
- AliITSDetector idet,const Double_t tran[3],
- const Double_t rot[10]){
+void AliITSgeom::CreateMatrix(Int_t mod,Int_t lay,Int_t lad,Int_t det,
+ 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].
*/
+ // Inputs:
+ // 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:
+ // none
+ // Return:
+ // none.
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}};
- if(fGm->At(mod)!=0) delete fGm->At(mod);
+ if(mod<0||mod>=fGm.GetSize()){
+ Error("CreateMatrix","mod=%d is out of bounds max value=%d",mod,
+ fGm.GetSize());
+ return;
+ } // end if
+ delete fGm.At(mod);
id[0] = lay; id[1] = lad; id[2] = det;
if(rot[9]!=0.0) { // null rotation
- r[0][0] = rot[0]; r[0][1] = rot[1]; r[0][2] = rot[2];
- r[1][0] = rot[3]; r[1][1] = rot[4]; r[1][2] = rot[5];
- r[2][0] = rot[6]; r[2][1] = rot[7]; r[2][2] = rot[8];
+ r[0][0] = rot[0]; r[0][1] = rot[1]; r[0][2] = rot[2];
+ r[1][0] = rot[3]; r[1][1] = rot[4]; r[1][2] = rot[5];
+ r[2][0] = rot[6]; r[2][1] = rot[7]; r[2][2] = rot[8];
} // end if
- fGm->AddAt(new AliITSgeomMatrix(idet,id,r,tran),mod);
+ fGm.AddAt(new AliITSgeomMatrix(idet,id,r,tran),mod);
}
//______________________________________________________________________
AliITSgeom::~AliITSgeom(){
// 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);
- fGm->Delete();
- delete fGm;
- } // end if fGm!=0
- if(fNlad!=0) delete[] fNlad;
- if(fNdet!=0) delete[] fNdet;
- fNlayers = 0;
- fNlad = 0;
- fNdet = 0;
- fGm = 0;
- return;
-}
-//______________________________________________________________________
-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=0;
- AliITSgeomSDD *sdd=0;
- AliITSgeomSSD *ssd=0;
- AliITSgeomMatrix *m=0;
- ifstream *fp=0;
- char *filtmp=0;
-
- filtmp = gSystem->ExpandPathName(filename);
- 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=='!') {while(fp->get(c)) if(c=='\n') break; continue;}
- if(c=='/'){
- fp->get(c);{
- if(c=='/') {while(fp->get(c)) if(c=='\n') break; continue;}
- if(c=='*'){
- NotYet:
- while(fp->get(c)) if(c=='*') break;
- fp->get(c);{
- if(c=='/') continue;
- goto NotYet;
- } //
- } // end if c=='*'
- } // end if second /
- } // end if first /
- fp->putback(c);
- *fp >> cmd;
- for(i=0;i<ncmd;i++) if(strcmp(cmd,cmda[i])==0) break;
- switch (i){
- case 0: // Version
- *fp >> fVersion;
- break;
- case 1: // fTrans
- *fp >> fTrans;
- break;
- case 2: // fNModules
- *fp >> fNmodules;
- if(fGm!=0){
- for(j=0;j<fGm->GetEntriesFast();j++) delete fGm->At(j);
- delete fGm;
- } // end if
- fGm = new TObjArray(fNmodules,0);
- break;
- case 3: // fNlayers
- *fp >> fNlayers;
- if(fNlad!=0) delete fNlad;
- if(fNdet!=0) delete fNdet;
- fNlad = new Int_t[fNlayers];
- fNdet = new Int_t[fNlayers];
- break;
- case 4: // fNladers
- for(j=0;j<fNlayers;j++) *fp >> fNlad[j];
- break;
- case 5: // fNdetectors
- for(j=0;j<fNlayers;j++) *fp >> fNdet[j];
- break;
- case 6: // fNDetectorTypes
- *fp >> lNdetTypes;
- if(fShape!=0){
- for(j=0;j<fShape->GetEntriesFast();j++) delete fShape->At(j);
- delete fShape;
- } // end if
- fShape = new TObjArray(lNdetTypes,0);
- break;
- case 7: // fShape
- *fp >> ldet;
- if(fShape==0) fShape = new TObjArray(5,0);
- switch (ldet){
- case kSPD :
- spd = new AliITSgeomSPD();
- *fp >> *spd;
- ReSetShape(ldet,spd);
- spd = 0;
- break;
- case kSDD : case kSDDp:
- sdd = new AliITSgeomSDD();
- *fp >> *sdd;
- ReSetShape(ldet,sdd);
- sdd = 0;
- break;
- case kSSD : case kSSDp :
- ssd = new AliITSgeomSSD();
- *fp >> *ssd;
- ReSetShape(ldet,ssd);
- ssd = 0;
- break;
- default:
- 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;
- case 8: // Matrix
- *fp >> ldet;
- if(fGm==0) fGm = new TObjArray(2270,0);
- if(fGm->At(ldet)!=0) delete (fGm->At(ldet));
- fGm->AddAt((TObject*)new AliITSgeomMatrix(),ldet);
- m = (AliITSgeomMatrix*) fGm->At(ldet);
- *fp >> *m;
- m = 0;
- break;
- default:
- 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
- delete fp;
-
- return;
-}
-//______________________________________________________________________
-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 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;
-
- filtmp = gSystem->ExpandPathName(filename);
- cout << "AliITSgeom, Writing New .det file " << filtmp << endl;
- fp = new ofstream(filtmp,ios::out); // open file to write
- *fp << "//Comment lines begin with two //, one #, or one !" << endl;
- *fp << "#Blank lines are skipped including /* and */ sections." << endl;
- *fp << "!and, in principle the order of the lines is not important" <<endl;
- *fp << "/* In AliITSgeom.h are defined an enumerated type called" << endl;
- *fp << " AliITSDetectors These are kSPD=" << (Int_t) kSPD ;
- *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 consistent with the
- // geometry version.
- *fp << "fTrans " << fTrans << endl;
- *fp << "fNmodules " << fNmodules << endl;
- *fp << "fNlayers " << fNlayers << endl;
- *fp << "fNladers ";
- for(i=0;i<fNlayers;i++) *fp << fNlad[i] << " ";
- *fp << endl;
- *fp << "fNdetectors ";
- for(i=0;i<fNlayers;i++) *fp << fNdet[i] << " ";
- *fp << endl;
- *fp << "fNDetectorTypes " << fShape->GetEntriesFast() << endl;
- for(i=0;i<fShape->GetEntriesFast();i++){
- if(!IsShapeDefined(i)) continue; // only print out used shapes.
- switch (i){
- case kSPD :
- *fp << "fShape " << (Int_t) kSPD << " ";
- *fp << *((AliITSgeomSPD*)(fShape->At(i)));
- break;
- case kSDD :
- *fp << "fShape " << (Int_t) kSDD << " ";
- *fp << *((AliITSgeomSDD*)(fShape->At(i)));
- break;
- case kSSD : case kSSDp :
- *fp << "fShape " << i << " ";
- *fp << *((AliITSgeomSSD*)(fShape->At(i)));
- break;
- default:
- Error("AliITSgeom::WriteNewFile","Unknown Shape value");
- } // end switch (i)
- } // end for i
- for(i=0;i<fNmodules;i++){
- *fp << "Matrix " << i << " ";
- *fp << *GetGeomMatrix(i);
- } // end for i
- *fp << "//End of File" << endl;;
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // none.
- 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.
- // 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;
-
- 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){
- 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);
-
- // 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(const AliITSgeom &source) : TObject(source){
+AliITSgeom::AliITSgeom(const AliITSgeom &source) :
+TObject(source),
+fVersion(source.fVersion), // Transformation version.
+fTrans(source.fTrans), // Flag to keep track of which transformation
+fNmodules(source.fNmodules),// The total number of modules
+fNlayers(source.fNlayers), // The number of layers.
+fNlad(source.fNlad), // Array of the number of ladders/layer(layer)
+fNdet(source.fNdet), // Array of the number of detector/ladder(layer)
+fGm(source.fGm.GetSize(),source.fGm.LowerBound())// Structure of
+ // translation and rotation.
+{
// 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.
+ // Inputs:
+ // AliITSgeom &source The AliITSgeom class with which to make this
+ // a copy of.
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+ Int_t i,n;
+
+ n = source.fGm.GetLast()+1;
+ for(i=source.fGm.LowerBound();i<n;i++){
+ fGm.AddAt(new AliITSgeomMatrix(*((AliITSgeomMatrix*)(
+ source.fGm.At(i)))),i);
+ } // end for i
+ fGm.SetOwner(kTRUE);
return;
}
//______________________________________________________________________
// 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 *this; // don't assign to ones self.
-
- // if there is an old structure allocated delete it first.
- if(this->fGm != 0){
- for(i=0;i<this->fNmodules;i++) delete this->fGm->At(i);
- delete this->fGm;
- } // end if fGm != 0
- if(fNlad != 0) delete[] fNlad;
- if(fNdet != 0) delete[] fNdet;
+ // Inputs:
+ // AliITSgeom &source The AliITSgeom class with which to make this
+ // a copy of.
+ // Outputs:
+ // none.
+ // Return:
+ // *this The a new copy of source.
+ Int_t i;
- this->fTrans = source.fTrans;
- this->fNmodules = source.fNmodules;
- this->fNlayers = source.fNlayers;
- this->fNlad = new Int_t[fNlayers];
- for(i=0;i<this->fNlayers;i++) this->fNlad[i] = source.fNlad[i];
- this->fNdet = new Int_t[fNlayers];
- for(i=0;i<this->fNlayers;i++) this->fNdet[i] = source.fNdet[i];
- this->fShape = new TObjArray(*(source.fShape));//This does not make a proper copy.
- this->fGm = new TObjArray(this->fNmodules,0);
- for(i=0;i<this->fNmodules;i++){
- this->fGm->AddAt(new AliITSgeomMatrix(*(
- (AliITSgeomMatrix*)(source.fGm->At(i)))),i);
- } // end for i
- return *this;
+ if(this == &source) return *this; // don't assign to ones self.
+
+ // if there is an old structure allocated delete it first.
+ this->fGm.Clear();
+
+ this->fVersion = source.fVersion;
+ this->fTrans = source.fTrans;
+ this->fNmodules = source.fNmodules;
+ this->fNlayers = source.fNlayers;
+ this->fNlad = source.fNlad;
+ this->fNdet = source.fNdet;
+ this->fGm.Expand(this->fNmodules);
+ for(i=source.fGm.LowerBound();i<source.fGm.GetLast();i++){
+ fGm.AddAt(new AliITSgeomMatrix(*((AliITSgeomMatrix*)(
+ source.fGm.At(i)))),i);
+ } // end for i
+ fGm.SetOwner(kTRUE);
+ return *this;
}
//______________________________________________________________________
-Int_t AliITSgeom::GetModuleIndex(Int_t lay,Int_t lad,Int_t det){
+Int_t AliITSgeom::GetModuleIndex(Int_t lay,Int_t lad,Int_t det)const{
// 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.
+ // Inputs:
+ // 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:
+ // none.
+ // Return:
+ // the module index number, starting from zero.
Int_t i,j,k,id[3];
i = fNdet[lay-1] * (lad-1) + det - 1;
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
for(i=0;i<fNmodules;i++){
- GetGeomMatrix(i)->GetIndex(id);
- if(id[0]==lay&&id[1]==lad&&id[2]==det) return i;
+ GetGeomMatrix(i)->GetIndex(id);
+ if(id[0]==lay&&id[1]==lad&&id[2]==det) return i;
} // end for i
// This layer ladder and detector combination does not exist return -1.
return -1;
}
//______________________________________________________________________
-void AliITSgeom::GetModuleId(Int_t index,Int_t &lay,Int_t &lad,Int_t &det){
+void AliITSgeom::GetModuleId(Int_t index,Int_t &lay,Int_t &lad,Int_t &det)
+const{
// 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.
+ // Inputs:
+ // Int_t index The module index number, starting from zero.
+ // Outputs:
+ // 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.
+ // Return:
+ // none.
Int_t id[3];
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;
+ 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];
+ }// End if
+ return;
// The old way kept for posterity.
/*
Int_t i,j,k;
*/
}
//______________________________________________________________________
-Int_t AliITSgeom::GetStartDet(Int_t dtype){
+Int_t AliITSgeom::GetNDetTypes(Int_t &max)const{
+ // Finds and returns the number of detector types used and the
+ // maximum detector type value. Only counts id >=0 (no undefined
+ // values. See AliITSgeom.h for list of AliITSDetecor enumerated types.
+ // Inputs:
+ // none.
+ // Outputs:
+ // The maximum detector type used
+ // Return:
+ // The number of detector types used
+ Int_t i,*n,id;
+
+ max = -1;
+ for(i=0;i<GetIndexMax();i++){
+ id = GetModuleType(i);
+ if(id>max) max=id;
+ } // end for i
+ n = new Int_t[max+1];
+ for(i=0;i<max;i++) n[i] = 0;
+ for(i=0;i<GetIndexMax();i++){
+ id = GetModuleType(i);
+ if(id>-1)n[id]++; // note id=-1 => undefined.
+ } // end for i
+ id = 0;
+ for(i=0;i<max;i++) if(n[i]!=0) id++;
+ delete[] n;
+ return id+1;
+}
+//______________________________________________________________________
+Int_t AliITSgeom::GetNDetTypes(TArrayI &maxs,AliITSDetector *types)const{
+ // Finds and returns the number of detector types used and the
+ // number of each detector type. Only counts id >=0 (no undefined
+ // values. See AliITSgeom.h for list of AliITSDetecor enumerated types.
+ // Inputs:
+ // none.
+ // Outputs:
+ // The maximum detector type used
+ // Return:
+ // The number of detector types used
+ Int_t i,j,*n,id,max;
+
+ max = -1;
+ for(i=0;i<GetIndexMax();i++){
+ id = GetModuleType(i);
+ if(id>max) max=id;
+ } // end for i
+ n = new Int_t[max+1];
+ for(i=0;i<max;i++) n[i] = 0;
+ for(i=0;i<GetIndexMax();i++){
+ id = GetModuleType(i);
+ if(id>-1)n[id]++; // note id=-1 => undefined.
+ } // end for i
+ id = 0;
+ for(i=0;i<=max;i++) if(n[i]!=0) id++;
+ maxs.Set(id);
+ j = 0;
+ for(i=0;i<=max;i++) if(n[i]!=0){
+ maxs[j] = n[i];
+ types[j++] = (AliITSDetector) i;
+ } // end for i/end if
+ delete[] n;
+ return id;
+}
+//______________________________________________________________________
+Int_t AliITSgeom::GetStartDet(Int_t dtype)const{
// 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.
+ // Inputs:
+ // Int_t dtype A detector type number. 0 for SPD, 1 for SDD,
+ // and 2 for SSD.
+ // Outputs:
+ // none.
+ // Return:
+ // the module index for the first occurrence of that detector type.
switch(dtype){
case 0:
- return GetModuleIndex(1,1,1);
- break;
+ return GetModuleIndex(1,1,1);
+ break;
case 1:
- return GetModuleIndex(3,1,1);
- break;
+ return GetModuleIndex(3,1,1);
+ break;
case 2:
- return GetModuleIndex(5,1,1);
- break;
+ return GetModuleIndex(5,1,1);
+ break;
default:
- Warning("GetStartDet","undefined detector type %d",dtype);
- return 0;
+ Warning("GetStartDet","undefined detector type %d",dtype);
+ return 0;
} // end switch
Warning("GetStartDet","undefined detector type %d",dtype);
return 0;
}
//______________________________________________________________________
-Int_t AliITSgeom::GetLastDet(Int_t dtype){
+Int_t AliITSgeom::GetLastDet(Int_t dtype)const{
// 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.
+ // Inputs:
+ // Int_t dtype A detector type number. 0 for SPD, 1 for SDD,
+ // and 2 for SSD.
+ // Outputs:
+ // Return:
+ // the module index for the last occurrence of that detector type.
- switch(dtype){
- case 0:
- return GetLastSPD();
- break;
- case 1:
- return GetLastSDD();
- break;
- case 2:
- return GetLastSSD();
- break;
+ switch((AliITSDetector)dtype){
+ case kSPD:
+ return GetModuleIndex(3,1,1)-1;
+ break;
+ case kSDD:
+ return GetModuleIndex(5,1,1)-1;
+ break;
+ case kSSD:
+ return GetIndexMax()-1;
+ break;
+ case kSSDp: case kSDDp: case kND:
default:
- Warning("GetLastDet","undefined detector type %d",dtype);
- return 0;
+ 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.
- // 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,Int_t lay,Int_t lad,Int_t det){
+void AliITSgeom::PrintData(FILE *fp,Int_t lay,Int_t lad,Int_t det)const{
// 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
// 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
+ // Inputs:
+ // 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:
+ // none
+ // Return:
+ // none.
AliITSgeomMatrix *gt;
Double_t t[3],r[3],m[3][3];
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());
+ 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 &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;
-
- 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++) {
- rb <<setprecision(16) << *(GetGeomMatrix(i)) << "\n";
- } // end for i
- 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 &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 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
- // 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.
- // 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.
- // 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).
- // 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],Int_t lay){
+Int_t AliITSgeom::GetNearest(const Double_t g[3],Int_t lay)const{
// 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.
+ // Inputs:
+ // Double_t g[3] The ALICE Cartesian 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.
+ // Output:
+ // none.
+ // 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
+ 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],Int_t lay){
+void AliITSgeom::GetNearest27(const Double_t g[3],Int_t n[27],Int_t lay)const{
// 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.
+ // Input:
+ // Double_t g[3] The ALICE Cartesian 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.
+ // Output:
+ // Int_t n[27] The module number representing the nearest 27 modules
+ // in order.
+ // Return:
+ // none.
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,};
+ 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};
+ 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
+ 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];
}
+//_______________________________________________________________________
+void AliITSgeom::DetLToTrackingV2(Int_t md,Float_t xin,Float_t zin,
+ Float_t &yout,Float_t &zout) const {
+
+ //Conversion from local coordinates on detectors to local
+ //coordinates used for tracking ("v2")
+ // Inputs:
+ // Int_t md Module number
+ // Float_t xin Standard local coordinate x
+ // Float_t zin Standard local coordinate z
+ // Output:
+ // Float_t yout Tracking local coordinate y
+ // Float_t zout Tracking local coordinate z
+ // Return:
+ // none.
+ Float_t x,y,z;
+ Double_t rt[9],al;
+
+ GetTrans(md,x,y,z);
+ GetRotMatrix(md,rt);
+ al = TMath::ATan2(rt[1],rt[0])+TMath::Pi();
+ yout = -(-xin+(x*((Float_t)TMath::Cos(al))+y*((Float_t)TMath::Sin(al))));
+ if(md<(GetModuleIndex(2,1,1))) yout *= -1;
+ zout = -zin+z;
+}
+//_______________________________________________________________________
+void AliITSgeom::TrackingV2ToDetL(Int_t md,Float_t yin,Float_t zin,
+ Float_t &xout,Float_t &zout) const {
+ //Conversion from local coordinates used for tracking ("v2") to
+ //local detector coordinates
+ // Inputs:
+ // Int_t md Module number
+ // Float_t yin Tracking local coordinate y
+ // Float_t zin Tracking local coordinate z
+ // Output:
+ // Float_t xout Standard local coordinate x
+ // Float_t zout Standard local coordinate z
+ // Return:
+ // none.
+ Float_t x,y,z;
+ Double_t rt[9],al;
+
+ GetTrans(md,x,y,z);
+ GetRotMatrix(md,rt);
+ al = TMath::ATan2(rt[1],rt[0])+TMath::Pi();
+ xout = yin;
+ if(md<(GetModuleIndex(2,1,1))) xout = -xout;
+ xout += (x*((Float_t)TMath::Cos(al))+y*((Float_t)TMath::Sin(al)));
+ zout = -zin+z;
+}
//----------------------------------------------------------------------
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff