* about the suitability of this software for any purpose. It is *
* provided "as is" without express or implied warranty. *
**************************************************************************/
-
-#include <TF1.h>
+#include <Riostream.h>
#include <TMath.h>
#include "AliITSsegmentationSDD.h"
-#include "AliITS.h"
+// #include "AliITS.h"
#include "AliITSgeom.h"
#include "AliITSgeomSDD.h"
-#include "AliRun.h"
#include "AliITSresponse.h"
+//////////////////////////////////////////////////////
+// Segmentation class for //
+// drift detectors //
+// //
+//////////////////////////////////////////////////////
+
+const Float_t AliITSsegmentationSDD::fgkDxDefault = 35085.;
+const Float_t AliITSsegmentationSDD::fgkDzDefault = 75264.;
+const Float_t AliITSsegmentationSDD::fgkDyDefault = 300.;
+const Float_t AliITSsegmentationSDD::fgkPitchDefault = 294.;
+const Float_t AliITSsegmentationSDD::fgkClockDefault = 40.;
+const Int_t AliITSsegmentationSDD::fgkHalfNanodesDefault = 256;
+const Int_t AliITSsegmentationSDD::fgkNsamplesDefault = 256;
+
ClassImp(AliITSsegmentationSDD)
//----------------------------------------------------------------------
AliITSsegmentationSDD::AliITSsegmentationSDD(AliITSgeom* geom,
AliITSresponse *resp){
// constructor
fGeom=geom;
- fResponse=resp;
+ fDriftSpeed=resp->DriftSpeed();
fCorr=0;
- SetDetSize();
- SetPadSize();
- SetNPads();
+ SetDetSize(fgkDxDefault,fgkDzDefault,fgkDyDefault);
+ SetPadSize(fgkPitchDefault,fgkClockDefault);
+ SetNPads(fgkHalfNanodesDefault,fgkNsamplesDefault);
}
//______________________________________________________________________
-AliITSsegmentationSDD::AliITSsegmentationSDD(){
- // standard constructor
- fGeom=0;
- fResponse=0;
- fCorr=0;
- SetDetSize();
- SetPadSize();
- SetNPads();
+AliITSsegmentationSDD::AliITSsegmentationSDD() : AliITSsegmentation(){
+ // Default constructor
+ fDriftSpeed=0;
+ SetDetSize(fgkDxDefault,fgkDzDefault,fgkDyDefault);
+ SetPadSize(fgkPitchDefault,fgkClockDefault);
+ SetNPads(fgkHalfNanodesDefault,fgkNsamplesDefault);
}
+
//______________________________________________________________________
-AliITSsegmentationSDD& AliITSsegmentationSDD::operator=(AliITSsegmentationSDD
- &source){
- // Operator =
- if(this==&source) return *this;
- this->fNsamples = source.fNsamples;
- this->fNanodes = source.fNanodes;
- this->fPitch = source.fPitch;
- this->fTimeStep = source.fTimeStep;
- this->fDx = source.fDx;
- this->fDz = source.fDz;
- this->fDy = source.fDy;
- this->fCorr = new TF1(*(source.fCorr));
- this->fGeom = source.fGeom; // Just copy the pointer
- this->fResponse = source.fResponse; //Just copy the pointer
- return *this;
+void AliITSsegmentationSDD::Copy(TObject &obj) const {
+ // protected method. copy this to obj
+ AliITSsegmentation::Copy(obj);
+ ((AliITSsegmentationSDD& ) obj).fNsamples = fNsamples;
+ ((AliITSsegmentationSDD& ) obj).fNanodes = fNanodes;
+ ((AliITSsegmentationSDD& ) obj).fPitch = fPitch;
+ ((AliITSsegmentationSDD& ) obj).fTimeStep = fTimeStep;
+ ((AliITSsegmentationSDD& ) obj).fDriftSpeed = fDriftSpeed;
}
+
//______________________________________________________________________
-AliITSsegmentationSDD::AliITSsegmentationSDD(AliITSsegmentationSDD &source){
- // Copy constructor
- *this = source;
+AliITSsegmentationSDD& AliITSsegmentationSDD::operator=(const AliITSsegmentationSDD &source){
+ // = operator
+ if(this==&source) return *this;
+ source.Copy(*this);
+ return *this;
}
+
+//____________________________________________________________________________
+AliITSsegmentationSDD::AliITSsegmentationSDD(const AliITSsegmentationSDD &source) :
+ AliITSsegmentation(source){
+ // copy constructor
+ source.Copy(*this);
+}
+
//----------------------------------------------------------------------
void AliITSsegmentationSDD::Init(){
// Standard initilisation routine
if(!fGeom) {
+ Fatal("Init","the pointer to the ITS geometry class (AliITSgeom) is null\n");
return;
- //fGeom = ((AliITS*)gAlice->GetModule("ITS"))->GetITSgeom();
}
AliITSgeomSDD *gsdd = (AliITSgeomSDD *) (fGeom->GetShape(3,1,1));
//----------------------------------------------------------------------
void AliITSsegmentationSDD::
-Neighbours(Int_t iX, Int_t iZ, Int_t* Nlist, Int_t Xlist[8], Int_t Zlist[8]){
+Neighbours(Int_t iX, Int_t iZ, Int_t* Nlist, Int_t Xlist[8], Int_t Zlist[8]) const {
// returns neighbours for use in Cluster Finder routines and the like
if(iX >= fNanodes) printf("iX > fNanodes %d %d\n",iX,fNanodes);
}
//----------------------------------------------------------------------
void AliITSsegmentationSDD::GetPadIxz(Float_t x,Float_t z,
- Int_t &timebin,Int_t &anode){
-// Returns cell coordinates (time sample,anode) for given real local
-// coordinates (x,z)
+ Int_t &timebin,Int_t &anode) const {
+// Returns cell coordinates (time sample,anode) incremented by 1 !!!!!
+// for given real local coordinates (x,z)
// expects x, z in cm
const Float_t kconv=10000; // cm->um
- Float_t speed=fResponse->DriftSpeed();
+ x *= kconv; // Convert to microns
+ z *= kconv; // Convert to microns
Int_t na = fNanodes/2;
- Float_t driftpath=fDx-TMath::Abs(kconv*x);
- timebin=(Int_t)(driftpath/speed/fTimeStep);
- anode=(Int_t)(kconv*z/fPitch) + na/2;
+ Float_t driftpath=fDx-TMath::Abs(x);
+ timebin=(Int_t)(driftpath/fDriftSpeed/fTimeStep);
+ anode=(Int_t)(z/fPitch + na/2);
if (x > 0) anode += na;
timebin+=1;
}
//----------------------------------------------------------------------
void AliITSsegmentationSDD::GetPadCxz(Int_t timebin,Int_t anode,
- Float_t &x ,Float_t &z){
+ Float_t &x ,Float_t &z) const{
// Transform from cell to real local coordinates
// returns x, z in cm
+ // the +0.5 means that an # and time bin # should start from 0 !!!
const Float_t kconv=10000; // um->cm
+ // the +0.5 means that an # and time bin # should start from 0 !!!
- Float_t speed=fResponse->DriftSpeed();
Int_t na = fNanodes/2;
- Float_t driftpath=(timebin+1)*fTimeStep*speed;
+ Float_t driftpath=(timebin+0.5)*fTimeStep*fDriftSpeed;
if (anode >= na) x=(fDx-driftpath)/kconv;
else x = -(fDx-driftpath)/kconv;
if (anode >= na) anode-=na;
- z=((anode+1)*fPitch-fDz/2)/kconv;
+ z=((anode+0.5)*fPitch-fDz/2)/kconv;
}
//----------------------------------------------------------------------
-void AliITSsegmentationSDD::GetPadTxz(Float_t &x,Float_t &z){
+void AliITSsegmentationSDD::GetPadTxz(Float_t &x,Float_t &z) const{
// Get anode and time bucket as floats - numbering from 0
// expects x, z in cm
const Float_t kconv=10000; // cm->um
Float_t x0=x;
- Float_t speed=fResponse->DriftSpeed();
Int_t na = fNanodes/2;
Float_t driftpath=fDx-TMath::Abs(kconv*x);
- x=driftpath/speed/fTimeStep;
+ x=driftpath/fDriftSpeed/fTimeStep;
z=kconv*z/fPitch + (float)na/2;
if (x0 < 0) x = -x;
}
//----------------------------------------------------------------------
-void AliITSsegmentationSDD::GetLocal(Int_t module,Float_t *g ,Float_t *l){
+void AliITSsegmentationSDD::GetLocal(Int_t module,Float_t *g ,Float_t *l) const {
// returns local coordinates from global
if(!fGeom) {
+ Fatal("GetLocal","the pointer to the ITS geometry class (AliITSgeom) is null\n");
return;
- //fGeom = ((AliITS*)gAlice->GetModule("ITS"))->GetITSgeom();
}
fGeom->GtoL(module,g,l);
}
//----------------------------------------------------------------------
-void AliITSsegmentationSDD::GetGlobal(Int_t module,Float_t *l ,Float_t *g){
+void AliITSsegmentationSDD::GetGlobal(Int_t module,Float_t *l ,Float_t *g) const {
// return global coordinates from local
if(!fGeom) {
- return;
- //fGeom = ((AliITS*)gAlice->GetModule("ITS"))->GetITSgeom();
+ Fatal("GetGlobal","the pointer to the ITS geometry class (AliITSgeom) is null\n");
}
fGeom->LtoG(module,l,g);
}
//----------------------------------------------------------------------
-void AliITSsegmentationSDD::Print(){
+void AliITSsegmentationSDD::Print(Option_t *opt) const {
// Print SDD segmentation Parameters
cout << "**************************************************" << endl;
- cout << " Silicon Drift Detector Segmentation Parameters " << endl;
+ cout << " Silicon Drift Detector Segmentation Parameters " << opt << endl;
cout << "**************************************************" << endl;
cout << "Number of Time Samples: " << fNsamples << endl;
cout << "Number of Anodes: " << fNanodes << endl;
cout << "Time Step (ns): " << fTimeStep << endl;
cout << "Anode Pitch (um): " << fPitch << endl;
- cout << "Full Detector Width (x): " << fDx << endl;
- cout << "Half Detector Length (z): " << fDz << endl;
- cout << "Full Detector Thickness (y): " << fDy << endl;
+ cout << "Full Detector Width (x): " << fDx;
+ cout<<" (Default is "<<fgkDxDefault<<") "<<endl;
+ cout << "Half Detector Length (z): " << fDz;
+ cout<<" (Default is "<<fgkDzDefault<<") "<<endl;
+ cout << "Full Detector Thickness (y): " << fDy;
+ cout<<" (Default is "<<fgkDyDefault<<") "<<endl;
cout << "**************************************************" << endl;
}
-//______________________________________________________________________
+
+//----------------------------------------------------------------------
+void AliITSsegmentationSDD::PrintDefaultParameters() const {
+ // print SDD parameters defined as static const data members
+
+ cout << "**************************************************" << endl;
+ cout << " Silicon Drift Detector Segmentation Parameters " << endl;
+ cout << " Default values defined as static const data members"<< endl;
+ cout << " Actual values can be set with the relevant setters"<< endl;
+ cout << "**************************************************" << endl;
+ cout<<"fgkDxDefault = "<<fgkDxDefault<<endl;
+ cout<<"fgkDzDefault = "<<fgkDzDefault<<endl;
+ cout<<"fgkDyDefault = "<<fgkDyDefault<<endl;
+ cout<<"fgkPitchDefault = "<<fgkPitchDefault<<endl;
+ cout<<"fgkClockDefault = "<<fgkClockDefault<<endl;
+ cout<<"fgkHalfNanodesDefault = "<<fgkHalfNanodesDefault<<endl;
+ cout<<"fgkNsamplesDefault = "<<fgkNsamplesDefault<<endl;
+ cout << "**************************************************" << endl;
+
+}
//______________________________________________________________________
-void AliITSsegmentationSDD::LocalToDet(Float_t x,Float_t z,Int_t &ix,Int_t &iz){
+Bool_t AliITSsegmentationSDD::LocalToDet(Float_t x,Float_t z,
+ Int_t &ix,Int_t &iz) const {
// Transformation from Geant detector centered local coordinates (cm) to
// time bucket numbers ix and anode number iz.
// Input:
iz = -1; // default values
dx = -kconv*Dx(); // lower left edge in cm.
dz = -0.5*kconv*Dz(); // lower left edge in cm.
- if(x<dx || x>-dx) return; // outside of defined volume.
- if(z<dz || z>-dz) return; // outside of defined volume.
- tb = fResponse->DriftSpeed()*fTimeStep*kconv; // compute size of time bin.
+ if(x<dx || x>-dx) {
+ Warning("LocalToDet","input argument %f out of range (%f, %f)",x,dx,-dx);
+ return kFALSE; // outside of defined volume.
+ }
+ if(z<dz || z>-dz) {
+ Warning("LocalToDet","input argument %f out of range (%f, %f)",z,dz,-dz);
+ return kFALSE; // outside of defined volume.
+ }
+ tb = fDriftSpeed*fTimeStep*kconv; // compute size of time bin.
if(x>0) dx = -(dx + x)/tb; // distance from + side in time bin units
else dx = (x - dx)/tb; // distance from - side in time bin units
dz = (z - dz)/(kconv*fPitch); // distance in z in anode pitch units
ix = (Int_t) dx; // time bin
iz = (Int_t) dz; // anode
if(x>0) iz += Npz()/2; // if x>0 then + side anodes values.
- return; // Found ix and iz, return.
+ return kTRUE; // Found ix and iz, return.
}
//______________________________________________________________________
-void AliITSsegmentationSDD::DetToLocal(Int_t ix,Int_t iz,Float_t &x,Float_t &z)
+void AliITSsegmentationSDD::DetToLocal(Int_t ix,Int_t iz,Float_t &x,Float_t &z) const
{
// Transformation from Detector time bucket and anode coordiantes to Geant
// detector centerd local coordinates (cm).
if(iz>=Npz()/2) x = kconv*Dx(); // default value for +x side.
else x = -kconv*Dx(); // default value for -x side.
z = -0.5*kconv*Dz(); // default value.
- if(ix<0 || ix>=Npx()) return; // outside of detector
- if(iz<0 || iz>=Npz()) return; // outside of detctor
- tb = fResponse->DriftSpeed()*fTimeStep*kconv; // compute size of time bin.
+ if(ix<0 || ix>=Npx()) {
+ Warning("DetToLocal","input argument %d out of range (0, %d)",ix,Npx());
+ return; // outside of detector
+ }
+ if(iz<0 || iz>=Npz()) {
+ Warning("DetToLocal","input argument %d out of range (0, %d)",iz,Npz());
+ return; // outside of detctor
+ }
+ tb = fDriftSpeed*fTimeStep*kconv; // compute size of time bin.
if(iz>=Npz()/2) tb *= -1.0; // for +x side decrement frmo Dx().
for(i=0;i<ix;i++) x += tb; // sum up to cell ix-1
x += 0.5*tb; // add 1/2 of cell ix for center location.
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff