+++ /dev/null
-/**************************************************************************
- * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
- * *
- * Author: The ALICE Off-line Project. *
- * Contributors are mentioned in the code where appropriate. *
- * *
- * Permission to use, copy, modify and distribute this software and its *
- * documentation strictly for non-commercial purposes is hereby granted *
- * without fee, provided that the above copyright notice appears in all *
- * copies and that both the copyright notice and this permission notice *
- * appear in the supporting documentation. The authors make no claims *
- * about the suitability of this software for any purpose. It is *
- * provided "as is" without express or implied warranty. *
- **************************************************************************/
-
-/* $Id$ */
-
-#include "AliRICHSegmentation.h"
-
-
-ClassImp(AliRICHSegmentation)
-
-//________________________________________________________________________________
-AliRICHSegmentation::AliRICHSegmentation()
-{
- fNpx=144; // Number of pads in x direction
- fNpy=160; // Number of pads in y direction
- fSector=-1;
- fDeadZone=3.0; // spacer between photocathod planes cm
- fDpx=0.84; // Pad x size cm
- fDpy=0.8; // Pad y size cm
- fWireD=0.84/2; // cm set by SetDAnod
-}//AliRICHSegmentation::ctor()
-
-void AliRICHSegmentation::Init()
-{
- Float_t csi_length = fNpy*fDpy + fDeadZone;
- Float_t csi_width = fNpx*fDpx + 2*fDeadZone;
-
- fPadPlane_Width = (csi_width - 2*fDeadZone)/3;
- fPadPlane_Length = (csi_length - fDeadZone)/2;
-}//void AliRICHSegmentation::Init()
-
-// calculate sector from x-y coordinates
-
-Int_t AliRICHSegmentation::Sector(Float_t x, Float_t y)
-{
-// Calculate to which sector does the hit (x,y) belong
-
- fSector=-1;
-
- //Parametrized definition
-
- if (y<-fDeadZone/2)
- {
- if (x> fPadPlane_Width/2 +fDeadZone)
- {
- if ( x<fPadPlane_Width/2 +fDeadZone + fPadPlane_Width)
- fSector=0;
- }
- if (x< fPadPlane_Width/2)
- {
- if (x> -( fPadPlane_Width/2))
- fSector=2;
- }
- if (x< -( fPadPlane_Width/2 +fDeadZone))
- {
- if (x> -( fPadPlane_Width/2 +fDeadZone + fPadPlane_Width))
- fSector=4;
- }
- }
- else if (y>fDeadZone/2)
- {
- if (x> fPadPlane_Width/2 +fDeadZone)
- {
- if (x< fPadPlane_Width/2 +fDeadZone + fPadPlane_Width)
- fSector=1;
- }
- if (x< fPadPlane_Width/2)
- {
- if (x> -( fPadPlane_Width/2))
- fSector=3;
- }
- if (x< -( fPadPlane_Width/2 +fDeadZone))
- {
- if (x> -( fPadPlane_Width/2 +fDeadZone + fPadPlane_Width))
- fSector=5;
- }
- }
-
- return fSector;
-}//Int_t AliRICHSegmentation::Sector(Float_t x, Float_t y)
-
-
-void AliRICHSegmentation::GetPadI(Float_t x, Float_t y, Int_t &ix, Int_t &iy)
-{
-// real coordinates (x,y) -> (ix,iy) pad numbers
-//
-// Please check origin of pad numbering !!!
-
- Int_t sector=Sector(x,y);
-
- //printf("Sector: %d\n",sector);
-
- if (sector==0)
- {
- //ix = (x>0)? Int_t(x/fDpx)+1 : Int_t(x/fDpx);
- //iy = (y>0)? Int_t(y/fDpy)+1 : Int_t(y/fDpy);
- ix = Int_t ((x-fDeadZone)/fDpx);
- iy = Int_t ((y+fDeadZone/2)/fDpy)-1;
- }
- if (sector==1)
- {
- ix = Int_t ((x-fDeadZone)/fDpx);
- iy = Int_t ((y-fDeadZone/2)/fDpy);
- }
- if (sector==2)
- {
- ix = (x>=0)? ix = Int_t (x/fDpx) : ix = Int_t (x/fDpx)-1;
- iy = Int_t ((y+fDeadZone/2)/fDpy)-1;
- }
- if (sector==3)
- {
- ix = (x>=0)? ix = Int_t (x/fDpx) : ix = Int_t (x/fDpx)-1;
- iy = Int_t ((y-fDeadZone/2)/fDpy);
- }
- if (sector==4)
- {
- ix = Int_t ((x+fDeadZone)/fDpx)-1;
- iy = Int_t ((y+fDeadZone/2)/fDpy)-1;
- }
- if (sector==5)
- {
- ix = Int_t ((x+fDeadZone)/fDpx)-1;
- iy = Int_t ((y-fDeadZone/2)/fDpy);
- }
-
-
- //ix = Int_t (x/fDpx);
- //iy = Int_t (y/fDpy);
-
- //ix = (x>0)? Int_t(x/fDpx)+1 : Int_t(x/fDpx);
- //iy = (y>0)? Int_t(y/fDpy)+1 : Int_t(y/fDpy);
-
- if (sector==-1)
- {
- ix = fIxmax;
- iy = fIymax;
- }
-
- if (iy > fNpy) iy= fNpy;
- if (iy < -fNpy) iy=-fNpy;
- if (ix > fNpx) ix= fNpx;
- if (ix < -fNpx) ix=-fNpx;
-}//void AliRICHSegmentation::GetPadI(Float_t x, Float_t y, Int_t &ix, Int_t &iy)
-
-
-void AliRICHSegmentation::GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y)
-{
-//
-// pad numbers (ix,iy)->(x,y) real coordinates
-//
-
- Int_t sector=-1;
-
-
- Float_t padplane_width = fNpx/3;
-
- if (iy<0)
- {
- if (ix < fNpx/2)
- {
- if (ix >= padplane_width/2)
- sector=0;
- }
- if (ix< padplane_width/2)
- {
- if (ix >= -(padplane_width/2))
- sector=2;
- }
- if (ix >= -(fNpx/2))
- {
- if (ix < -(padplane_width/2))
- sector=4;
- }
- }
- if (iy>=0)
- {
- if (ix < fNpx/2)
- {
- if (ix >= padplane_width/2)
- sector=1;
- }
- if (ix< padplane_width/2)
- {
- if (ix >= -(padplane_width/2))
- sector=3;
- }
- if (ix >= -(fNpx/2))
- {
- if (ix < -(padplane_width/2))
- sector=5;
- }
- }
-
- if (sector==0)
- {
- x = Float_t(ix)*fDpx+fDpx/2+fDeadZone;
- y = Float_t(iy)*fDpy+fDpy/2-fDeadZone/2;
- }
- if (sector==1)
- {
- x = Float_t(ix)*fDpx+fDpx/2+fDeadZone;
- y = Float_t(iy)*fDpy+fDpy/2+fDeadZone/2;
- }
- if (sector==2)
- {
- x = (ix>=0) ? x = Float_t(ix)*fDpx+fDpx/2 : x = Float_t(ix)*fDpx+fDpx/2;
- y = Float_t(iy)*fDpy+fDpy/2-fDeadZone/2;
- }
- if (sector==3)
- {
- x = (ix>=0) ? x = Float_t(ix)*fDpx+fDpx/2 : x = Float_t(ix)*fDpx+fDpx/2;
- y = Float_t(iy)*fDpy+fDpy/2+fDeadZone/2;
- }
- if (sector==4)
- {
- x = Float_t(ix)*fDpx+fDpx/2-fDeadZone;
- y = Float_t(iy)*fDpy+fDpy/2-fDeadZone/2;
- }
- if (sector==5)
- {
- x = Float_t(ix)*fDpx+fDpx/2-fDeadZone;
- y = Float_t(iy)*fDpy+fDpy/2+fDeadZone/2;
- }
-
-}//void AliRICHSegmentation::GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y)
-
-
-void AliRICHSegmentation::IntegrationLimits(Float_t& x1,Float_t& x2,Float_t& y1, Float_t& y2)
-{
-
-// Calculates integration limits
-
- x1=fXhit-fX-fDpx/2.;
- x2=x1+fDpx;
- y1=fYhit-fY-fDpy/2.;
- y2=y1+fDpy;
-}//void AliRICHSegmentation::IntegrationLimits(Float_t& x1,Float_t& x2,Float_t& y1, Float_t& y2)
-
-
-Int_t AliRICHSegmentation::SigGenCond(Float_t x,Float_t y,Float_t)
-{
-//
-// Signal will be generated if particle crosses pad boundary or
-// boundary between two wires.
- Int_t ixt, iyt;
- GetPadI(x,y,ixt,iyt);
- Int_t iwt=(x>0) ? Int_t(x/fWireD)+1 : Int_t(x/fWireD)-1;
-
- if ((ixt != fIxt) || (iyt !=fIyt) || (iwt != fIwt)) {
- return 1;
- } else {
- return 0;
- }
-}
-
-
-void AliRICHSegmentation::SigGenInit(Float_t x,Float_t y,Float_t)
-{
-//
-// Initialises pad and wire position during stepping
- fXt =x;
- fYt =y;
- GetPadI(x,y,fIxt,fIyt);
- fIwt= (x>0) ? Int_t(x/fWireD)+1 : Int_t(x/fWireD)-1 ;
-}
-
-
-Float_t AliRICHSegmentation::GetAnod(Float_t xhit) const
-{
-
-// Get anod wire closer to hit
-
- Float_t wire= (xhit>0)? Int_t(xhit/fWireD)+0.5:Int_t(xhit/fWireD)-0.5;
- return fWireD*wire;
-}
-
-
-void AliRICHSegmentation::SetHit(Float_t xhit, Float_t yhit)
-{
-//
-// Find the wire position (center of charge distribution)
-// Float_t x0a=GetAnod(xhit);
- fXhit=xhit;
- fYhit=yhit;
-}
-
-void AliRICHSegmentation::
-SetPad(Int_t ix, Int_t iy)
-{
-
-// Move to pad ix, iy
-
- GetPadC(ix,iy,fX,fY);
-}
-
-
-
-void AliRICHSegmentation::
-FirstPad(Float_t xhit, Float_t yhit, Float_t dx, Float_t dy)
-{
-
- //
- // Find the wire position (center of charge distribution)
- Float_t x0a=GetAnod(xhit);
- fXhit=x0a;
- fYhit=yhit;
- //
- // and take fNsigma*sigma around this center
- Float_t x01=x0a - dx;
- Float_t x02=x0a + dx;
- Float_t y01=yhit - dy;
- Float_t y02=yhit + dy;
- //
- // find the pads over which the charge distributes
- GetPadI(x01,y01,fIxmin,fIymin);
- GetPadI(x02,y02,fIxmax,fIymax);
- //
- // Set current pad to lower left corner
- fIx=fIxmin;
- fIy=fIymin;
- GetPadC(fIx,fIy,fX,fY);
-
- //if (fSector==2)
- //printf("fIx: %d, fIy: %d fX: %f, fY: %f\n",fIx,fIy,fX,fY);
-}
-
-void AliRICHSegmentation::NextPad()
-{
- //printf("\n Next Pad \n");
-
- //
- // Step to next pad in integration region
- if (fIx <= fIxmax) {
-// if (fIx==-1) fIx++;
- fIx++;
- } else if (fIy <= fIymax) {
-// if (fIy==-1) fIy++;
- fIx=fIxmin;
- fIy++;
- } else {
- printf("\n Error: Stepping outside integration region\n ");
- }
- GetPadC(fIx,fIy,fX,fY);
-}
-
-Int_t AliRICHSegmentation::MorePads()
-{
-//
-// Are there more pads in the integration region
-
- //printf("\n More Pads ? \n");
-
-
- if (fIx >= fIxmax && fIy >= fIymax) {
- //printf("There are no more pads\n\n\n\n\n");
- return 0;
- } else {
- //printf("There are more pads\n\n");
- return 1;
- }
-}
-
-
-
-void AliRICHSegmentation::Neighbours(Int_t iX, Int_t iY, Int_t* Nlist, Int_t Xlist[7], Int_t Ylist[7])
-{
-//Is used for the cluster finder, include diagonal elements
- *Nlist=4;Xlist[0]=Xlist[1]=iX;Xlist[2]=iX-1;Xlist[3]=iX+1;
- Ylist[0]=iY-1;Ylist[1]=iY+1;Ylist[2]=Ylist[3]=iY;
-}//void AliRICHSegmentation::Neighbours(Int_t iX, Int_t iY, Int_t* Nlist, Int_t Xlist[7], Int_t Ylist[7])
-
-Float_t AliRICHSegmentation::Distance2AndOffset(Int_t iX, Int_t iY, Float_t X, Float_t Y, Int_t *dummy)
-{
-// Returns the square of the distance between 1 pad
-// labelled by its Channel numbers and a coordinate
-
- Float_t x,y;
- GetPadC(iX,iY,x,y);
- return (x-X)*(x-X) + (y-Y)*(y-Y);
-}//Float_t AliRICHSegmentation::Distance2AndOffset(Int_t iX, Int_t iY, Float_t X, Float_t Y, Int_t *dummy)
+++ /dev/null
-#ifndef AliRICHSegmentation_h
-#define ALIRICHSegmentation_h
-
-
-/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
- * See cxx source for full Copyright notice */
-
-
-#include "TObject.h"
-class TF1;
-
-class AliRICHSegmentation : public TObject
-{
-public:
- AliRICHSegmentation();
- virtual ~AliRICHSegmentation(){}
-// pad size getter&setter
- void SetPadSize(Float_t p1, Float_t p2) {fDpx=p1;fDpy=p2;Init();}
- Float_t Dpx() const{return fDpx;} // Get pad width in cm
- Float_t Dpy() const{return fDpy;} // Get pad heights in cm
-
- Int_t Npx() const{return fNpx;} // Get number of Pads in x direction
- Int_t Npy() const{return fNpy;} // Get number of Pads in y direction
- Float_t DeadZone() const{return fDeadZone;} // Dead zone width in cm
-
- void SetDAnod(Float_t D) {fWireD = D; Init();}
- Float_t GetAnod(Float_t xhit) const;
-
- Int_t Ix() const{return fIx;} // Current pad during integration: x-coordinate
- Int_t Iy() const{return fIy;} // Current pad during integration: y-coordinate
- Int_t ISector() const{return fSector;} // Get current sector
-
- void GetPadI(Float_t x, Float_t y , Int_t &ix, Int_t &iy);
-// void GetPadI(Float_t x, Float_t y , Float_t z, Int_t &ix, Int_t &iy) {GetPadI(x, y, ix, iy);}
- // Transform from real to pad coordinates
- void GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y);
-// void GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y, Float_t &z) {z=0; GetPadC(ix, iy, x , y);}
- //
- void Init(); // Recalculation after changing the paremeters
- Float_t Dpx(Int_t) const {return fDpx;}
- Float_t Dpy(Int_t) const {return fDpy;}
-
- void SetCorrFunc(Int_t dum, TF1* func) {fCorr=func;}// Set function for systematic corrections
- TF1* CorrFunc(Int_t) const {return fCorr;}// Set function for systematic corrections
-
- Float_t GetPadPlaneWidth() const {return fPadPlane_Width;}
- Float_t GetPadPlaneLength() const {return fPadPlane_Length;}
-
- void SetPad(Int_t ix, Int_t iy); // set pad position
- void SetHit(Float_t xhit , Float_t yhit);// set hit position
-
-
-// void SetHit(Float_t xhit, Float_t yhit, Float_t zhit){SetHit(xhit, yhit);}
- //
- // Iterate over pads
- // Initialiser
- void FirstPad(Float_t xhit, Float_t yhit, Float_t dx, Float_t dy);
- void FirstPad(Float_t xhit, Float_t yhit, Float_t zhit, Float_t dx, Float_t dy)
- {FirstPad(xhit, yhit, dx, dy);}
- // Stepper
- void NextPad();
- // Condition
- Int_t MorePads();
- //
- // Distance between 1 pad and a position
- Float_t Distance2AndOffset(Int_t iX, Int_t iY, Float_t X, Float_t Y, Int_t *dummy);
- // Number of pads read in parallel and offset to add to x
- // (specific to LYON, but mandatory for display)
- virtual void GetNParallelAndOffset(Int_t iX, Int_t iY,Int_t *Nparallel, Int_t *Offset) {*Nparallel=1;*Offset=0;}
-
- void Neighbours(Int_t iX, Int_t iY, Int_t* Nlist, Int_t Xlist[10], Int_t Ylist[10]);
-
-
- Int_t Sector(Float_t x,Float_t y); // calculate sector from x-y coordinates
-
- // Signal Generation Condition during Stepping
- Int_t SigGenCond(Float_t x, Float_t y, Float_t z);
-
- void SigGenInit(Float_t x, Float_t y, Float_t z);// Initialise signal gneration at coord (x,y,z)
- void IntegrationLimits(Float_t& x1, Float_t& x2, Float_t& y1, Float_t& y2); // Current integration limits
- void GiveTestPoints(Int_t &n, Float_t *x, Float_t *y) const{n=1;x[0]=0.;y[0]=x[0];} // Test points for auto calibration
-
-
-
-protected:
- Float_t fDpx; // x pad width per sector
- Float_t fDpy; // y pad base width
- Int_t fNpx; // Number of pads in x
- Int_t fNpy; // Number of pads in y
- Int_t fSector; // Current padplane
- Float_t fWireD; // wire pitch
-
- Float_t fDeadZone; //width of deadzones beteween CsI padplanes
- Float_t fPadPlane_Width; //width of CsI padplanes
- Float_t fPadPlane_Length; //length of CsI padplanes
-
-
-// Chamber region consideres during disintegration (lower left and upper right corner)
- Int_t fIxmin; // lower left x
- Int_t fIxmax; // lower left y
- Int_t fIymin; // upper right x
- Int_t fIymax; // upper right y
-
- Int_t fIx; // Current x pad during integration (cursor for disintegration)
- Int_t fIy; // Current y pad during integration (cursor for disintegration)
- Float_t fX; // x
- Float_t fY; // y
- //
- // Current pad and wire during tracking (cursor at hit centre)
- Float_t fXhit; //x position
- Float_t fYhit; //y position
- // Reference point to define signal generation condition
- Int_t fIxt; // pad coord. x
- Int_t fIyt; // pad coord. y
- Int_t fIwt; // wire number
- Float_t fXt; // x
- Float_t fYt; // y
- TF1* fCorr; // correction function
-
- ClassDef(AliRICHSegmentation,1)
-};
-#endif //AliRICHSegmentation_h
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff