HiEvtPlaneFlatten Class Reference

#include <HiEvtPlaneFlatten.h>

Public Member Functions
Double_t	bounds (Double_t ang)
Double_t	bounds2 (Double_t ang)
void	Fill (double psi, double vtx, int centbin)
double	GetCnt (int bin)
int	GetCutIndx (int centbin, double vtx, int iord)
double	GetFlatPsi (double psi, double vtx, double cent)
int	GetHBins ()
double	GetX (int bin)
double	GetY (int bin)
	HiEvtPlaneFlatten ()
void	Init (int order, int ncentbins, const int centbinCompression, std::string tag, int vord)
void	SetXDB (int indx, double val)
void	SetYDB (int indx, double val)
	~HiEvtPlaneFlatten ()

Private Attributes
int	centbinComp
double	delvtx
double	flatCnt [MAXCUT]
double	flatX [MAXCUT]
double	flatXDB [MAXCUT]
double	flatY [MAXCUT]
double	flatYDB [MAXCUT]
int	hbins
int	hcentbins
int	hOrder
double	minvtx
int	nvtxbins
double	pi
int	vorder

Detailed Description

Definition at line 45 of file HiEvtPlaneFlatten.h.

Constructor & Destructor Documentation

HiEvtPlaneFlatten::HiEvtPlaneFlatten ( )

inlineexplicit

Definition at line 48 of file HiEvtPlaneFlatten.h.

References delvtx, hcentbins, hOrder, minvtx, nvtxbins, Pi, pi, and vorder.

  {
    pi = TMath::Pi();
    hcentbins = 1;
    hOrder = 20;
    vorder = 2;    //sets order of event plane
    minvtx = -25;
    delvtx = 5;
    nvtxbins = 10;
  }

HiEvtPlaneFlatten::~HiEvtPlaneFlatten ( )

inline

Definition at line 118 of file HiEvtPlaneFlatten.h.

{}

Member Function Documentation

Double_t HiEvtPlaneFlatten::bounds ( Double_t  ang )

inline

Definition at line 125 of file HiEvtPlaneFlatten.h.

References pi.

Referenced by GetFlatPsi().

                                {
    if(ang<-pi) ang+=2.*pi;
    if(ang>pi)  ang-=2.*pi;
    return ang;
  }

Double_t HiEvtPlaneFlatten::bounds2 ( Double_t  ang )

inline

Definition at line 130 of file HiEvtPlaneFlatten.h.

References pi, and vorder.

Referenced by GetFlatPsi().

                                 {
    double range = pi/(double) vorder;
    if(ang<-range) ang+=2*range;
    if(ang>range)  ang-=2*range;
    return ang;
  }

void HiEvtPlaneFlatten::Fill ( double  psi, double  vtx, int  centbin  )

inline

Definition at line 90 of file HiEvtPlaneFlatten.h.

References funct::cos(), flatCnt, flatX, flatY, GetCutIndx(), hOrder, gen::k, funct::sin(), and vorder.

  {
    if(fabs(psi)>4 ) return;
    for(int k = 0; k<hOrder; k++) {
      double fsin = sin(vorder*(k+1)*psi);
      double fcos = cos(vorder*(k+1)*psi);
      int indx = GetCutIndx(centbin,vtx,k);
      if(indx>=0) {
    flatX[indx]+=fcos;
    flatY[indx]+=fsin;
    ++flatCnt[indx];
      }
    }
  }

double HiEvtPlaneFlatten::GetCnt ( int  bin )

inline

Definition at line 122 of file HiEvtPlaneFlatten.h.

References newFWLiteAna::bin, and flatCnt.

{return flatCnt[bin];}

int HiEvtPlaneFlatten::GetCutIndx ( int  centbin, double  vtx, int  iord  )

inline

Definition at line 78 of file HiEvtPlaneFlatten.h.

References centbinComp, GOODCOLL_filter_cfg::cut, delvtx, hbins, hcentbins, hOrder, minvtx, and nvtxbins.

Referenced by Fill(), and GetFlatPsi().

  {
    int cut;
    int icent = centbin/centbinComp;
    if(icent < 0 || icent > hcentbins) return -1;
    int ivtx = (vtx-minvtx)/delvtx;
    if(ivtx < 0 || ivtx > nvtxbins) return -1;
    cut = hOrder*nvtxbins*icent + hOrder*ivtx + iord;
    if(cut<0 || cut>hbins) return -1;
    return cut;
  }

double HiEvtPlaneFlatten::GetFlatPsi ( double  psi, double  vtx, double  cent  )

inline

Definition at line 105 of file HiEvtPlaneFlatten.h.

References bounds(), bounds2(), funct::cos(), flatXDB, flatYDB, GetCutIndx(), hOrder, gen::k, funct::sin(), and vorder.

  {
    double correction = 0;
    for(int k = 0; k<hOrder; k++) {
      int indx = GetCutIndx(cent,vtx,k);
      correction+=(2./(double)((k+1)*vorder))*(flatXDB[indx]*sin(vorder*(k+1)*psi)-flatYDB[indx]*cos(vorder*(k+1)*psi));
    }
    psi+=correction;
    psi=bounds(psi);
    psi=bounds2(psi);
    return psi;
  }

int HiEvtPlaneFlatten::GetHBins ( )

inline

Definition at line 119 of file HiEvtPlaneFlatten.h.

References hbins.

{return hbins;}

double HiEvtPlaneFlatten::GetX ( int  bin )

inline

Definition at line 120 of file HiEvtPlaneFlatten.h.

References newFWLiteAna::bin, and flatX.

{return flatX[bin];}

double HiEvtPlaneFlatten::GetY ( int  bin )

inline

Definition at line 121 of file HiEvtPlaneFlatten.h.

References newFWLiteAna::bin, and flatY.

{return flatY[bin];}

void HiEvtPlaneFlatten::Init ( int  order, int  ncentbins, const int  centbinCompression, std::string  tag, int  vord  )

inline

Definition at line 58 of file HiEvtPlaneFlatten.h.

References centbinComp, gather_cfg::cout, flatCnt, flatX, flatY, hbins, hcentbins, hOrder, i, MAXCUT, nvtxbins, and vorder.

  {
    hOrder = order;  //order of flattening
    vorder = vord;   //1(v1), 2(v2), 3(v3), 4(v4)   
    hcentbins = ncentbins;
    centbinComp = centbinCompression;
    if(hcentbins<=0) hcentbins = 1;
    hbins = hcentbins*nvtxbins*hOrder;
    if(hbins>MAXCUT) {
      std::cout<<"Too many cuts for flattening calculation.  RESET to deaults"<<std::endl;
      hcentbins = 1;
      hOrder = 21;
    }
    for(int i = 0; i<hbins; i++) {
      flatX[i]=0;
      flatY[i]=0;
      flatCnt[i]=0;
    } 
  }

void HiEvtPlaneFlatten::SetXDB ( int  indx, double  val  )

inline

Definition at line 123 of file HiEvtPlaneFlatten.h.

References flatXDB.

{flatXDB[indx]=val;}

void HiEvtPlaneFlatten::SetYDB ( int  indx, double  val  )

inline

Definition at line 124 of file HiEvtPlaneFlatten.h.

References flatYDB.

{flatYDB[indx]=val;}

Member Data Documentation

int HiEvtPlaneFlatten::centbinComp

private

Definition at line 144 of file HiEvtPlaneFlatten.h.

Referenced by GetCutIndx(), and Init().

double HiEvtPlaneFlatten::delvtx

private

Definition at line 151 of file HiEvtPlaneFlatten.h.

Referenced by GetCutIndx(), and HiEvtPlaneFlatten().

double HiEvtPlaneFlatten::flatCnt[MAXCUT]

private

Definition at line 141 of file HiEvtPlaneFlatten.h.

Referenced by Fill(), GetCnt(), and Init().

double HiEvtPlaneFlatten::flatX[MAXCUT]

private

Definition at line 137 of file HiEvtPlaneFlatten.h.

Referenced by Fill(), GetX(), and Init().

double HiEvtPlaneFlatten::flatXDB[MAXCUT]

private

Definition at line 139 of file HiEvtPlaneFlatten.h.

Referenced by GetFlatPsi(), and SetXDB().

double HiEvtPlaneFlatten::flatY[MAXCUT]

private

Definition at line 138 of file HiEvtPlaneFlatten.h.

Referenced by Fill(), GetY(), and Init().

double HiEvtPlaneFlatten::flatYDB[MAXCUT]

private

Definition at line 140 of file HiEvtPlaneFlatten.h.

Referenced by GetFlatPsi(), and SetYDB().

int HiEvtPlaneFlatten::hbins

private

Definition at line 145 of file HiEvtPlaneFlatten.h.

Referenced by GetCutIndx(), GetHBins(), and Init().

int HiEvtPlaneFlatten::hcentbins

private

Definition at line 143 of file HiEvtPlaneFlatten.h.

Referenced by GetCutIndx(), HiEvtPlaneFlatten(), and Init().

int HiEvtPlaneFlatten::hOrder

private

Definition at line 142 of file HiEvtPlaneFlatten.h.

Referenced by Fill(), GetCutIndx(), GetFlatPsi(), HiEvtPlaneFlatten(), and Init().

double HiEvtPlaneFlatten::minvtx

private

Definition at line 150 of file HiEvtPlaneFlatten.h.

Referenced by GetCutIndx(), and HiEvtPlaneFlatten().

int HiEvtPlaneFlatten::nvtxbins

private

Definition at line 149 of file HiEvtPlaneFlatten.h.

Referenced by GetCutIndx(), HiEvtPlaneFlatten(), and Init().

double HiEvtPlaneFlatten::pi

private

Definition at line 147 of file HiEvtPlaneFlatten.h.

Referenced by bounds(), bounds2(), and HiEvtPlaneFlatten().

int HiEvtPlaneFlatten::vorder

private

Definition at line 146 of file HiEvtPlaneFlatten.h.

Referenced by bounds2(), Fill(), GetFlatPsi(), HiEvtPlaneFlatten(), and Init().