+++ /dev/null
-/* $Id$ */
-
-// ------------------------------------------------------
-//
-// Class to handle 2d-corrections.
-//
-// ------------------------------------------------------
-//
-
-#include <TH2F.h>
-#include <TMath.h>
-
-#include <AliLog.h>
-
-#include "AliCorrectionMatrix2D.h"
-
-//____________________________________________________________________
-ClassImp(AliCorrectionMatrix2D)
-
-//____________________________________________________________________
-AliCorrectionMatrix2D::AliCorrectionMatrix2D() :
- AliCorrectionMatrix()
-{
- // default constructor
-}
-
-//____________________________________________________________________
-AliCorrectionMatrix2D::AliCorrectionMatrix2D(const AliCorrectionMatrix2D& c)
- : AliCorrectionMatrix(c)
-{
- // copy constructor
- ((AliCorrectionMatrix2D &)c).Copy(*this);
-}
-
-//____________________________________________________________________
-AliCorrectionMatrix2D &AliCorrectionMatrix2D::operator=(const AliCorrectionMatrix2D &c)
-{
- // assigment operator
-
- if (this != &c)
- ((AliCorrectionMatrix2D &) c).Copy(*this);
-
- return *this;
-}
-
-//____________________________________________________________________
-AliCorrectionMatrix2D::AliCorrectionMatrix2D(const Char_t* name, const Char_t* title,
- Int_t nBinX, Float_t Xmin, Float_t Xmax,
- Int_t nBinY, Float_t Ymin, Float_t Ymax)
- : AliCorrectionMatrix(name, title)
-{
- //
- // constructor
- //
-
- // do not add this hists to the directory
- Bool_t oldStatus = TH1::AddDirectoryStatus();
- TH1::AddDirectory(kFALSE);
-
- fhMeas = new TH2F("measured", Form("%s measured", GetTitle()), nBinX, Xmin, Xmax, nBinY, Ymin, Ymax);
- fhGene = new TH2F("generated", Form("%s generated", GetTitle()), nBinX, Xmin, Xmax, nBinY, Ymin, Ymax);
- fhCorr = new TH2F("correction", Form("%s correction", GetTitle()), nBinX, Xmin, Xmax, nBinY, Ymin, Ymax);
-
- TH1::AddDirectory(oldStatus);
-
- fhMeas->Sumw2();
- fhGene->Sumw2();
- fhCorr->Sumw2();
-}
-
-//____________________________________________________________________
-AliCorrectionMatrix2D::AliCorrectionMatrix2D(const Char_t* name, const Char_t* title,
- Int_t nBinX, Float_t *X, Int_t nBinY, Float_t *Y)
- : AliCorrectionMatrix(name, title)
-{
- //
- // constructor
- //
-
- // do not add this hists to the directory
- Bool_t oldStatus = TH1::AddDirectoryStatus();
- TH1::AddDirectory(kFALSE);
-
- fhMeas = new TH2F("measured", Form("%s measured",title), nBinX, X, nBinY, Y);
- fhGene = new TH2F("generated", Form("%s generated",title), nBinX, X, nBinY, Y);
- fhCorr = new TH2F("correction", Form("%s correction",title), nBinX, X, nBinY, Y);
-
- TH1::AddDirectory(oldStatus);
-
- fhMeas->Sumw2();
- fhGene->Sumw2();
- fhCorr->Sumw2();
-}
-
-//____________________________________________________________________
-AliCorrectionMatrix2D::~AliCorrectionMatrix2D()
-{
- //
- // destructor
- //
-
- // histograms already deleted in base class
-}
-
-TH2* AliCorrectionMatrix2D::GetGeneratedHistogram() const
-{
- // return generated histogram casted to correct type
- return dynamic_cast<TH2*> (fhGene);
-}
-
-TH2* AliCorrectionMatrix2D::GetMeasuredHistogram() const
-{
- // return measured histogram casted to correct type
- return dynamic_cast<TH2*> (fhMeas);
-}
-
-//____________________________________________________________________
-TH1* AliCorrectionMatrix2D::Get1DCorrectionHistogram(const Char_t* opt, Float_t min, Float_t max, Bool_t binomialErrors)
-{
- //
- // integrate the correction over one variable
- //
-
- TH1D* meas1D = 0;
- TH1D* gene1D = 0;
-
- if (strcmp(opt,"x")==0) {
- Int_t binMin = fhMeas->GetYaxis()->FindBin(min);
- Int_t binMax = fhGene->GetYaxis()->FindBin(max);
-
- if (min>=max) {
- meas1D = ((TH2F*)fhMeas)->ProjectionX();
- gene1D = ((TH2F*)fhGene)->ProjectionX();
- }
- else {
- Printf("Getting 1D map. Including y-bins %d to %d", binMin, binMax);
-
- meas1D = ((TH2F*)fhMeas)->ProjectionX(Form("%s_x_pm", GetName()),binMin,binMax);
- gene1D = ((TH2F*)fhGene)->ProjectionX(Form("%s_x_pg", GetName()),binMin,binMax);
- }
- }
- else if (strcmp(opt,"y")==0) {
- Int_t binMin = fhMeas->GetXaxis()->FindBin(min);
- Int_t binMax = fhMeas->GetXaxis()->FindBin(max);
-
- if (min>=max) {
- meas1D = ((TH2F*)fhMeas)->ProjectionY();
- gene1D = ((TH2F*)fhGene)->ProjectionY();
- }
- else {
- Printf("Getting 1D map. Including x-bins %d to %d \n", binMin, binMax);
-
- meas1D = ((TH2F*)fhMeas)->ProjectionY(Form("%s_y_pm", GetName()), binMin, binMax);
- gene1D = ((TH2F*)fhGene)->ProjectionY(Form("%s_y_pg", GetName()), binMin, binMax);
- }
- }
- else {
- Printf("ERROR: Invalid option");
- return 0;
- }
-
- if (!binomialErrors)
- {
- // set the errors on gene manually, and clear the ones on meas.
- gene1D->Sumw2();
- for (Int_t bin=0; bin <= gene1D->GetNbinsX()+1; bin++)
- {
- gene1D->SetBinError(bin, TMath::Sqrt(gene1D->GetBinContent(bin)));
- meas1D->SetBinError(bin, 0);
- }
- }
-
- gene1D->SetName(Form("corr_1D_%s",fName.Data()));
- gene1D->SetTitle(Form("corr_1D_%s",fName.Data()));
-
- TH1* divided = (TH1*) gene1D->Clone(Form("corr_1D_%s",fName.Data()));
- divided->Reset();
-
- divided->Divide(gene1D, meas1D, 1, 1, (binomialErrors) ? "B" : "");
-
- Printf("%p %p", gene1D, meas1D);
-
- return (TH1F*)divided;
-}
-
-//____________________________________________________________________
-void AliCorrectionMatrix2D::FillMeas(Float_t ax, Float_t ay)
-{
- // add value to measured histogram
- ((TH2F*)fhMeas)->Fill(ax, ay);
-}
-
-//____________________________________________________________________
-void AliCorrectionMatrix2D::FillGene(Float_t ax, Float_t ay)
-{
- // add value to generated histogram
- ((TH2F*)fhGene)->Fill(ax, ay);
-}
-
-//____________________________________________________________________
-Float_t AliCorrectionMatrix2D::GetCorrection(Float_t ax, Float_t ay) const
-{
- // returns a value of the correction map
- return fhCorr->GetBinContent(fhCorr->FindBin(ax,ay));
-}
-
-//____________________________________________________________________
-void AliCorrectionMatrix2D::RemoveEdges(Float_t cut, Int_t nBinsXedge, Int_t nBinsYedge)
-{
- // remove edges of correction histogram by removing
- // - bins with content less than cut
- // - bins next to bins with zero bin content
-
- Int_t nBinsX = fhCorr->GetNbinsX();
- Int_t nBinsY = fhCorr->GetNbinsY();
-
- // set bin content to zero for bins with content smaller cut
- for (Int_t bx=0; bx<=nBinsX; bx++) {
- for (Int_t by=0; by<=nBinsY; by++) {
- if (fhCorr->GetBinContent(bx,by)>cut) {
- fhCorr->SetBinContent(bx,by,0);
- fhCorr->SetBinError(bx,by,0);
- }
- }
- }
-
- // set bin content to zero for bins next to bins with zero
- TH2F* tmp = (TH2F*)fhCorr->Clone("tmp");
- tmp->Reset();
-
- Bool_t done = kFALSE;
- Int_t nBinsXCount = 0;
- Int_t nBinsYCount = 0;
- while (!done) {
- if (nBinsXCount<nBinsXedge)
- for (Int_t bx=0; bx<=nBinsX; bx++) {
- for (Int_t by=0; by<=nBinsY; by++) {
- if ((fhCorr->GetBinContent(bx+1,by)==0)||
- (fhCorr->GetBinContent(bx-1,by)==0))
- tmp->SetBinContent(bx,by,1);
-
- }
- }
- if (nBinsYCount<nBinsYedge)
- for (Int_t bx=0; bx<=nBinsX; bx++) {
- for (Int_t by=0; by<=nBinsY; by++) {
- if ((fhCorr->GetBinContent(bx,by+1)==0)||
- (fhCorr->GetBinContent(bx,by-1)==0))
- tmp->SetBinContent(bx,by,1);
- }
- }
- for (Int_t bx=0; bx<=nBinsX; bx++) {
- for (Int_t by=0; by<=nBinsY; by++) {
- if (tmp->GetBinContent(bx,by)==1) {
- fhCorr->SetBinContent(bx,by,0);
- fhCorr->SetBinError(bx,by,0);
- }
- }
- }
- nBinsXCount++;
- nBinsYCount++;
- if ((nBinsXCount>=nBinsXedge)&&(nBinsYCount>=nBinsYedge)) done=kTRUE;
- }
- tmp->Delete();
-
-}
-
-//____________________________________________________________________
-void AliCorrectionMatrix2D::Rebin(Int_t x, Int_t y)
-{
- // rebins the histograms, recalculates the correction
-
- GetGeneratedHistogram()->Rebin2D(x, y);
- GetMeasuredHistogram()->Rebin2D(x, y);
- GetCorrectionHistogram()->Rebin2D(x, y);
- Divide();
-}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff