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#ifndef GFUTILSGFOVERLAY_H
#define GFUTILSGFOVERLAY_H
#include "TString.h"
#include "TObjArray.h"
#include <vector>
// Author: Gero Flucke
// Date: October 2007
// last update: $Date: 2012/03/29 08:48:50 $
// by: $Author: flucke $
//
// Class to overlay hists with same names from (several) different files.
// Constructor argument 'fileLegendList' is a comma separated list of files
// and the legend entry corresponding to it, e.g.
// "file1.root=label1,file2.root=label2,..."
// Finds recursively all hists in all directories of the first file.
// The hists of one directory are grouped in one layer of the GFHistManager.
//
// Following options are recognised:
// 1)
// If 'option' contains 'norm', the hists are normalised to their number of entries.
// 2)
// If 'option' contains 'skip(XYZ)' or 'skipHist(XYZ)', hists are skipped if their names
// contain 'XYZ', similarly with 'skip(XYZ)' or 'skipDir(XYZ)' for directories.
// Can be given several times.
// 3)
// If 'option' contains 'name(XYZ)' or 'nameHist(XYZ)', hists are skipped if their names
// do NOT contain 'XYZ', similarly with 'name(XYZ)' or 'nameHist(XYZ)' for directories.
// Can be given several times.
// 4)
// If 'option' contains 'sumperdir', for each directory hists created containing
// the means and RMS of all (1D-)hists of that directory and puts these in the following
// 'layer' of the GFHistManager.
//
// (Lower and upper case are ignored for 'norm', 'skip', 'name' and 'sumperdir'.)
//
// CAVEAT:
// If you want to skip all hists that contain 'Norm' in their name by option 'skip(Norm)',
// this will also lead to the normalisation option being switched on...
class TFile;
class TDirectory;
class GFHistManager;
class TH1;
class GFOverlay {
public:
GFOverlay(const char *fileLegendList, Option_t *option = "");
~GFOverlay();
GFHistManager* GetHistManager() { return fHistMan;}
private:
TObjArray FindAllBetween(const TString &text, const char *startStr, const char *endStr) const;
TString FindNextBetween(const TString &input, Ssiz_t startInd,
const char *startStr, const char *endStr) const;
bool OpenFilesLegends(const char *fileLegendList);
void Overlay(const TObjArray &dirs, const TObjArray &legends);
bool KeyContainsListMember(const TString &key, const TObjArray &list) const;
TObjArray GetTypeWithNameFromDirs(const TClass *aType, const char *name,
const TObjArray &dirs) const;
Int_t AddHistsAt(const TObjArray &hists, const TObjArray &legends, Int_t layer,Int_t pos);
void CreateFillMeanRms(const TObjArray &hists, Int_t layer, const char *dirName,
std::vector<TH1*> &meanHists, std::vector<TH1*> &rmsHists) const;
GFHistManager *fHistMan;
Int_t fLayer;
TObjArray fFiles;
TObjArray fLegends;
Bool_t fNormalise;
Bool_t fSummaries;
TObjArray fDirNames;
TObjArray fSkipDirNames;
TObjArray fHistNames;
TObjArray fSkipHistNames;
};
#endif
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