RGraphFunctions.hh

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//======================================================================
/*! \file RGraphFunctions.hh
 *
 *  Include file for functions related to ROOT TGraph class.
 */
//======================================================================

#ifndef R_GRAPH_FUNCTIONS_HH
#define R_GRAPH_FUNCTIONS_HH

#include "RBaseFunctions.hh"
#include "GOptionString.hh"

#include <TGraph.h>
#include <TGraphErrors.h>
#include <TGraph2D.h>
#include <TGraph2DErrors.h>
#include <TH1.h>
#include <TH2.h>

#include <TPolyLine.h>
#include <TPolyLine3D.h>

#include <TTree.h>
#include <TBranch.h>
#include <TLeaf.h>
#include <TTreeFormula.h>

//======================================================================
/** @name Graphs simple functions */
//@{

//----------------------------------------------------------------------
//  Graph creation
extern TGraph * RGraphDifference ( int n,
                                   const Double_t * t1, const Double_t * t2 );
extern TGraph * RGraphDifference ( int n,
                                   const Double_t xmin, const Double_t xmax,
                                   const Double_t * t1, const Double_t * t2 );

extern TGraphErrors * RCreateYmeanGraph ( TH2 * hptr, const string & options );

//----------------------------------------------------------------------
// Graphs concatenation
extern TGraphErrors * RConcatGraph ( TGraphErrors * gtot, const TGraphErrors * gnew );
extern TGraphErrors * RConcatGraph ( TGraphErrors * gtot, const TGraph * gnew );
extern TGraph       * RConcatGraph ( TGraph * gtot, const TGraph * gnew );

//@}


//======================================================================
/** @name Graph from extraction of sub-sets of data */
//@{

// creation of a serie of TGraphErrors with constant value p[i]
extern Int_t RGetGraphSeries ( const Int_t n,
                               const Double_t * p,
                               const Double_t * x,
                               const Double_t * y,
                               const Double_t * dx,
                               const Double_t * dy,
                               TGraphErrors * & tab_gr,
                               Double_t     * & tab_p,
                               const Double_t   eps = 1.e-6 );

// creation of a serie of TPolyLine with constant value p[i]
extern Int_t RGetPolyLineSeries ( const Int_t n,
                                  const Double_t * p,
                                  const Double_t * x,
                                  const Double_t * y,
                                  TPolyLine    * & tab_l,
                                  Double_t     * & tab_p,
                                  const Double_t   eps = 1.e-6 );

// creation of a serie of TPolyLine3D with constant value p[i]
extern Int_t RGetPolyLine3DSeries ( const Int_t n,
                                    const Double_t * p,
                                    const Double_t * x,
                                    const Double_t * y,
                                    const Double_t * z,
                                    TPolyLine3D  * & tab_l,
                                    Double_t     * & tab_p,
                                    const Double_t   eps = 1.e-6 );

//@}

//======================================================================
/** @name Graph from a TTree */
//@{

extern TGraph       * RGraphFromTree ( TTree & tree,
                                       const string & varx, const string & vary,
                                       const string & selection = "" );

extern TGraphErrors * RGraphFromTree ( TTree & tree,
                                       const string & varx, const string & vary,
                                       const string & errx, const string & erry,
                                       const string & selection );

extern TGraphErrors ** RGraphSerieFromTree ( TTree & tree,
                                             const string & varc, u_int n, double ctab[],
                                             const string & varx, const string & vary,
                                             const string & errx = "", const string & erry = "",
                                             const string & selection = "",
                                             double prec = 0.001 );

//@}


//----------------------------------------------------------------------
#endif