JPlot1D.cc File Reference

General purpose plot program for 1D ROOT objects. More...

#include <string>
#include <iostream>
#include <iomanip>
#include <vector>
#include <set>
#include <cmath>
#include "TROOT.h"
#include "TFile.h"
#include "TClass.h"
#include "TApplication.h"
#include "TCanvas.h"
#include "TKey.h"
#include "TStyle.h"
#include "TAttMarker.h"
#include "TAttLine.h"
#include "TH1.h"
#include "TH2.h"
#include "TH3.h"
#include "TF1.h"
#include "TF2.h"
#include "THStack.h"
#include "TGraph.h"
#include "TGraphErrors.h"
#include "TMultiGraph.h"
#include "TProfile.h"
#include "TEllipse.h"
#include "TMarker.h"
#include "TLine.h"
#include "TLegend.h"
#include "TString.h"
#include "TRegexp.h"
#include "TText.h"
#include "JTools/JRange.hh"
#include "JLang/JSinglePointer.hh"
#include "JROOT/JStyle.hh"
#include "JROOT/JCanvas.hh"
#include "JROOT/JMarkerAttributes.hh"
#include "JROOT/JLineAttributes.hh"
#include "JROOT/JLegend.hh"
#include "JGizmo/JRootObjectID.hh"
#include "JGizmo/JRootObject.hh"
#include "JGizmo/JGizmoToolkit.hh"
#include "Jeep/JPrint.hh"
#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"

Go to the source code of this file.

Functions
int	main (int argc, char **argv)

Detailed Description

General purpose plot program for 1D ROOT objects.

The option -f corresponds to <file name>:<object name>.

Author

mdejong

Definition in file JPlot1D.cc.

Function Documentation

int main	(	int	argc,
		char **	argv
	)

Definition at line 88 of file JPlot1D.cc.

{
  using namespace std;
  using namespace JPP;

  typedef JRange<double>  JRange_t;

  vector<JRootObjectID>   inputFile;
  string                  outputFile;
  JCanvas                 canvas;
  int                     stats;
  string                  legend;
  JRange_t                X;
  JRange_t                Y;
  JRange_t                Z;
  JCounter                logx;
  bool                    logy;
  bool                    logz;
  char                    project;
  string                  xLabel;
  string                  yLabel;
  JCounter                drawLine;
  bool                    fillArea;
  int                     lineWidth;
  double                  markerSize;
  string                  option;
  set<char>               grid;
  bool                    batch;
  string                  title;
  map<string, int>        Ndivisions;
  int                     group;
  int                     debug;
  string                  xTimeFormat;
 
  try {

    JParser<> zap("General purpose plot program for 1D ROOT objects.");
    
    zap['f'] = make_field(inputFile,  "<input file>:<object name>");
    zap['o'] = make_field(outputFile, "graphics output")                    = "";
    zap['w'] = make_field(canvas,     "size of canvas <nx>x<ny> [pixels]")  = JCanvas(500, 500);
    zap['s'] = make_field(stats)                                            = -1;
    zap['L'] = make_field(legend,     "position legend e.g. TR")            = "", "TL", "TR", "BR", "BL";
    zap['x'] = make_field(X,          "abscissa range")                     = JRange_t();
    zap['y'] = make_field(Y,          "ordinate range")                     = JRange_t();
    zap['z'] = make_field(Z,          "ordinate range of projection)")      = JRange_t();
    zap['X'] = make_field(logx,       "logarithmic x-axis (-XX log10 axis)");
    zap['Y'] = make_field(logy,       "logarithmic y-axis");
    zap['Z'] = make_field(logz,       "logarithmic y-axis; after projection");
    zap['P'] = make_field(project,    "projection")                         = '\0', 'x', 'X', 'y', 'Y';
    zap['>'] = make_field(xLabel,     "x-axis label")                       = "";
    zap['^'] = make_field(yLabel,     "y-axis label")                       = "";
    zap['C'] = make_field(drawLine);
    zap['F'] = make_field(fillArea);
    zap['l'] = make_field(lineWidth,  "line width")                         = 2;
    zap['S'] = make_field(markerSize, "marker size")                        = 1.0;
    zap['O'] = make_field(option,     "plotting option")                    = "";
    zap['G'] = make_field(grid,       "grid lines [X][Y]")                  = JPARSER::initialised();
    zap['B'] = make_field(batch,      "batch processing");
    zap['T'] = make_field(title,      "graphics title (" 
                          << "\"" << JName_t  << "\" -> ROOT name; "
                          << "\"" << JTitle_t << "\" -> ROOT title)")      = "KM3NeT preliminary";
    zap['N'] = make_field(Ndivisions, "axis divisioning (e.g. \"X 505\")")  = JPARSER::initialised();
    zap['g'] = make_field(group,      "group colour codes of objects")      = 1;
    zap['t'] = make_field(xTimeFormat, "set time format for x-axis, e.g. \%d\\/\%m\\/\\%y%F1970-01-01 00:00:00") = "";
    zap['d'] = make_field(debug)      = 0;
     
    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }


  gROOT->SetBatch(batch);

  TApplication* tp = new TApplication("user", NULL, NULL);
  TCanvas*      cv = new TCanvas("c1", "c1", canvas.x, canvas.y);

  JSinglePointer<TStyle> gStyle(new JStyle("gplot", cv->GetWw(), cv->GetWh()));

  gROOT->SetStyle("gplot");
  gROOT->ForceStyle();


  cv->SetFillStyle(4000);
  cv->SetFillColor(kWhite);
  cv->Divide(1,1);
  cv->cd(1);
    

  JMarkerAttributes::getInstance().setMarkerSize(markerSize);
  JLineAttributes  ::getInstance().setLineWidth (lineWidth);


  Double_t xmin = numeric_limits<double>::max();
  Double_t xmax = numeric_limits<double>::lowest();

  Double_t ymin = numeric_limits<double>::max();
  Double_t ymax = numeric_limits<double>::lowest();


  vector<JRootObject> listOfObjects;

  const bool px = (project == 'x' || project == 'X');  // projection on x-axis of (2|3)D histogram
  const bool py = (project == 'y' || project == 'Y');  // projection on y-axis of (2|3)D histogram
  const bool pz = (project == 'z' || project == 'Z');  // projection on z-axis of 3D histogram

  logy = (logy || logz);

  if (px) {
    swap(Y, Z);   // Y becomes range in TH2::ProjectionX() and Z becomes y-axis range
  }

  if (py) {
    swap(X, Z);   // X becomes range in TH2::ProjectionY()
    swap(Y, X);   // Y becomes x-axis range and Z becomes y-axis range
  }

  TH1* master = NULL;
  
  for (vector<JRootObjectID>::const_iterator input = inputFile.begin(); input != inputFile.end(); ++input) {

    DEBUG("Input: " << *input << endl);

    TDirectory* dir = getDirectory(*input);

    if (dir == NULL) {
      ERROR("File: " << input->getFullFilename() << " not opened." << endl);
      continue;
    }

    const TRegexp regexp(input->getObjectName());

    TIter iter(dir->GetListOfKeys());

    for (TKey* key; (key = (TKey*) iter.Next()) != NULL; ) {

      const TString tag(key->GetName());

      DEBUG("Key: " << tag << " match = " << tag.Contains(regexp) << endl);
        
      // option match

      if (tag.Contains(regexp) && isTObject(key)) {

        if        (title == JName_t) {
          title = key->GetName();
        } else if (title == JTitle_t) {
          title = key->GetTitle();
        }

        JRootObject object(key->ReadObj());

        TAttMarker marker = JMarkerAttributes::getInstance().get(0);
        TAttLine   line   = JLineAttributes  ::getInstance().get(0);

        if (group > 1)
          marker.SetMarkerColor(JMarkerAttributes::getInstance().get(listOfObjects.size()/group).GetMarkerColor());
        else
          marker = JMarkerAttributes::getInstance().get(listOfObjects.size());

        if (drawLine == 1)
          line = JLineAttributes::getInstance().get(listOfObjects.size());
        else
          line.SetLineColor(marker.GetMarkerColor());

        // projections
        
        try {

          TProfile& h1 = dynamic_cast<TProfile&>(*object);

          object = h1.ProjectionX();
        }
        catch(exception&) {}

        try {
            
          TH2& h2 = dynamic_cast<TH2&>(*object);

          if        (px) {

            if (Z != JRange_t())
              object = h2.ProjectionX(MAKE_CSTRING(h2.GetName() << "_px" << LABEL_TERMINATOR << listOfObjects.size()), 
                                      h2.GetYaxis()->FindBin(Z.getLowerLimit()),
                                      h2.GetYaxis()->FindBin(Z.getUpperLimit()) - 1);
            else
              object = h2.ProjectionX(MAKE_CSTRING(h2.GetName() << "_px" << LABEL_TERMINATOR << listOfObjects.size()), 
                                      1,
                                      h2.GetYaxis()->GetNbins());

          } else if (py) {
            
            if (Z != JRange_t())
              object = h2.ProjectionY(MAKE_CSTRING(h2.GetName() << "_py" << LABEL_TERMINATOR << listOfObjects.size()), 
                                      h2.GetXaxis()->FindBin(Z.getLowerLimit()),
                                      h2.GetXaxis()->FindBin(Z.getUpperLimit()) - 1);
            else
              object = h2.ProjectionY(MAKE_CSTRING(h2.GetName() << "_py" << LABEL_TERMINATOR << listOfObjects.size()), 
                                      1,
                                      h2.GetXaxis()->GetNbins());

          } else {

            ERROR("For 2D histograms, use option option -P for projections or use JPlot2D" << endl);

            continue;
          }
        }           
        catch(exception&) {}

        try {
            
          TH3& h3 = dynamic_cast<TH3&>(*object);

          if        (px) {

            object = h3.ProjectionX(MAKE_CSTRING(h3.GetName() << "_px" << LABEL_TERMINATOR << listOfObjects.size()));

          } else if (py) {
            
            object = h3.ProjectionY(MAKE_CSTRING(h3.GetName() << "_py" << LABEL_TERMINATOR << listOfObjects.size()));

          } else if (pz) {
            
            object = h3.ProjectionZ(MAKE_CSTRING(h3.GetName() << "_pz" << LABEL_TERMINATOR << listOfObjects.size()));

          } else {

            ERROR("For 3D histograms, use option option -P for projections or use JPlot2D -P <projection>" << endl);

            continue;
          }
        }           
        catch(exception&) {}

        // colouring
        
        try { 
          if (dynamic_cast<TMarker*>(object.get()) == NULL) {
            dynamic_cast<TAttMarker&>(*object) = marker; 
          }     }
        catch(exception&) {}

        try {
          if (dynamic_cast<TLine*>(object.get())   == NULL) {
            dynamic_cast<TAttLine&>  (*object) = line;
          }
        }
        catch(exception&) {}
        
        if (fillArea) {

          try { 
            
            TAttFill& fill = dynamic_cast<TAttFill&>(*object);
              
            fill.SetFillColor(marker.GetMarkerColor()); 
          } 
          catch(exception&) {}
        }

        // set errors
        
        if (drawLine) {       

          try {

            TH1& h1 = dynamic_cast<TH1&>(*object);

            for (int i = 1; i <= h1.GetNbinsX(); ++i) {
              h1.SetBinError(i, 0.0);
            }
          }
          catch(exception&) {}

          try {

            TGraphErrors& g1 = dynamic_cast<TGraphErrors&>(*object);

            for (Int_t i = 0; i != g1.GetN(); ++i) {
              g1.GetEX()[i] = 0.0;
              g1.GetEY()[i] = 0.0;
            }
          }
          catch(exception&) {}
        }
        
        // min-max
        
        try {

          TH1& h1 = dynamic_cast<TH1&>(*object);

          h1.SetStats(stats != -1);
            
          xmin = min(xmin, h1.GetXaxis()->GetXmin());
          xmax = max(xmax, h1.GetXaxis()->GetXmax());       
          ymin = min(ymin, logy ? h1.GetMinimum(0.0) : h1.GetMinimum());
          ymax = max(ymax, h1.GetMaximum());
        }
        catch(exception&) {}

        try {

          TGraph& g1 = dynamic_cast<TGraph&>(*object);

          for (Int_t i = 0; i != g1.GetN(); ++i) {

            xmin = min(xmin, g1.GetX()[i]);
            xmax = max(xmax, g1.GetX()[i]);
            
            if (!logy || g1.GetY()[i] > 0.0) {
              ymin = min(ymin, g1.GetY()[i]);
              ymax = max(ymax, g1.GetY()[i]);
            }
          }
        }
        catch(exception&) {}

        try {

          TGraphErrors& g1 = dynamic_cast<TGraphErrors&>(*object);

          for (Int_t i = 0; i != g1.GetN(); ++i) {
            if (!logy || g1.GetY()[i] - g1.GetEY()[i] > 0.0) { ymin = min(ymin, g1.GetY()[i] - g1.GetEY()[i]); }
            if (!logy || g1.GetY()[i] + g1.GetEY()[i] > 0.0) { ymax = max(ymax, g1.GetY()[i] + g1.GetEY()[i]); }
          }
        }
        catch(exception&) {}

        try {

          TMultiGraph& m1 = dynamic_cast<TMultiGraph&>(*object);

          for (TIter i1(m1.GetListOfGraphs()); TGraph* g1 = dynamic_cast<TGraph*>(i1()); ) {
            
            for (Int_t i = 0; i != g1->GetN(); ++i) {
              
              xmin = min(xmin, g1->GetX()[i]);
              xmax = max(xmax, g1->GetX()[i]);
              
              if (!logy || g1->GetY()[i] > 0.0) {
                ymin = min(ymin, g1->GetY()[i]);
                ymax = max(ymax, g1->GetY()[i]);
              }
            }
          }
        }
        catch(exception&) {}

        try {

          TF2& f2 = dynamic_cast<TF2&>(*object);
          TF1* f1 = NULL;
          
          TString formula = f2.GetExpFormula();
          TString _z_     = TString::Format("%f", 0.5 * (Z.getLowerLimit() + Z.getUpperLimit()));
                                     
          double __xmin;
          double __xmax;
          double __ymin;
          double __ymax;

          f2.GetRange(__xmin, __ymin, __xmax, __ymax);

          if        (px) {

            formula.ReplaceAll("y", _z_);

            f1 = new TF1(MAKE_CSTRING(f2.GetName() << "_px" << LABEL_TERMINATOR << listOfObjects.size()), formula);

            f1->SetRange(__xmin, __xmax);
            
          } else if (py) {

            formula.ReplaceAll("x", _z_);
            formula.ReplaceAll("y", "x");

            f1 = new TF1(MAKE_CSTRING(f2.GetName() << "_py" << LABEL_TERMINATOR << listOfObjects.size()), formula);
                                    
            f1->SetRange(__ymin, __ymax);

          } else {

            ERROR("For 2D functions, use option option -P for projections or use JPlot2D" << endl);

            continue;
          }

          DEBUG("TF1: " << f1->GetExpFormula() << endl);
          
          f1->SetParameters(f2.GetParameters());
          
          object = f1;
        }
        catch(exception&) {}

        try {

          TF1& f1 = dynamic_cast<TF1&>(*object);

          double __xmin;
          double __xmax;

          f1.GetRange(__xmin, __xmax);

          xmin = min(xmin, __xmin);
          xmax = max(xmax, __xmax);
          ymin = min(ymin, f1.GetMinimum());
          ymax = max(ymax, f1.GetMaximum());
        }
        catch(exception&) {}

        try {
            
          THStack& hs = dynamic_cast<THStack&>(*object);

          NOTICE("THStack" << endl);

          TIterator* iterator = hs.GetHists()->MakeIterator();

          for (size_t index = 1; TObject* i = iterator->Next(); ++index) {
              
            TH1& h1 = dynamic_cast<TH1&>(*i);

            NOTICE("TH1[" << index << "] " << h1.GetName() << endl);

            xmin = min(xmin, h1.GetXaxis()->GetXmin());
            xmax = max(xmax, h1.GetXaxis()->GetXmax());
            
            ymin = min(ymin, logy ? h1.GetMinimum(0.0) : h1.GetMinimum());
            ymax = max(ymax, h1.GetMaximum());

            h1.SetLineWidth(1);
            h1.SetLineColor(kBlack);

            h1.SetFillColor(JMarkerAttributes::getInstance().get(index).GetMarkerColor());
          }
        }
        catch(exception&) {}

        try {

          TLine& h1 = dynamic_cast<TLine&>(*object);

          xmin = min(xmin, h1.GetX1());
          xmax = max(xmax, h1.GetX2());
          ymin = min(ymin, h1.GetY1());
          ymax = max(ymax, h1.GetY2());
        }
        catch(exception&) {}

        // label
        
        for (TString buffer[] = { object.getLabel(), input->getFilename().c_str(), "" }, *i = buffer; *i != ""; ++i) {

          *i = (*i)(TRegexp("\\[.*\\]"));

          if (i->Length() > 2) {
            object.setLabel((*i)(1, i->Length() - 2));
          }
        }

        DEBUG("Add object: " << tag << " with label <" << object.getLabel() << ">" << endl);

        if (master == NULL) {
          master = dynamic_cast<TH1*>(object.get());
        }

        listOfObjects.push_back(object);
      }
    }
  }

  if (listOfObjects.empty()) {
    ERROR("Nothing to draw." << endl);
  }

  for (vector<JRootObject>::iterator i = listOfObjects.begin(); i != listOfObjects.end(); ++i) {

    // set line attributes of associated functions
    // for single objects, change colour if same range else change style
    // for multiple objecs, keep colour and change style

    TH1*         h1 = dynamic_cast<TH1*>        (i->get());
    TGraph*      g1 = dynamic_cast<TGraph*>     (i->get());
    TMultiGraph* m1 = dynamic_cast<TMultiGraph*>(i->get());
    TAttLine*    ls = dynamic_cast<TAttLine*>   (i->get());

    TList        list;
    TIterator*   iterator = NULL;

    if        (h1 != NULL) {

      iterator = h1->GetListOfFunctions()->MakeIterator();

    } else if (g1 != NULL) {

      iterator = g1->GetListOfFunctions()->MakeIterator();

    } else if (m1 != NULL) {

      for (TIter i1(m1->GetListOfGraphs()); TGraph* gi = dynamic_cast<TGraph*>(i1()); ) {
        for (TIter i2(gi->GetListOfFunctions()); TF1* fi = dynamic_cast<TF1*>(i2()); ) {
          list.Add(fi);
        }
      }

      iterator = list.MakeIterator();
    }

    if (iterator != NULL) {

      Double_t x1[] = { numeric_limits<Double_t>::max(),    numeric_limits<Double_t>::max() };
      Double_t x2[] = { numeric_limits<Double_t>::lowest(), numeric_limits<Double_t>::lowest() };

      for (int nf = 0, ns = 0, nc = 1; TF1* f1 = (TF1*) iterator->Next(); ++nf) {

        f1->GetRange(x1[1], x2[1]);
        f1->SetNpx(1000);

        dynamic_cast<TAttLine&>(*f1) = JLineAttributes::getInstance().get(0);

        if (listOfObjects.size() == 1) {

          if      (x1[0] == x1[1] && 
                   x2[0] == x2[1])
            ++nc;                       // change colour
          else if (nf != 0)
            ++ns;                       // change style

          f1->SetLineStyle(JLineAttributes  ::getInstance().get(ns).GetLineStyle());
          f1->SetLineColor(JMarkerAttributes::getInstance().get(nc).GetMarkerColor());

        } else {

          // keep colour of base object and accordingly modify line style.

          f1->SetLineColor(ls->GetLineColor());
          f1->SetLineStyle(JLineAttributes::getInstance().get(ns++).GetLineStyle());
        }

        x1[0] = x1[1];
        x2[0] = x2[1];

        // set limits

        double __xmin;
        double __xmax;

        f1->GetRange(__xmin, __xmax);

        ymin = min(ymin, f1->GetMinimum(__xmin, __xmax));
        ymax = max(ymax, f1->GetMaximum(__xmin, __xmax));
      }
    }
  }

  // plot frame

  if (X != JRange_t()) { 
    xmin = X.getLowerLimit();
    xmax = X.getUpperLimit();
  }

  if (Y != JRange_t()) {
    ymin = Y.getLowerLimit();
    ymax = Y.getUpperLimit();
  } else {
    setRange(ymin, ymax, logy);
  }

  cv->cd(1);

  if (!listOfObjects.empty()) {

    if (master == NULL) {
 
      master = new TH1D(MASTER.c_str(), NULL, 100, xmin, xmax);

      master->SetStats(kFALSE);

      for (Int_t i = 1; i <= master->GetXaxis()->GetNbins(); ++i) {
        master->SetBinContent(i, ymin);
      }
    }
  }

  if (master == NULL) {

    TText* p = new TText(0.5, 0.5, MAKE_CSTRING("No data"));

    p->SetTextAlign(21);
    p->SetTextAngle(45);
    p->Draw();

  } else {

    if (logx) { gPad->SetLogx(); }
    if (logy) { gPad->SetLogy(); }

    master->GetXaxis()->SetRangeUser(xmin, xmax);
    master->SetTitle(title.c_str());
    
    if (logx > 1) {
      setLogarithmicX(master);
    }

    master->SetMinimum(ymin);
    master->SetMaximum(ymax);
    
    if (xLabel != "") { master->GetXaxis()->SetTitle(xLabel.c_str()); master->GetXaxis()->CenterTitle(true); }
    if (yLabel != "") { master->GetYaxis()->SetTitle(yLabel.c_str()); master->GetYaxis()->CenterTitle(true); }
    
    master->GetXaxis()->SetMoreLogLabels((logx == 1 && log10(xmax/xmin) < 2) ||
                                         (logx >  1 &&      (xmax-xmin) < 2));
    
    master->GetYaxis()->SetMoreLogLabels( logy      && log10(ymax/ymin) < 2);
    master->GetYaxis()->SetNoExponent   ( logy      && log10(ymax/ymin) < 2);
    
    for (map<string, int>::const_iterator i = Ndivisions.begin();  i != Ndivisions.end(); ++i) {
      master->SetNdivisions(i->second, i->first.c_str());
    }

    if (xTimeFormat != "") {

      master->GetXaxis()->SetTimeDisplay(1);

      if        (xTimeFormat == "utc") {
        master->GetXaxis()->SetTimeFormat("#splitline{}{#splitline{%d-%m-%y}{ %H:%M}}");
        master->GetXaxis()->SetTimeOffset(0.0, "gmt");
      } else if (xTimeFormat == "UTC") {
        master->GetXaxis()->SetTimeFormat("%d-%m-%y");
        master->GetXaxis()->SetTimeOffset(0.0, "gmt");
      } else {
        master->GetXaxis()->SetTimeFormat(xTimeFormat.c_str());
      }
    }

    master->Draw(option.c_str());
  }

  if (logx > 1) {
    for (vector<JRootObject>::iterator i = listOfObjects.begin(); i != listOfObjects.end(); ++i) {
      if (dynamic_cast<TH1*>(i->get()) != master) {
        if      (setLogX<TH1>         (i->get())) {}
        else if (setLogX<TF1>         (i->get())) {}
        else if (setLogX<TGraphErrors>(i->get())) {}
        else if (setLogX<TGraph>      (i->get())) {}
        else if (setLogX<TMultiGraph> (i->get())) {}
        else if (setLogX<TLine>       (i->get())) {}
        else if (setLogX<TEllipse>    (i->get())) {}
      }
    }
  }

  if (grid.count('x') || grid.count('X')) { gPad->SetGridx(); }
  if (grid.count('y') || grid.count('Y')) { gPad->SetGridy(); }

  if (stats != -1)
    gStyle->SetOptStat(stats);
  else  
    gStyle->SetOptFit(kFALSE);


  for (vector<JRootObject>::const_iterator i = listOfObjects.begin(); i != listOfObjects.end(); ++i) {

    DEBUG("Draw " << (*i)->GetName() << ' ' << (*i)->GetTitle() << endl);

    string buffer(option);

    //if (!dynamic_cast<THStack*>(i->get())) {
    //  buffer += "SAMES";
    //}

    buffer += "SAME";

    TF1*         f1 = dynamic_cast<TF1*>        (i->get());
    TGraph*      g1 = dynamic_cast<TGraph*>     (i->get());
    TMultiGraph* q1 = dynamic_cast<TMultiGraph*>(i->get());

    if (f1 != NULL) {
      f1->SetNpx(1000);
    }

    if (g1 != NULL) {
      if (g1->GetN() > 1 && drawLine)
        buffer += "L";       // drawing cut line
      else
        buffer += "P";       // drawing point(s)
    }

    if (q1 != NULL) {
      
      for (TIter i1(q1->GetListOfGraphs()); TGraph* gi = dynamic_cast<TGraph*>(i1()); ) {

        string zbuf = buffer;

        if (gi->GetN() > 1 && drawLine)
          zbuf += "L";       // drawing cut line
        else
          zbuf += "P";       // drawing point(s)

        gi->Draw(zbuf.c_str());
      }

    } else {

      (*i).Draw(buffer.c_str());
    }
  }

  //gPad->RedrawAxis();

  if (legend != "") {

    Ssiz_t height = listOfObjects.size();
    Ssiz_t width  = 1;
    
    for (vector<JRootObject>::const_iterator i = listOfObjects.begin(); i != listOfObjects.end(); ++i) {
      width = max(width, i->getLabel().Length());
    }

    TLegend* lg = getLegend(width, height, legend);

    for (vector<JRootObject>::const_iterator i = listOfObjects.begin(); i != listOfObjects.end(); ++i) {
      lg->AddEntry(*i, " " + i->getLabel(), isTAttLine(*i) ? "L" : "LPF"); 
    }

    lg->Draw();
  }

  cv->Update();

  if (outputFile != "") {
    cv->SaveAs(outputFile.c_str());
  }

  if (!batch) {
    tp->Run();
  }

  return (master != NULL ? 0 : 1);
}