1 | /*
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2 | * Delphes: a framework for fast simulation of a generic collider experiment
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3 | * Copyright (C) 2012-2014 Universite catholique de Louvain (UCL), Belgium
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4 | *
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5 | * This program is free software: you can redistribute it and/or modify
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6 | * it under the terms of the GNU General Public License as published by
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7 | * the Free Software Foundation, either version 3 of the License, or
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8 | * (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 | */
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18 |
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19 | #include <cassert>
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20 | #include <iostream>
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21 | #include <utility>
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22 | #include <algorithm>
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23 | #include "TGeoManager.h"
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24 | #include "TGeoVolume.h"
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25 | #include "external/ExRootAnalysis/ExRootConfReader.h"
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26 | #include "external/ExRootAnalysis/ExRootTreeReader.h"
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27 | #include "display/DelphesCaloData.h"
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28 | #include "display/DelphesBranchElement.h"
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29 | #include "display/Delphes3DGeometry.h"
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30 | #include "display/DelphesEventDisplay.h"
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31 | #include "classes/DelphesClasses.h"
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32 | #include "TEveElement.h"
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33 | #include "TEveJetCone.h"
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34 | #include "TEveTrack.h"
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35 | #include "TEveTrackPropagator.h"
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36 | #include "TEveCalo.h"
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37 | #include "TEveManager.h"
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38 | #include "TEveGeoNode.h"
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39 | #include "TEveTrans.h"
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40 | #include "TEveViewer.h"
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41 | #include "TEveBrowser.h"
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42 | #include "TEveArrow.h"
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43 | #include "TMath.h"
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44 | #include "TSystem.h"
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45 | #include "TRootBrowser.h"
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46 | #include "TGButton.h"
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47 | #include "TGTextEntry.h"
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48 | #include "TGProgressBar.h"
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49 | #include "TGNumberEntry.h"
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50 | #include "TRootEmbeddedCanvas.h"
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51 | #include "TClonesArray.h"
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52 | #include "TEveEventManager.h"
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53 | #include "TCanvas.h"
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54 | #include "TH1F.h"
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55 |
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56 | DelphesEventDisplay::DelphesEventDisplay()
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57 | {
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58 | event_id_ = 0;
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59 | tkRadius_ = 1.29;
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60 | totRadius_ = 2.0;
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61 | tkHalfLength_ = 3.0;
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62 | muHalfLength_ = 6.0;
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63 | bz_ = 3.8;
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64 | chain_ = new TChain("Delphes");
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65 | treeReader_ = 0;
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66 | delphesDisplay_ = 0;
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67 | etaAxis_ = 0;
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68 | phiAxis_ = 0;
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69 | }
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70 |
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71 | DelphesEventDisplay::~DelphesEventDisplay()
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72 | {
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73 | delete chain_;
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74 | }
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75 |
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76 | void DelphesEventDisplay::EventChanged(Int_t e)
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77 | {
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78 | if( e!= event_id_ ) {
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79 | event_id_ = e;
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80 | Emit("EventChanged(Int_t)",e);
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81 | load_event();
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82 | }
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83 | }
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84 |
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85 |
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86 | DelphesEventDisplay::DelphesEventDisplay(const char *configFile, const char *inputFile, Delphes3DGeometry& det3D)
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87 | {
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88 | event_id_ = 0;
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89 | tkRadius_ = 1.29;
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90 | totRadius_ = 2.0;
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91 | tkHalfLength_ = 3.0;
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92 | bz_ = 3.8;
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93 | chain_ = new TChain("Delphes");
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94 | treeReader_ = 0;
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95 | delphesDisplay_ = 0;
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96 |
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97 | // initialize the application
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98 | TEveManager::Create(kTRUE, "IV");
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99 | fStatusBar_ = gEve->GetBrowser()->GetStatusBar();
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100 | TGeoManager* geom = gGeoManager;
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101 |
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102 | // build the detector
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103 | tkRadius_ = det3D.getTrackerRadius();
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104 | totRadius_ = det3D.getDetectorRadius();
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105 | tkHalfLength_ = det3D.getTrackerHalfLength();
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106 | muHalfLength_ = det3D.getDetectorHalfLength();
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107 | bz_ = det3D.getBField();
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108 | etaAxis_ = det3D.getCaloAxes().first;
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109 | phiAxis_ = det3D.getCaloAxes().second;
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110 | TGeoVolume* top = det3D.getDetector(false);
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111 | geom->SetTopVolume(top);
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112 | TEveElementList *geometry = new TEveElementList("Geometry");
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113 | TObjArray* nodes = top->GetNodes();
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114 | TIter itNodes(nodes);
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115 | TGeoNode* nodeobj;
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116 | TEveGeoTopNode* node;
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117 | while((nodeobj = (TGeoNode*)itNodes.Next())) {
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118 | node = new TEveGeoTopNode(gGeoManager,nodeobj);
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119 | node->UseNodeTrans();
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120 | geometry->AddElement(node);
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121 | }
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122 |
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123 | // Create chain of root trees
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124 | chain_->Add(inputFile);
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125 |
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126 | // Create object of class ExRootTreeReader
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127 | fStatusBar_->SetText("Opening Delphes data file", 1);
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128 | gSystem->ProcessEvents();
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129 | treeReader_ = new ExRootTreeReader(chain_);
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130 |
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131 | // prepare data collections
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132 | readConfig(configFile, elements_);
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133 | for(std::vector<DelphesBranchBase*>::iterator element = elements_.begin(); element<elements_.end(); ++element) {
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134 | DelphesBranchElement<TEveTrackList>* item_v1 = dynamic_cast<DelphesBranchElement<TEveTrackList>*>(*element);
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135 | DelphesBranchElement<TEveElementList>* item_v2 = dynamic_cast<DelphesBranchElement<TEveElementList>*>(*element);
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136 | if(item_v1) gEve->AddElement(item_v1->GetContainer());
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137 | if(item_v2) gEve->AddElement(item_v2->GetContainer());
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138 | }
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139 |
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140 | // viewers and scenes
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141 | delphesDisplay_ = new DelphesDisplay;
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142 | gEve->AddGlobalElement(geometry);
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143 | delphesDisplay_->ImportGeomRPhi(geometry);
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144 | delphesDisplay_->ImportGeomRhoZ(geometry);
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145 | // find the first calo data and use that to initialize the calo display
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146 | for(std::vector<DelphesBranchBase*>::iterator data=elements_.begin();data<elements_.end();++data) {
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147 | if(TString((*data)->GetType())=="Tower") { // we could also use GetClassName()=="DelphesCaloData"
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148 | DelphesCaloData* container = dynamic_cast<DelphesBranchElement<DelphesCaloData>*>((*data))->GetContainer();
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149 | assert(container);
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150 | TEveCalo3D *calo3d = new TEveCalo3D(container);
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151 | calo3d->SetBarrelRadius(tkRadius_);
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152 | calo3d->SetEndCapPos(tkHalfLength_);
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153 | gEve->AddGlobalElement(calo3d);
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154 | delphesDisplay_->ImportCaloRPhi(calo3d);
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155 | delphesDisplay_->ImportCaloRhoZ(calo3d);
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156 | TEveCaloLego *lego = new TEveCaloLego(container);
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157 | lego->InitMainTrans();
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158 | lego->RefMainTrans().SetScale(TMath::TwoPi(), TMath::TwoPi(), TMath::Pi());
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159 | lego->SetAutoRebin(kFALSE);
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160 | lego->Set2DMode(TEveCaloLego::kValSizeOutline);
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161 | delphesDisplay_->ImportCaloLego(lego);
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162 | break;
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163 | }
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164 | }
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165 |
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166 | // the GUI: control panel, summary tab
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167 | make_gui();
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168 |
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169 | //ready...
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170 | fStatusBar_->SetText("Ready.", 1);
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171 | gSystem->ProcessEvents();
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172 | load_event();
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173 | gEve->Redraw3D(kTRUE);
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174 |
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175 | }
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176 |
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177 | // function that parses the config to extract the branches of interest and prepare containers
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178 | void DelphesEventDisplay::readConfig(const char *configFile, std::vector<DelphesBranchBase*>& elements) {
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179 | ExRootConfReader *confReader = new ExRootConfReader;
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180 | confReader->ReadFile(configFile);
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181 | ExRootConfParam branches = confReader->GetParam("TreeWriter::Branch");
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182 | Int_t nBranches = branches.GetSize()/3;
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183 | DelphesBranchElement<TEveTrackList>* tlist;
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184 | DelphesBranchElement<DelphesCaloData>* clist;
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185 | DelphesBranchElement<TEveElementList>* elist;
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186 | // first loop with all but tracks
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187 | for(Int_t b = 0; b<nBranches; ++b) {
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188 | TString input = branches[b*3].GetString();
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189 | TString name = branches[b*3+1].GetString();
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190 | TString className = branches[b*3+2].GetString();
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191 | if(className=="Tower") {
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192 | if(input.Contains("eflow",TString::kIgnoreCase) || name.Contains("eflow",TString::kIgnoreCase)) continue; //no eflow
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193 | clist = new DelphesBranchElement<DelphesCaloData>(name,treeReader_->UseBranch(name),kBlack);
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194 | clist->GetContainer()->SetEtaBins(etaAxis_);
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195 | clist->GetContainer()->SetPhiBins(phiAxis_);
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196 | elements.push_back(clist);
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197 | } else if(className=="Jet") {
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198 | if(input.Contains("GenJetFinder")) {
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199 | elist = new DelphesBranchElement<TEveElementList>(name,treeReader_->UseBranch(name),kCyan);
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200 | elist->GetContainer()->SetRnrSelf(false);
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201 | elist->GetContainer()->SetRnrChildren(false);
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202 | elist->SetTrackingVolume(tkRadius_, tkHalfLength_, bz_);
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203 | elements.push_back(elist);
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204 | } else {
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205 | elist = new DelphesBranchElement<TEveElementList>(name,treeReader_->UseBranch(name),kYellow);
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206 | elist->SetTrackingVolume(tkRadius_, tkHalfLength_, bz_);
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207 | elements.push_back(elist);
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208 | }
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209 | } else if(className=="Electron") {
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210 | tlist = new DelphesBranchElement<TEveTrackList>(name,treeReader_->UseBranch(name),kRed);
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211 | tlist->SetTrackingVolume(tkRadius_, tkHalfLength_, bz_);
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212 | elements.push_back(tlist);
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213 | } else if(className=="Photon") {
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214 | tlist = new DelphesBranchElement<TEveTrackList>(name,treeReader_->UseBranch(name),kYellow);
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215 | tlist->SetTrackingVolume(tkRadius_, tkHalfLength_, bz_);
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216 | elements.push_back(tlist);
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217 | } else if(className=="Muon") {
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218 | tlist = new DelphesBranchElement<TEveTrackList>(name,treeReader_->UseBranch(name),kGreen);
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219 | tlist->SetTrackingVolume(totRadius_, muHalfLength_, bz_);
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220 | elements.push_back(tlist);
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221 | } else if(className=="MissingET") {
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222 | elist = new DelphesBranchElement<TEveElementList>(name,treeReader_->UseBranch(name),kViolet);
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223 | elist->SetTrackingVolume(tkRadius_, tkHalfLength_, bz_);
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224 | elements.push_back(elist);
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225 | } else if(className=="GenParticle") {
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226 | tlist = new DelphesBranchElement<TEveTrackList>(name,treeReader_->UseBranch(name),kCyan);
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227 | tlist->SetTrackingVolume(tkRadius_, tkHalfLength_, bz_);
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228 | tlist->GetContainer()->SetRnrSelf(false);
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229 | tlist->GetContainer()->SetRnrChildren(false);
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230 | elements.push_back(tlist);
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231 | } else {
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232 | continue;
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233 | }
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234 | }
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235 | // second loop for tracks
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236 | for(Int_t b = 0; b<nBranches; ++b) {
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237 | TString input = branches[b*3].GetString();
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238 | TString name = branches[b*3+1].GetString();
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239 | TString className = branches[b*3+2].GetString();
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240 | if(className=="Track") {
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241 | if(input.Contains("eflow",TString::kIgnoreCase) || name.Contains("eflow",TString::kIgnoreCase)) continue; //no eflow
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242 | tlist = new DelphesBranchElement<TEveTrackList>(name,treeReader_->UseBranch(name),kBlue);
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243 | tlist->SetTrackingVolume(tkRadius_, tkHalfLength_, bz_);
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244 | elements.push_back(tlist);
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245 | }
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246 | }
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247 | }
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248 |
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249 | void DelphesEventDisplay::load_event()
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250 | {
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251 | // Load event specified in global event_id_.
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252 | // The contents of previous event are removed.
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253 |
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254 | // safety
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255 | if(event_id_ >= treeReader_->GetEntries() || event_id_<0 ) return;
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256 |
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257 | // message
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258 | fStatusBar_->SetText(Form("Loading event %d.", event_id_), 1);
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259 | gSystem->ProcessEvents();
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260 |
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261 | // clear the previous event
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262 | gEve->GetViewers()->DeleteAnnotations();
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263 | for(std::vector<DelphesBranchBase*>::iterator data=elements_.begin();data<elements_.end();++data) {
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264 | (*data)->Reset();
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265 | }
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266 |
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267 | // Load selected branches with data from specified event
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268 | treeReader_->ReadEntry(event_id_);
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269 | for(std::vector<DelphesBranchBase*>::iterator data=elements_.begin();data<elements_.end();++data) {
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270 | (*data)->ReadBranch();
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271 | }
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272 |
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273 | // update display
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274 | TEveElement* top = (TEveElement*)gEve->GetCurrentEvent();
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275 | delphesDisplay_->DestroyEventRPhi();
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276 | delphesDisplay_->ImportEventRPhi(top);
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277 | delphesDisplay_->DestroyEventRhoZ();
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278 | delphesDisplay_->ImportEventRhoZ(top);
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279 | update_html_summary();
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280 | plotSummary_->FillEvent();
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281 | plotSummary_->Draw();
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282 |
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283 | gEve->Redraw3D(kFALSE, kTRUE);
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284 | fStatusBar_->SetText(Form("Loaded event %d.", event_id_), 1);
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285 | gSystem->ProcessEvents();
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286 | }
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287 |
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288 | void DelphesEventDisplay::update_html_summary()
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289 | {
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290 | // Update summary of current event.
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291 |
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292 | TEveElement::List_i i;
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293 | TEveElement::List_i j;
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294 | Int_t k;
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295 | TEveElement *el;
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296 | DelphesHtmlObjTable *table;
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297 | TEveEventManager *mgr = gEve ? gEve->GetCurrentEvent() : 0;
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298 | if (mgr) {
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299 | htmlSummary_->Clear("D");
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300 | for (i=mgr->BeginChildren(); i!=mgr->EndChildren(); ++i) {
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301 | el = ((TEveElement*)(*i));
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302 | if (el->IsA() == TEvePointSet::Class()) {
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303 | TEvePointSet *ps = (TEvePointSet *)el;
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304 | TString ename = ps->GetElementName();
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305 | TString etitle = ps->GetElementTitle();
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306 | if (ename.First('\'') != kNPOS)
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307 | ename.Remove(ename.First('\''));
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308 | etitle.Remove(0, 2);
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309 | Int_t nel = atoi(etitle.Data());
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310 | table = htmlSummary_->AddTable(ename, 0, nel);
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311 | }
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312 | else if (el->IsA() == TEveTrackList::Class()) {
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313 | TEveTrackList *tracks = (TEveTrackList *)el;
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314 | TString ename = tracks->GetElementName();
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315 | if (ename.First('\'') != kNPOS)
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316 | ename.Remove(ename.First('\''));
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317 | table = htmlSummary_->AddTable(ename.Data(), 5,
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318 | tracks->NumChildren(), kTRUE, "first");
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319 | table->SetLabel(0, "Momentum");
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320 | table->SetLabel(1, "P_t");
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321 | table->SetLabel(2, "Phi");
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322 | table->SetLabel(3, "Theta");
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323 | table->SetLabel(4, "Eta");
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324 | k=0;
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325 | for (j=tracks->BeginChildren(); j!=tracks->EndChildren(); ++j) {
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326 | Float_t p = ((TEveTrack*)(*j))->GetMomentum().Mag();
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327 | table->SetValue(0, k, p);
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328 | Float_t pt = ((TEveTrack*)(*j))->GetMomentum().Perp();
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329 | table->SetValue(1, k, pt);
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330 | Float_t phi = ((TEveTrack*)(*j))->GetMomentum().Phi();
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331 | table->SetValue(2, k, phi);
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332 | Float_t theta = ((TEveTrack*)(*j))->GetMomentum().Theta();
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333 | table->SetValue(3, k, theta);
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334 | Float_t eta = theta>0.0005 && theta<3.1413 ? ((TEveTrack*)(*j))->GetMomentum().Eta() : 1e10;
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335 | table->SetValue(4, k, eta);
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336 | ++k;
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337 | }
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338 | }
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339 | }
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340 | htmlSummary_->Build();
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341 | gHtml_->Clear();
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342 | gHtml_->ParseText((char*)htmlSummary_->Html().Data());
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343 | gHtml_->Layout();
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344 | }
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345 |
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346 | }
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347 |
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348 | /******************************************************************************/
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349 | // GUI
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350 | /******************************************************************************/
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351 |
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352 | void DelphesEventDisplay::make_gui()
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353 | {
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354 | // Create minimal GUI for event navigation.
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355 |
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356 | // add a tab on the left
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357 | TEveBrowser* browser = gEve->GetBrowser();
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358 | browser->SetWindowName("Delphes Event Display");
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359 | browser->StartEmbedding(TRootBrowser::kLeft);
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360 |
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361 | // set the main title
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362 | TGMainFrame* frmMain = new TGMainFrame(gClient->GetRoot(), 1000, 600);
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363 | frmMain->SetWindowName("Delphes Event Display");
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364 | frmMain->SetCleanup(kDeepCleanup);
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365 |
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366 | // build the navigation menu
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367 | TString icondir;
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368 | if(gSystem->Getenv("ROOTSYS"))
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369 | icondir = Form("%s/icons/", gSystem->Getenv("ROOTSYS"));
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370 | if(!gSystem->OpenDirectory(icondir))
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371 | icondir = Form("%s/icons/", (const char*)gSystem->GetFromPipe("root-config --etcdir") );
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372 | TGGroupFrame* vf = new TGGroupFrame(frmMain,"Event navigation",kVerticalFrame | kFitWidth );
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373 | {
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374 | TGHorizontalFrame* hf = new TGHorizontalFrame(frmMain);
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375 | {
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376 | TGPictureButton* b = 0;
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377 |
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378 | b = new TGPictureButton(hf, gClient->GetPicture(icondir+"GoBack.gif"));
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379 | hf->AddFrame(b, new TGLayoutHints(kLHintsLeft | kLHintsCenterY , 10, 2, 10, 10));
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380 | b->Connect("Clicked()", "DelphesEventDisplay", this, "Bck()");
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381 |
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382 | TGNumberEntry* numberEntry = new TGNumberEntry(hf,0,9,-1,TGNumberFormat::kNESInteger, TGNumberFormat::kNEANonNegative, TGNumberFormat::kNELLimitMinMax, 0, treeReader_->GetEntries());
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383 | hf->AddFrame(numberEntry, new TGLayoutHints(kLHintsCenterX | kLHintsCenterY , 2, 0, 10, 10));
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384 | this->Connect("EventChanged(Int_t)","TGNumberEntry",numberEntry,"SetIntNumber(Long_t)");
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385 | numberEntry->GetNumberEntry()->Connect("TextChanged(char*)", "DelphesEventDisplay", this, "PreSetEv(char*)");
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386 | numberEntry->GetNumberEntry()->Connect("ReturnPressed()", "DelphesEventDisplay", this, "GoTo()");
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387 |
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388 | b = new TGPictureButton(hf, gClient->GetPicture(icondir+"GoForward.gif"));
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389 | hf->AddFrame(b, new TGLayoutHints(kLHintsRight | kLHintsCenterY , 2, 10, 10, 10));
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390 | b->Connect("Clicked()", "DelphesEventDisplay", this, "Fwd()");
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391 |
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392 | }
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393 | vf->AddFrame(hf, new TGLayoutHints(kLHintsExpandX , 2, 2, 2, 2));
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394 |
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395 | TGHProgressBar* progress = new TGHProgressBar(frmMain, TGProgressBar::kFancy, 100);
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396 | progress->SetMax( treeReader_->GetEntries());
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397 | progress->ShowPosition(kTRUE, kFALSE, "Event %.0f");
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398 | progress->SetBarColor("green");
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399 | vf->AddFrame(progress, new TGLayoutHints(kLHintsExpandX, 10, 10, 5, 5));
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400 | this->Connect("EventChanged(Int_t)","TGHProgressBar",progress,"SetPosition(Float_t)");
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401 | }
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402 | frmMain->AddFrame(vf, new TGLayoutHints(kLHintsExpandX , 5, 5, 5, 5));
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403 | vf = new TGGroupFrame(frmMain,"Batch operations",kVerticalFrame | kFitWidth );
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404 | {
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405 | TGTextButton *b = new TGTextButton(vf, "Initialize Summary Plots");
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406 | vf->AddFrame(b, new TGLayoutHints(kLHintsCenterX | kLHintsCenterY | kLHintsExpandX, 10, 10, 10, 10));
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407 | b->Connect("Clicked()", "DelphesEventDisplay", this, "InitSummaryPlots()");
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408 | }
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409 | frmMain->AddFrame(vf, new TGLayoutHints(kLHintsExpandX , 5, 5, 5, 5));
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410 |
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411 | frmMain->MapSubwindows();
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412 | frmMain->Resize();
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413 | frmMain->MapWindow();
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414 | browser->StopEmbedding();
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415 | browser->SetTabTitle("Event Control", 0);
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416 |
|
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417 | // the summary tab
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418 | htmlSummary_ = new DelphesHtmlSummary("Delphes Event Display Summary Table");
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419 | TEveWindowSlot* slot = TEveWindow::CreateWindowInTab(gEve->GetBrowser()->GetTabRight());
|
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420 | gHtml_ = new TGHtml(0, 100, 100);
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421 | TEveWindowFrame *wf = slot->MakeFrame(gHtml_);
|
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422 | gHtml_->MapSubwindows();
|
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423 | wf->SetElementName("Summary tables");
|
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424 |
|
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425 | // plot tab
|
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426 | slot = TEveWindow::CreateWindowInTab(gEve->GetBrowser()->GetTabRight());
|
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427 | TEveWindowTab* tab = slot->MakeTab();
|
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428 | tab->SetElementName("Summary plots");
|
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429 | tab->SetShowTitleBar(kFALSE);
|
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430 | plotSummary_ = new DelphesPlotSummary(tab);
|
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431 | plotSummary_->Init(elements_);
|
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432 | plotSummary_->Connect("Progress(Int_t)", "DelphesEventDisplay", this, "DisplayProgress(Int_t)");
|
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433 |
|
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434 | }
|
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435 |
|
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436 |
|
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