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calo_detail.C File Reference

Detailed Description

Calorimeter detailed view by using TEveCaloDataVec as data-source.

Demonstrates how to plot calorimeter data with irregular bins.

#include "calorimeters.C"
TEveCaloDataVec* MakeVecData(Int_t ncells=0);
void calo_detail()
// data
auto data = MakeVecData(20);
data->IncDenyDestroy(); // don't delete if zero parent
// frames
auto packH = slot->MakePack();
slot = packH->NewSlot();
auto pack0 = slot->MakePack();
auto slotLeftTop = pack0->NewSlot();
auto slotLeftBottom = pack0->NewSlot();
slot = packH->NewSlot();
auto pack1 = slot->MakePack();
auto slotRightTop = pack1->NewSlot();
auto slotRightBottom = pack1->NewSlot();
// viewers ans scenes in second tab
Float_t maxH = 300;
TEveCalo3D* calo3d = MakeCalo3D(data, slotRightTop);
TEveCalo2D* calo2d;
calo2d = MakeCalo2D(calo3d, slotLeftTop, TEveProjection::kPT_RPhi);
calo2d = MakeCalo2D(calo3d, slotLeftBottom, TEveProjection::kPT_RhoZ);
TEveCaloLego* lego = MakeCaloLego(data, slotRightBottom);
TEveCaloDataVec* MakeVecData(Int_t ncells)
// Example how to fill data when bins can be irregular.
// If ncells = 0 (default) whole histogram is taken,
// otherwise just ncells cells around the maximum.
auto hf = TFile::Open(histFile, "CACHEREAD");
TH2F* h1 = (TH2F*)hf->Get("ecalLego");
TH2F* h2 = (TH2F*)hf->Get("hcalLego");
auto data = new TEveCaloDataVec(2);
data->RefSliceInfo(0).Setup("ECAL", 0.3, kRed);
data->RefSliceInfo(1).Setup("HCAL", 0.1, kBlue);
auto ax = h1->GetXaxis();
auto ay = h1->GetYaxis();
Int_t xm = 1, xM = ax->GetNbins();
Int_t ym = 1, yM = ay->GetNbins();
if (ncells != 0)
Int_t cx, cy, cz;
h1->GetMaximumBin(cx, cy, cz);
xm = TMath::Max(xm, cx-ncells);
xM = TMath::Min(xM, cx+ncells);
ym = TMath::Max(ym, cy-ncells);
yM = TMath::Min(yM, cy+ncells);
// Take every second cell and set a random size.
for (Int_t i=xm; i<=xM; i+=2) {
for (Int_t j=ym; j<=yM; j+=2) {
if ( (i+j) % 3) {
data->AddTower(ax->GetBinLowEdge(i), ax->GetBinUpEdge(i),
ay->GetBinLowEdge(j), ay->GetBinUpEdge(j));
data->FillSlice(0, h1->GetBinContent(i, j));
data->FillSlice(1, h2->GetBinContent(i, j));
} else {
2 * ax->GetBinWidth(i) + ax->GetBinLowEdge(i),
2 * ay->GetBinWidth(j) + ay->GetBinLowEdge(j));
data->FillSlice(0, h2->GetBinContent(i, j));
data->FillSlice(1, h2->GetBinContent(i, j));
return data;
int Int_t
Definition RtypesCore.h:45
float Float_t
Definition RtypesCore.h:57
constexpr Bool_t kFALSE
Definition RtypesCore.h:101
constexpr Bool_t kTRUE
Definition RtypesCore.h:100
@ kRed
Definition Rtypes.h:66
@ kBlue
Definition Rtypes.h:66
R__EXTERN TEveManager * gEve
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void data
Int_t GetNbins() const
Definition TAxis.h:125
Visualization of a calorimeter event data in 2D.
Definition TEveCalo.h:202
Visualization of a calorimeter event data in 3D.
Definition TEveCalo.h:158
Calo data for universal cell geometry.
Visualization of calorimeter data as eta/phi histogram.
Definition TEveCalo.h:251
void SetMaxTowerH(Float_t x)
Definition TEveCalo.h:112
void AddElement(TEveElement *element, TEveElement *parent=nullptr)
Add an element.
TGLViewer * GetDefaultGLViewer() const
Get TGLViewer of the default TEveViewer.
TEveBrowser * GetBrowser() const
static TEveManager * Create(Bool_t map_window=kTRUE, Option_t *opt="FIV")
If global TEveManager* gEve is not set initialize it.
void FullRedraw3D(Bool_t resetCameras=kFALSE, Bool_t dropLogicals=kFALSE)
Perform 3D redraw of all scenes and viewers.
static TEveWindowSlot * CreateWindowInTab(TGTab *tab, TEveWindow *eve_parent=nullptr)
Create a new tab in a given tab-widget and populate it with a default window-slot.
static Bool_t SetCacheFileDir(ROOT::Internal::TStringView cacheDir, Bool_t operateDisconnected=kTRUE, Bool_t forceCacheread=kFALSE)
Definition TFile.h:332
static TFile * Open(const char *name, Option_t *option="", const char *ftitle="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseCompiledDefault, Int_t netopt=0)
Create / open a file.
Definition TFile.cxx:4075
void SetCurrentCamera(ECameraType camera)
Set current active camera - 'cameraType' one of: kCameraPerspX, kCameraPerspY, kCameraPerspZ,...
@ kCameraPerspXOY
Definition TGLViewer.h:61
virtual Bool_t SetTab(Int_t tabIndex, Bool_t emit=kTRUE)
Brings the composite frame with the index tabIndex to the front and generate the following event if t...
Definition TGTab.cxx:558
TAxis * GetXaxis()
Definition TH1.h:322
TAxis * GetYaxis()
Definition TH1.h:323
virtual Int_t GetMaximumBin() const
Return location of bin with maximum value in the range.
Definition TH1.cxx:8494
virtual Double_t GetBinContent(Int_t bin) const
Return content of bin number bin.
Definition TH1.cxx:5032
2-D histogram with a float per channel (see TH1 documentation)}
Definition TH2.h:258
Double_t GetBinContent(Int_t binx, Int_t biny) const override
Definition TH2.h:89
TGTab * GetTabRight() const
const char * histFile
void lego()
Definition lego.C:31
TH1F * h1
Definition legend1.C:5
Short_t Max(Short_t a, Short_t b)
Returns the largest of a and b.
Definition TMathBase.h:250
Short_t Min(Short_t a, Short_t b)
Returns the smallest of a and b.
Definition TMathBase.h:198
Alja Mrak-Tadel

Definition in file calo_detail.C.