本文整理汇总了C++中TCanvas::GetBottomMargin方法的典型用法代码示例。如果您正苦于以下问题：C++ TCanvas::GetBottomMargin方法的具体用法？C++ TCanvas::GetBottomMargin怎么用？C++ TCanvas::GetBottomMargin使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TCanvas的用法示例。
在下文中一共展示了TCanvas::GetBottomMargin方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Run
//____________________________________________________________________
void Run(const char* newName, const char* oldName,
const char* newTitle="New", const char* oldTitle="Old")
{
TFile* newFile = TFile::Open(newName,"READ");
TFile* oldFile = TFile::Open(oldName,"READ");
if (!newFile || !oldFile) return;
TH1* newCent = GetH1(newFile, "realCent");
TH1* oldCent = GetH1(oldFile, "realCent");
if (!newCent || !oldCent) return;
TString t; t.Form("#it{R}=#frac{%s}{%s}", newTitle, oldTitle);
TCanvas* c = new TCanvas("c", t, 1200, 800);
c->SetTopMargin(0.01);
c->SetRightMargin(0.20);
fLegend = new TLegend(1-c->GetRightMargin(),
c->GetBottomMargin(),
1, 1-c->GetTopMargin(),
t);
fLegend->SetFillStyle(0);
fLegend->SetBorderSize(0);
THStack* stack = new THStack("ratios","");
fMin = +1e6;
fMax = -1e6;
TH1* one = 0;
for (Int_t i = newCent->GetNbinsX(); i--;) {
Double_t c1 = newCent->GetXaxis()->GetBinLowEdge(i+1);
Double_t c2 = newCent->GetXaxis()->GetBinUpEdge(i+1);
Info("", "c1=%f c2=%f", c1, c2);
TH1* r = One(newFile, oldFile, c1, c2);
if (!r) continue;
if (!one) {
one = static_cast<TH1*>(r->Clone("one"));
one->SetDirectory(0);
one->Reset();
for (Int_t j = 1; j <= one->GetNbinsX(); j++) {
one->SetBinContent(j,1);
one->SetBinError (j,0);
}
}
// r->Add(one, i-1);
// r->Scale(TMath::Power(10,i));
stack->Add(r);
}
stack->Draw("nostack");
stack->SetMinimum(0.95*fMin);
stack->SetMaximum(1.05*fMax);
stack->GetHistogram()->SetXTitle("#eta");
stack->GetHistogram()->SetYTitle("#it{R}");
fLegend->Draw();
c->Modified();
c->Update();
c->cd();
c->SaveAs(Form("%sover%s.png", newTitle, oldTitle));
} 示例2: next
/**
* Extract ALICE PbPb @ 5.02TeV over |eta|<2
*
* @param filename Input file name
* @param outname Output file name
* @param reweigh Whether it is reweighed
*/
void
Extract(const char* filename="dndneta.pbpb502.20151124.root",
const char* outname="TRACKLETS_5023_PbPb.input",
Bool_t reweigh=false)
{
if (filename == 0) return;
TFile* file = TFile::Open(filename, "READ");
TObjArray* arr = static_cast<TObjArray*>(file->Get("TObjArray"));
// Now count number of bins
Int_t nBins = 0;
TIter next(arr);
TObject* obj = 0;
while ((obj = next())) {
if (TString(obj->GetName()).Contains("DataCorrSignal"))
nBins++;
}
Info("ExtractdNdeta", "Defining %d centrality bins", nBins);
TArrayD c(nBins+1);
if (nBins == 5) {
c[0] = 0; c[1] = 10; c[2] = 20; c[3] = 40; c[4] = 60; c[5] = 80;
}
else if (nBins >= 9) {
c[0] = 0; c[1] = 5; c[2] = 10; c[3] = 20; c[4] = 30; c[5] = 40;
c[6] = 50; c[7] = 60; c[8] = 70; c[9] = 80;
if (nBins >= 10) c[10] = 90;
if (nBins >= 11) c[11] = 100;
}
THStack* all = new THStack("all","all");
std::ofstream out(outname);
std::ostream& o = out; // std::cout;
// std::ostream& o = std::cout;
o << "*author: SHAHOYAN : 2015\n"
<< "*title: Full centrality dependence of the charged "
<< "particle pseudo-rapidity density over the widest "
<< "possible pseudo-rapidity range in Pb-Pb collisions "
<< "at 5.02 TeV\n"
<< "*detector: TRACKLETS\n"
<< "*experiment: CERN-LHC-TRACKLETS\n"
<< "*comment: CERN-LHC: We present the charged particle pseudo-rapidity "
<< "density of charged particles in Pb-Pb collisions at sqrt(s)/nucleon "
"= 5.02 over the widest possible pseudo-rapidity and centrality range "
<< "possible.\n" << std::endl;
for (Int_t i = 0; i < nBins; i++) {
TString hName = Form("bin%d_DataCorrSignal_PbPb",i);
TH1* h = static_cast<TH1*>(arr->FindObject(hName));
if (!h) {
hName.ReplaceAll("PbPb", "PBPB");
h = static_cast<TH1*>(arr->FindObject(hName));
if (!h) {
Warning("", "Histogram (%s) missing for bin %d", hName.Data(), i);
arr->Print();
continue;
}
}
Color_t col = PbPbColor(c[i], c[i+1]);
h->SetLineColor(col);
h->SetMarkerColor(col);
h->SetFillColor(col);
all->Add(h);
Info("","Making GSE for %0d%% to %3d%% (%d)",
Int_t(c[i]), Int_t(c[i+1]), col);
MakeGSE(o, h, c[i], c[i+1], reweigh);
}
// all->Draw("nostack");
o << "*E" << std::endl;
out.close();
TCanvas* can = new TCanvas("c","C", 1600, 800);
can->SetRightMargin(0.2);
can->SetTopMargin(0.01);
TLegend* cl = new TLegend(1-can->GetRightMargin(),
can->GetBottomMargin(),.99,
1-can->GetTopMargin());
cl->SetFillStyle(0);
cl->SetBorderSize(0);
gROOT->LoadMacro("$HOME/GraphSysErr/GraphSysErr.C+");
TList* ll = GraphSysErr::Import(outname);
// ll->ls();
TIter next(ll);
TObject* obj = 0;
Bool_t first = true;
TH1* frame = 0;
Double_t min=100000, max=0;
Int_t i = 0;
while ((obj = next())) {
//.........这里部分代码省略.........
示例3: DrawKs
TCanvas* DrawKs(const char* filename)
{
TFile* file = TFile::Open(filename, "READ");
if (!file) {
Warning("DrawKs", "File %s couldn't be opened", filename);
return 0;
}
TH1* cent = static_cast<TH1*>(file->Get("cent"));
if (!cent) {
Warning("DrawKs", "Failed to find cent in %s", file->GetName());
return 0;
}
TString t(filename);
t.ReplaceAll("results/", "");
t.ReplaceAll("combine_","");
t.ReplaceAll("_0x3.root", "");
TString nm(filename);
nm.ReplaceAll(".root", "");
nm.ReplaceAll("results/", "plots/");
nm.ReplaceAll("combine", "ks");
if (t.Contains("none"))
t.ReplaceAll("none", "No weights");
else
t.Append(" weights");
Int_t cW = 1200;
Int_t cH = 800;
TCanvas* c = new TCanvas(nm,t,cW, cH);
c->SetTopMargin(0.07);
c->SetRightMargin(0.20);
c->SetTicks();
TLegend* l = new TLegend(1-c->GetRightMargin(),
c->GetBottomMargin(),
.99,
1-c->GetTopMargin());
l->SetFillStyle(0);
l->SetBorderSize(0);
THStack* s = new THStack("ks", "");
Int_t nCent = cent->GetXaxis()->GetNbins();
for (Int_t i = 1; i <= nCent; i++) {
Double_t c1 = cent->GetXaxis()->GetBinLowEdge(i);
Double_t c2 = cent->GetXaxis()->GetBinUpEdge(i);
TH1* h = GetCentK(file, c1, c2, nCent-i+1-2, l);
if (!h) continue;
s->Add(h);
}
s->Draw("nostack");
TH1* f = s->GetHistogram();
if (f) {
f->SetXTitle("#eta");
f->SetYTitle("#it{k}(#eta)");
}
TLatex* tit = new TLatex(0.55, 0.99, t);
tit->SetTextFont(42);
tit->SetTextAlign(23);
tit->SetTextSize(0.03);
tit->SetNDC();
tit->Draw();
l->SetBorderSize(0);
l->Draw();
c->Modified();
c->Update();
c->cd();
return c;
}示例4: vs_PlotQCDcomp
//.........这里部分代码省略.........
if ( hptFOR != 0 ) {
for (int b = 0; b < hptFOR->GetNbinsX(); b++) {
Double_t mainHistoContent = hptFOR->GetBinContent(b);
Double_t systUpHistoContent = hptSUR->GetBinContent(b);
Double_t systDnHistoContent = hptSDR->GetBinContent(b);
Double_t systDiffUp = fabs( (double) systUpHistoContent - mainHistoContent );
Double_t systDiffDn = fabs( (double) mainHistoContent - systDnHistoContent );
// use average error for histogram
Double_t systDiff = ( systDiffUp + systDiffDn ) / 2.;
Double_t statErr = hptFOR->GetBinError(b);
Double_t combError = sqrt( systDiff * systDiff + statErr * statErr );
hptFOR->SetBinError(b, combError);
} //for
}//if
cPt->SetLogy(1);
gPad->Update();
cPt->Update();
// hptR->Scale(1,"width");
// hptR->SetMinimum(0.02);
// hptR->SetMaximum(1000);
hptR->GetXaxis()->SetTitle("1^{st} photon p_{T} [GeV]");
hptR->GetYaxis()->SetTitle("Number of Events / GeV");
if(isMC) hptR->SetMarkerSize(0);
if(isMC) hptR->Draw("histE");
else hptR->Draw("E X0");
hptFOR->SetMarkerSize(0);
hptFOR->SetLineColor(2);
hptFOR->SetFillColor(2);
hptFOR->SetFillStyle(3004);
hptFOR->Draw("same hist ][ E2");
legend->Clear();
if(isMC) legend->SetHeader("#gamma/QCD (Sim)");
else legend->SetHeader("#gamma/QCD (Data)");
if(isMC) legend->AddEntry(hptR, "#gamma", "l");
else legend->AddEntry(hptR, "#gamma", "p");
legend->AddEntry(hptFOR, "Pred (from #gamma_{jet})", "f");
legend->Draw();
as->DrawLatex(0.17, 0.93, outLumi.c_str() );
cPt->Update();
cPt->SetBottomMargin(0.2 + 0.8 * cPt->GetBottomMargin() - 0.2 * cPt->GetTopMargin());
TPad *ratioPt = new TPad("BottomPad", "", 0, 0, 1, 1);
ratioPt->SetTopMargin(0.8 - 0.8 * ratioPt->GetBottomMargin() + 0.2 * ratioPt->GetTopMargin());
ratioPt->SetFillStyle(0);
ratioPt->SetFrameFillColor(10);
ratioPt->SetFrameBorderMode(0);
ratioPt->Draw();
ratioPt->cd();
ratioPt->SetLogy(0);
TH1F *hptRat = (TH1F*) divideHistosForRatio(hptR,hptFOR);
hptRat->SetMinimum(0.);
hptRat->SetMaximum(10.);
hptRat->GetXaxis()->SetNdivisions(505);
if(isMC) hptRat->GetYaxis()->SetTitle("Sim/Pred");
else hptRat->GetYaxis()->SetTitle("Data/Pred");
hptRat->GetYaxis()->SetTitleSize(0.04);
hptRat->GetYaxis()->SetLabelSize(0.03);
hptRat->GetYaxis()->SetTitleOffset(1.3);
hptRat->GetYaxis()->SetNdivisions(505);
hptRat->SetMarkerStyle(20);
hptRat->SetMarkerSize(1);
hptRat->SetMarkerColor(1);
hptRat->SetLineColor(1);
hptRat->Draw("E X0");
TH1F *hptFRat = (TH1F*) getSystErrForRatio(hptFOR);
hptFRat->SetLineColor(2);
hptFRat->SetFillColor(2);
hptFRat->SetFillStyle(3004);
hptFRat->Draw("same hist ][ E2");
TLine * line = new TLine( hptRat->GetXaxis()->GetXmin(), 1., hptRat->GetXaxis()->GetXmax(), 1. );
line->SetLineColor(1);
line->SetLineWidth(0.5);
line->SetLineStyle(1);
line->Draw("same");
hptR->GetXaxis()->SetLabelSize(0);
hptR->GetXaxis()->SetTitle("");
cPt->RedrawAxis();
gPad->Update();
cPt->Update();
return;
}示例5: makeNiceCanvasByPixMargins
TCanvas* makeNiceCanvasByPixMargins(Int_t pixelPerBinX, Int_t pixelPerBinY, Int_t nbinx, Int_t nbiny, Int_t top, Int_t bottom, Int_t left, Int_t right) {
Int_t rubaX = 4; //determinato sperimentalmente
Int_t rubaY = 28; //determinato sperimentalmente
TString name = generateRandomName();
Int_t plotBaseDimX = pixelPerBinX*nbinx;
Int_t plotBaseDimY = pixelPerBinY*nbiny;
Int_t XX = (Int_t)(plotBaseDimX+left+right);
Int_t YY = (Int_t)(plotBaseDimY+top+bottom);
TCanvas* can = new TCanvas(name,name,XX+rubaX,YY+rubaY);
can->SetTopMargin((1.*top)/(1.*YY));
can->SetBottomMargin((1.*bottom)/(1.*YY));
can->SetRightMargin(right/(1.*XX));
can->SetLeftMargin(left/(1.*XX));
can->SetBorderMode(0);
std::cout << "Nice canvas " << XX << " * " << YY << " Margin: t " << can->GetTopMargin() << " b " << can->GetBottomMargin() << " l " << can->GetLeftMargin() << " r " << can->GetRightMargin() << std::endl;
return can;
}