--On Thursday, September 18, 2003 10:07:50 AM +0200 Rene Brun <Rene.Brun@cern.ch> wrote: Hi Rene, thanks for the answers, I hadn't found them in the user guide... > > I need to see your code, in particular your main program. > Do you create a TApplication? Please mimic the root main program. > I d'ont create at all any TApplication in my code but I can see interactively my ntuple inside root: here is my script which is simple: { gROOT->Reset(); c1 = new TCanvas("c1","plots",600,600); gPad->SetBottomMargin(0.15); gPad->SetLeftMargin(0.16); TFile file("file.root"); hfcl->SetStats(kFALSE); //titre hfcl->SetTitleSize(0.05, "x"); hfcl->SetTitleOffset(1., "x"); hfcl->SetTitleSize(0.05, "y"); hfcl->SetTitleOffset(1.5, "y"); hfcl->GetXaxis()->SetTitle("l"); hfcl->GetYaxis()->SetTitle("l(l+1)C_{l}/2#pi (#muK^{2})"); hfcl->SetLineStyle(1); hfcl->SetLineWidth(1); hfcl->SetLineColor(13); hfcl->SetFillColor(13); hfcl->Draw(); hcl->SetLineColor(16); cl->Draw("y:x","","same"); //////////////////// c1->Update(); } running it, I don't see the "cl" ntuple drawn. Interactively I type the cl->Draw("y:x","","same"); command, and the points appear on my canvas Stephane
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