Hi, I have some problem to update canvas, I've tried the following commands : TFile f("myfile.root"); TTree *myt = Mytree; TCanvas *myc = new TCanvas("myc","myc_titre",0,0,400,600); myc->Divide(1,2); myc_1->cd(); myt->Draw("var1"); myc->cd(2); myt->Draw("var2"); Here everything works fine ... then myc->Divide(2,2); myc->cd(1); myt->Draw("var3"); myc->cd(2); myt->Draw("var4"); ... Here my canvas is never updated ... I've tried myc->Update(); and myc->Modified(); in different places but it does not change the result. Do I have to create again a new canvas before the second Divide ? Is there something wrong in the few lines above ? Thanks, Sabine. PS. Is there an equivalent to the "wait" we can use in PAW macros between the drawing of 2 histos ? oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo o o o Sabine Crépé-Renaudin o o o o ISN - 53 avenue des Martyrs - 38026 GRENOBLE CEDEX o o FRANCE o o o o Email crepe@in2p3.fr o o o o Tel 04 76 28 40 72 from France o o 33 4 76 28 40 72 from other countries o o o o Fax 04 76 28 40 04 from France o o 33 4 76 28 40 04 from other countries o o o oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
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