Hi I'm having some problems with this simple canvas: ----------------------------------------------------------------------------- TH1F* e_Gain; e_Gain = new TH1F(name,title,NbApv,0,NbApv); TCanvas* c1 = new TCanvas("MyCanv","GainComparing",200,10,1100,1100); //c1->Update(); //c1->SetGrid(); //e_Gain->SetMarkerStyle(20); //e_Gain->SetMarkerColor(6); //e_Gain->SetMarkerSize(1.1); //e_Gain->SetXTitle("Apv nb."); //e_Gain->Fit("pol1","Q"); //pol1->SetLineColor(3.5); e_Gain->Draw("e0"); //delete MyCanv; ----------------------------------------------------------------------- it seemed to work but when I run it root gives me this: Warning in <TCanvas::ResizePad>: MyCanv height changed from 0 to 10 root [5] Warning in <TCanvas::ResizePad>: MyCanv height changed from 0 to 10 and it leaves the canvas empty. Thanks in advance _-_-_-_-_-_-_-_-_-_-_-_-_- Davide Gerbaudo
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