TCanvas::Print PNG outputs fraction of figure when canvas size is declared

[Wile_E_Coyote]

SetBatch causes different graphics output for pngs

I’m afraid TCanvas::SetWindowSize is completely unreliable (it can misbehave even in interactive mode). When I try (ROOT 5.34 and 6.04.02): { Int_t w = 800; Int_t h = 600; TCanvas *c; gROOT->SetBatch(kFALSE); c = new TCanvas("c", "c", w, h); c->Modified(); c->Update(); std::cout << c->GetWw() << " " << c->GetWh() << std::endl; c->SetWindowSize(w + (w - c->GetWw()), h + (h - c->GetWh())); c->Modified(); c->Update(); std::cout << c->GetWw() << " " << c->GetWh() << std::endl; …

Print / saveas png draws axis title twice with offset

I am able to reproduce this problem on my Ubuntu 14.04. It is related to two lines in the “rootlogon.C”: gStyle->SetCanvasDefH(RequestedH); gStyle->SetCanvasDefW(RequestedW); As soon as “RequestedH” and/or “RequestedW” exceed physical dimensions of my screen, I also get “spurious” contents in the “bottom” and/or “right” side in the “test1.png” file (but not in another saved pictures and not on the screen). I can clearly see that, when the “png_double_x_axis_title” macro starts, ROOT opens a…