_tcanvas.pyzdoc

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\pythondoc TCanvas
 
Functionality of TCanvas::Update() method was extended to support interactive
graphics in the python scripts. If extra block parameter is True, script execution
will be suspended until <space> key pressed by user. Simple example:
 
\code{.py}
\endcode
import ROOT
 
c = ROOT.TCanvas()
h = ROOT.TH1I("h1", "h1", 100, -5, 5)
h.FillRandom("gaus", 10000)
h.Draw("")
 
# block here until space is pressed
c.Update(True)
 
# continues after <space> is pressed
c.SaveAs("canvas.root")
\endpythondoc