Hello ROOT people,
I'm trying to generate a 2D plot based on the contents of TTree by calling tree->Draw("Amplitude:Time>>graph1","<some conditions>");
Everything is perfect, the line on the plot is wonderful :)
But then I'm trying to save the generated plot to a file from a C
function by calling
tree->Draw("Amplitude:Time>>graph1","<some conditions>","groff");
TGraph* gr_tmp = (TGraph*) gDirectory->Get("graph1"); f
TGraph* gr1 = (TGraph*) gr_tmp->Clone("ampl_time");
In this case in my output file I see the ampl_time object being of type TH2D and the plot became "diffused" - instead of single line I have the filling of the rectangular regions like in simple 2D histo.
(How) Can I save my plot with the initial parameters so that it could be drawn as a graph but not a histo?
Thanks in advance!
-- Best regards, Ilya Orlov. ATLAS experiment, CERN Electromagnetic LAr end-cap calorimeter groupReceived on Thu Aug 21 2008 - 16:14:45 CEST
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