Hi rooters,
thank you at all for you answers to my question... but i think that i was
not very clear...
First problem:
This command lines are in a macro, that (in execution) ask me the value
for zmincut... then i do not know a priori his value!!! For example:
TFile* file = new TFile("strip4_z2.root");
TNtuple* ntuple=(TNtuple*)file->Get("h8;1");
(...)
cout<<"Give me the zmincut, please ";
cin>>zmincut;
ntuple->Draw("Iadc1","Xpos>zmincut");
Second problem:
+And an other problem...
+When the command Draw (ntuple-Draw("Xpos"); or histogram->Draw();)is
+inside a macro, the histogram is plotted only when the macro is closed.
+And When the command Draw is inside a macro called by an other main
+macro, the histogram is plotted only when the main macro is closed. But
+how can i interact with the histogram (to draw a line where i want, for
+example), if i do not see him?
For example:
ntuple->Draw("Zpos");
cout<<'\n'<<"Give me the zmincut, please ";
cin>>zmincut;
cout<<'\n'<<"Give me the zmaxcut, please ";
cin>>zmaxcut;
ntuple->Draw("Iadc1","Zpos>zmincut && Zpos<zmaxcut");
If i understand, in cuts definition, the cut values can be numeric only!!!
Thank you
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