draw and save many leafs of a brance

From: Zhu FengRong <zhufr_at_ihep.ac.cn>
Date: Thu, 29 Sep 2005 23:34:53 +0800


hi,
  I now begin use TTree,the script is like this:

           TFile fr("spt.root","new");
           TTree *spt=new TTree("spt","spt check");
           spt->Branch("time",&timee,"time/D");
           spt->Branch("count",grbEvent.r,"count[8][80]/I");

......
spt->Fill();
......
fr.Write(); fr.Close(); After open the spt.root file,I can draw figures one by one with the command:spt->Draw("count[0][0]:time"); spt->Draw("count[0][1]:time"); spt->Draw("count[0][2]:time"); ............................ but 640(8*80) figures will cost much too time. I want to know if there are methods to draw these figures and save quickly? Thanks a lot

with best wishes,
Fengrong Zhu
Institute of High Energy Physics,
C.A.S P.R.C
zhufr_at_ihep.ac.cn
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Open WebMail Project (http://openwebmail.org) Received on Thu Sep 29 2005 - 17:34:47 MEST

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