Hi Rene! Here is the macro: { #include<string> gROOT->Reset("a"); TFile f1("./good_fcs/dpr/dpr_1_1_991030_006.root"); TFile f2("./good_fcs/dpr/dpr_1_4_991030_006.root"); TFile f3("./good_fcs/dpr/dpr_1_8_991030_006.root"); TFile f4("./good_fcs/dpr/dpr_2_4_991030_006.root"); TFile f5("./good_fcs/dpr/dpr_2_8_991030_006.root"); TCanvas *c1 = new TCanvas("c1","PCU dual ported RAM readout with FCS test pattern",800,800); TPad *pad1 = new TPad("pad1","Segment 1 Channel 1",0.02,0.47,0.32,0.90,10); TPad *pad2 = new TPad("pad2","Segment 1 Channel 4",0.34,0.47,0.65,0.90,10); TPad *pad3 = new TPad("pad3","Segment 1 Channel 8",0.67,0.47,0.98,0.90,10); TPad *pad4 = new TPad("pad4","Segment 1 Channel 4",0.02,0.02,0.49,0.45,10); TPad *pad5 = new TPad("pad5","Segment 1 Channel 8",0.51,0.02,0.98,0.45,10); TPaveLabel *label1 = new TPaveLabel(0.02,0.92,0.58,0.98,"FCS Test pattern 6: ALL"); label1->SetFillColor(29); label1->Draw(); pad1->Draw(); pad1->SetLogy(); pad2->Draw(); pad3->SetLogy(); pad3->Draw(); pad3->SetLogy(); pad4->Draw(); pad4->SetLogy(); pad5->Draw(); pad5->SetLogy(); c1->SetFillColor(10); Int_t colors[]={9,8,7,6,5,1}; gStyle->SetPalette(6,colors); gStyle->SetOptStat(11); for (Int_t i=1;i<6;++i) statistics_all(i,200); } void statistics_all(Int_t filenumber, Int_t readouts) { switch(filenumber) { case 1: f1.cd(); pad1->cd(); string segchannel("Seg. 1 Ch. 1 "); break; case 2: f2.cd(); pad2->cd(); string segchannel("Seg. 1 Ch. 4 "); break; case 3: f3.cd(); pad3->cd(); string segchannel("Seg. 1 Ch. 8 "); break; case 4: f4.cd(); pad4->cd(); string segchannel("Seg. 2 Ch. 4 "); break; case 5: f5.cd(); pad5->cd(); string segchannel("Seg. 2 Ch. 8 "); break; } segchannel.append("\ncontents of MU4 vs. BX[4..0]CN"); TH2F h1("h1",segchannel.c_str(),65,0,65,50,0,500); switch (filenumber) { case 1: mytree.Draw("(mu4l+mu4m+mu4r):bx>>h1","bx>1","colz"); break; case 2: mytree.Draw("(mu4l+mu4m):bx>>h1","bx>1","colz"); break; case 3: mytree.Draw("(mu4l+mu4m):bx>>h1","bx>1","colz"); break; case 4: mytree.Draw("(mu4l+mu4r):bx>>h1","bx>1","colz"); break; case 5: mytree.Draw("(mu4l+mu4m):bx>>h1","bx>1","colz"); break; } gPad->Update(); } First I load the funktion statistics_all via ".L", then I execute the main program. Ulrich On Thu, 11 Nov 1999, Rene Brun wrote: > Hi Ulrich, > My guess is that your histograms are destroyed somewhere in your > process. > Could you send me a simplified version of your macro ? > > Rene Brun > > Ulrich Husemann wrote: > > > > Dear Rooters! > > > > I try to write a macro to paint several histograms into different pads in > > a canvas. The procedure is the following: > > 1) create pads > > 2) pad.cd(); > > 3) book histogram > > 4) Draw contents of some root file and pipe them into the histogram > > > > If I stop here, nothing is painted. > > > > But if I do a > > > > gPad->Update(); > > > > I can see the histogram for a few milliseconds before it is gone (the > > frames and the stat box are still there). > > > > Ulrich > ---------------------------------------------------------------- Ulrich Husemann room P2-02-407 Experimentelle Physik Vb phone +49-231-755-3667 Dortmund University fax +49-231-755-4547 Otto-Hahn-Str. 4, D-44227 Dortmund e-mail: husemann@physik.uni-dortmund.de WWW: http://www.physik.uni-dortmund.de/herab/main.html ----------------------------------------------------------------
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