setting the fill color and style while in log mode

From: Hans Wenzel (lokal) (wenzel@fnal.gov)
Date: Wed Feb 02 2000 - 10:30:26 MET


Dear all 


somehow i failed in a very simple thing. On a fitted histogram i wanted
to overlay another fitted function with the fit to the signal after
background subtraction. I wanted to fill the area under the function
(lifeufcn) with a different color. Below you find the fraction of my
code. 
p.s. doing it interactively didn't work either (i was using root 2.23.11
and 2.23.12 in linux egcs) 


cheers hans 

   sigMinuit->mnparm(0, "ctau" , 0.0450, 0.0001, 0,0,ierflg);
   sigMinuit->mnparm(1, "scale", 1.0   , 0.01, 0,0,ierflg);
   sigMinuit->SetMaxIterations( 100);
   sigMinuit->Migrad();
   sigMinuit->Command("MIGRAD 100");
   TF1 * sigufcn = new TF1("sigufcn",sigfunc,-.2,.3,2);
   sigufcn->SetParNames("ctau","scale");
   sigMinuit->GetParameter(0,parsig[0],errsig[0]);
   sigMinuit->GetParameter(1,parsig[1],errsig[1]);
   sigufcn->SetParameters(parsig);
   c->cd(2);
   gPad->SetLogy();
   ubctauhis->SetOption("PE1");
   ubctauhis->SetMarkerColor(2);
   ubctauhis->SetMarkerSize(0.7);
   ubctauhis->SetMarkerStyle(22);
   ubctauhis->SetFillStyle(1001);
   ubctauhis->Draw("PE1");
   sigufcn->SetLineWidth(1);
   sigufcn->Draw("LSAME");


   TF1 * lifeufcn = new TF1("lifeufcn",lifefunc,-.2,.3,2);
   lifeufcn->SetParNames("ctau","scale");
   lifeufcn->SetParameters(parsig);
   lifeufcn->SetFillColor(38);
   lifeufcn->SetFillStyle(1001);
   lifeufcn->SetLineWidth(1);
   lifeufcn->Draw("LSAME");
   
   
-- 
________________________________________________________________________________
Hans Wenzel                         | Phone:(721) 608 3418
Inst. für Experimentelle Kernphysik |       (721) 96453 45
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Universität Karlsruhe               | Fax:  (721) 607 262              
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