Hi Faouzi, Paul, NOOOOOOOOOOOOO. The TPad documentation is correct!! Read this documentation correctly. c1->cd(1) will set the current pad to the top left pad of the divided canvas. c1->cd(0) is equivalent to c1->cd(). In your example, you call c1->cd(0). your macro cannot work. In addition, I do not understand why you go through the interpreter to execute this call. Simplify your logic to be: { gROOT->Reset(); c1 = new TCanvas("c1", "Zoning ",200,10,900,700); c1.Divide(2,2) ; for(Int_t i=0 ; i < 4; i++) { c1->cd(i+1); fun = new TF1("fun","abs(sin(x)/x)",i,10.+i); fun->Draw() ; } } Rene Brun On Wed, 14 Apr 1999, Faouzi Attallah wrote: > > Thanks Paul, > > This is working, hope this will be corrected/added in the Root web page. > > Cheers, > Faouzi > > > If you replace "c1.cd(%d) ;" with "c1_%d.cd() ;" and have i start > > at 1 it should work. > > > > > > > > > > Hi Rene, > > > > > > I failed running a zoning program (hereafter an example) as suggested in > > > TPad.html#TPad:Divide > > > and TPad:cd > > > I get always the last Draw() within a full window. Did I miss something ? > > > > > > Greetings, > > > Faouzi > > > > > > { > > > gROOT->Reset(); > > > char cmd[20] ; > > > > > > c1 = new TCanvas("c1", "Zoning ",200,10,900,700); > > > c1.Divide(2,2) ; > > > > > > for(Int_t i=0 ; i < 4; i++) { > > > sprintf(cmd,"c1.cd(%d) ;",i) ; > > > printf(" --> Cmd = %s ",cmd) ; > > > gInterpreter->ProcessLine(cmd); > > > fun = new TF1("fun","abs(sin(x)/x)",1.*i,10.*i); > > > fun->Draw() ; > > > } > > > return ; > > > } > > > > > > > > > F. Attallah > > > GSI mbH > > > Planckstr 1 > > > D-64291 Darmstadt > > > Tel: +49 (0)6159 71 2743 > > > Fax: +49 (0)6159 71 2901 > > > Email: F.Attallah@gsi.de > > > > > > > > > > > > -- > > Paul M. Eugenio > > Dept. of Physics > > Carnegie Mellon University > > (412) 268 6949 > > eugenio@ernest.phys.cmu.edu > > > > > > _____________________________________________________ > > / The scholar should know; one builds science with \ > > o O 0 / the facts just like a house can be built of stones; \ > > o | but an accumulation of facts is not a science just like | > > `\|||/ \ that a pile of stones is not a house. / > > (o o) \_____________________________________________________/ > > ooO_(_)_Ooo___________________________________________Henri Poincare'_ > > _____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|____ > > __|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_ > > _____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|____ > > >
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