Mark,
TFormula is only a mathematical object with no graphics functionality.
you can use TF1 (derived from TFormula), eg:
TH2F *h2 = new TH2F("h2","hello",10,0,10,10,0,10);
h2->Draw();
TF1 *f1 = new TF1("f1","x",0,10);
f1->Draw("lsame");
Rene Brun
Mark James Boland wrote:
>
> Hello root users,
>
> Could someone help me to plot a continuos function f(x) on top of a
> discrete 2D histogram (similar to the cut shown in
> http://root.cern.ch/root/html/gif/hprexample.gif). I would like to do
> something like:
>
> Tformula *f1 = new TFormula("f1","x");
> TH2F *h2 = new TH2F("h2","hello",10,0,10,10,0,10);
> h2->Draw();
> f1->Draw("same");
>
> Can this be done, even if it is using the postscript class to overlay the
> two plot in a file and view it with ghostview?
>
> Thanks,
> Mark
> ___________________________________________________________________
> Mark Boland markjb@physics.unimelb.edu.au
> School of Physics PhD Student
> The University of Melbourne Photonuclear Group
> Fax: +61 3 9347 4783 Ph: +61 3 9344 5426
This archive was generated by hypermail 2b29 : Tue Jan 02 2001 - 11:50:17 MET