RE: TF3::GetHistogram() seg violation

> As you see I get 100 .
> I am using the trunk

[Serhiy Senyukov] As far as I can see from your code you are getting 100 evaluating the function itself. Contrary I get zero by asking the bin content of the histogram derived from the function.

> >> I do not see what you describe here.
> >[Serhiy Senyukov] Ok. I have found the reason for the first issue.
> There
> >were parameters missing in the declaration of the 3D function. However
> >the bin content of the produced histogram is always zero.
> >
> >Regards,
> >Serhiy.
> >
> >> root [0] .x ser.C
> >> Processing ser.C...
> >> Test function3 test = 100
> >> Info in <TCanvas::MakeDefCanvas>: created default TCanvas with name
> c1
> >>
> >> The macro is:
> >>
> >> Double_t test(Double_t *x, Double_t *par)
> >> {
> >> return 100;
> >> }
> >>
> >> void ser(Int_t nPoints=5){
> >> TF3* test_f3=new TF3("test_f3",test,0,10,0,10,0,10,2);
> >> test_f3->SetParameters(1,2);
> >> test_f3->SetNpx(nPoints);
> >> test_f3->SetNpy(nPoints);
> >> test_f3->SetNpz(nPoints);
> >>
> >> cout<<"Test function3 test = "<<test_f3->Eval(5,5,5)<<endl;
> >>
> >> test_f3->Draw();
> >> TH3F* test3_hist=(TH3F*)test_f3->GetHistogram();
> >> }
Received on Wed Mar 30 2011 - 14:34:42 CEST