contour not closed?

Hi Rooters,

I find that when I make a contour plot with TMinuit::contour the curve is not closed. It appears it fails to connect the 1st and last points.

Is there perhaps some drawing option I'm missing?void contourPlot

I do this?

TGraph* contour(TMinuit* gMinuit,Int_t v1,Int_t v2,TString title,TString opt) {

   gMinuit->SetErrorDef(2.); // 2-sigma     TGraph* g1=(TGraph*)gMinuit->Contour(40,v2,v1);     Common::graph=new TGraph(*g1);
    g1->SetTitle(title);
    TString doit="alp";
    doit+=opt;
    g1->Draw(doit);
    return g1;
}

Thanks.

A.E. Snyder, Group EC                        \!c*p?/
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