[ROOT] TGraph problem

From: Daniel De Marco (ddm@GE.INFN.IT)
Date: Wed Jul 31 2002 - 14:22:23 MEST 

Hi rooters,

I'm facing a problem with the "C" option of TGraph::Draw(). 
The problem is shown by the following macro:
{
    double x[8];
    double y[8];

    x[0]=1.22461e-1;
    x[1]=0.61383;
    x[2]=1.1547;
    x[3]=1.45673;
    x[4]=1.45673;
    x[5]=1.1547;
    x[6]=0.61383;
    x[7]=1.22461e-1;

    y[0]=-1.4142;
    y[1]=-1.1925;
    y[2]=-0.81649;
    y[3]=-0.37491;
    y[4]=0.37491;
    y[5]=0.81649;
    y[6]=1.1925;
    y[7]=1.4142;

    TCanvas *c=new TCanvas;
    TGraph *pl=new TGraph(8, x, y);
    c->Divide(2,1);
    c->cd(1);
    pl->Draw("AL");
    c->cd(2);
    pl->Draw("AC");
}

In my environment this produces the plot in attachment.
There's a way to get the curved line without the strange behaviour?

Thanks,
Daniel.

PS: I'm using 3.03/07 18 July 2002.

--ddm
c1.gif

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