void TPointGui::DrawHorizon ( TVirtualPad *  pad, const char *  fname = "drive/horizon.dat"  ) const

private

Definition at line 550 of file TPointGui.cc.

Referenced by Fit().

{
    TView *view = pad->GetView();

    if (!view)
    {
        cout << "No View!" << endl;
        return;
    }

    ifstream fin(fname);
    if (!fin)
    {
        cout << "ERROR - " << fname << " not found." << endl;
        return;
    }

    TPolyLine poly;
    poly.SetLineWidth(2);
    poly.SetLineColor(12);
    poly.SetLineStyle(8);

    while (1)
    {
        TString line;
        line.ReadLine(fin);
        if (!fin)
            break;

        Float_t az, alt;
        sscanf(line.Data(), "%f %f", &az, &alt);

        Float_t zd = 90-alt;

        az *= TMath::DegToRad();
        zd /= 90;

        Double_t x[6] = { zd*cos(az), zd*sin(az), 0, 0, 0, 0};
        view->WCtoNDC(x, x+3);
        poly.SetNextPoint(-x[3], x[4]);
    }

    poly.DrawClone()->SetBit(kCanDelete);

}

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