> Hi,
>
> I have a contour class, which is supposed to be 2d-contours. I want to be able to draw
> such objects on top of 2d-histo (drawn by h2->Draw()).
>
> I have a contour::Paint(Option_t*) routine, which make a call :
>
> gPad->PaintPolyLine(5,x,y) (rectangular contour)
>
> In what coordinates should x[] and y[] be ?
>
In the coordinate system defined by your histogram
Rene Brun