void pdf_curveto
(int pdf document, double x1, double y1, double x2, double y2, double x3, double y3);
The PDF_curveto() function draws a Bezier curve from the current point to the point ( x3 , y3 ) using ( x1 , y1 ) and ( x2 , y2 ) as control points.
See also PDF_moveto() , PDF_lineto() .