code: func (f *Fpdf) CurveCubic(x0, y0, cx0, cy0, x1, y1, cx1, cy1 float64, styleStr string) {
  	// f.point(x0, y0)
  	// f.outf("%.5f %.5f %.5f %.5f %.5f %.5f c %s", cx0*f.k, (f.h-cy0)*f.k,
  	// cx1*f.k, (f.h-cy1)*f.k, x1*f.k, (f.h-y1)*f.k, fillDrawOp(styleStr))
  	f.CurveBezierCubic(x0, y0, cx0, cy0, cx1, cy1, x1, y1, styleStr)
  }
docs: // CurveCubic draws a single-segment cubic Bézier curve. This routine performs
  // the same function as CurveBezierCubic() but has a nonstandard argument order.
  // It is retained to preserve backward compatibility.