/text/schart/01/smooth_line_properties.xhp Sun Microsystems, Inc. curves;properties in line charts/XY charts properties;smooth lines in line charts/XY charts Smooth Line Properties In a chart that displays lines (Line type or XY type), you can choose to show curves instead of straight lines. Some options control the properties of those curves.most possibly these curves are not Bezier curves.

To change line properties Select Cubic Spline or B-Spline. These are mathematical models that influence the display of the curves. The curves are created by joining together segments of polynomials. Optionally set the resolution. A higher value leads to a smoother line. For B-spline lines optionally set the degree of the polynomials. Apply a line curve model. Set the resolution. Set the degree of the polynomials.