Series.Area Spline - Using the Marker Points Element

A "marker point" is a symbol that appears on the chart at each data point. When the Marker Points element is used as a child of Series.Area Spline, a small dot matching the color of the area will be displayed at each data point:

The default marker points are shown above. The Marker Points element allows you to select a different symbol for the marker point, and to control its size, color, border color, and transparency. When the cursor hovers over a marker point, it's automatically enlarged slightly.

You can also create your own marker point symbol using the Chart Canvas child element, Chart Custom Symbol. Once defined, link your custom symbol using the Marker Points element's Symbol attribute. For more information, see Chart Custom Symbol.