The point chart can be a radar plot such as the one shown in this figure.
Each point has a single data value: y. Each point is visualized as a point marker.
The point markers in a radar point series or the series can be assigned a border, fill effect, shape, size, and a depth. Assigning null for a border or fill effect indicates that the property is unset. Size is measured in model units. Depth is measured relative to the plot area depth (0 = no depth, 1 = depth of plot area).
For more information on the point series object in the API, refer to the RadarPointSeries class.