seriesDashStyle

Specifies the line style of the polararea series line. May beone of the llowing:

Solid
ShortDash
ShortDot
ShortDashDot
ShortDashDotDot
Dot
Dash
LongDash
DashDot
LongDashDot
LongDashDotDot

seriesSettings: {
    polararea: {
        seriesDashStyle: "ShortDot"
    }
}

This setting is demonstrated in the following example.