ViewPolar
ViewPolar allows data visualization in a polar format. The data point position is determined by angular value and amplitude (compare angle as X and amplitude as Y in ViewXY). Polar view also has zooming and panning features.
PointLineSeriesPolar
ViewPolar’s PointLineSeriesPolar can be used to draw a line, a group of points or a point-line. Lots of line and point styles are available in LineStyle and PointStyle properties.

Some data presented with ViewPolar’s PointLineSeries. Line and points are both visible.
More details about PointLineSeriesPolar could be found on this page.
AreaSeries
AreaSeries allow data visualization in filled area style. The line style in the edge can be edited with LineStyle property. Fill can be changed with FillColor property.

Some data presented with ViewPolar’s AreaSeries.
More details about AreaSeriesPolar could be found on this page.
Intensity Grid
IntensityGridSeriesPolar (polar heatmap) is like intensity grid series in XY chart. It allows visualizing M x N array of nodes, colored by assigned value-range palette. The colors between nodes are interpolated. IntensityGridSeriesPolar is evenly spaced in Polar space. The data is stored in Data property as two-dimensional array of doubles [Angle, Amplitude].

IntensityGridSeriesPolar. BeginAngle and EndAngle are used to define the angle range.
More details about IntensityGridSeriesPolar could be found on this page.