Chart Widget Types
There are 2 main types of polar charts :
Constant values are circles.
Each separate X Axis value is in the middle of a radial portion.
Constant values are straight lines.
Each separate X Axis value is on the edge of a radial portion.
For each Chart Type (Polar or Radar), each series can have a variety of Draw Types :
In the same chart, each separate series can have a different Draw Type.