Pie series display each item contained in the series with pie slices to fit the relative size of item value for the sum of all items. The size of circle is specified through RadialSeries.radius which is set by a relative value of the total size of plot area drawing the series. In addition, the location starting the first slice is specified through RadialSeries.startAngle.
Increase radius from 0.3 to 0.8 by 0.01.
Increase innerRadius from 0 to 0.95 by 0.01.
Increase startAngle from 0 to 360.
Increase totalAngle from 0 to 360.
Increase labelOffset from 0 to 30.
Increase tickLength from 0 to 50.
Increase offsetX by 50. Decrease offsetX by 50.
Increase offsetY by 50. Decrease offsetY by 50.
Increase raidusRate by 0.3. Decrease raidusRate by 0.3.