PolarLayer.setSymbolScale

Sets the size of the symbol for each data point (for creating bubble charts).

One common usage for this method is to draw circle symbols of different sizes at each data points, creating a bubble chart.

This method supports any valid data symbols. You can create bubble charts with square bubbles, or even custom data symbols.

ChartDirector supports specifying sizes as pixels or in axis scale. The unit is specified by using the following predefined constants.

Constant	Value	Description
PixelScale	0	The unit is measured in pixels.
RadialAxisScale	2	The unit is measured in the radial axis scale.

Argument	Default	Description
zData	(Mandatory)	The sizes of the symbols, expressed using the unit defined by the scaleType argument.
scaleType	PixelScale	The unit for zData, which must be one of the predefined constants in the table above.