The PolarTransform object represents a set of axes
used to map data values to angle/distance polar coordinates
and vice versa.
You typically do not need to interact with the PolarTransform object.
Transforms are created automatically by the built-in chart types
and are used by the series contained within to transform data
into rendering coordinates.
Dispatched when the transformation from data space to screen space has changed, typically either because the axes that make up the transformation have changed in some way, or the data transform itself has size.
The origin of the polar transform.
This point is used by associated series to convert data units
to screen coordinates.
Implementation public function get origin():Point
radius
property
radius:Number [read-only]
Language Version :
ActionScript 3.0
Product Version :
Flex 3
Runtime Versions :
Flash Player 9, AIR 1.1
The radius used by the transform to convert data units
to polar coordinates.
Implementation public function get radius():Number
Constructor Detail
PolarTransform
()
Constructor
public function PolarTransform()
Language Version :
ActionScript 3.0
Product Version :
Flex 3
Runtime Versions :
Flash Player 9, AIR 1.1
Constructor.
Method Detail
setSize
()
method
public function setSize(width:Number, height:Number):void
Language Version :
ActionScript 3.0
Product Version :
Flex 3
Runtime Versions :
Flash Player 9, AIR 1.1
Sets the width and height that the PolarTransform uses
when calculating origin and radius.
The containing chart calls this method.
You should not generally call this method directly.
Parameters
width:Number — The width, in pixels, of the PolarTransform.
height:Number — The height, in pixels, of the PolarTransform.
transformCache
()
method
override public function transformCache(cache:Array, aField:String, aConvertedField:String, rField:String, rConvertedField:String):void
Language Version :
ActionScript 3.0
Product Version :
Flex 3
Runtime Versions :
Flash Player 9, AIR 1.1
Maps a set of numeric values representing data to screen coordinates.
This method assumes the values are all numbers,
so any non-numeric values must have been previously converted
with the mapCache() method.
Parameters
cache:Array — An array of objects containing the data values
in their fields. This is also where this function
will store the converted numeric values.
aField:String — The field where the data values for the x axis
can be found.
aConvertedField:String — The field where the mapped x screen coordinate
will be stored.
rField:String — The field where the data values for the y axis
can be found.
rConvertedField:String — The field where the mapped y screen coordinate
will be stored.
DataTransform 
Hide Inherited Public Properties
Show Inherited Public Properties