| Package | mx.charts.chartClasses |
| Class | public class PolarTransform |
| Inheritance | PolarTransform  DataTransform EventDispatcher Object |
| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
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.
Public Properties
Hide Inherited Public Properties
Show Inherited Public Properties| Property | Defined By | ||
|---|---|---|---|
 | axes : Object [read-only]
The set of axes associated with this transform. | DataTransform | |
| constructor : Object
A reference to the class object or constructor function for a given object instance. | Object | |
| elements : Array
The elements that are associated with this transform. | DataTransform | |
| origin : Point [read-only]
The origin of the polar transform. | PolarTransform | ||
| prototype : Object [static]
A reference to the prototype object of a class or function object. | Object | |
| radius : Number [read-only]
The radius used by the transform to convert data units
to polar coordinates. | PolarTransform | ||
Public Methods
| Method | Defined By | ||
|---|---|---|---|
Constructor. | PolarTransform | ||
| addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registers an event listener object with an EventDispatcher object so that the listener
receives notification of an event. | EventDispatcher | |
|
Informs the DataTransform that some of the underlying data
being represented on the chart has changed. | DataTransform | |
|
Collects important displayed values for all elements
associated with this data transform. | DataTransform | |
|
Dispatches an event into the event flow. | EventDispatcher | |
|
Retrieves the axis instance responsible for transforming
the data dimension specified by the dimension parameter. | DataTransform | |
|
Checks whether the EventDispatcher object has any listeners registered for a specific type
of event. | EventDispatcher | |
|
Indicates whether an object has a specified property defined. | Object | |
|
Transforms x and y coordinates relative to the DataTransform
coordinate system into a two-dimensional value in data space. | DataTransform | |
|
Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
|
Indicates whether the specified property exists and is enumerable. | Object | |
|
Removes a listener from the EventDispatcher object. | EventDispatcher | |
|
Assigns an axis instance to a particular dimension of the transform. | DataTransform | |
|
Sets the availability of a dynamic property for loop operations. | Object | |
Sets the width and height that the PolarTransform uses
when calculating origin and radius. | PolarTransform | ||
|
Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
|
Returns the string representation of the specified object. | Object | |
transformCache(cache:Array, aField:String, aConvertedField:String, rField:String, rConvertedField:String):void [override]
Maps a set of numeric values representing data to screen coordinates. | PolarTransform | ||
|
Returns the primitive value of the specified object. | Object | |
|
Checks whether an event listener is registered with this EventDispatcher object or any of
its ancestors for the specified event type. | EventDispatcher | |
Public Constants
| Constant | Defined By | ||
|---|---|---|---|
| ANGULAR_AXIS : String = "a" [static]
A string representing the angular axis. | PolarTransform | ||
| RADIAL_AXIS : String = "r" [static]
A string representing the radial axis. | PolarTransform | ||
Property Detail
origin | property |
radius | property |
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.
|
Constant Detail
ANGULAR_AXIS | Constant |
public static const ANGULAR_AXIS:String = "a"| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
A string representing the angular axis.
RADIAL_AXIS | Constant |
public static const RADIAL_AXIS:String = "r"| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
A string representing the radial axis.
Mon Nov 28 2011, 06:48 AM -08:00