AreaSeries  - AS3 Flex

Specifies a method that returns the fill for the current chart item in the series. If this property is set, the return value of the custom fill function takes precedence over the fill and fills style properties. But if it returns null, then fills and fill will be prefered in that order.

The custom fillFunction has the following signature:

     function_name (item:ChartItem, index:Number):IFill { ... }
     

An example usage of a customized fillFunction is to return a fill based on some threshold.

     public function myFillFunction(item:ChartItem, index:Number):IFill 
     {
          var curItem:AreaSeriesItem = AreaSeriesItem(item);
          if (curItem.yNumber > 10)
              return(new SolidColor(0x123456, .75));
          else
              return(new SolidColor(0x563412, .75));
     }
     

If you specify a custom fill function for your chart series and you want to have a Legend control, you must manually create a Legend control and add LegendItems to it.

Defines the labels, tick marks, and data position for items on the x-axis. Use either the LinearAxis class or the CategoryAxis class to set the properties of the horizontalAxis as a child tag in MXML or create a LinearAxis or CategoryAxis object in ActionScript.

The subtype of ChartItem used by this series to represent individual items. Subclasses can override and return a more specialized class if they need to store additional information in the items

Specifies the field of the dataProvider that determines the bottom boundary of the area. If null, the area is based at the range minimum (or maximum, if the field value is negative).

預設值為 null。

The subtype of ChartRenderData used by this series to store all data necessary to render. Subclasses can override and return a more specialized class if they need to store additional information for rendering.

Requests the line datapoints be sorted from left to right before rendering.

By default, the LineSeries renders points from left to right. Set this property to false to render the items in the order they appear in the data provider.

預設值為 true。

The StackedSeries associated with this AreaSeries. The stacker manages the series's stacking behavior.

The stack totals for the series.

Defines the labels, tick marks, and data position for items on the y-axis. Use either the LinearAxis class or the CategoryAxis class to set the properties of the verticalAxis as a child tag in MXML or create a LinearAxis or CategoryAxis object in ActionScript.

Specifies the field of the data provider that determines the position of the data points on the horizontal axis. If null, the data points are rendered in the order they appear in the data provider.

預設值為 null。

Specifies the field of the data provider that determines the position of the data point on the vertical axis. If null, the AreaSeries assumes the dataProvider is an Array of numbers, and uses the numbers as values for the data points.

預設值為 null。

Constructor.

Customizes the item renderer instances used to represent the chart. This method is called automatically whenever a new item renderer is needed while the chart is being rendered. You can override this method to add your own customization as necessary.

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參數

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Stacks the series. Normally, a series implements the updateData() method to load its data out of the data provider. But a stacking series performs special operations because its values are not necessarily stored in its data provider. Its values are whatever is stored in its data provider, summed with the values that are loaded by the object it stacks on top of.

A custom stacking series should implement the stack() method by loading its data out of its data provider, adding it to the base values stored in the dictionary to get the real values it should render with, and replacing the values in the dictionary with its new, summed values.

參數

Stacks the series. Normally, a series implements the updateData() method to load its data out of the data provider. But a stacking series performs special operations because its values are not necessarily stored in its data provider. Its values are whatever is stored in its data provider, summed with the values that are loaded by the object it stacks on top of.

A custom stacking series should implement the stack() method by loading its data out of its data provider, adding it to the base values stored in the dictionary to get the real values it should render with, and replacing the values in the dictionary with its new, summed values.

參數