HLOCSeriesBase  - AS3 Flex

Specifies the field of the data provider that determines the y-axis location of the closing value of the element.

預設值為 ""。

Specifies the width of elements relative to the category width. A value of 1 uses the entire space, while a value of 0.6 uses 60% of the element's available space. You typically do not set this property directly. The actual element width used is the smaller of the columnWidthRatio and maxColumnWidth properties.

預設值為 0.65.。

Specifies the field of the data provider that determines the y-axis location of the high value of the element.

預設值為 ""。

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.

Gets all the items that are there in the series after filtering.

Individual series determine the list of items that are to be returned.

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.

An Array of LegendData instances that describe the items that should show up in a legend representing this series. Derived series classes override this getter and return legend data that is specific to their styles and data representation method. Although most series types return only a single LegendData instance, some series types, such as PieSeries and StackedSeries, return multiple instances representing individual items in the Array, or multiple ways of rendering data.

Specifies the field of the data provider that determines the y-axis location of the low value of the element.

預設值為 ""。

Specifies the width of the elements, in pixels. The actual element width used is the smaller of this style and the columnWidthRatio property. You typically do not set this value directly; it is assigned by the enclosing chart.

Specifies how far to offset the center of the elements from the center of the available space, relative to the category width. At the value of default 0, the elements are centered on the space. Set to -50 to center the element at the beginning of the available space. You typically do not set this property directly. The enclosing chart control manages this value based on the value of its columnWidthRatio property.

Specifies the field of the data provider that determines the y-axis location of the opening value of the element.

預設值為 ""。

Stores the information necessary to render this series.

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.

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 horizontalAxis 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 x-axis location of the element. If set to the empty string (""), Flex renders the columns in the order they appear in the dataProvider.

預設值為 ""。

Constructor.

Called by the SeriesInterpolate effect to initiate an interpolation effect. The effect passes in the source and destination data for the series to interpolate between. The effect passes the return value of this method repeatedly to the interpolate() method of the series to advance the animation for the duration of the effect. The series calculates the data it needs to perform the interpolation and returns it in this method.

參數

Processes the properties set on the component. This is an advanced method that you might override when creating a subclass of UIComponent.

You do not call this method directly. Flex calls the commitProperties() method when you use the addChild() method to add a component to a container, or when you call the invalidateProperties() method of the component. Calls to the commitProperties() method occur before calls to the measure() method. This lets you set property values that might be used by the measure() method.

Some components have properties that affect the number or kinds of child objects that they need to create, or have properties that interact with each other, such as the horizontalScrollPolicy and horizontalScrollPosition properties. It is often best at startup time to process all of these properties at one time to avoid duplicating work.

Called by the governing DataTransform to obtain a description of the data represented by this IChartElement. Implementors fill out and return an Array of mx.charts.chartClasses.DataDescription objects to guarantee that their data is correctly accounted for by any axes that are autogenerating values from the displayed data (such as minimum, maximum, interval, and unitSize). Most element types return an Array containing a single DataDescription. Aggregate elements, such as BarSet and ColumnSet, might return multiple DataDescription instances that describe the data displayed by their subelements. When called, the implementor describes the data along the axis indicated by the dimension argument. This function might be called for each axis supported by the containing chart.

參數

Generates a text description of a ChartItem suitable for display as a DataTip.

參數

Fills in the elementBounds, bounds, and visibleBounds properties of a renderData structure that is generated by this series. Effect classes call this method to fill in these fields for use in implementing various effect types. Derived classes should implement this method to generate the bounds of the items of the series only when requested.

參數

Gets all the items that are in a rectangular region for the series. Call this function to determine what items are in a particular rectangular region in that series.

Individual series determine whether their chart item is under the region. The point should be in the global coordinate space.

參數

Fills in missing values in an interpolation structure. When a series calls the initializeInterpolationData() method, it passes in Arrays of source and destination values for the interpolation. If either of those two Arrays is incomplete, the series must provide "appropriate" placeholder values for the interpolation. How those placeholder values are determined is specific to the series type. Series extenders should override this method to provide those placeholder values.

參數

Detects changes to style properties. When any style property is set, Flex calls the styleChanged() method, passing to it the name of the style being set.

This is an advanced method that you might override when creating a subclass of UIComponent. When you create a custom component, you can override the styleChanged() method to check the style name passed to it, and handle the change accordingly. This lets you override the default behavior of an existing style, or add your own custom style properties.

If you handle the style property, your override of the styleChanged() method should call the invalidateDisplayList() method to cause Flex to execute the component's updateDisplayList() method at the next screen update.

參數

Called when the underlying data that the series represents has changed and needs to be reloaded from the data provider. If you implement custom series types, you should override this method and load all data necessary to render the series out of the backing data provider. You must also be sure to call the super.updateData() method in your subclass. You do not generally call this method directly. Instead, to guarantee that your data has been updated at a given point, call the validateData() method of the Series class.

Draws the object and/or sizes and positions its children. This is an advanced method that you might override when creating a subclass of UIComponent.

You do not call this method directly. Flex calls the updateDisplayList() method when the component is added to a container using the addChild() method, and when the component's invalidateDisplayList() method is called.

If the component has no children, this method is where you would do programmatic drawing using methods on the component's Graphics object such as graphics.drawRect().

If the component has children, this method is where you would call the move() and setActualSize() methods on its children.

Components can do programmatic drawing even if they have children. In doing either, use the component's unscaledWidth and unscaledHeight as its bounds.

It is important to use unscaledWidth and unscaledHeight instead of the width and height properties.

參數

Called when the underlying data the series represents needs to be filtered against the ranges represented by the axes of the associated data transform. This can happen either because the underlying data has changed or because the range of the associated axes has changed. If you implement a custom series type, you should override this method and filter out any outlying data using the filterCache() method of the axes managed by its associated data transform. The filterCache() method converts any values that are out of range to NaN. You must be sure to call the super.updateFilter() method in your subclass. You should not generally call this method directly. Instead, if you need to guarantee that your data has been filtered at a given point, call the validateTransform() method of the Series class. You can generally assume that your updateData() and updateMapping() methods have been called prior to this method, if necessary.

Called when the underlying data the series represents needs to be mapped to numeric representations. This can happen either because the underlying data has changed or because the axes used to render the series have changed in some relevant way. If you implement a custom series, you should override this method and convert the data represented into numeric values by using the mapCache() method of the axes that are managed by its associated data transform. You must also be sure to call the super.updateMapping() method in your subclass. You should not generally call this method directly. Instead, to guarantee that your data has been mapped at a given point, call the validateData() method of the Series class. You can generally assume that your updateData() method has been called prior to this method, if necessary.

Called when the underlying data the series represents needs to be transformed from data to screen values by the axes of the associated data transform. This can happen either because the underlying data has changed, because the range of the associated axes has changed, or because the size of the area on screen has changed. If you implement a custom series type, you should override this method and transform the data using the transformCache() method of the associated data transform. You must be sure to call the super.updateTransform() method in your subclass. You should not generally call this method directly. Instead, if you need to guarantee that your data has been filtered at a given point, call the valiateTransform() method of the Series class. You can generally assume that your updateData(), updateMapping(), and updateFilter() methods have been called prior to this method, if necessary.