javafx.scene.chart

Class BubbleChart<X,Y>

java.lang.Object

Region

javafx.scene.chart.Chart

javafx.scene.chart.XYChart<X,Y>

javafx.scene.chart.BubbleChart<X,Y>

public class BubbleChart<X,Y>
extends XYChart<X,Y>

Chart type that plots bubbles for the data points in a series. The extra value property of Data is used to represent the radius of the bubble it should be a java.lang.Number.

Since:

JavaFX 2.0

Property Summary

Properties inherited from class javafx.scene.chart.XYChart

alternativeColumnFillVisibleProperty, alternativeRowFillVisibleProperty, dataProperty, horizontalGridLinesVisibleProperty, horizontalZeroLineVisibleProperty, verticalGridLinesVisibleProperty, verticalZeroLineVisibleProperty

Properties inherited from class javafx.scene.chart.Chart

animatedProperty, legendProperty, legendSideProperty, legendVisibleProperty, titleProperty, titleSideProperty

Nested Class Summary

Nested classes/interfaces inherited from class javafx.scene.chart.XYChart

XYChart.Data<X,Y>, XYChart.Series<X,Y>

Field Summary

Fields inherited from class javafx.scene.chart.XYChart

DEFAULT_COLOR, seriesColorMap

Fields inherited from class javafx.scene.chart.Chart

useChartContentMirroring

Constructor Summary

Constructors

Constructor and Description
BubbleChart(Axis<X> xAxis, Axis<Y> yAxis) Construct a new BubbleChart with the given axis.
BubbleChart(Axis<X> xAxis, Axis<Y> yAxis, <any> data) Construct a new BubbleChart with the given axis and data.

Method Summary

Modifier and Type	Method and Description
private Node	createBubble(XYChart.Series<X,Y> series, int seriesIndex, XYChart.Data<X,Y> item, int itemIndex) Create a Bubble for a given data item if it doesn't already have a node
(package private) LegendItem	createLegendItemForSeries(XYChart.Series<X,Y> series, int seriesIndex) Called by the updateLegend for each series in the chart in order to create new legend item
protected void	dataItemAdded(XYChart.Series<X,Y> series, int itemIndex, XYChart.Data<X,Y> item) Called when a data item has been added to a series.
protected void	dataItemChanged(XYChart.Data<X,Y> item) Called when a data item has changed, ie its xValue, yValue or extraValue has changed.
protected void	dataItemRemoved(XYChart.Data<X,Y> item, XYChart.Series<X,Y> series) Called when a data item has been removed from data model but it is still visible on the chart.
private static double	getDoubleValue(java.lang.Object number, double nullDefault) Used to get a double value from a object that can be a Number object or null
protected void	layoutPlotChildren() Called to update and layout the plot children.
protected void	seriesAdded(XYChart.Series<X,Y> series, int seriesIndex) A series has been added to the charts data model.
protected void	seriesRemoved(XYChart.Series<X,Y> series) A series has been removed from the data model but it is still visible on the chart.
protected void	updateAxisRange() This is called when the range has been invalidated and we need to update it.

Methods inherited from class javafx.scene.chart.XYChart

alternativeColumnFillVisibleProperty, alternativeRowFillVisibleProperty, createSeriesRemoveTimeLine, currentDisplayedExtraValueProperty, currentDisplayedXValueProperty, currentDisplayedYValueProperty, dataBeingRemovedIsAdded, dataProperty, getClassCssMetaData, getCssMetaData, getCurrentDisplayedExtraValue, getCurrentDisplayedXValue, getCurrentDisplayedYValue, getData, getDataSize, getDisplayedDataIterator, getDisplayedSeriesIterator, getPlotChildren, getSeriesIndex, getSeriesSize, getVerticalGridLinesVisible, getXAxis, getYAxis, horizontalGridLinesVisibleProperty, horizontalZeroLineVisibleProperty, isAlternativeColumnFillVisible, isAlternativeRowFillVisible, isHorizontalGridLinesVisible, isHorizontalZeroLineVisible, isVerticalZeroLineVisible, layoutChartChildren, removeDataItemFromDisplay, removeSeriesFromDisplay, seriesBeingRemovedIsAdded, seriesChanged, setAlternativeColumnFillVisible, setAlternativeRowFillVisible, setCurrentDisplayedExtraValue, setCurrentDisplayedXValue, setCurrentDisplayedYValue, setData, setHorizontalGridLinesVisible, setHorizontalZeroLineVisible, setVerticalGridLinesVisible, setVerticalZeroLineVisible, updateLegend, verticalGridLinesVisibleProperty, verticalZeroLineVisibleProperty

Methods inherited from class javafx.scene.chart.Chart

animate, animate, animatedProperty, computeMinHeight, computeMinWidth, computePrefHeight, computePrefWidth, getAnimated, getChartChildren, getLegend, getLegendSide, getTitle, getTitleSide, isLegendVisible, layoutChildren, legendProperty, legendSideProperty, legendVisibleProperty, requestChartLayout, setAnimated, setLegend, setLegendSide, setLegendVisible, setTitle, setTitleSide, shouldAnimate, titleProperty, titleSideProperty

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BubbleChart

public BubbleChart(Axis<X> xAxis,
                   Axis<Y> yAxis)

Construct a new BubbleChart with the given axis. BubbleChart does not use a Category Axis. Both X and Y axes should be of type NumberAxis.

Parameters:

xAxis - The x axis to use

yAxis - The y axis to use

BubbleChart

public BubbleChart(Axis<X> xAxis,
                   Axis<Y> yAxis,
                   <any> data)

Construct a new BubbleChart with the given axis and data. BubbleChart does not use a Category Axis. Both X and Y axes should be of type NumberAxis.

Parameters:

xAxis - The x axis to use

yAxis - The y axis to use

data - The data to use, this is the actual list used so any changes to it will be reflected in the chart

Method Detail

getDoubleValue

private static double getDoubleValue(java.lang.Object number,
                                     double nullDefault)

Used to get a double value from a object that can be a Number object or null

Parameters:

number - Object possibly a instance of Number

nullDefault - What value to return if the number object is null or not a Number

Returns:

number converted to double or nullDefault

layoutPlotChildren

protected void layoutPlotChildren()

Called to update and layout the plot children. This should include all work to updates nodes representing the plot on top of the axis and grid lines etc. The origin is the top left of the plot area, the plot area with can be got by getting the width of the x axis and its height from the height of the y axis.

Specified by:

layoutPlotChildren in class XYChart<X,Y>

dataItemAdded

protected void dataItemAdded(XYChart.Series<X,Y> series,
                             int itemIndex,
                             XYChart.Data<X,Y> item)

Description copied from class: XYChart

Called when a data item has been added to a series. This is where implementations of XYChart can create/add new nodes to getPlotChildren to represent this data item. They also may animate that data add with a fade in or similar if animated = true.

Specified by:

dataItemAdded in class XYChart<X,Y>

Parameters:

series - The series the data item was added to

itemIndex - The index of the new item within the series

item - The new data item that was added

dataItemRemoved

protected void dataItemRemoved(XYChart.Data<X,Y> item,
                               XYChart.Series<X,Y> series)

Description copied from class: XYChart

Called when a data item has been removed from data model but it is still visible on the chart. Its still visible so that you can handle animation for removing it in this method. After you are done animating the data item you must call removeDataItemFromDisplay() to remove the items node from being displayed on the chart.

Specified by:

dataItemRemoved in class XYChart<X,Y>

Parameters:

item - The item that has been removed from the series

series - The series the item was removed from

dataItemChanged

protected void dataItemChanged(XYChart.Data<X,Y> item)

Called when a data item has changed, ie its xValue, yValue or extraValue has changed.

Specified by:

dataItemChanged in class XYChart<X,Y>

Parameters:

item - The data item who was changed

seriesAdded

protected void seriesAdded(XYChart.Series<X,Y> series,
                           int seriesIndex)

Description copied from class: XYChart

A series has been added to the charts data model. This is where implementations of XYChart can create/add new nodes to getPlotChildren to represent this series. Also you have to handle adding any data items that are already in the series. You may simply call dataItemAdded() for each one or provide some different animation for a whole series being added.

Specified by:

seriesAdded in class XYChart<X,Y>

Parameters:

series - The series that has been added

seriesIndex - The index of the new series

seriesRemoved

protected void seriesRemoved(XYChart.Series<X,Y> series)

Description copied from class: XYChart

A series has been removed from the data model but it is still visible on the chart. Its still visible so that you can handle animation for removing it in this method. After you are done animating the data item you must call removeSeriesFromDisplay() to remove the series from the display list.

Specified by:

seriesRemoved in class XYChart<X,Y>

Parameters:

series - The series that has been removed

createBubble

private Node createBubble(XYChart.Series<X,Y> series,
                          int seriesIndex,
                          XYChart.Data<X,Y> item,
                          int itemIndex)

Create a Bubble for a given data item if it doesn't already have a node

Parameters:

series -

seriesIndex - The index of the series containing the item

item - The data item to create node for

itemIndex - The index of the data item in the series

Returns:

Node used for given data item

updateAxisRange

protected void updateAxisRange()

This is called when the range has been invalidated and we need to update it. If the axis are auto ranging then we compile a list of all data that the given axis has to plot and call invalidateRange() on the axis passing it that data.

Overrides:

updateAxisRange in class XYChart<X,Y>

createLegendItemForSeries

LegendItem createLegendItemForSeries(XYChart.Series<X,Y> series,
                                     int seriesIndex)

Description copied from class: XYChart

Called by the updateLegend for each series in the chart in order to create new legend item

Overrides:

createLegendItemForSeries in class XYChart<X,Y>

Parameters:

series - the series for this legend item

seriesIndex - the index of the series

Returns:

new legend item for this series