Class BubbleChart

java.lang.Object

com.codename1.charts.views.AbstractChart

com.codename1.charts.views.XYChart

com.codename1.charts.views.BubbleChart

public class BubbleChart
extends XYChart

Displays series of XYValueSeries entries as proportional bubbles on top of an XYChart plot.

Combine the chart with an XYMultipleSeriesDataset that contains one or more XYValueSeries instances and supply an XYMultipleSeriesRenderer. The resulting BubbleChart can be wrapped in a com.codename1.charts.ChartComponent to embed it inside a Codename One UI.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	TYPE	The constant to identify this chart type.

Fields inherited from class XYChart

mDataset, mRenderer

Constructor Summary

Constructors

Constructor	Description
BubbleChart(XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer)	Builds a new bubble chart instance.

Method Summary

Modifier and Type	Method	Description
protected ClickableArea[]	clickableAreasForPoints(List<Float> points, List<Double> values, float yAxisValue, int seriesIndex, int startIndex)	Returns the clickable areas for all passed points
void	drawLegendShape(Canvas canvas, SimpleSeriesRenderer renderer, float x, float y, int seriesIndex, Paint paint)	The graphical representation of the legend shape.
void	drawSeries(Canvas canvas, Paint paint, List<Float> points, XYSeriesRenderer renderer, float yAxisValue, int seriesIndex, int startIndex)	The graphical representation of a series.
String	getChartType()	Returns the chart type identifier.
int	getLegendShapeWidth(int seriesIndex)	Returns the legend shape width.

Methods inherited from class XYChart

draw, drawChartValuesText, drawPoints, drawSeries, drawText, drawXLabels, drawXTextLabels, drawYLabels, getCalcRange, getDataset, getDefaultMinimum, getPointsChart, getRenderer, getScreenR, getSeriesAndPointForScreenCoordinate, getXLabels, getYLabels, isRenderNullValues, isRenderPoints, setCalcRange, setDatasetRenderer, setScreenR, toRealPoint, toRealPoint, toScreenPoint, toScreenPoint

Methods inherited from class AbstractChart

calculateDrawPoints, drawBackground, drawLabel, drawLegend, drawPath, drawPath, drawString, getExceed, getLabel, getLegendSize, isNullValue, isVertical

Methods inherited from class Object

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

Field Details

TYPE

public static final String TYPE

The constant to identify this chart type.

See Also:

• Constant Field Values

Constructor Details

BubbleChart

public BubbleChart(XYMultipleSeriesDataset dataset,
 XYMultipleSeriesRenderer renderer)

Builds a new bubble chart instance.

Parameters

• dataset: the multiple series dataset

• renderer: the multiple series renderer

Method Details

drawSeries

public void drawSeries(Canvas canvas,
 Paint paint,
 List<Float> points,
 XYSeriesRenderer renderer,
 float yAxisValue,
 int seriesIndex,
 int startIndex)

The graphical representation of a series.

Parameters

• canvas: the canvas to paint to

• paint: the paint to be used for drawing

• points: the array of points to be used for drawing the series

• renderer: the series renderer

• yAxisValue: the minimum value of the y-axis

• seriesIndex: the index of the series currently being drawn

• startIndex: the start index of the rendering points

Specified by:

drawSeries in class XYChart

clickableAreasForPoints

protected ClickableArea[] clickableAreasForPoints(List<Float> points,
 List<Double> values,
 float yAxisValue,
 int seriesIndex,
 int startIndex)

Description copied from class: XYChart

Returns the clickable areas for all passed points

Parameters

• points: the array of points

• values: the array of values of each point

• yAxisValue: the minimum value of the y axis

• seriesIndex: the index of the series to which the points belong

• startIndex: the start index of the rendering points

Returns

an array of rectangles with the clickable area

Specified by:

clickableAreasForPoints in class XYChart

getLegendShapeWidth

public int getLegendShapeWidth(int seriesIndex)

Returns the legend shape width.

Parameters

• seriesIndex: the series index

Returns

the legend shape width

Specified by:

getLegendShapeWidth in class AbstractChart

drawLegendShape

public void drawLegendShape(Canvas canvas,
 SimpleSeriesRenderer renderer,
 float x,
 float y,
 int seriesIndex,
 Paint paint)

The graphical representation of the legend shape.

Parameters

• canvas: the canvas to paint to

• renderer: the series renderer

• x: the x value of the point the shape should be drawn at

• y: the y value of the point the shape should be drawn at

• seriesIndex: the series index

• paint: the paint to be used for drawing

Specified by:

drawLegendShape in class AbstractChart

getChartType

public String getChartType()

Returns the chart type identifier.

Returns

the chart type

Specified by:

getChartType in class XYChart