ilog.views.chart.renderer

Class IlvPieChartRenderer

java.lang.Object

ilog.views.chart.IlvChartRenderer

ilog.views.chart.renderer.IlvCompositeChartRenderer

ilog.views.chart.renderer.IlvSimpleCompositeChartRenderer

ilog.views.chart.renderer.IlvPieChartRenderer

All Implemented Interfaces:

IlvChartAreaAccessible, IlvChart3DSupport, Serializable

public class IlvPieChartRenderer
extends IlvSimpleCompositeChartRenderer

A renderer displaying pie and doughnut charts.

The following figure illustrates the representation modes available for a pie renderer: as a pie on the left, as a doughnut (with a hole size of 25) on the right.

Since:

JViews 5.0

See Also:

Serialized Form

Field Summary

Fields inherited from class ilog.views.chart.IlvChartRenderer

AREA, BAR, BUBBLE, CANDLE, CENTERED_LABEL_LAYOUT, COMBO, DATA_LABEL, DEFAULT_LABEL_LAYOUT, DEFAULT_LABELING, HILO, HILO_ARROW, HILO_STICK, HLOC, OUTSIDE_LABEL_LAYOUT, PERCENT_LABEL, PIE, POLYLINE, SCATTER, STACKED_AREA, STACKED_BAR, STACKED_DIVERGING_BAR, STACKED_POLYLINE, STACKED_STAIR, STACKED100_AREA, STACKED100_BAR, STACKED100_POLYLINE, STACKED100_STAIR, STAIR, SUMMED_STAIR, SUPERIMPOSED_BAR, TREEMAP, X_VALUE_LABEL, XY_VALUES_LABEL, Y_VALUE_LABEL

Constructor Summary

Constructors

Constructor and Description
IlvPieChartRenderer() Creates a new pie chart renderer.

Method Summary

Modifier and Type	Method and Description
protected IlvChartRenderer	createChild(IlvDataSet dataSet) Creates an instance of IlvSinglePieRenderer to display the specified data set.
int	getHoleSize() Returns the hole size of this pie.
IlvSinglePieRenderer	getPie(IlvDataSet dataSet) Returns the child pie renderer displaying the specified data set.
IlvDataInterval	getYRange(IlvDataInterval range) Returns the range of the y-values displayed by this renderer.
boolean	has3DSupport() Indicates whether this renderer supports three-dimensional drawing.
boolean	isStrokeOn() Indicates whether the outline of the slices is drawn.
void	setHoleSize(int holeSize) Sets the size of the hole in a doughnut chart.
void	setStrokeOn(boolean strokeOn) Specifies whether the outline of the slices is drawn.
protected void	updateChildren() Called when children have been added or removed from this renderer.

Methods inherited from class ilog.views.chart.renderer.IlvSimpleCompositeChartRenderer

dataSetsAdded, dataSetsRemoved

Methods inherited from class ilog.views.chart.renderer.IlvCompositeChartRenderer

addImageMapAreas, collectDisplayItems, createLegendItems, draw, draw, drawAnnotations, drawIntoHitmap, drawLegendSymbol, drawSelectionHandles, getAnnotation, getBounds, getBounds, getChild, getChild, getChild, getChildCount, getChildIterator, getChildren, getDisplayItem, getDisplayPoint, getLegendText, getNearestItem, getNearestPoint, getRenderingHint, getRenderingHint, getStyle, getStyles, getXRange, getYRange, holdsAnnotations, isViewable, setAnnotation, setAnnotation, setDataPoint, setDisplayPoint, setRenderingHint, setRenderingHint, setStyles

Methods inherited from class ilog.views.chart.IlvChartRenderer

applyStyles, applyStyles, applyStyles, chartConnected, computeDataLabel, computeDataLabelLocation, create, createRenderer, dataSetsChangesBatchEnding, dataSetsChangesBatchStarting, dispose, drawSelectionHandles, drawSelectionHandles, drawSelectionHandles, endRendererChanges, findAppropriateColor, fireTreemapFocusEvent, getAnnotation, getBounds, getChart, getClipRect, getCoordinateSystem, getDataLabeling, getDataLabelLayout, getDataLabelling, getDataSetIndex, getDataSetMainIndex, getDataSetMainRenderer, getDataSource, getDefaultColors, getDefaultLegendTitle, getDepths, getDisplayItem, getDisplayItems, getLegendStyle, getMinDataSetCount, getName, getNearestItem, getNearestPoint, getParent, getPlotRect, getPreferredMargins, getRenderingHint, getStyle, getVirtualDataSet, getXShift, getYAxisIdx, isDisplayingDataSet, isVisible, isVisibleInLegend, register, set3D, setAnnotation, setDataLabeling, setDataLabelLayout, setDataLabelling, setDataSource, setName, setParent, setRenderingHint, setStyle, setVisible, setVisibleInLegend, setXShift, setYAxisIdx, startRendererChanges, toData, toDisplay, toDisplay, triggerChange

Methods inherited from class java.lang.Object

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

Constructor Detail

IlvPieChartRenderer

public IlvPieChartRenderer()

Creates a new pie chart renderer.

Method Detail

getPie

public IlvSinglePieRenderer getPie(IlvDataSet dataSet)

Returns the child pie renderer displaying the specified data set.

getHoleSize

public final int getHoleSize()

Returns the hole size of this pie.

See Also:

setHoleSize(int)

setHoleSize

public void setHoleSize(int holeSize)

Sets the size of the hole in a doughnut chart. This size specifies the percentage of the available space that the hole will occupy. It can take values between 0 and 100.

See Also:

getHoleSize()

isStrokeOn

public final boolean isStrokeOn()

Indicates whether the outline of the slices is drawn.

Since:

JViews 8.1

See Also:

setStrokeOn(boolean)

setStrokeOn

public void setStrokeOn(boolean strokeOn)

Specifies whether the outline of the slices is drawn.

Parameters:

strokeOn - A boolean value indicating whether the outline of the slices is drawn. This property is used to customize the child renderers.

Since:

JViews 8.1

updateChildren

protected void updateChildren()

Called when children have been added or removed from this renderer. This method lets you carry out a specific operation on the children whenever their number changes.

Overrides:

updateChildren in class IlvCompositeChartRenderer

createChild

protected IlvChartRenderer createChild(IlvDataSet dataSet)

Creates an instance of IlvSinglePieRenderer to display the specified data set. Subclasses that override this method must return a child of the IlvSinglePieRenderer type, otherwise a ClassCastException will be thrown.

Specified by:

createChild in class IlvCompositeChartRenderer

Returns:

A freshly created renderer that is connected to an empty data source. It will be connected to dataSet by the caller.

getYRange

public IlvDataInterval getYRange(IlvDataInterval range)

Returns the range of the y-values displayed by this renderer. The method stores the result into range and returns range. If range is null, a new IlvDataInterval is allocated.

Overrides:

getYRange in class IlvCompositeChartRenderer

Parameters:

range - An interval used to store the result. If this parameter is null, a new IlvDataInterval is allocated.

Returns:

The computed range.

has3DSupport

public boolean has3DSupport()

Indicates whether this renderer supports three-dimensional drawing.

Specified by:

has3DSupport in interface IlvChart3DSupport

Overrides:

has3DSupport in class IlvChartRenderer

Returns:

true if the renderer is connected to a pie chart.

Since:

JViews 5.5