ilog.views.chart.graphic

Interface IlvDataAnnotation

All Known Implementing Classes:

IlvDataLabelAnnotation, IlvDefaultDataAnnotation

public interface IlvDataAnnotation

Represents a graphical annotation that can be associated with a data point. Annotations can be specified either globally or individually:

• To associate an annotation with all the data points of a data set, use the IlvChartRenderer.setAnnotation(IlvDataSet, IlvDataAnnotation) method.
• To associate an annotation with a specific data point, use the IlvChartRenderer.setAnnotation(IlvDataSet, int, IlvDataAnnotation) method.

Note: Annotations don't notify their changes automatically. If you are making changes to an annotation that is being used by a renderer, you have to invoke renderer.triggerChange(ChartRendererEvent.ANNOTATION_CHANGED) in order to ensure that the chart gets updated.

Since:

JViews 5.0

Method Summary

Modifier and Type	Method and Description
void	draw(Graphics g, IlvDisplayPoint p) Draws the annotation according to the specified display point.
Rectangle2D	getBounds(IlvDisplayPoint dp, Rectangle2D bounds) Returns the bounding rectangle of this annotation, when displayed according to the specified display point.

Method Detail

draw

void draw(Graphics g,
          IlvDisplayPoint p)

Draws the annotation according to the specified display point.

getBounds

Rectangle2D getBounds(IlvDisplayPoint dp,
                      Rectangle2D bounds)

Returns the bounding rectangle of this annotation, when displayed according to the specified display point.

Parameters:

dp - The considered display point.

bounds - A rectangle optionally used to store the result. If null, a new Rectangle2D is allocated.

Returns:

The bounds of the annotation.