org.rrd4j.graph

Interface RrdGraphDef.ImageSource

Enclosing class:

RrdGraphDef

public static interface RrdGraphDef.ImageSource

Implementations of this class can be used to generate image than can be layered on graph. The can be used for background image, a background image draw on canvas or an overlay image.

Method Summary

Modifier and Type	Method and Description
BufferedImage	apply(int w, int h) A image of the required size that will be applied.

Method Detail

apply

BufferedImage apply(int w,
                    int h)
             throws IOException

A image of the required size that will be applied. If the generated image is too big, it will be clipped before being applied.

Parameters:

w - the width of the requested image

h - the high of the requested image

Returns:

an image to draw.

Throws:

IOException