RrdGraphDef.ImageSource (Javadocs [I2P+ 2.13.0+] - API Version 0.9.70+)

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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
  All Methods Instance Methods Abstract Methods
  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 - if an error occurs during image reading or generation

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