All Known Implementing Classes:
RrdGraphDef.FileImageSource, RrdGraphDef.UrlImageSource
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
    Modifier and Type
    Method
    Description
    BufferedImage
    apply(int w, int h)
    A image of the required size that will be applied.

  • Method Details

    • 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