Examples of com.lightcrafts.mediax.jai.OpImage.mapSourceRect()

• com.lightcrafts.mediax.jai.OpImage.mapSourceRect()
  Returns a conservative estimate of the destination region that can potentially be affected by the pixels of a rectangle of a given source. An empty Rectangle may be returned if the destination is unaffected by the contents of the source rectangle. This is distinct from a null return value which serves rather to indicate that it is not possible to determine the bounds of the affected region. The safest interpretation of a null return value is that the entire destination might be affected by any pixel within the given source rectangle. @param sourceRect The Rectangle in source coordinates. @param sourceIndex The index of the source image. @return A Rectangle indicating the potentiallyaffected destination region, or null if the region is unknown. @throws IllegalArgumentException If the source index isnegative or greater than that of the last source. @throws IllegalArgumentException If sourceRect isnull.