Examples of javax.media.jai.OpImage.mapSourceRect()

javax.media.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.

           Rectangle sourceRect,
           int sourceIndex) throws RemoteException {


  RenderedOp op = (RenderedOp)nodes.get(id);
  OpImage rendering = (OpImage)(op.getRendering());
  return rendering.mapSourceRect(sourceRect, sourceIndex);
    }


    /**
     * Returns a conservative estimate of the region of a specified
     * source that is required in order to compute the pixels of a

/*      */   public Rectangle mapSourceRect(Long id, Rectangle sourceRect, int sourceIndex)
/*      */     throws RemoteException
/*      */   {
/* 1145 */     RenderedOp op = (RenderedOp)nodes.get(id);
/* 1146 */     OpImage rendering = (OpImage)op.getRendering();
/* 1147 */     return rendering.mapSourceRect(sourceRect, sourceIndex);
/*      */   }
/*      */ 
/*      */   public Rectangle mapDestRect(Long id, Rectangle destRect, int sourceIndex)
/*      */     throws RemoteException
/*      */   {

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