code: @Override
  	public void resetBoundingBox() {
  		super.resetBoundingBox();
  		final GISLayerContainer<?> parent = getContainer();
  		if (parent != null) {
  			parent.resetBoundingBox();
  		}
  	}
docs: Clear the current bounding box to force the computation of it at
  the next call to {@link #getBoundingBox()}.