PadRable pad = new ConcretePadRable(in,
offsetArea,
PadMode.ZERO_PAD);
// Create the AffineRable that maps the input filter node
AffineRable offset = new ConcreteAffineRable(pad, offsetTransform);
// Get result attribute if any
String result = filterElement.getAttributeNS(null, ATTR_RESULT);
if((result != null) && (result.trim().length() > 0)){
filterMap.put(result, offset);