public void setPointerLength(
     PointerLengthDefinition pointerLength, DataFieldDefinition[] possiblePointers) {
   modPane.setModificationDefinition(pointerLength.getModificationDefinition());
   pointerPane.setPointerDefinition(pointerLength.getPointerDefinition(), possiblePointers);
 }
 /** **************************************************************************** Public Methods */
 public PointerLengthDefinition getPointerLength() {
   PointerLengthDefinition pointerLength = new PointerLengthDefinition();
   pointerLength.setModificationDefinition(modPane.getModificationDefinition());
   pointerLength.setPointerDefinition(pointerPane.getPointerDefinition());
   return pointerLength;
 }