docs: private void updateTargetDescription() {
  		if( targetPt != null ) {
  			TupleDesc feature = describe.createDescription();
  			describe.process(targetPt.x,targetPt.y,targetOrientation,targetRadius,feature);
  			tuplePanel.setDescription(feature);
  		} else {
  			tuplePanel.setDescription(null);
  		}
  		tuplePanel.repaint();
  	}