/**
  * Sets the flag to correct positions of blooming stars.
  *
  * @param f true when to correct positions of blooming stars.
  */
 public void setCorrectBloomingPosition(boolean f) {
   checkbox_correct_blooming.setSelected(f);
 }
 /**
  * Returns true when to correct positions of blooming stars.
  *
  * @return true when to correct positions of blooming stars.
  */
 public boolean correctsBloomingPosition() {
   return checkbox_correct_blooming.isSelected();
 }