code: public static final Atom[] getAllNonHAtomArray(Structure s, boolean hetAtoms) {
  		AtomIterator iter = new AtomIterator(s);
  		return getAllNonHAtomArray(s, hetAtoms, iter);
  	}
docs: Returns and array of all non-Hydrogen atoms in the given Structure,
  optionally including HET atoms or not. Waters are not included.
  
  @param s
  @param hetAtoms
  if true HET atoms are included in array, if false they are not
  @return