public final boolean isThin() {
    if (rawData == null) return false;
    int octet5 = getOctet(5);
    int nv = getOctet(4);
    return (octet5 != 255) && (nv == 0 || nv == 255);
  }
public final boolean isThin() {
    if (rawData == null) return false;
    int octet5 = getOctet(5);
    int nv = getOctet(4);
    return (octet5 != 255) && (nv == 0 || nv == 255);
  }
public final boolean isThin ( ) { if ( rawData == null ) return false ; int octet5 = getOctet ( 5 ) ; int nv = getOctet ( 4 ) ; return ( octet5 != 255 ) && ( nv == 0 || nv == 255 ) ; }
is a "thin" grid

@return if a thin grid
is a thin grid