3、The two nonstandard longitude zones are visible in Figure 3: zone 32V is extended to cover all of southern Norway, while zone 31V is shrunk so that it covers only open water.
4、These squares are identified by two-letter digraphs: the first letter is the east-west position within the longitude zone and the second letter is the north-south position.
2、This method performs its conversion by calling various methods to get the latitude and longitude zone and calculating the easting and northing and so on.
1、Longitude is calculated using the longitude zone.