The units indicate the measurement that the projection uses to keep track of space.
The following table lists the available coordinate units and the number used to identify the unit in the MAPINFOW.PRJ file:
| Number | Units |
|---|---|
|
6 |
Centimeters |
|
31 |
Chains |
|
3 |
Feet (also called International Feet)1 |
|
2 |
Inches |
|
1 |
Kilometers |
|
30 |
Links |
|
7 |
Meters |
|
0 |
Miles |
|
5 |
Millimeters |
|
9 |
Nautical Miles2 |
|
32 |
Rods |
|
8 |
US Survey Feet (used for 1927 State Plane)3 |
|
4 |
Yards |