Methods
(static) checkGr(gr) → {object}
Given a grid reference (British National Grid, Irish Grid or UTM zone 30N shorthand),
check that ths is a valid GR. If it is, return an object which includes the
GR precision in metres, the prefix and the two-letter projection code.
If an invalid grid reference is supplied throws an error.
Parameters:
| Name | Type | Description |
|---|---|---|
gr |
string | the grid reference. |
- Source:
Returns:
Object of the form {precision: n, prefix: 'prefix', projection: 'code'}.
- Type
- object