Description
bearing = nav_calc_bearing(bearing_type, lat1, lon1, lat2, lon2)
nav_calc_bearing is used to calculate the bearing from the first coordinate to the second coordinate.
Return value
| Argument |
Type |
Description
|
| bearing |
Number |
Return value. This value is the bearing from the first coordinate to the second coordinate.
|
Arguments
| # |
Argument |
Type |
Description
|
| 1 |
bearing_type |
String |
The type of bearing. This can be "GREAT_CIRCLE_START" or "RHUMB_LINE".
|
| 2 |
lat1 |
Number |
The latitude of coordinate 1. Use positive for north and negative for south.
|
| 3 |
lon1 |
Number |
The longitude of coordinate 1. Use positive for east and negative for west.
|
| 4 |
lat2 |
Number |
The longitude of coordinate 2. Use positive for east and negative for west.
|
| 5 |
lon2 |
Number |
The longitude of coordinate 2. Use positive for east and negative for west.
|
Example
-- Returns 134.97072337671 degrees
bearing = calculate_bearing("GREAT_CIRCLE_START", 59.6727385, 9.5388091, 56.1731387, 15.5653304)
-- Returns 349.98012992945 degrees
bearing = calculate_bearing("RHUMB_LINE", 42.2445844, 1.0406613, 54.9958871, -2.3930225)