Methods
# greatCircleEndBearing(carto1, carto2) → {number}
Calculates the end bearing of a trajectory that would go from one point to another using the Harvesine formulae.
| Name | Type | Description |
|---|---|---|
carto1 |
Cesium.Cartographic | The first cartographic coordinate |
carto2 |
Cesium.Cartographic | The second cartographic coordinate |
- Source:
The end bearing in radians (0° = North, 90° = East, 270° = West)
- Type
- number
# greatCircleGroundDistance(carto1, carto2, radius) → {number}
Calculates the ground distance between two geographic coordinates using the Harvesine formulae.
| Name | Type | Description |
|---|---|---|
carto1 |
Cesium.Cartographic | The first cartographic coordinate. |
carto2 |
Cesium.Cartographic | The second cartographic coordinate. |
radius |
number | The radius in meters (defaults to MEAN_EARTH_RADIUS) |
- Source:
The distance in meters
- Type
- number
# greatCircleInitialBearing(carto1, carto2) → {number}
Calculates the initial bearing to take to navigate from a point to another using the Harvesine formulae.
| Name | Type | Description |
|---|---|---|
carto1 |
Cesium.Cartographic | The first cartographic coordinate |
carto2 |
Cesium.Cartographic | The second cartographic coordinate |
- Source:
The initial bearing in radians (0° = North, 90° = East, 270° = West)
- Type
- number
# greatCircleTranslate(carto, translation, radius) → {Cesium.Cartographic}
Travels a distance from a given point with a given translation using the Harvesine formulae. The translation is a tuple
containing the ground distance as first element and the initial bearing as second element, as returned by the greatCircleTranslation()
function.
This function shares the following quasi-equality with greatCircleTranslation():
// given a and b, two Cartographic
greatCircleTranslate(a, greatCircleTranslation(a, b)) ~= b
| Name | Type | Description |
|---|---|---|
carto |
Cesium.Cartographic | The initial cartographic coordinate |
translation |
Array | The translation to apply. It is a tuple where the first element is the ground distance in meters and the second element is the initial bearing in radians (0° = North, 90° = East, 270° = West) |
radius |
number | The radius in meters (defaults to MEAN_EARTH_RADIUS) |
- Source:
The new position
- Type
- Cesium.Cartographic
# greatCircleTranslation(carto1, carto2, radius) → {Array}
Calculates the translation from one point to another using the Harvesine formulae. The translation is a tuple containing the ground distance
as first element and the initial bearing as second element. This function returns the same results than greatCircleDistance() and
greatCircleInitialBearing() but requires less computation than calling both functions in succession.
This function shares the following quasi-equality with greatCircleTranslate():
// given a and b, two Cartographic
greatCircleTranslate(a, greatCircleTranslation(a, b)) ~= b
| Name | Type | Description |
|---|---|---|
carto1 |
Cesium.Cartographic | The first cartographic coordinate. |
carto2 |
Cesium.Cartographic | The second cartographic coordinate. |
radius |
number | The radius in meters (defaults to MEAN_EARTH_RADIUS) |
- Source:
A tuple containing the distance in meters between the two points as first element and the initial bearing in radians from first point to second point as second element (0° = North, 90° = East, 270° = West)
- Type
- Array