Constructor
new Cartesian(x, y, z)
Creates cartesian coordinate representing ECEF (earth-centric earth-fixed) point.
Parameters:
| Name | Type | Description |
|---|---|---|
x |
number | x coordinate in metres (=> 0°N,0°E). |
y |
number | y coordinate in metres (=> 0°N,90°E). |
z |
number | z coordinate in metres (=> 90°N). |
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Methods
applyTransform(t)
Applies Helmert (seven-parameter) transformation to ‘this’ coordinate using transform
parameters t.
Parameters:
| Name | Type | Description |
|---|---|---|
t |
LatLon.datums.transform | Transformation to apply to this coordinate. |
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toLatLon(datumopt)
Converts ‘this’ (geocentric) cartesian (x/y/z) coordinate to (ellipsoidal geodetic)
latitude/longitude point on specified datum.
Uses Bowring’s (1985) formulation for μm precision in concise form.
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
datum |
LatLon.datums |
<optional> |
WGS84 | Datum to use when converting point. |
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toString(dpopt) → {string}
Returns a string representation of ‘this’ cartesian point.
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
dp |
number |
<optional> |
0 | Number of decimal places to use. |
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Returns:
Comma-separated latitude/longitude.
- Type
- string