new MapProjection()
Defines how geodetic ellipsoid coordinates (
Cartographic) project to a
flat map like Cesium's 2D and Columbus View modes.
Members
(readonly) ellipsoid :Ellipsoid
Gets the
Ellipsoid.
Type:
- Source:
Methods
project(cartographic, resultopt) → {Cartesian3}
Projects
Cartographic coordinates, in radians, to projection-specific map coordinates, in meters.
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
cartographic |
Cartographic | The coordinates to project. | |
result |
Cartesian3 |
<optional> |
An instance into which to copy the result. If this parameter is undefined, a new instance is created and returned. |
- Source:
Returns:
The projected coordinates. If the result parameter is not undefined, the
coordinates are copied there and that instance is returned. Otherwise, a new instance is
created and returned.
- Type
- Cartesian3
unproject(cartesian, resultopt) → {Cartographic}
Unprojects projection-specific map
Cartesian3 coordinates, in meters, to Cartographic
coordinates, in radians.
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
cartesian |
Cartesian3 | The Cartesian position to unproject with height (z) in meters. | |
result |
Cartographic |
<optional> |
An instance into which to copy the result. If this parameter is undefined, a new instance is created and returned. |
- Source:
Returns:
The unprojected coordinates. If the result parameter is not undefined, the
coordinates are copied there and that instance is returned. Otherwise, a new instance is
created and returned.
- Type
- Cartographic