A description of the outline of an ellipse on an ellipsoid.
Name | Type | Description | ||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
options |
Object |
Object with the following properties:
|
Throws:
-
DeveloperError : semiMajorAxis and semiMinorAxis must be greater than zero.
-
DeveloperError : semiMajorAxis must be greater than or equal to the semiMinorAxis.
-
DeveloperError : granularity must be greater than zero.
Example:
const ellipse = new Cesium.EllipseOutlineGeometry({
center : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
semiMajorAxis : 500000.0,
semiMinorAxis : 300000.0,
rotation : Cesium.Math.toRadians(60.0)
});
const geometry = Cesium.EllipseOutlineGeometry.createGeometry(ellipse);
See:
Members
The number of elements used to pack the object into an array.
Methods
static Cesium.EllipseOutlineGeometry.createGeometry(ellipseGeometry) → Geometry|undefined
Computes the geometric representation of an outline of an ellipse on an ellipsoid, including its vertices, indices, and a bounding sphere.
Name | Type | Description |
---|---|---|
ellipseGeometry |
EllipseOutlineGeometry | A description of the ellipse. |
Returns:
The computed vertices and indices.
Stores the provided instance into the provided array.
Name | Type | Default | Description |
---|---|---|---|
value |
EllipseOutlineGeometry | The value to pack. | |
array |
Array.<Number> | The array to pack into. | |
startingIndex |
Number |
0
|
optional The index into the array at which to start packing the elements. |
Returns:
The array that was packed into
static Cesium.EllipseOutlineGeometry.unpack(array, startingIndex, result) → EllipseOutlineGeometry
Retrieves an instance from a packed array.
Name | Type | Default | Description |
---|---|---|---|
array |
Array.<Number> | The packed array. | |
startingIndex |
Number |
0
|
optional The starting index of the element to be unpacked. |
result |
EllipseOutlineGeometry | optional The object into which to store the result. |
Returns:
The modified result parameter or a new EllipseOutlineGeometry instance if one was not provided.