CircleGeometry

new Cesium.CircleGeometry(options) Core/CircleGeometry.js 51

A description of a circle on the ellipsoid. Circle geometry can be rendered with both `Primitive` and `GroundPrimitive`.
Name Type Description
`options` Object Object with the following properties:
Name Type Default Description
`center` Cartesian3 The circle's center point in the fixed frame.
`radius` Number The radius in meters.
`ellipsoid` Ellipsoid `Ellipsoid.WGS84` optional The ellipsoid the circle will be on.
`height` Number `0.0` optional The distance in meters between the circle and the ellipsoid surface.
`granularity` Number `0.02` optional The angular distance between points on the circle in radians.
`vertexFormat` VertexFormat `VertexFormat.DEFAULT` optional The vertex attributes to be computed.
`extrudedHeight` Number `0.0` optional The distance in meters between the circle's extruded face and the ellipsoid surface.
`stRotation` Number `0.0` optional The rotation of the texture coordinates, in radians. A positive rotation is counter-clockwise.
Example:
``````// Create a circle.
var circle = new Cesium.CircleGeometry({
center : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
});
var geometry = Cesium.CircleGeometry.createGeometry(circle);``````

Members

staticCesium.CircleGeometry.packedLength : Number Core/CircleGeometry.js 79

The number of elements used to pack the object into an array.

Methods

staticCesium.CircleGeometry.createGeometry(circleGeometry) → Geometry|undefined Core/CircleGeometry.js 152

Computes the geometric representation of a circle on an ellipsoid, including its vertices, indices, and a bounding sphere.
Name Type Description
`circleGeometry` CircleGeometry A description of the circle.
Returns:
The computed vertices and indices.

staticCesium.CircleGeometry.pack(value, array, startingIndex) → Array.<Number> Core/CircleGeometry.js 90

Stores the provided instance into the provided array.
Name Type Default Description
`value` CircleGeometry 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

staticCesium.CircleGeometry.unpack(array, startingIndex, result) → CircleGeometry Core/CircleGeometry.js 124

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` CircleGeometry optional The object into which to store the result.
Returns:
The modified result parameter or a new CircleGeometry instance if one was not provided.