GroundPolylineGeometry

new Cesium.GroundPolylineGeometry(options)
engine/Source/Core/GroundPolylineGeometry.js 74

A description of a polyline on terrain or 3D Tiles. Only to be used with GroundPolylinePrimitive.
Name Type Description
options object Options with the following properties:
Name Type Default Description
positions Array.<Cartesian3> An array of Cartesian3 defining the polyline's points. Heights above the ellipsoid will be ignored.
width number 1.0 optional The screen space width in pixels.
granularity number 9999.0 optional The distance interval in meters used for interpolating options.points. Defaults to 9999.0 meters. Zero indicates no interpolation.
loop boolean false optional Whether during geometry creation a line segment will be added between the last and first line positions to make this Polyline a loop.
arcType ArcType ArcType.GEODESIC optional The type of line the polyline segments must follow. Valid options are ArcType.GEODESIC and ArcType.RHUMB.
Throws:
Example:
const positions = Cesium.Cartesian3.fromDegreesArray([
  -112.1340164450331, 36.05494287836128,
  -112.08821010582645, 36.097804071380715,
  -112.13296079730024, 36.168769146801104
]);

const geometry = new Cesium.GroundPolylineGeometry({
  positions : positions
});
See:

Members

arcType : ArcType
engine/Source/Core/GroundPolylineGeometry.js 122

The type of path the polyline must follow. Valid options are ArcType.GEODESIC and ArcType.RHUMB.
Default Value: ArcType.GEODESIC

granularity : boolean
engine/Source/Core/GroundPolylineGeometry.js 107

The distance interval used for interpolating options.points. Zero indicates no interpolation. Default of 9999.0 allows centimeter accuracy with 32 bit floating point.
Default Value: 9999.0

loop : boolean
engine/Source/Core/GroundPolylineGeometry.js 115

Whether during geometry creation a line segment will be added between the last and first line positions to make this Polyline a loop. If the geometry has two positions this parameter will be ignored.
Default Value: false

width : number
engine/Source/Core/GroundPolylineGeometry.js 97

The screen space width in pixels.

Methods

static Cesium.GroundPolylineGeometry.pack(value, array, startingIndex) → Array.<number>
engine/Source/Core/GroundPolylineGeometry.js 294

Stores the provided instance into the provided array.
Name Type Default Description
value PolygonGeometry 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.GroundPolylineGeometry.unpack(array, startingIndex, result)
engine/Source/Core/GroundPolylineGeometry.js 333

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 PolygonGeometry optional The object into which to store the result.
Need help? The fastest way to get answers is from the community and team on the Cesium Forum.
packages/engine
packages/widgets