PolylineGeometry

new Cesium.PolylineGeometry(options)

A description of a polyline modeled as a line strip; the first two positions define a line segment, and each additional position defines a line segment from the previous position. The polyline is capable of displaying with a material.
Name Type Description
options Object Object with the following properties:
Name Type Default Description
positions Array.<Cartesian3> An array of Cartesian3 defining the positions in the polyline as a line strip.
width Number 1.0 optional The width in pixels.
colors Array.<Color> optional An Array of Color defining the per vertex or per segment colors.
colorsPerVertex Boolean false optional A boolean that determines whether the colors will be flat across each segment of the line or interpolated across the vertices.
followSurface Boolean true optional A boolean that determines whether positions will be adjusted to the surface of the ellipsoid via a great arc.
granularity Number CesiumMath.RADIANS_PER_DEGREE optional The distance, in radians, between each latitude and longitude if options.followSurface=true. Determines the number of positions in the buffer.
vertexFormat VertexFormat VertexFormat.DEFAULT optional The vertex attributes to be computed.
ellipsoid Ellipsoid Ellipsoid.WGS84 optional The ellipsoid to be used as a reference.
Throws:
Example:
// A polyline with two connected line segments
var polyline = new Cesium.PolylineGeometry({
  positions : Cesium.Cartesian3.fromDegreesArray([
    0.0, 0.0,
    5.0, 0.0,
    5.0, 5.0
  ]),
  width : 10.0
});
var geometry = Cesium.PolylineGeometry.createGeometry(polyline);
Demo:
See:
  • PolylineGeometry#createGeometry

Members

packedLength : Number

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

Methods

staticCesium.PolylineGeometry.createGeometry(polylineGeometry) → Geometry|undefined

Computes the geometric representation of a polyline, including its vertices, indices, and a bounding sphere.
Name Type Description
polylineGeometry PolylineGeometry A description of the polyline.
Returns:
The computed vertices and indices.

staticCesium.PolylineGeometry.pack(value, array, startingIndex) → Array.<Number>

Stores the provided instance into the provided array.
Name Type Default Description
value PolylineGeometry 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.PolylineGeometry.unpack(array, startingIndex, result) → PolylineGeometry

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