new Cesium.PolylineVolumeOutlineGeometry(options)

A description of a polyline with a volume (a 2D shape extruded along a polyline).
参数名称 类型 描述信息
options object Object with the following properties:
参数名称 类型 默认值 描述信息
polylinePositions Array.<Cartesian3> An array of positions that define the center of the polyline volume.
shapePositions Array.<Cartesian2> An array of positions that define the shape to be extruded along the polyline
ellipsoid Ellipsoid Ellipsoid.WGS84 可选 The ellipsoid to be used as a reference.
granularity number CesiumMath.RADIANS_PER_DEGREE 可选 The distance, in radians, between each latitude and longitude. Determines the number of positions in the buffer.
cornerType CornerType CornerType.ROUNDED 可选 Determines the style of the corners.
function computeCircle(radius) {
  const positions = [];
  for (let i = 0; i < 360; i++) {
    const radians = Cesium.Math.toRadians(i);
    positions.push(new Cesium.Cartesian2(radius * Math.cos(radians), radius * Math.sin(radians)));
  return positions;

const volumeOutline = new Cesium.PolylineVolumeOutlineGeometry({
  polylinePositions : Cesium.Cartesian3.fromDegreesArray([
    -72.0, 40.0,
    -70.0, 35.0
  shapePositions : computeCircle(100000.0)
  • PolylineVolumeOutlineGeometry#createGeometry


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


static Cesium.PolylineVolumeOutlineGeometry.createGeometry(polylineVolumeOutlineGeometry)Geometry|undefined

Computes the geometric representation of the outline of a polyline with a volume, including its vertices, indices, and a bounding sphere.
参数名称 类型 描述信息
polylineVolumeOutlineGeometry PolylineVolumeOutlineGeometry A description of the polyline volume outline.
The computed vertices and indices.

static Cesium.PolylineVolumeOutlineGeometry.pack(value, array, startingIndex)Array.<number>

Stores the provided instance into the provided array.
参数名称 类型 默认值 描述信息
value PolylineVolumeOutlineGeometry The value to pack.
array Array.<number> The array to pack into.
startingIndex number 0 可选 The index into the array at which to start packing the elements.
The array that was packed into

static Cesium.PolylineVolumeOutlineGeometry.unpack(array, startingIndex, result)PolylineVolumeOutlineGeometry

Retrieves an instance from a packed array.
参数名称 类型 默认值 描述信息
array Array.<number> The packed array.
startingIndex number 0 可选 The starting index of the element to be unpacked.
result PolylineVolumeOutlineGeometry 可选 The object into which to store the result.
The modified result parameter or a new PolylineVolumeOutlineGeometry instance if one was not provided.