new PolylineVolumeGeometry(options)
A description of a polyline with a volume (a 2D shape extruded along a polyline).
Name | Type | Description | ||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
options |
Object |
Object with the following properties:
|
- PolylineVolumeGeometry#createGeometry
Example:
function computeCircle(radius) {
var positions = [];
for (var i = 0; i < 360; i++) {
var radians = Cesium.Math.toRadians(i);
positions.push(new Cesium.Cartesian2(radius * Math.cos(radians), radius * Math.sin(radians)));
}
return positions;
}
var volume = new Cesium.PolylineVolumeGeometry({
vertexFormat : Cesium.VertexFormat.POSITION_ONLY,
polylinePositions : Cesium.Cartesian3.fromDegreesArray([
-72.0, 40.0,
-70.0, 35.0
]),
shapePositions : computeCircle(100000.0)
});
Demo:
See:
Members
-
packedLength :Number
-
The number of elements used to pack the object into an array.
Methods
-
staticPolylineVolumeGeometry.createGeometry(polylineVolumeGeometry) → Geometry|undefined
-
Computes the geometric representation of a polyline with a volume, including its vertices, indices, and a bounding sphere.
Name Type Description polylineVolumeGeometry
PolylineVolumeGeometry A description of the polyline volume. Returns:
The computed vertices and indices. -
staticPolylineVolumeGeometry.pack(value, array, startingIndex)
-
Stores the provided instance into the provided array.
Name Type Default Description value
Object 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. -
staticPolylineVolumeGeometry.unpack(array, startingIndex, result)
-
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
PolylineVolumeGeometry optional The object into which to store the result.