computeOccludeePoint
Computes a point that can be used as the occludee position to the visibility functions. Use a radius of zero for the occludee radius. Typically, a user computes a bounding sphere around an object that is used for visibility; however it is also possible to compute a point that if seen/not seen would also indicate if an object is visible/not visible. This function is better called for objects that do not move relative to the occluder and is large, such as a chunk of terrain. You are better off not calling this and using the object's bounding sphere for objects such as a satellite or ground vehicle.
const cameraPosition = new Cartesian3(0, 0, 0);
const occluderBoundingSphere = new BoundingSphere(new Cartesian3(0, 0, -8), 2);
const occluder = new Occluder(occluderBoundingSphere, cameraPosition);
const positions = [new Cartesian3(-0.25, 0, -5.3), new Cartesian3(0.25, 0, -5.3)];
const tileOccluderSphere = BoundingSphere.fromPoints(positions);
const occludeePosition = tileOccluderSphere.center;
const occludeePt = Occluder.computeOccludeePoint(occluderBoundingSphere, occludeePosition, positions);Return
An object containing two attributes: occludeePoint and valid which is a boolean value.
Parameters
The bounding sphere surrounding the occluder.
The point where the occludee (bounding sphere of radius 0) is located.
List of altitude points on the horizon near the surface of the occluder.