// from https://cesiumjs.org/2013/05/09/Computing-the-horizon-occlusion-point/
public static Vector3 FromPoints(ref Vector3[] points, BBSphere boundingSphere)
{
if (points.Length < 1)
{
throw new ArgumentException("Your list of points must contain at least 2 points");
}
// Bring coordinates to ellipsoid scaled coordinates
for (int i = 0; i < points.Length; i++)
{
points[i].X = points[i].X * rX;
points[i].Y = points[i].Y * rY;
points[i].Z = points[i].Z * rZ;
}
boundingSphere.Center.X = boundingSphere.Center.X * rX;
boundingSphere.Center.Y = boundingSphere.Center.Y * rY;
boundingSphere.Center.Z = boundingSphere.Center.Z * rZ;
Double maxMagnitude = double.NegativeInfinity;
for (int i = 0; i < points.Length; i++)
{
//magnitudes.Add(ComputeMagnitude(points[i], boundingSphere.Center));
var magnitude = ComputeMagnitude(points[i], boundingSphere.Center);
if (magnitude > maxMagnitude)
{
maxMagnitude = magnitude;
}
}
return(Cartesian3D.MultiplyByScalar(boundingSphere.Center, maxMagnitude));
}
public TileInfo()
{
BoundingSphere = new BBSphere();
}