/// <summary>
/// Determines if the specified point is inside the sphere.
/// </summary>
/// <param name="point">
/// The point.
/// </param>
/// <returns>
/// True if the point is inside.
/// </returns>
public bool Contains(Point3D point)
{
return(point.DistanceToSquared(this.center) < this.radius * this.radius);
}
