static void ClosestLine()
{
//Collect data from user
Console.Write("Enter the x coordinate of the ship (km): ");
float x = Convert.ToSingle(Console.ReadLine());
Console.Write("Enter the y coordinate of the ship (km): ");
float y = Convert.ToSingle(Console.ReadLine());
Console.Write("Enter the z coordinate of the ship (km): ");
float z = Convert.ToSingle(Console.ReadLine());
Vector3D ship = new Vector3D(x, y, z); //km
Console.Write("Enter the x coordinate of the meteor (km): ");
x = Convert.ToSingle(Console.ReadLine());
Console.Write("Enter the y coordinate of the meteor (km): ");
y = Convert.ToSingle(Console.ReadLine());
Console.Write("Enter the z coordinate of the meteor (km): ");
z = Convert.ToSingle(Console.ReadLine());
Vector3D meteor = new Vector3D(x, y, z); //km
Console.Write("Enter the x coordinate of the meteor's trajectory (km/s): ");
x = Convert.ToSingle(Console.ReadLine());
Console.Write("Enter the y coordinate of the meteor's trajectory (km/s): ");
y = Convert.ToSingle(Console.ReadLine());
Console.Write("Enter the z coordinate of the meteor's trajectory (km/s): ");
z = Convert.ToSingle(Console.ReadLine());
Vector3D trajectory = new Vector3D(x, y, z); //km/s
//The mathening
Vector3D closestPoint = ship.ClosestPointLine(meteor, trajectory); //km, the closest point on the line
//Output
Console.WriteLine("Closest Point is: " + closestPoint + " km");
Console.WriteLine("Distance of closest approach is: {0:N2} km", (closestPoint - ship).GetMagnitude());
}
