using System;

namespace Science.Physics.GeneralPhysics
{
	/// <summary>
	/// Torque is given by position and force.
	/// </summary>
	public class Torque : Vector
	{
		private void SetDim()
		{
			this.DimensionMass = 1;
			this.DimensionLength = 2;
			this.DimensionTime = -2;
		}
		public Torque()
		{
			SetDim();
		}
		public Torque(Position r, Force f)
		{
			SetDim();
			this.X = (r%f).X;
			this.Y = (r%f).Y;
			this.Z = (r%f).Z;
		}
		public Torque(MomentOfInertia I, AngularAcceleration alpha)
		{
			SetDim();
			Vector v = I*alpha;
			this.X = v.X;
			this.Y = v.Y;
			this.Z = v.Z;
		}
		public double Nm
		{
			get{return this.Norm;}
		}
        public override string ToString()
        {
            return base.ToString() + "(Nm)";
        }
	}
}