Box2D.Common.Vec2.Sub C# (CSharp) Method

        public Vec2 Sub(Vec2 v)
        {
            return new Vec2(X - v.X, Y - v.Y);
        }

 /// <summary>
 /// Initialize the bodies, anchors, and length using the world anchors.
 /// </summary>
 /// <param name="b1">First body</param>
 /// <param name="b2">Second body</param>
 /// <param name="anchor1">World anchor on first body</param>
 /// <param name="anchor2">World anchor on second body</param>
 public void Initialize(Body b1, Body b2, Vec2 anchor1, Vec2 anchor2)
 {
     BodyA = b1;
     BodyB = b2;
     LocalAnchorA.Set(BodyA.GetLocalPoint(anchor1));
     LocalAnchorB.Set(BodyB.GetLocalPoint(anchor2));
     Vec2 d = anchor2.Sub(anchor1);
     Length = d.Length();
 }