//mxd.
        public Vector2D GetHitPosition()
        {
            Vector3D start = General.Map.VisualCamera.Position;
            Vector3D delta = General.Map.VisualCamera.Target - General.Map.VisualCamera.Position;

            delta = delta.GetFixedLength(General.Settings.ViewDistance * 0.98f);
            VisualPickResult target = PickObject(start, start + delta);

            if (target.picked == null)
            {
                return(new Vector2D(float.NaN, float.NaN));
            }

            // Now find where exactly did we hit
            VisualGeometry vg = target.picked as VisualGeometry;

            if (vg != null)
            {
                return(GetIntersection(start, start + delta, vg.BoundingBox[0], new Vector3D(vg.Vertices[0].nx, vg.Vertices[0].ny, vg.Vertices[0].nz)));
            }


            VisualThing vt = target.picked as VisualThing;

            if (vt != null)
            {
                return(GetIntersection(start, start + delta, vt.CenterV3D, D3DDevice.V3D(vt.Center - vt.PositionV3)));
            }

            return(new Vector2D(float.NaN, float.NaN));
        }