SolidworksAddinFramework.Geometry.Triangle.DropVectorC C# (CSharp) Method

        public Vector3 DropVectorC()
        {
            var vBC = C - B;
            var vBA = A - B;
            var vDropC = vBC.ProjectOn(vBA);
            var k = vBC-vDropC;
            return k;
        }
    }