I am trying to create a custom arrow head with 2 simple lines to look like the first attachment (arrowhead-doubleline.jpg). I have the code as follows but it does not represent a 2 single lines. If someone can point me in the right direction here, it would be most helpful.

        public static Shape OnlyOneArrowHead { get; } = new Shape(
                new ElementTemplate[]
                {
                    new LineTemplate(20, 50, 80, 50),
                    new LineTemplate(20, 100, 80, 100)
                },
                FillRule.EvenOdd
            );


As a follow up, I would also like an arrow head like the second attachment. Some assistance on this would be great as well.

Thanks in advance for the assistance!

Try this for second shape -

public static Shape CircleLineHead = new Shape(
    new ElementTemplate[]
    {
        new ArcTemplate(20, 60, 60, 60, 0, 360),
    },
    new ElementTemplate[]
    {
        new LineTemplate(20, 30, 80, 30)
    },
    null,
    FillRule.EvenOdd
); 

Regards,
Slavcho