GoLink Types

Hi Walter - please advice me on the best approach to create a GoLink class that I can switch to create this type of link lines.

I think overriding Paint and drawing the symbols is the best approach. (The dashed line you could do with Pen Style.)

The AnimatedBasicApp same (new in 3.0) would show you how to get the segments of the link and compute locations along the path. (your "Step" will be larger.)
Your problem is harder if you want the symbols to match the angle of the link, you have to do some rotation of shapes. (Orthogonal links only give you horizontal and vertical case to handle.)

Thanks Jake I got it implemented