Vue svg experiment

[Tron15]

I'm trying out a vue svg graph experiment from this section https://vuejs.org/v2/examples/svg.html. I would like to use my own shapes, but in this example it is a polygon and I like the controller feature. How can I reproduce this in my own svg experiment, would really appreciate your input. Here's my jsbin sketch which has two svg circles coded you can see in the output. https://jsbin.com/zobujiwice/edit?html,css,js,output