Canvas mousemove event on Item

Canvas mousemove event on Item

I have 3 arc starting points on canvas area , so when user drags any one of the arc, I want to draw a circle until he drags in clockwise direction and remove on anti clockwise direction.

My issue is how can I get the exact arc out of 3 he is dragging and till what position and direction he dragged.

I have tried from google as below but not luck , please see jsfiddle and suggest.



http://jsfiddle.net/ineffablep/azh8ma89/38/