#CS-Arc
var arc = new Arc({
inner: 180, // inner radius
outer: 240, // outer radius
start: 0, // starting angle
end: 1, //ending angle
transition: 5000 // time in milliseconds
container: 'clock', // container id
name: 'inner' // arc id
});
Builds the arc svg and sets the internal d3 object
arc.render();
Takes in a percent and updates the arc with an animation
this.secondsArc.update(.5);