d3 js - clustering bubbles to segments

Question

**** LATEST FIDDLE --- https://jsfiddle.net/tk5xog0g/8/

-- 2nd fiddle with a custom chart -- randomly placing the bubbles closer to region zones but can not account

Answer 1

Latest fiddle. http://jsfiddle.net/NYEaX/1505/

( http://jsfiddle.net/NYEaX/1506/ )- refactored

 1. -- how to animate the arcs
 2. -- how to animate the bubbles
 3. -- adding back the randomise button to test with 2 dummy data sets.

---

this is the old pie animations and worked very well

                /* ------- ANIMATE PIE SLICES -------*/
                var slice = doughpie.select(".slices").selectAll("path.slice")
                  .data(pie(data), key);

                slice.enter()
                  .insert("path")
                  .style("fill", function(d) {
                    return color(d.data.label);
                  })
                  .style("transform", function(d, i){
                    //return "translate(0, 0)";
                  })
                  .attr("class", "slice");

                slice
                  .transition().duration(1000)
                  .attrTween("d", function(d) {
                    this._current = this._current || d;
                    var interpolate = d3.interpolate(this._current, d);
                    this._current = interpolate(0);
                    return function(t) {
                      return arc(interpolate(t));
                    };
                  })

                slice.exit()
                  .remove();
                /* ------- ANIMATE PIE SLICES -------*/

//this is the current pie arcs - but when I try and animate the pie in the same manner - it fails.

var g = svg.selectAll(".arc")
  .data(pie(data))
  .enter().append("g")
  .attr("class", "arc");

g.append("path")
  .attr("d", arc)
  .style("fill", function(d) {
    return color(d.data.label);
  });

arc
  .outerRadius(radius - 10)
  .innerRadius(0);