src/bilevel-sunburst.js
function(p) {

            var self = this;

            if (!p) return;
            if (!p.parent) return;

            //console.log("zoom out p.value = " + p.parent.value);
            //console.log("zoom out p.name = " + p.parent.name);
            //console.log(p.parent);
            self.updateExplanation(p.parent.sum, p.parent.name);

            self.zoom(p.parent, p);
        }
function(p) {

            var self = this;

            if (!p) return;
            if (!p.parent) return;

            //console.log("zoom out p.value = " + p.parent.value);
            //console.log("zoom out p.name = " + p.parent.name);
            //console.log(p.parent);
            self.updateExplanation(p.parent.sum, p.parent.name);

            self.zoom(p.parent, p);
        }
function ( p ) { var self = this ; if ( ! p ) return ; if ( ! p . parent ) return ; //console.log("zoom out p.value = " + p.parent.value); //console.log("zoom out p.name = " + p.parent.name); //console.log(p.parent); self . updateExplanation ( p . parent . sum , p . parent . name ) ; self . zoom ( p . parent , p ) ; }
handle zoomout, for center circle.
handle zoomout for center circle .