}; var inputFS = 16; var svg = d3.select("svg"); var margin = 20; var diameter = +svg.attr("height"); if(w<=h){ diameter = +svg.attr("width"); } var g = svg.append("g").attr("transform", "translate(" + w / 2 + "," + h / 2 + ")"); var color = d3.scaleLinear() .domain([-1, 5]) .range(["hsl(152,80%,80%)", "hsl(228,30%,40%)"]) .interpolate(d3.interpolateHcl); var pack = d3.pack() .size([diameter - margin, diameter - margin]) .padding(2); root = d3.hierarchy(root) .sum(function(d) { return d.c; }) .sort(function(a, b) { return b.value - a.value; }); var focus = root, nodes = pack(root).descendants(), view; var circle = g.selectAll("circle") .data(nodes) .enter().append("circle") .attr("class", function(d) { return d.parent ? d.children ? "node" : "node node--leaf" : "node node--root"; }) .style('fill','white') .style("fill", function(d) { return d.children ? color(d.depth) : 'white'; }) .on("click", function(d) { if (focus !== d) zoom(d), d3.event.stopPropagation(); }); var text = g.selectAll("text") .data(nodes) .enter().append("text") .attr("class", "label") .style('font','11px "Helvetica Neue", Helvetica, Arial, sans-serif') .style('text-anchor','middle') .style('text-shadow','0 1px 0 #fff, 1px 0 0 #fff, -1px 0 0 #fff, 0 -1px 0 #fff') .style("fill-opacity", function(d) { return d.parent === root ? 1 : 0; }) .style("display", function(d) { return d.parent === root ? "inline" : "none"; }) .text(function(d) { return d.data.name+':'+d.data.c; }); var node = g.selectAll("circle,text"); svg.style("background", color(-1)).on("click", function() { zoom(root); }); zoomTo([root.x, root.y, root.r * 2 + margin]); function zoom(d) { var focus0 = focus; focus = d; var transition = d3.transition() .duration(d3.event.altKey ? 7500 : 750) .tween("zoom", function(d) { var i = d3.interpolateZoom(view, [focus.x, focus.y, focus.r * 2 + margin]); return function(t) { zoomTo(i(t)); }; }); transition.selectAll("text") .filter(function(d) { return d.parent === focus || this.style.display === "inline"; }) .style('font','11px "Helvetica Neue", Helvetica, Arial, sans-serif') .style('text-anchor','middle') .style('text-shadow','0 1px 0 #fff, 1px 0 0 #fff, -1px 0 0 #fff, 0 -1px 0 #fff') .style("fill-opacity", function(d) { return d.parent === focus ? 1 : 0; }) .on("start", function(d) { if (d.parent === focus) this.style.display = "inline"; }) .on("end", function(d) { if (d.parent !== focus) this.style.display = "none"; }); } function zoomTo(v) { var k = diameter / v[2]; view = v; node.attr("transform", function(d) { return "translate(" + (d.x - v[0]) * k + "," + (d.y - v[1]) * k + ")"; }); circle.attr("r", function(d) { return d.r * k; }); }