Circle Pack Label Truncation

<!DOCTYPE HTML>
<html>
<head>
    <title>Circle Pack with Truncated Labels</title>
    <meta charset="utf-8">
    
    
    <script type="text/javascript" src="https://www.billdwhite.com/wordpress/wp-content/js/d3/d3.js"></script>
    
    <style type="text/css">
        html, body {
            overflow: hidden;
            margin: 0;
            font-family: "Helvetica Neue", Helvetica;
        }
        text {
            font-size: 11px;
            pointer-events: none;
        }

text.parent {
            fill: #1f77b4;
        }

circle {
            fill: #ccc;
            stroke: #999;
            pointer-events: all;
        }

circle.parent {
            fill: #1f77b4;
            fill-opacity: .1;
            stroke: steelblue;
        }

circle.parent:hover {
            stroke: #ff7f0e;
            stroke-width: .5px;
        }

circle.child {
            pointer-events: none;
        }
    </style>
</head>
<body>

var pack = d3.layout.pack()
        .size([r, r])
        .value(function(d) { return d.size; });

var vis = d3.select("body").insert("svg:svg", "h2")
        .attr("width", w)
        .attr("height", h)
        .append("svg:g")
        .attr("transform", "translate(" + (w - r) / 2 + "," + (h - r) / 2 + ")");

d3.json("https://www.billdwhite.com/wordpress/wp-content/data/flare2.json", function(data) {
        node = root = data;

var nodes = pack.nodes(root);

vis.selectAll("circle")
            .data(nodes)
            .enter().append("svg:circle")
            .attr("class", function(d) { return d.children ? "parent" : "child"; })
            .attr("cx", function(d) { return d.x; })
            .attr("cy", function(d) { return d.y; })
            .attr("r", function(d) { return d.r; })
            .on("click", function(d) { return zoom(node == d ? root : d); });

vis.selectAll("text")
            .data(nodes)
            .enter().append("svg:text")
            .attr("class", function(d) { return d.children ? "parent" : "child"; })
            .attr("x", function(d) { return d.x; })
            .attr("y", function(d) { return d.y; })
            .attr("dy", ".35em")
            .attr("text-anchor", "middle")
            .style("opacity", function(d) { return d.r > 20 ? 1 : 0; })
            .text(function(d) {
                return d.name;
            });

d3.select(window).on("click", function() { zoom(root); });
    });

function zoom(d, i) {
        var k = r / d.r / 2;
        x.domain([d.x - d.r, d.x + d.r]);
        y.domain([d.y - d.r, d.y + d.r]);

var t = vis.transition()
            .duration(d3.event.altKey ? 7500 : 750);

t.selectAll("circle")
            .attr("cx", function(d) { return x(d.x);  })
            .attr("cy", function(d) { return y(d.y);  })
            .attr("r", function(d)  { return k * d.r; });

// updateCounter is a hacky way to determine when transition is finished
        var updateCounter = 0;

t.selectAll("text")
            .style("opacity", 0)
            .attr("x", function(d) { return x(d.x); })
            .attr("y", function(d) { return y(d.y); })
            .each(function(d, i) {
                updateCounter++;
            })
            .each("end", function(d, i) {
                updateCounter--;
                if (updateCounter == 0) {
                    adjustLabels(k);
                }
            });

node = d;
        d3.event.stopPropagation();
    }

Modified http://www.billdwhite.com/wordpress/wp-content/js/d3/d3.js to a secure url

https://www.billdwhite.com/wordpress/wp-content/js/d3/d3.js