hw 4 treemap

forked from hdickie's block: hw 4 treemap

<script src="https://d3js.org/d3.v4.min.js"></script>
  <script src="https://d3js.org/d3-scale-chromatic.v1.min.js"></script>

<link href="https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,900|Source+Code+Pro:300" rel="stylesheet" type="text/css">
  <link rel="stylesheet" href="style.css">

<script src="helpers.js"></script>
  <script src="tooltip.js"></script>
</head>

<body>
<h2>Treemap</h2>
<svg id="treemap"></svg>

// accessor functions for x and y
var x = function(d) { return d.x; };
var y = function(d) { return d.y; };

// normal line generator
var line = d3.line()
  .curve(d3.curveLinear)
  .x(x)
  .y(y);

// configure size, margin, and circle radius
var config = {
    w: 900,
    h: 450,
    r: 4,
    pad: 10
};

// maximum diameter of circle is minimum dimension
config.d = Math.min(config.w, config.h);

var file = "java8.csv";

d3.csv(file, convert, callback);

function convert(row) {
  var parts = row.name.split(".");
  row.id = row.name;
  row.name = parts[parts.length - 1];
  row.value = +row.size;
  return row;
}

function callback(error, data) {
if (error) {
        console.warn(file, error);
        return;
    }

drawTreeMap("treemap", root.copy());
}

function drawLinks(g, links, generator) {
  var paths = g.selectAll("path")
    .data(links)
    .enter()
    .append("path")
    .attr("d", generator)
    .attr("class", "link");
}

function drawTreeMap(id, root) {
  var svg = d3.select("body").select("#" + id);
  svg.attr("width", config.w);
  svg.attr("height", config.h);

var g = svg.append("g");
  g.attr("id", "plot");
  g.attr("transform", translate(config.pad, config.pad));

// calculate sum for nested circles
  root.sum(function(d) { return d.value; });

// setup treemap layout
  var treemap = d3.treemap()
    .padding(5)
    .size([ config.w - 2 * config.pad,
            config.h - 2 * config.pad]);

// run layout to calculate x, y, and r attributes
  treemap(root);

// draw nested rectangles
  var rects = g.selectAll("rect")
    .data(root.descendants())
    .enter()
    .append("rect")
    .attr("x", function(d) { return d.x0; })
    .attr("y", function(d) { return d.y0; })
    .attr("width", function(d) { return d.x1 - d.x0; })
    .attr("height", function(d) { return d.y1 - d.y0; })
    .attr("id", function(d) { return d.data.name; })
    .attr("class", "node")
    .style("fill", function(d) {return color(d.depth)})
    .on("mouseover.tooltip", function(d) {
      show_tooltip(g, d3.select(this));
      d3.select(this).classed("selected", true);
    })
    .on("mouseout.tooltip", function(d) {
      g.select("#tooltip").remove();
      d3.select(this).classed("selected", false);
    });
}

</script>
</body>

https://d3js.org/d3.v4.min.js

https://d3js.org/d3-scale-chromatic.v1.min.js