All examples By author By category About

hdickie

Full window Github gist

HW 4

<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>Traditional Node Layout, Straight Edges</h2>
<svg id="traditional"></svg>

<h2>Dendrogram Node Layout, Curved Edges</h2>
<svg id="dendrogram"></svg>

<h2>Circular Traditional Node Layout, Straight Edges</h2>
<svg id="circular_traditional"></svg>

<h2>Circular Dendrogram Node Layout, Curved Edges</h2>
<svg id="circular_dendrogram"></svg>

<h2>Circle Packing</h2>
<svg id="circle_packing"></svg>

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

<h2>Icicle Layout</h2>
<svg id="icicle_layout"></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 = "https://gist.githubusercontent.com/mbostock/4339184/raw/aa24e1009864fc911a76935a740c9481a91cfc16/flare.csv";

d3.csv(file, convert, callback);

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

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

console.log("data:", data.length, data);

// used to create hierarchies
    // https://github.com/d3/d3-hierarchy#stratify
    var stratify = d3.stratify()
      .id(function(d) { return d.id; })
      .parentId(function(d) {
        // should match existing id (except for root)
        return d.id.substring(0, d.id.lastIndexOf("."));
      });

// convert csv into hierarchy
    var root = stratify(data);

// sort by height then value
    // https://github.com/d3/d3-hierarchy#node_sort
    root.sort(function(a, b) {
        if (a.height != b.height) {
          return d3.ascending(a.height, b.height);
        }
        else {
          return d3.ascending(a.value, b.value);
        }
      });

console.log("root:", root);

// setup color scale
    color.domain(d3.range(root.height + 1));
    color.range(d3.schemeYlGnBu[root.height + 1]);

drawTraditionalStraight("traditional", root.copy());
    drawDendrogramCurved("dendrogram", root.copy());
    drawCircularTraditional("circular_traditional", root.copy());
    drawCircularDendrogram("circular_dendrogram", root.copy());
    drawCirclePacking("circle_packing", root.copy());
    drawTreeMap("treemap", root.copy());
    drawIcicleLayout("icicle_layout", root.copy());
}

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

function drawTraditionalStraight(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));

// setup node layout generator
  var tree = d3.tree()
    .size([ config.w - 2 * config.pad,
            config.h - 2 * config.pad]);

// run layout to calculate x, y attributes
  tree(root);

// create line generator
  var straightLine = function(d) {
    return line([d.source, d.target]);
  }

drawLinks(g, root.links(), straightLine);
  drawNodes(g, root.descendants(), true);
}

function drawDendrogramCurved(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));

// setup node layout generator
  var cluster = d3.cluster()
    .size([ config.w - 2 * config.pad,
            config.h - 2 * config.pad]);

// run layout to calculate x, y attributes
  cluster(root);

// create line generator
  var curvedLine = function(d) {
    // select edge layout generator for curved lines
    // https://github.com/d3/d3-shape/issues/27
    var mid = (d.source.y + d.target.y) / 2;
    return "M" + d.source.x + "," + d.source.y
      + "C" + d.source.x + "," + mid
      + " " + d.target.x + "," + mid
      + " " + d.target.x + "," + d.target.y;
  }

drawLinks(g, root.links(), curvedLine);
  drawNodes(g, root.descendants(), true);
}

function drawCircularTraditional(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");

// for polar coordinates, easier if treat (0, 0) as center
  g.attr("transform", translate(config.w / 2, config.h / 2));

// setup node layout generator
  // let x be theta (in degrees) and y be radial
  var tree = d3.tree().size([360, (config.d / 2) - config.pad]);

// run layout to calculate x, y attributes
  tree(root);

// x, y are in polar coordinates
  // must convert back into cartesian coordinates
  root.each(function(d) {
    d.theta = d.x;
    d.radial = d.y;

var point = toCartesian(d.radial, d.theta);
    d.x = point.x;
    d.y = point.y;
  });

// create line generator
  var straightLine = function(d) {
    return line([d.source, d.target]);
  }

drawLinks(g, root.links(), straightLine);
  drawNodes(g, root.descendants(), true);
}

function drawCircularDendrogram(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");

// for polar coordinates, easier if treat (0, 0) as center
  g.attr("transform", translate(config.w / 2, config.h / 2));

// setup node layout generator
  // let x be theta (in degrees) and y be radial
  var cluster = d3.cluster().size([360, (config.d / 2) - config.pad]);

// run layout to calculate x, y attributes
  cluster(root);

// x, y are in polar coordinates
  // must convert back into cartesian coordinates
  root.each(function(d) {
    d.theta = d.x;
    d.radial = d.y;

var point = toCartesian(d.radial, d.theta);
    d.x = point.x;
    d.y = point.y;
  });

// create hacky v4 curved link generator for radial
  var curvedLine = function(d) {
    var mid = (d.source.radial + d.target.radial) / 2;
    var v0 = toCartesian(mid, d.source.theta);
    var v1 = toCartesian(mid, d.target.theta);
    return "M" + d.source.x + "," + d.source.y
      + "C" + v0.x + "," + v0.y
      + " " + v1.x + "," + v1.y
      + " " + d.target.x + "," + d.target.y;
  };

drawLinks(g, root.links(), curvedLine);
  drawNodes(g, root.descendants(), true);
}

function drawCirclePacking(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");

// translate so circle is in middle of plot area
  var xshift = config.pad + (config.w - config.d) / 2;
  var yshift = config.pad + (config.h - config.d) / 2;
  g.attr("transform", translate(xshift, yshift));

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

// setup circle packing layout
  var diameter = config.d - 2 * config.pad;
  var pack = d3.pack().size([diameter, diameter]).padding(1);

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

// draw nested circles
  drawNodes(g, root.descendants(), false);
}

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);
    });
}

function drawIcicleLayout(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 rectangles
  root.sum(function(d) { return d.value; });

// setup node layout generator
  var partition = d3.partition()
    .size([ config.w - 2 * config.pad,
            config.h - 2 * config.pad]);

// run layout to calculate x0, y0, x1, and y1 attributes
  partition(root);

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

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