The greatest scatterplot

In an attempt to encode as much information on screen at the same time while using as many different kinds of scales and symbols, I have created this scatterplot masterpiece.

This scatterplot uses:

Chernoff faces to encode a happiness rating of 1 to 100 (only the mouth encoding, with unhappy people frowning and happy people smiling but the rest of the features are slightly randomized so you don't feel like people all look the same.)
Superformula-based patterns to encode a fashion budget between $1-$1000+ per month (people who spend little on fashion wear polka dots)
Category20b for industry to color the patterns
Category20c for city of residence to color the t-shirt
Colorbrewer Green-Yellow-Red (7-value range) based on quantiles of the exercise per day to color the faces

People placed on scatterplot by age and income.

Most of the data here is made up.

<html>
<head>
  <title>D3 in Action Chapter 6 - Example 1</title>
  <meta charset="utf-8" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
<script src="superformula.js" type="text/JavaScript"></script>
<script src="chernoff.js" type="text/JavaScript"></script>
</head>
<style>
  svg {
    height: 850px;
    width: 900px;
    border: 1px solid gray;
  }
  g.am-axis text {
    font-size: 8px;
  }

.domain {
    fill: none;
  }

.tick > line{
    stroke: black;
    stroke-width: 1px;
    stroke-opacity: .25;
  }

g.face > path {
    fill: white;
    stroke: black;
    stroke-width: 1px;
  }

</style>
<body>

<div id="viz">
  <svg>
  </svg>
</div>
Shirt icon from Megan Mitchell via the Noun Project
<div/>
</body>
  <footer>

var face = d3.chernoff()
    .face(function(d) { return (Math.random() * 0.25) + 0.75 })
    .hair(-1)
    .mouth(function(d) { return happinessScale(d.happiness) })
    .nosew(function(d) { return (Math.random() * 0.25) + 0.75 })
    .noseh(function(d) { return (Math.random() * 0.25) + 0.75 })
    .eyew(function(d) { return (Math.random() * 0.25) + 0.75 })
    .eyeh(function(d) { return (Math.random() * 0.25) + 0.75 })
    .brow(function(d) { return (Math.random() * 0.25) - 0.5 });

dataset = [
  {label: "Susie", happiness: 95, fashion: 20, salary: 95000, age: 22, city: "San Francisco", industry: "Tech", exercise: 90},
  {label: "Randy", happiness: 75, fashion: 1, salary: 15000, age: 7, city: "San Francisco", industry: "Entertainment", exercise: 200},
  {label: "Sheila", happiness: 15, fashion: 750, salary: 45000, age: 41, city: "Rio", industry: "Sales", exercise: 130},
  {label: "Nathan", happiness: 50, fashion: 50, salary: 220000, age: 40, city: "Timbuktu", industry: "Crime", exercise: 300},
  {label: "Porsche", happiness: 1, fashion: 150, salary: 70000, age: 53, city: "Mumbai", industry: "Space Exploration", exercise: 0},
  {label: "Jafar", happiness: 60, fashion: 100, salary: 60000, age: 84, city: "Jakarta", industry: "Administration", exercise: 10},
  {label: "Rigel", happiness: 20, fashion: 100, salary: 50000, age: 74, city: "Beijing", industry: "Education", exercise: 120},
  {label: "Prim", happiness: 30, fashion: 800, salary: 20000, age: 24, city: "San Francisco", industry: "Tech", exercise: 300},
  {label: "Roy", happiness: 50, fashion: 500, salary: 20000, age: 28, city: "Atlanta", industry: "Crime", exercise: 200},
  {label: "Tim", happiness: 5, fashion: 10, salary: 200000, age: 54, city: "New York", industry: "Tech", exercise: 0},
  {label: "Sully", happiness: 100, fashion: 50, salary: 50000, age: 39, city: "Alexandria", industry: "Entertainment", exercise: 400},
  {label: "Hal", happiness: 40, fashion: 110, salary: 150000, age: 29, city: "Jakarta", industry: "Service", exercise: 40},
  {label: "Pip", happiness: 66, fashion: 180, salary: 180000, age: 45, city: "New York", industry: "Sales", exercise: 60},
  {label: "Cicero", happiness: 68, fashion: 660, salary: 90000, age: 80, city: "Mumbai", industry: "Space Exploration", exercise: 80},
  {label: "Leonard", happiness: 43, fashion: 680, salary: 45000, age: 55, city: "Alexandria", industry: "Construction", exercise: 150},
  {label: "Aditi", happiness: 22, fashion: 300, salary: 86000, age: 55, city: "Beijing", industry: "Art", exercise: 10},
  {label: "Jie", happiness: 10, fashion: 25, salary: 110000, age: 18, city: "Atlanta", industry: "Art", exercise: 50},
];

cities = ["San Francisco", "New York", "Atlanta", "Rio", "Beijing", "Paris", "Mumbai", "Timbuktu", "Alexandria", "Jakarta"];

industries = ["Tech", "Service", "Entertainment", "Construction", "Administration", "Sales", "Education", "Art", "Crime", "Space Exploration"]

exerciseValues = dataset.map(function (d) {return d.exercise});
happinessScale = d3.scale.linear().domain([1,100]).range([-1,1]);

ageScale = d3.scale.linear().domain([1,100]).range([0,800]);
fashionScaleN3 = d3.scale.linear().domain([20,200,1000]).range([2,-8,-8]).clamp(true);
fashionScaleN2 = d3.scale.linear().domain([20,200,1000]).range([2,1,-1]).clamp(true);
fashionScaleN1 = d3.scale.linear().domain([20,200,1000]).range([2,0.8,10]).clamp(true);
fashionScaleM = d3.scale.linear().domain([20,200,1000]).range([4,1,8]).clamp(true);
salaryScale = d3.scale.linear().domain([0,250000]).range([800,0]).clamp(true);
cityScale = d3.scale.category20c().domain(cities);
industryScale = d3.scale.category20b().domain(industries);
exerciseScale = d3.scale.quantile().domain(exerciseValues)
  .range(["#d73027","#fc8d59","#fee08b","#ffffbf","#d9ef8b","#91cf60","#1a9850"]);

xAxis = d3.svg.axis().scale(ageScale).orient("bottom").tickSize(800).ticks(4);
d3.select("svg").append("g").attr("id", "xAxisG").call(xAxis);

yAxis = d3.svg.axis().scale(salaryScale).orient("right").ticks(10).tickSize(800).tickSubdivide(10);

d3.select("svg").append("g").attr("id", "yAxisG").call(yAxis);

d3.select("svg").selectAll("g.people").data(dataset)
  .enter()
  .append("g")
  .attr("class", "people");

people = d3.selectAll("g.people");

people
  .attr("transform", function(d) {return "translate(" + (ageScale(d.age) - 21) + "," + (salaryScale(d.salary) - 60) + ")"})

people
  .append("path")
  .style("fill", function (d) {return cityScale(d.city)})
  .attr("transform", "translate(20,48)")
  .attr("d", "m 34.356212,6.8922268 c -0.0033,-0.0074 -0.0056,-0.0122 -0.01064,-0.02037 -0.03993,-0.07659 -0.07171,-0.137708 -0.103488,-0.194748 0.01549,0.02771 0.02852,0.05296 0.044,0.08067 -0.740694,-1.410493 -1.482202,-2.820988 -2.231045,-4.2274097 -1.819547,-3.42071617 -3.626057,-6.8789144 -5.709614,-10.1513306 -3.13878,-4.9306225 -8.874469,-5.7348725 -13.974579,-3.6651695 -3.3107122,1.3428639 -9.0195112,7.5584964 -11.48278516,7.5584964 -2.46246014,0 -7.92680614,-6.2156325 -11.23833284,-7.5584964 -5.080555,-2.06237 -10.766538,-1.246711 -13.891465,3.6651695 -2.084372,3.2724162 -3.890067,6.73061443 -5.712874,10.1513306 -0.767584,1.4447197 -1.528647,2.8926977 -2.289713,4.3406767 -0.456312,0.870254 -1.009591,1.583241 -0.620911,2.596909 0.62417,1.6247992 2.178894,2.9318092 3.574722,3.8827322 1.656579,1.127745 3.678208,2.052594 5.722651,1.99148 0.357718,-0.01142 1.342049,-0.01393 1.575094,-0.330013 0.324308,-0.43594 0.589947,-0.924848 0.870253,-1.390123 1.193749,-1.980073 2.35979,-3.9772562 3.525017,-5.9752542 -1.35264,9.5866442 -2.526016,19.2001762 -3.527461,28.8291912 -0.440829,4.238005 -0.852326,8.4809 -1.131818,12.730312 -0.152384,2.310899 -0.214305,1.654949 -0.09534,2.506462 0.123861,0.875957 1.090262,1.17419 1.86192,1.375457 2.04363,0.532908 14.2980731,1.219822 21.47359184,1.219822 7.16492496,0 19.56441116,-0.686914 21.60804116,-1.219822 0.770028,-0.200452 1.655764,-0.514167 1.861918,-1.375457 0.148301,-0.624986 0.05622,-0.195563 -0.09534,-2.506462 -0.280306,-4.249412 -0.692618,-8.492307 -1.132633,-12.730312 -1.001444,-9.6282 -2.174821,-19.242547 -3.527462,-28.8291912 1.166858,1.997184 2.330456,3.9951812 3.525831,5.9752542 0.281122,0.465275 0.545132,0.953368 0.86781,1.390123 0.235489,0.31616 1.217378,0.318605 1.578353,0.330013 2.044445,0.06112 4.064443,-0.863735 5.721022,-1.99148 1.395829,-0.950923 2.952181,-2.257933 3.576352,-3.8827322 0.386236,-1.005519 -0.154825,-1.715249 -0.611134,-2.575723 z m -58.346109,6.9954382 c -0.361792,0.527204 -2.253045,-0.144232 -4.223338,-1.498498 -1.971108,-1.355087 -3.27486,-2.8796612 -2.913068,-3.4068642 0.363419,-0.52639 2.254674,0.144232 4.224152,1.4984982 1.971108,1.355085 3.274044,2.880474 2.912254,3.406864 z m 44.607836,37.555359 c 0,0.963146 -8.777503,1.556352 -19.64834116,1.554722 -10.87083754,0.0016 -19.64834084,-0.593207 -19.64834084,-1.554722 0,-0.963147 8.7775033,-0.903662 19.64834084,-0.902847 10.86920816,-0.0033 19.64834116,-0.06112 19.64834116,0.902847 z m 10.01688,-39.053857 c -1.970293,1.354271 -3.860732,2.025702 -4.224153,1.498498 -0.360975,-0.52639 0.940331,-2.052592 2.912254,-3.406864 1.970294,-1.3542712 3.860732,-2.0248882 4.223339,-1.4984982 0.362605,0.528019 -0.941147,2.0525922 -2.91144,3.4068642 z");

people
  .append("g")
  .attr("class", "pattern")
  .attr("transform", "translate(5,42)")
  .each(function (d) {
    var superPattern = d3.superformula()
      .param("m", fashionScaleM(d.fashion))
      .param("n1", fashionScaleN1(d.fashion))
      .param("n2", fashionScaleN2(d.fashion))
      .param("n3", fashionScaleN3(d.fashion))
      .param("b", 1)
      .param("a", 1)
      .size(25);
      d3.select(this).selectAll("path.superpattern").data(d3.range(20))
      .enter()
      .append("path")
      .attr("transform", function (d, i) {
        var yPos = (Math.floor(i/5) * 15) + 3;
        var xPos = i%5;
        return "translate(" + (xPos * 8) + "," + (yPos) + ")"; })
      .attr("d", superPattern)
      .style("fill", industryScale(d.industry))
      .style("stroke", industryScale(d.industry))
      .style("stroke-width", 0.5)
      .style("stroke-opacity", 0.5);
  })

people
  .append("g")
  .attr("class", "face")
  .attr("transform", "scale(.3)")
  .call(face);

people.select("path.face")
  .style("fill", function (d) {console.log(d, d.exercise, exerciseScale, exerciseScale(d.exercise)); return exerciseScale(d.exercise)})
  .style("stroke", "none");

people.append("text")
  .attr("y", 65)
  .attr("x", 20)
  .style("text-anchor", "middle")
  .text(function (d) {return d.label})
  .style("stroke", "white")
  .style("stroke-width", "4px")
  .style("stroke-opacity", .85)

people.append("text")
  .attr("y", 65)
  .attr("x", 20)
  .style("text-anchor", "middle")
  .text(function (d) {return d.label})

</script>
  </footer>

</html>

https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js