EcoEngine Scatterplot by syntagmatic

index.html

<!DOCTYPE html>
<meta charset="utf-8">
<style>

body {
  font: 10px sans-serif;
}

.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}

.dot {
  stroke: #222;
  fill-opacity: 0.8;
}

</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>

var margin = {top: 20, right: 50, bottom: 30, left: 124},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

var x = d3.time.scale();

var y = d3.scale.ordinal();

var color = d3.scale.ordinal()
  .range(["#e41a1c","#377eb8","#4daf4a","#984ea3","#ff7f00"]);

var xAxis = d3.svg.axis()
    .scale(x)
    .orient("bottom");

var yAxis = d3.svg.axis()
    .scale(y)
    .orient("left");

var svg = d3.select("body").append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

d3.json("data.json", function(error, data) {
  data.results.forEach(function(d) {
    d.begin_date = new Date(d.begin_date);
  });

  x.domain(d3.extent(data.results, function(d) { return d.begin_date; }))
    .range([0, width])

  y.domain(data.results.map(function(d) { return d.country; }))
    .rangePoints([height, 0])

  svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis)
    .append("text")
      .attr("class", "label")
      .attr("x", width)
      .attr("y", -6)
      .style("text-anchor", "end")
      .text("Date");

  svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)
    .append("text")
      .attr("class", "label")
      .attr("transform", "rotate(-90)")
      .attr("y", 6)
      .attr("dy", ".71em")
      .style("text-anchor", "end")
      .text("Country")

  svg.selectAll(".dot")
      .data(data.results)
    .enter().append("circle")
      .attr("class", "dot")
      .attr("r", 3)
      .attr("cx", function(d) { return x(d.begin_date); })
      .attr("cy", function(d) { return y(d.country); })
      .style("fill", function(d) { return color(d.clss); })
      .append("title")
      .text(function(d) { return d.scientific_name; });

  var legend = svg.selectAll(".legend")
      .data(color.domain())
    .enter().append("g")
      .attr("class", "legend")
      .attr("transform", function(d, i) { return "translate(45," + i * 20 + ")"; });

  legend.append("rect")
      .attr("x", width - 18)
      .attr("width", 18)
      .attr("height", 18)
      .style("fill", color);

  legend.append("text")
      .attr("x", width - 24)
      .attr("y", 9)
      .attr("dy", ".35em")
      .style("text-anchor", "end")
      .text(function(d) { return d ? d.replace("https://ecoengine.berkeley.edu/api/class/","").replace("/","") : "null"; });

});

</script>