Authorea

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

body {
  font: 10px sans-serif;
}

.bar rect {
  fill: #bbb;
  shape-rendering: crispEdges;
}

.bar text {
  fill: #bbb;
}

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

.clicked { 
	fill: #888;
}

.not-clicked {
	fill: #bbb;
}

</style>
<body>
<script src="http://d3js.org/d3.v2.min.js?2.10.0"></script>
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<script src="js/util.js"></script>
<script>

// Generate an Irwin–Hall distribution of 10 random variables.
var values = d3.range(1000).map(d3.random.irwinHall(10));

// A formatter for counts.
var formatCount = d3.format(",.0f");

var margin = {top: 10, right: 30, bottom: 30, left: 30},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

var animals = ['cat', 'cat', 'dog', 'mouse','cat', 'cat', 'dog', 'mouse','cat', 'cat', 'dog', 'mouse','dog', 'mouse','cat', 'cat','dog', 'mouse','cat', 'cat']
var unq_animals = animals.unique();
var scale = d3.scale.ordinal()
			  .domain(unq_animals)
			  .range(d3.range(0, unq_animals.length));
var inv_scale = d3.scale.ordinal()
			  .domain(d3.range(0, unq_animals.length))
			  .range(unq_animals);

var animal_values = [];
animals.forEach(function(d) { animal_values.push( scale(d)) })

console.log(scale('cat'));
console.log(inv_scale(2));

var x = d3.scale.linear()
    .domain([0, 3])
    .range([0, width]);

// Generate a histogram using twenty uniformly-spaced bins.
var data = d3.layout.histogram()
    .bins(x.ticks(3))
    (animal_values);

var y = d3.scale.linear()
    .domain([0, d3.max(data, function(d) { return d.y; })])
    .range([height, 0]);

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

var mouse_is_over_bar = false;

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.select("body").on("click", function(e) {
        if (mouse_is_over_bar == false) {
            bar.attr("class", "not-clicked");
        }
    });

var bar = svg.selectAll(".bar")
    .data(data)
    .enter().append("g")
    .attr("class", "bar")
    .attr("transform", function(d) { return "translate(" + x(d.x) + "," + y(d.y) + ")"; })
	.on("click", function() {
		if ($(this).attr("class") == "clicked") {
			$(this).attr("class", "not-clicked");
		} else { 
		 	$(this).attr("class", "clicked");
		}
	});

bar.append("rect")
    .attr("x", 1)
    .attr("width", x(data[0].dx) - 1)
    .attr("height", function(d) { return height - y(d.y); })
	.on("mouseover", function(e) {
	    mouse_is_over_bar = true;
	})
	.on("mouseout", function(e) {
	    mouse_is_over_bar = false;
	});

svg.append("g")
    .attr("class", "x axis")
    .attr("transform", "translate(0," + height + ")")
    .call(xAxis);

svg.append("text")
    .attr("class", "x label")
    .attr("text-anchor", "center")
    .attr("x", width-470)
    .attr("y", height+30)
    .text("ANIMALS");

</script>