Iconclass depth 1 codes, over time

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	<head>
		<meta charset="utf-8">
		<title>AIDS poster ICONCLASS</title>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
		<style type="text/css">
			
			body {
				background-color: white;
				font-family: Helvetica, Arial, sans-serif;
			}

h1 {
				font-size: 24px;
				margin: 0;
			}

p {
				font-size: 14px;
				margin: 10px 0 0 0;
			}

svg {
				background-color: white;
			}

circle:hover {
				fill: orange;
			}
			
			.axis path,
			.axis line {
				fill: none;
				stroke: black;
				shape-rendering: crispEdges;
			}
			
			.axis text {
				font-family: sans-serif;
				font-size: 11px;
			}

.legend {font-size: 10px;}
            
		</style>
	</head>
	<body>

<h1>Iconclass depth 1 codes, over time</h1>

<p></p>

//Dimensions and padding
			var w = 880;
			var h = 450;
			var padding = [ 20, 10, 50, 100 ];  //Top, right, bottom, left

//Set up date formatting and years
			var dateFormat = d3.time.format("%Y");

//Set up scales
			var xScale = d3.time.scale()
								.range([ padding[3], w - padding[1] - padding[3] ]);
			
			var yScale = d3.scale.linear()
								.range([ padding[0], h - padding[2] ]);

//Configure axis generators
			var xAxis = d3.svg.axis()
							.scale(xScale)
							.orient("bottom")
							.ticks(15)
							.tickFormat(function(d) {
								return dateFormat(d);
							});

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

var legend = {
        0 : {label:"Abstract", color:'rgb(255,255,255)'},
        1 : {label:"Religion", color:'rgb(225,223,85)' },
		2 : {label:"Nature", color:'rgb(164,231,15)' },
		3 : {label:"Humans", color:'rgb(15,197,149)' },
		4 : {label:"Culture", color:'rgb(133,95,227)' },
		5 : {label:"Ideas", color:'rgb(127,127,127)' },
		6 : {label:"History", color:'rgb(0,0,0)' },
		7 : {label:"Bible", color:'rgb(224,171,0)'} ,
		8 : {label:"Literature", color:'rgb(128,98,0)' },
		9 : {label:"Mythology", color:'rgb(113,88,143)' }
    }
	
    var legendColor = function(n){
			return +n < 10 ? legend[n].color : 'rgb(0,0,0)' ;
		}

//Configure line generator
			var line = d3.svg.line()
				.x(function(d) {
					return xScale(dateFormat.parse(d.year));
				})
				.y(function(d) {
					return yScale(+d.value);
				});

//Create the empty SVG image
			var svg = d3.select("body")
						.append("svg")
						.attr("width", w)
						.attr("height", h);

//Load data
			d3.csv("d3_ic_pivot_d1-year.csv", function(data) {

var years = ["1983", "1984", "1985", "1986", "1987", "1988", "1989", "1990", "1991", "1992", "1993", "1994", "1995", "1996", "1997", "1998", "1999", "2000", "2001", "2002", "2003", "2004", "2005", "2006", "2007", "2008", "2009", "2010", "2011", "2012"];

//Create a new, empty array to hold our restructured dataset
				var dataset = [];

//Loop once for each row in data
				for (var i = 0; i < data.length; i++) {

//Create new object with this ic_d1 name and empty array
					dataset[i] = {
						d1: data[i].ic_d1,
						count: []
					};

//Loop through all the years
					for (var j = 0; j < years.length; j++) {

// If value is not empty
						if (data[i][years[j]]) {
							//Add a new object to the count data array
							//for this ic_d1
							dataset[i].count.push({
								year: years[j],
								value: data[i][years[j]]
							});
						}

}

}
				
				//Set scale domains
				xScale.domain([ 
					d3.min(years, function(d) {
						return dateFormat.parse(d);
					}),
					d3.max(years, function(d) {
						return dateFormat.parse(d);
					})
				]);

yScale.domain([ 
					d3.max(dataset, function(d) {
						return d3.max(d.count, function(d) {
							return +d.value;
						});
					}),
					0
				]);

//Make a group for each ic_d1
				var groups = svg.selectAll("g")
					.data(dataset)
					.enter()
					.append("g");

//Append a title with the ic_d1 name (so we get easy tooltips)
				groups.append("title")
					.text(function(d) {
						return d.d1;
					});

//Within each group, create a new line/path,
				//binding just the emissions data to each one
				groups.selectAll("path")
					.data(function(d) {
						return [ d.count ];
					})
					.enter()
					.append("path")
					.attr("class", "line")
					.attr("d", line)
					.attr("fill", "none")
					.attr("stroke", function(d){
                        return legendColor(this.parentElement.childNodes[0].innerHTML)
                        })
					.attr("stroke-width", 2);

//Axes
				svg.append("g")
					.attr("class", "x axis")
					.attr("transform", "translate(0," + (h - padding[2]) + ")")
					.call(xAxis);

svg.append("g")
					.attr("class", "y axis")
					.attr("transform", "translate(" + (padding[3]) + ",0)")
					.call(yAxis);

var lgnd = svg.append("g")
        .attr("class","legend")
        .attr("transform","translate(700,50)")
        for (i=0; i < 10; i++) {
            lgnd.append("circle")
            .attr("fill", legendColor(i))
            .attr("r",6)
            .attr("cx",0)
            .attr("cy",i*20 - 4)
            .attr("opacity",0.6)
            .attr("stroke","#000")
            .attr("stroke-width", i == 0 ? 1 : 0);
            lgnd.append("text")
            .attr("x",12)
            .attr("y",i*20)
            .text(i + " : " + legend[i].label);
        }
                        
			});

</script>

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