Cambridge Development by Year and Neighborhood

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8">
		<title>Cambridge Yearly Development by Neighborhood</title>
		<script type="text/javascript" src="https://d3js.org/d3.v3.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;
			}

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

path:hover {
				stroke: orange;
				stroke-width: 4;
			}

</style>
	</head>
	<body>

<h1>Cambridge Yearly Development by Neighborhood</h1>

<p>Number of residential units built in Cambridge since 1977, by neighborhood. 2015 numbers include all projected
		future units.</p>
		<p>Sources: <a href="https://data.cambridgema.gov/Planning/Development-Log-Current-Edition/wjwg-93qh">Current</a>
	and <a href="https://data.cambridgema.gov/Planning/Development-Log-Historical-Projects/a5ud-8kjv">historical</a> data
	from <a href="https://data.cambridgema.gov">Cambridge Open Data Portal</a>.

//Dimensions and padding
			var w = 800;
			var h = 600;
			var padding = [ 20, 10, 50, 100 ];  //Top, right, bottom, left

//Set up scales
			var xScale = d3.scale.linear()
								.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(d3.format());

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

//Configure line generator
			var line = d3.svg.line()
				.x(function(d) {
					return xScale(d.Year);
				})
				.y(function(d) {
					return yScale(d.Units);
				});

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

var years = ["1997", "1998", "1999", "2000", "2001", "2002", "2003", "2004", "2005", "2006", "2007", "2008", "2009", "2010", '2011', '2012', '2013', '2014', '2015'];

//Load data
			d3.json("Development_Log_Summary2.json", function(data) {
				//Uncomment to log the original data to the console
				console.log(data);

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

yScale.domain([ 1500,
					//d3.max(data, 
					// 	function(d) {
					// 	return d3.max(d.data, function(dd) {
					// 		return +dd.Units;
					// 	});
					// }),
					0
				]);

//Make a group for each neighborhood
				var groups = svg.selectAll("g")
					.data(data)
					.enter()
					.append("g")
					.attr('class', 'lineg');

//Append a title with the name (so we get easy tooltips)
				groups.append("title")
					.text(function(d) {
						return d.Neighborhood[0];
					});

//Within each group, create a new line/path,
				//binding just the units data to each one
				groups.selectAll("path")
					.data(function(d) {
						return [ d.data ];
					})
					.enter()
					.append("path")
					.attr("class", "line")
					.attr("d", line)
					.attr("fill", "none")
					.attr("stroke", "steelblue")
					.attr("stroke-width", 3);

// Set up a mouseover to sort the groups and show/hide the E Cambridge callout
				groups.on("mouseover", function(selected) {
			        d3.selectAll('.lineg').sort(function(a, b) {
			          if (a.Neighborhood[0] === selected.Neighborhood[0]) {
			            return 1;
			          } else {
			            if (b.Neighborhood[0] === selected.Neighborhood[0]) {
			              return -1;
			            } else {
			              return 0;
			            }
			          }
			        });
			        d3.select('.callout')
			        	.attr('visibility', selected.Neighborhood[0]=='East Cambridge' ?
			        		 'visible' : 'hidden');
			      });

groups.on('mouseout', function() {d3.select('.callout').attr('visibility', 'hidden')});

// Add a text callout for East Cambridge 2015
				svg.append('text')
					.attr({
						x: xScale(2013.5),
						y: yScale(1500),
						'text-anchor': 'end',
						fill: 'orange',
						transform: "rotate(-86.5 "+ xScale(2013.5)+ ","+ yScale(1500)+ ")",
						visibility: 'hidden',
						'class': 'callout'
					})
					.text('East Cambridge 2015 - 3411 units -->');

//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);

});
			//End data load function

</script>

</body>
</html>

Modified http://d3js.org/d3.v3.js to a secure url

https://d3js.org/d3.v3.js