xxxxxxxxxx<html lang="en"> <head> <title>Project 1</title> <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js" charset="utf-8"></script> <style type="text/css"> body { margin: 0; background-color: lightGray; font-family: Helvetica, Arial, sans-serif; } #container { width: 960px; height: 500px; margin-left: auto; margin-right: auto; padding: 5px; background-color: white; box-shadow: 3px 3px 5px 6px #ccc; } h1 { font-size: 24px; margin: 0; } p { font-size: 14px; margin: 15px 0 10px 0; } a:link { text-decoration: none; color: gray; } a:hover { text-decoration: underline; } a:visited { color: gray; } a:active { color: steelBlue; } svg { background-color: white; } g.bar text { font-size: 11px; font-weight: bold; text-anchor: end; opacity: 0; } g.bar:hover rect { fill: orange; } g.bar:hover text { opacity: 1; font-weith: normal; font-size: 9px; fill: blue; } .axis path, .axis line { fill: none; stroke: black; shape-rendering: crispEdges; } .axis text { font-family: sans-serif; font-size: 9px; } .y.axis path, .y.axis line { opacity: 0; } </style> </head> <body> <div id="container"> <h2>U.S. mass killings since 2006</h1> <p>The FBI defines mass killings as 4 or more victims, not including the killer. <strong>Source:</strong> <a href="https://www.usatoday.com/story/news/nation/2013/09/16/mass-killings-data-map/2820423/">USA Today, 2013</a></p> </div> <script type="text/javascript"> var w = 940; var h = 400; var padding = [ 0, 10, 20, 40 ]; //Top, right, bottom, left var widthScale = d3.scale.linear() .range([ 0, w - padding[1] - padding[3] ]); var heightScale = d3.scale.ordinal() .rangeRoundBands([ padding[0], h - padding[2] ], 0.1); var xAxis = d3.svg.axis() .scale(widthScale) .orient("bottom"); var yAxis = d3.svg.axis() .scale(heightScale) .orient("left"); // To be specific we append SVG to #container var svg = d3.select("#container") .append("svg") .attr("width", w) .attr("height", h);// https://www.usatoday.com/story/news/nation/2013/09/16/mass-killings-data-map/2820423/ d3.csv("mass-shootings.csv", function(data) { data.forEach(function(d) { d.victims = +d.victims; }); data = d3.nest() .key(function(d) { return d.state; }) .rollup(function(v) { return d3.sum(v, function(d) { return d.victims; }); }) .entries(data); // Note the map returns an object, not an array. //.map(data); data.sort(function(a, b){ if(b.values > a.values){ return 1; } else if(b.values === a.values) { return 0; } else { // b.values < a.values return -1; } }); widthScale.domain([ 0, d3.max(data, function(d) { return d.values; }) ]); heightScale.domain(data.map(function(d) { return d.key; } )); // Bind data to groups (not bars directly) var groups = svg.selectAll("g") .data(data) .enter() .append("g") .attr("class", "bar"); // Add a rect to each group var rects = groups.append("rect") .attr("x", padding[3]) .attr("y", function(d) { return heightScale(d.key); }) .attr("width", 0) .attr("height", heightScale.rangeBand()) .attr("fill", "steelblue"); // This invisble rect will overlay blue rectangles groups.append("rect") .attr("x", padding[3]) .attr("y", function(d) { return heightScale(d.key); }) .attr("width", widthScale(d3.max(data, function(d) { return d.values; }))) .attr("height", heightScale.rangeBand()) .style("opacity", 0); // Add a text element to each group groups.append("text") .attr("x", function(d) { return padding[3] + widthScale(d.values) - 3; }) .attr("y", function(d) { return heightScale(d.key) + 7; }) .text(function(d) { return d.values; }); rects.transition() .delay(function(d, i) { return i * 50; }) .duration(1000) .attr("width", function(d) { return widthScale(d.values); }); svg.append("g") .attr("class", "x axis") .attr("transform", "translate(" + padding[3] + "," + (h - padding[2]) + ")") .call(xAxis); svg.append("g") .attr("class", "y axis") .attr("transform", "translate(" + padding[3] + ",0)") .call(yAxis); }); </script> </body></html> https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js