xxxxxxxxxx<html lang="en"> <head> <meta charset="utf-8"> <title>Conditional Styling</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; } circle:hover { fill: orange; } path { stroke: gray; stroke-width: 0.5; } g.highlight path { stroke: steelblue; stroke-width: 2; } .axis path, .axis line { fill: none; stroke: black; stroke-width: 1; shape-rendering: crispEdges; } .axis text { font-family: sans-serif; font-size: 11px; } </style> </head> <body> <h1>A sea of accidents</h1> <p>Number of accidents in the Baltic Sea (2004-2013) Source: <a href="https://www.helcom.fi">HELCOM</a></p> <script type="text/javascript"> //Dimensions and padding var w = 700; var h = 600; var padding = [ 20, 10, 50, 100 ]; //Top, right, bottom, left //date formatting var dateFormat = d3.time.format("%Y"); var xScale = d3.time.scale() .range([ padding[3], w - padding[1] - padding[3] ]); var yScale = d3.scale.linear() .range([ padding[0], h - padding[2] ]); //axis 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"); //line generator var line = d3.svg.line() .x(function(d) { return xScale(dateFormat.parse(d.year)); }) .y(function(d) { return yScale(+d.amount); }); //create svg image var svg = d3.select("body") .append("svg") .attr("width", w) .attr("height", h); //load data d3.csv("NumberAccidentsYear.csv", function(data) { var years = ["2004","2005","2006","2007","2008","2009","2010","2011","2012","2013"]; //new empty array for the restructured data var dataset = []; //loop for each row of data for (var i = 0; i < data.length; i++) { //console.log(data.length) //create new object with this country's name and empty array dataset[i] = { country: data[i].Country, accidents: [] }; //loop through all the years for (var j = 0; j < years.length; j++) { //console.log(years.length) //if value is not empty if (data[i][years[j]]) { //add a new object to the accident array for this country dataset[i].accidents.push({ year: years[j], amount: data[i][years[j]] }); } } } // console.log(data); console.log(dataset); //set scales 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.accidents, function(d) { return +d.amount; }); }), 0 ]); //make group for each country var groups = svg.selectAll("g") .data(dataset) .enter() .append("g") .classed("highlight", function(d) { if (d.country == "Sweden" || d.country == "Denmark") { return true; } else { return false; } }); //append a title with country name (for easy tooltip) groups.append("title") .text(function(d) { return d.country; }); //within each group, create a new line/path, //binding just the accidents data to each one groups.selectAll("path") .data(function(d) { return [ d.accidents ]; }) .enter() .append("path") .attr("class", "line") .attr("d", line) .attr("fill", "none") .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); }); </script> </body></html> Modified http://d3js.org/d3.v3.js to a secure url
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