This bar chart is implemented using d3.js and it uses TourPedia data. TourPedia contains information about accommodations, restaurants, points of interest and attractions of different places in Europe. As it is now, it provides information about Amsterdam, Barcelona, Berlin, Dubai, London, Paris, Rome and Tuscany. The bar chart is a horizontal chart and shows the amount of venues grouped by city and by category and the total sum of places for each location.
Last active
August 29, 2015 14:01
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OpeNER - Double Bar Chart
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| body { | |
| font: 12px sans-serif; | |
| } | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: lightgrey; | |
| shape-rendering: crispEdges; | |
| } | |
| .bar, .total_bar { | |
| shape-rendering: crispEdges; | |
| } | |
| .bar:hover { | |
| opacity: 0.7; | |
| } | |
| .x.axis path { | |
| display: none; | |
| } | |
| .total_bar { | |
| fill: #DDD; | |
| fill-opacity: 0.6; | |
| } |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>JS Bin</title> | |
| <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script> | |
| <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
| <link rel="stylesheet" type="text/css" href="index.css"> | |
| </head> | |
| <body> | |
| <script src='index.js'></script> | |
| </body> | |
| </html> |
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| var margin = {top: 20, right: 20, bottom: 30, left: 100}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var y0 = d3.scale.ordinal() | |
| .rangeRoundBands([height, 0], .1); | |
| var y1 = d3.scale.ordinal(); | |
| var x = d3.scale.linear() | |
| .range([0, width-100]); | |
| var color = d3.scale.ordinal() | |
| .range(["rgb(239, 142, 173)", "rgb(213, 161, 102)", "rgb(122, 186, 127)", "rgb(0, 189, 213)", "#DDD"]); | |
| var yAxis = d3.svg.axis() | |
| .scale(y0) | |
| .orient("left") | |
| .tickSize(0,0); | |
| var xAxis = d3.svg.axis() | |
| .scale(x) | |
| .orient("bottom") | |
| .tickSize(height) | |
| .tickFormat(d3.format(".2s")); | |
| 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 + ")"); | |
| var data = []; | |
| var url = 'http://tour-pedia.org/api/getPlacesStatistics'; | |
| d3.json(url, function(apidata) { | |
| var data = Object.keys(apidata).map(function(city_name){ | |
| return { | |
| name: city_name, | |
| categories: Object.keys(apidata[city_name]).map(function(cat_name){ | |
| return { | |
| name: cat_name, | |
| value: apidata[city_name][cat_name] | |
| } | |
| }) | |
| }; | |
| }); | |
| console.log(data); | |
| var categories =['accommodation','attraction','restaurant','poi']; | |
| y0.domain(data.map(function(d){ return d.name; })); | |
| y1.domain(categories).rangeRoundBands([0, y0.rangeBand()], 0.15); | |
| x.domain([0, d3.max(data, function(city) { | |
| return d3.sum(city.categories, function(d) { return d.value; }); | |
| })]); | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .call(yAxis); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .call(xAxis) | |
| .append("text") | |
| .attr("x", width) | |
| .attr("y", height+5) | |
| .attr("dy", ".71em") | |
| .style("text-anchor", "end") | |
| .text("# of Places"); | |
| var totals = svg.selectAll(".total_bar") | |
| .data(data, function(d){ return d.name; }) | |
| .enter().append("rect") | |
| .attr("class", "total_bar") | |
| .attr("height", y0.rangeBand()) | |
| .attr("x", 2) | |
| .attr("y", function(d) { return y0(d.name); }) | |
| .attr("width", 0); | |
| totals.transition() | |
| .duration(600) | |
| .ease("linear") | |
| .attr("width", function(city) { | |
| return x(d3.sum(city.categories, function(d) { return d.value; })); | |
| }); | |
| var zero=d3.format(".4s"); | |
| totals.append("title") | |
| .text(function(city){ | |
| return "Total: " + zero(d3.sum(city.categories, function(d) { return d.value; })) | |
| }) | |
| var cities = svg.selectAll(".city") | |
| .data(data, function(d){ return d.name; }) | |
| .enter().append("g") | |
| .attr("class", "city") | |
| .attr("transform", function(d) { return "translate(0," + y0(d.name) + ")"; }); | |
| var bars = cities.selectAll(".bar") | |
| .data(function(city) { return city.categories; }, function(d){ return d.name; }) | |
| .enter().append("rect") | |
| .attr("class", "bar") | |
| .attr("height", y1.rangeBand()) | |
| .attr("x", 2) | |
| .attr("y", function(d) { return y1(d.name); }) | |
| .attr("width", 0) | |
| .style("fill", function(d) { return color(d.name); }); | |
| bars.transition() | |
| .duration(600) | |
| .ease("linear") | |
| .attr("width", function(d) { return x(d.value)}); | |
| bars.append("title") | |
| .text(function(d){ | |
| return zero(d.value) | |
| }) | |
| var legend = svg.selectAll(".legend") | |
| .data(categories.concat(["total"])) | |
| .enter().append("g") | |
| .attr("class", "legend") | |
| .attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; }); | |
| legend.append("rect") | |
| .attr("x", width-100) | |
| .attr("width", 18) | |
| .attr("height", 18) | |
| .style("fill", color); | |
| legend.append("text") | |
| .attr("x", width - 70) | |
| .attr("y", 9) | |
| .attr("dy", ".35em") | |
| .style("text-anchor", "start") | |
| .text(function(d) { return d; }); | |
| }) |
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