/* ------------------------------------------------------------------------------ * * # D3.js - vertical bar chart * * Demo d3.js vertical bar chart setup with .tsv data source * * Version: 1.0 * Latest update: August 1, 2015 * * ---------------------------------------------------------------------------- */ $(function () { // Initialize chart barVertical('#d3-bar-vertical', 400); // Chart setup function barVertical(element, height) { // Basic setup // ------------------------------ // Define main variables var d3Container = d3.select(element), margin = {top: 5, right: 10, bottom: 20, left: 40}, width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right, height = height - margin.top - margin.bottom - 5; // Construct scales // ------------------------------ // Horizontal var x = d3.scale.ordinal() .rangeRoundBands([0, width], .1, .5); // Vertical var y = d3.scale.linear() .range([height, 0]); // Color var color = d3.scale.category20c(); // Create axes // ------------------------------ // Horizontal var xAxis = d3.svg.axis() .scale(x) .orient("bottom"); // Vertical var yAxis = d3.svg.axis() .scale(y) .orient("left") .ticks(10, "%"); // Create chart // ------------------------------ // Add SVG element var container = d3Container.append("svg"); // Add SVG group var svg = container .attr("width", width + margin.left + margin.right) .attr("height", height + margin.top + margin.bottom) .append("g") .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); // Load data // ------------------------------ d3.tsv("assets/demo_data/d3/bars/bars_basic.tsv", function(error, data) { // Pull out values data.forEach(function(d) { d.frequency = +d.frequency; }); // Set input domains // ------------------------------ // Horizontal x.domain(data.map(function(d) { return d.letter; })); // Vertical y.domain([0, d3.max(data, function(d) { return d.frequency; })]); // // Append chart elements // // Append axes // ------------------------------ // Horizontal svg.append("g") .attr("class", "d3-axis d3-axis-horizontal d3-axis-strong") .attr("transform", "translate(0," + height + ")") .call(xAxis); // Vertical var verticalAxis = svg.append("g") .attr("class", "d3-axis d3-axis-vertical d3-axis-strong") .call(yAxis); // Add text label verticalAxis.append("text") .attr("transform", "rotate(-90)") .attr("y", 10) .attr("dy", ".71em") .style("text-anchor", "end") .style("fill", "#999") .style("font-size", 12) .text("Frequency"); // Add bars svg.selectAll(".d3-bar") .data(data) .enter() .append("rect") .attr("class", "d3-bar") .attr("x", function(d) { return x(d.letter); }) .attr("width", x.rangeBand()) .attr("y", function(d) { return y(d.frequency); }) .attr("height", function(d) { return height - y(d.frequency); }) .style("fill", function(d) { return color(d.letter); }); }); // Resize chart // ------------------------------ // Call function on window resize $(window).on('resize', resize); // Call function on sidebar width change $('.sidebar-control').on('click', resize); // Resize function // // Since D3 doesn't support SVG resize by default, // we need to manually specify parts of the graph that need to // be updated on window resize function resize() { // Layout variables width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right; // Layout // ------------------------- // Main svg width container.attr("width", width + margin.left + margin.right); // Width of appended group svg.attr("width", width + margin.left + margin.right); // Axes // ------------------------- // Horizontal range x.rangeRoundBands([0, width], .1, .5); // Horizontal axis svg.selectAll('.d3-axis-horizontal').call(xAxis); // Chart elements // ------------------------- // Line path svg.selectAll('.d3-bar').attr("x", function(d) { return x(d.letter); }).attr("width", x.rangeBand()); } } });