/* ------------------------------------------------------------------------------ * * # D3.js - area chart with missing data * * Demo d3.js area chart setup with tooltip and missing data * * Version: 1.0 * Latest update: August 1, 2015 * * ---------------------------------------------------------------------------- */ $(function () { // Initialize chart areaMissing('#d3-missing-data', 400); // Chart setup function areaMissing(element, height) { // Basic setup // ------------------------------ // Define main variables var d3Container = d3.select(element), margin = {top: 5, right: 20, bottom: 20, left: 40}, width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right, height = height - margin.top - margin.bottom - 5; // Data set var data = d3.range(60).map(function(i) { return {x: i / 59, y: i % 5 ? (Math.sin(i / 3) + 2) / 4 : null}; }); // Construct scales // ------------------------------ // Horizontal var x = d3.scale.linear() .range([0, width]); // Vertical var y = d3.scale.linear() .range([height, 0]); // Create axes // ------------------------------ // Horizontal var xAxis = d3.svg.axis() .scale(x) .orient("bottom"); // Vertical var yAxis = d3.svg.axis() .scale(y) .orient("left"); // Add tooltip var tip = d3.tip() .attr('class', 'd3-tip') .offset([-10, 0]) .html(function(d) { return d.x; }); // Create chart // ------------------------------ // Add SVG element var container = d3Container.append("svg"); // Add SVG group var svg = container .datum(data) .attr("width", width + margin.left + margin.right) .attr("height", height + margin.top + margin.bottom) .append("g") .attr("transform", "translate(" + margin.left + "," + margin.top + ")") .call(tip); // Construct chart layout // ------------------------------ // Line var line = d3.svg.line() .defined(function(d) { return d.y != null; }) .x(function(d) { return x(d.x); }) .y(function(d) { return y(d.y); }); // Area var area = d3.svg.area() .defined(line.defined()) .x(line.x()) .y1(line.y()) .y0(y(0)); // // 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 svg.append("g") .attr("class", "d3-axis d3-axis-vertical d3-axis-strong") .call(yAxis); // Chart elements // ------------------------------ // Add area svg.append("path") .attr("class", "d3-area") .attr("d", area) .style("fill", "#81C784"); // Add line svg.append("path") .attr("class", "d3-line d3-line-medium") .attr("d", line) .style("stroke", "#43A047"); // Add dots svg.selectAll(".d3-dot") .data(data.filter(function(d) { return d.y; })) .enter() .append("circle") .attr("class", "d3-dot") .attr("cx", line.x()) .attr("cy", line.y()) .attr("r", 3) .style("fill", "#fff") .style("stroke", "#43A047") .style("stroke-width", 1.5) .on('mouseover', tip.show) .on('mouseout', tip.hide); // 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.range([0, width]); // Horizontal axis svg.selectAll('.d3-axis-horizontal').call(xAxis); // Chart elements // ------------------------- // Line path svg.selectAll('.d3-line').attr("d", line); // Area path svg.selectAll('.d3-area').attr("d", area); // Dots svg.selectAll('.d3-dot').attr("cx", line.x()); } } });