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Edit File: bars_advanced_simple_interaction.js
/* ------------------------------------------------------------------------------ * * # D3.js - bars with simple interaction * * Demo d3.js bar chart setup with animated data source change * * ---------------------------------------------------------------------------- */ // Setup module // ------------------------------ var D3BarInteraction = function() { // // Setup module components // // Chart var _barInteraction = function() { if (typeof d3 == 'undefined') { console.warn('Warning - d3.min.js is not loaded.'); return; } // Main variables var element = document.getElementById('d3-simple-interaction'), height = 400; // Initialize chart only if element exsists in the DOM if(element) { // Basic setup // ------------------------------ // Define main variables var d3Container = d3.select(element), margin = {top: 5, right: 20, bottom: 20, left: 10}, width = d3Container.node().getBoundingClientRect().width - margin.left - margin.right, height = height - margin.top - margin.bottom - 5; // Demo data set var dataset = [40.5, 33.1, 31.6, 31.0, 29.9, 28.9, 25.2, 25.2, 24.8, 24.3, 24.0, 22.6, 20.5, 19.5, 19.0, 18.9, 18.8, 18.5, 18.4, 17.6, 17.1]; // Colors var bar_colors = d3.scale.category20(), bar_text_color = '#fff' // Construct scales // ------------------------------ // Horizontal var x = d3.scale.ordinal() .domain(d3.range(dataset.length)) .rangeRoundBands([0, width], 0.05); // Vertical var y = d3.scale.linear() .domain([0, d3.max(dataset)]) .range([0, height]); // Create axes // ------------------------------ // Horizontal var xAxis = d3.svg.axis() .scale(x) .orient("bottom"); // 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 + ")"); // Add tooltip // ------------------------------ // Create tooltip var tip = d3.tip() .attr('class', 'd3-tip') .offset([-10, 0]) .html(function(d) { return d }) // Initialize tooltip svg.call(tip); // // Append chart elements // // Append bars // ------------------------------ // Add bars var drawBars = svg.selectAll(".d3-bar") .data(dataset) .enter() .append("rect") .attr("class", "d3-bar") .attr("x", function(d, i) { return x(i) }) .attr("width", x.rangeBand()) .attr("height", 0) .attr("y", height) .attr("fill", function(d, i) { return bar_colors(i); }) .style("cursor", "pointer") .on('mouseover', tip.show) .on('mouseout', tip.hide) // Add bar transition drawBars.transition() .delay(200) .duration(1000) .attr("height", function(d) { return y(d) }) .attr("y", function(d) { return height - y(d) }) // Add text labels var drawLabels = svg.selectAll(".value-label") .data(dataset) .enter() .append("text") .attr("class", "value-label") .attr("x", function(d, i) { return x(i) + x.rangeBand() / 2 }) .attr("y", function(d) { return height - y(d) + 25; }) .style('opacity', 0) .style("text-anchor", "middle") .style("fill", bar_text_color) .text(function(d) {return d;}); // Add text label transition drawLabels.transition() .delay(1000) .duration(500) .style('opacity', 1); // Create axes // ------------------------------ // Horizontal var xAxis = d3.svg.axis() .scale(x) .orient("bottom"); // Change data sets // ------------------------------ d3.select(".toggle-dataset").on("change", function() { if(this.checked) { dataset = [8.4, 12.1, 25.5, 10.3, 11.7, 10.9, 13.3, 23.1, 15.4, 12.3, 17.8, 18.8, 14.7, 8.8, 11.2, 10.2, 17.1, 14.5, 11.9, 7.3, 7.4]; // Update all rects svg.selectAll("rect") .data(dataset) .transition() .delay(0) .duration(1000) .ease('cubic-in-out') .attr("y", function(d) { return height - y(d) }) .attr("height", function(d) { return y(d) }) .style("fill", bar_colors) // Update labels var drawNewlabels = svg.selectAll("text") .data(dataset) .attr("x", function(d, i) {return x(i) + x.rangeBand() / 2 }) .attr("y", function(d) {return height - y(d) + 25 }) .style('opacity', 0) .text(function(d) {return d;}); // Transition drawNewlabels.transition() .delay(1000) .duration(500) .style('opacity', 1) } else { dataset = [40.5, 33.1, 31.6, 31.0, 29.9, 28.9, 25.2, 25.2, 24.8, 24.3, 24.0, 22.6, 20.5, 19.5, 19.0, 18.9, 18.8, 18.5, 18.4, 17.6, 17.1]; // Update all rects svg.selectAll("rect") .data(dataset) .transition() .delay(0) .duration(1000) .ease('cubic-in-out') .attr("y", function(d) { return height - y(d) }) .attr("height", function(d) { return y(d) }) .style("fill", function(d, i) { return bar_colors(i); }); // Update labels var drawFirstlabels = svg.selectAll("text") .data(dataset) .attr("x", function(d, i) {return x(i) + x.rangeBand() / 2 }) .attr("y", function(d) {return height - y(d) + 25 }) .style('opacity', 0) .text(function(d) {return d;}); drawFirstlabels.transition() .delay(1000) .duration(500) .style('opacity', 1); } }); // Resize chart // ------------------------------ // Call function on window resize window.addEventListener('resize', resize); // Call function on sidebar width change var sidebarToggle = document.querySelector('.sidebar-control'); sidebarToggle && sidebarToggle.addEventListener('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], 0.05); // Horizontal axis svg.selectAll('.d3-axis-horizontal').call(xAxis); // Chart elements // ------------------------- // Bars svg.selectAll('.d3-bar').attr("x", function(d, i) { return x(i) }).attr("width", x.rangeBand()); // Text label svg.selectAll(".value-label").attr("x", function(d, i) { return x(i) + x.rangeBand() / 2 }); } } }; // // Return objects assigned to module // return { init: function() { _barInteraction(); } } }(); // Initialize module // ------------------------------ document.addEventListener('DOMContentLoaded', function() { D3BarInteraction.init(); });
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