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<!DOCTYPE html> |
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<meta charset="utf-8"> |
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<style> |
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body { |
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font: 10px sans-serif; |
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} |
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.axis path, |
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.axis line { |
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fill: none; |
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stroke: #000; |
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shape-rendering: crispEdges; |
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} |
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.bar { |
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fill: steelblue; |
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} |
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.x.axis path { |
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display: none; |
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} |
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.tooltip{ |
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text-anchor: middle; |
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font-family: sans-serif; |
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font-size: 10px; |
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font-weight: bold; |
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fill:black; |
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} |
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label { |
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position: absolute; |
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top: 222px; |
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right: 35px; |
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color: #D8D8D8; |
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} |
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</style> |
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<body> |
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<label><input type="checkbox"> Sort values</label> |
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<script src="http://d3js.org/d3.v3.min.js"></script> |
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<script> |
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var margin = {top: 20, right: 20, bottom: 30, left: 40}, |
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width = 960 - margin.left - margin.right, |
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height = 500 - margin.top - margin.bottom; |
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var x = d3.scale.ordinal() |
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.rangeRoundBands([0, width], .1); |
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var y = d3.scale.linear() |
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.rangeRound([height, 0]); |
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var color = d3.scale.ordinal() |
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.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]); |
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var xAxis = d3.svg.axis() |
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.scale(x) |
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.orient("bottom"); |
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var yAxis = d3.svg.axis() |
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.scale(y) |
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.orient("left") |
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.tickFormat(d3.format(".2s")); |
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var svg = d3.select("body").append("svg") |
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.attr("width", width + margin.left + margin.right) |
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.attr("height", height + margin.top + margin.bottom) |
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.append("g") |
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.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); |
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var active_link = "0"; //to control legend selections and hover |
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var legendClicked; //to control legend selections |
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var legendClassArray = []; //store legend classes to select bars in plotSingle() |
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var legendClassArray_orig = []; //orig (with spaces) |
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var sortDescending; //if true, bars are sorted by height in descending order |
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var restoreXFlag = false; //restore order of bars back to original |
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//disable sort checkbox |
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d3.select("label") |
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.select("input") |
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.property("disabled", true) |
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.property("checked", false); |
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d3.csv("state_data.csv", function(error, data) { |
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if (error) throw error; |
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color.domain(d3.keys(data[0]).filter(function(key) { return key !== "State"; })); |
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data.forEach(function(d) { |
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var mystate = d.State; //add to stock code |
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var y0 = 0; |
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//d.ages = color.domain().map(function(name) { return {name: name, y0: y0, y1: y0 += +d[name]}; }); |
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d.ages = color.domain().map(function(name) { |
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//return { mystate:mystate, name: name, y0: y0, y1: y0 += +d[name]}; }); |
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return { |
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mystate:mystate, |
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name: name, |
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y0: y0, |
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y1: y0 += +d[name], |
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value: d[name], |
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y_corrected: 0 |
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}; |
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}); |
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d.total = d.ages[d.ages.length - 1].y1; |
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}); |
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//Sort totals in descending order |
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data.sort(function(a, b) { return b.total - a.total; }); |
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x.domain(data.map(function(d) { return d.State; })); |
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y.domain([0, d3.max(data, function(d) { return d.total; })]); |
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svg.append("g") |
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.attr("class", "x axis") |
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.attr("transform", "translate(0," + height + ")") |
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.call(xAxis); |
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svg.append("g") |
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.attr("class", "y axis") |
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.call(yAxis) |
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.append("text") |
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.attr("transform", "rotate(-90)") |
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.attr("y", 6) |
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.attr("dy", ".71em") |
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.style("text-anchor", "end"); |
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//.text("Population"); |
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var state = svg.selectAll(".state") |
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.data(data) |
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.enter().append("g") |
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.attr("class", "g") |
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.attr("transform", function(d) { return "translate(" + "0" + ",0)"; }); |
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//.attr("transform", function(d) { return "translate(" + x(d.State) + ",0)"; }) |
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height_diff = 0; //height discrepancy when calculating h based on data vs y(d.y0) - y(d.y1) |
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state.selectAll("rect") |
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.data(function(d) { |
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return d.ages; |
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}) |
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.enter().append("rect") |
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.attr("width", x.rangeBand()) |
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.attr("y", function(d) { |
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height_diff = height_diff + y(d.y0) - y(d.y1) - (y(0) - y(d.value)); |
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y_corrected = y(d.y1) + height_diff; |
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d.y_corrected = y_corrected //store in d for later use in restorePlot() |
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if (d.name === "65 Years and Over") height_diff = 0; //reset for next d.mystate |
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return y_corrected; |
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// return y(d.y1); //orig, but not accurate |
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}) |
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.attr("x",function(d) { //add to stock code |
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return x(d.mystate) |
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}) |
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.attr("height", function(d) { |
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//return y(d.y0) - y(d.y1); //heights calculated based on stacked values (inaccurate) |
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return y(0) - y(d.value); //calculate height directly from value in csv file |
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}) |
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.attr("class", function(d) { |
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classLabel = d.name.replace(/\s/g, ''); //remove spaces |
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return "bars class" + classLabel; |
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}) |
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.style("fill", function(d) { return color(d.name); }); |
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state.selectAll("rect") |
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.on("mouseover", function(d){ |
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var delta = d.y1 - d.y0; |
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var xPos = parseFloat(d3.select(this).attr("x")); |
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var yPos = parseFloat(d3.select(this).attr("y")); |
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var height = parseFloat(d3.select(this).attr("height")) |
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d3.select(this).attr("stroke","blue").attr("stroke-width",0.8); |
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svg.append("text") |
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.attr("x",xPos) |
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.attr("y",yPos +height/2) |
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.attr("class","tooltip") |
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.text(d.name +": "+ delta); |
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}) |
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.on("mouseout",function(){ |
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svg.select(".tooltip").remove(); |
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d3.select(this).attr("stroke","pink").attr("stroke-width",0.2); |
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}) |
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var legend = svg.selectAll(".legend") |
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.data(color.domain().slice().reverse()) |
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.enter().append("g") |
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.attr("class", function (d) { |
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legendClassArray.push(d.replace(/\s/g, '')); //remove spaces |
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legendClassArray_orig.push(d); //remove spaces |
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return "legend"; |
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}) |
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.attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; }); |
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//reverse order to match order in which bars are stacked |
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legendClassArray = legendClassArray.reverse(); |
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legendClassArray_orig = legendClassArray_orig.reverse(); |
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legend.append("rect") |
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.attr("x", width - 18) |
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.attr("width", 18) |
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.attr("height", 18) |
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.style("fill", color) |
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.attr("id", function (d, i) { |
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return "id" + d.replace(/\s/g, ''); |
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}) |
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.on("mouseover",function(){ |
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if (active_link === "0") d3.select(this).style("cursor", "pointer"); |
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else { |
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if (active_link.split("class").pop() === this.id.split("id").pop()) { |
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d3.select(this).style("cursor", "pointer"); |
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} else d3.select(this).style("cursor", "auto"); |
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} |
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}) |
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.on("click",function(d){ |
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if (active_link === "0") { //nothing selected, turn on this selection |
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d3.select(this) |
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.style("stroke", "black") |
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.style("stroke-width", 2); |
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active_link = this.id.split("id").pop(); |
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plotSingle(this); |
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//gray out the others |
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for (i = 0; i < legendClassArray.length; i++) { |
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if (legendClassArray[i] != active_link) { |
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d3.select("#id" + legendClassArray[i]) |
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.style("opacity", 0.5); |
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} else sortBy = i; //save index for sorting in change() |
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} |
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//enable sort checkbox |
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d3.select("label").select("input").property("disabled", false) |
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d3.select("label").style("color", "black") |
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//sort the bars if checkbox is clicked |
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d3.select("input").on("change", change); |
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} else { //deactivate |
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if (active_link === this.id.split("id").pop()) {//active square selected; turn it OFF |
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d3.select(this) |
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.style("stroke", "none"); |
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//restore remaining boxes to normal opacity |
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for (i = 0; i < legendClassArray.length; i++) { |
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d3.select("#id" + legendClassArray[i]) |
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.style("opacity", 1); |
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} |
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if (d3.select("label").select("input").property("checked")) { |
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restoreXFlag = true; |
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} |
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//disable sort checkbox |
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d3.select("label") |
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.style("color", "#D8D8D8") |
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.select("input") |
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.property("disabled", true) |
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.property("checked", false); |
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//sort bars back to original positions if necessary |
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change(); |
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//y translate selected category bars back to original y posn |
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restorePlot(d); |
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active_link = "0"; //reset |
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} |
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} //end active_link check |
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}); |
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legend.append("text") |
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.attr("x", width - 24) |
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.attr("y", 9) |
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.attr("dy", ".35em") |
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.style("text-anchor", "end") |
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.text(function(d) { return d; }); |
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// restore graph after a single selection |
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function restorePlot(d) { |
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//restore graph after a single selection |
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d3.selectAll(".bars:not(.class" + class_keep + ")") |
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.transition() |
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.duration(1000) |
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.delay(function() { |
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if (restoreXFlag) return 3000; |
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else return 750; |
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}) |
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.attr("width", x.rangeBand()) //restore bar width |
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.style("opacity", 1); |
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//translate bars back up to original y-posn |
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d3.selectAll(".class" + class_keep) |
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.attr("x", function(d) { return x(d.mystate); }) |
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.transition() |
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.duration(1000) |
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.delay(function () { |
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if (restoreXFlag) return 2000; //bars have to be restored to orig posn |
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else return 0; |
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}) |
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.attr("y", function(d) { |
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//return y(d.y1); //not exactly correct since not based on raw data value |
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return d.y_corrected; |
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}); |
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//reset |
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restoreXFlag = false; |
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} |
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// plot only a single legend selection |
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function plotSingle(d) { |
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class_keep = d.id.split("id").pop(); |
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idx = legendClassArray.indexOf(class_keep); |
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//erase all but selected bars by setting opacity to 0 |
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d3.selectAll(".bars:not(.class" + class_keep + ")") |
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.transition() |
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.duration(1000) |
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.attr("width", 0) // use because svg has no zindex to hide bars so can't select visible bar underneath |
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.style("opacity", 0); |
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//lower the bars to start on x-axis |
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state.selectAll("rect").forEach(function (d, i) { |
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//get height and y posn of base bar and selected bar |
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h_keep = d3.select(d[idx]).attr("height"); |
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y_keep = d3.select(d[idx]).attr("y"); |
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h_base = d3.select(d[0]).attr("height"); |
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y_base = d3.select(d[0]).attr("y"); |
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h_shift = h_keep - h_base; |
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y_new = y_base - h_shift; |
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//reposition selected bars |
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d3.select(d[idx]) |
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.transition() |
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.ease("bounce") |
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.duration(1000) |
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.delay(750) |
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.attr("y", y_new); |
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}) |
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} |
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//adapted change() fn in http://bl.ocks.org/mbostock/3885705 |
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function change() { |
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if (this.checked) sortDescending = true; |
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else sortDescending = false; |
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colName = legendClassArray_orig[sortBy]; |
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var x0 = x.domain(data.sort(sortDescending |
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? function(a, b) { return b[colName] - a[colName]; } |
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: function(a, b) { return b.total - a.total; }) |
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.map(function(d,i) { return d.State; })) |
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.copy(); |
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state.selectAll(".class" + active_link) |
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.sort(function(a, b) { |
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return x0(a.mystate) - x0(b.mystate); |
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}); |
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var transition = svg.transition().duration(750), |
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delay = function(d, i) { return i * 20; }; |
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//sort bars |
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transition.selectAll(".class" + active_link) |
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.delay(delay) |
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.attr("x", function(d) { |
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return x0(d.mystate); |
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}); |
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//sort x-labels accordingly |
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transition.select(".x.axis") |
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.call(xAxis) |
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.selectAll("g") |
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.delay(delay); |
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transition.select(".x.axis") |
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.call(xAxis) |
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.selectAll("g") |
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.delay(delay); |
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} |
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}); |
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</script> |
