Another updating joyplot, this one with labels and an axis and some more reasonable design decisions. See also Joyplot Update Pattern.
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September 8, 2017 04:33
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Joyplot Update Pattern II
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| license: gpl-3.0 |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <style> | |
| body { | |
| margin: 0; | |
| font-family: "Helvetica Neue", sans-serif; | |
| } | |
| .area { | |
| fill: steelblue; | |
| stroke: #fff; | |
| } | |
| .area:nth-child(odd){ | |
| fill: lightskyblue; | |
| } | |
| .line { | |
| fill: #fff; | |
| } | |
| .baseline { | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .baseline:last-of-type { | |
| display: none; | |
| } | |
| .line-label { | |
| text-anchor: end; | |
| font-size: .8em; | |
| } | |
| .line-label:nth-child(odd){ | |
| fill: #888; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script src="https://unpkg.com/[email protected]/lib/jeezy.min.js"></script> | |
| <script> | |
| var alpha = "Annie,Bob,Christina,Dylan,Elizabeth,Fred,Gertrude,Isaiah,Jennifer".split(","); | |
| var margin = {top: 50, left: 75, bottom: 50, right: 10}, width = window.innerWidth - margin.right - margin.left, height = window.innerHeight - margin.top - margin.bottom; | |
| 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 y_wrapper = d3.scaleBand() | |
| .rangeRound([0, height]) | |
| .domain(alpha); | |
| var y = d3.scaleLinear() | |
| .range([y_wrapper.bandwidth(), 0]) | |
| .domain([0, 100]); | |
| var x = d3.scaleLinear() | |
| .range([0, width]) | |
| .domain([0, 100]); | |
| var area = d3.area() | |
| .x(function(d){ return x(d.day); }) | |
| .y1(function(d) { return y(d.value * 2); }) | |
| .y0(y(0)) | |
| .curve(d3.curveBasis); | |
| svg.append("g") | |
| .attr("class", "axis x") | |
| .attr("transform", "translate(0, " + (height - 2) + ")") | |
| .call(d3.axisBottom(x)) | |
| drawChart(makeData()); | |
| d3.interval(function(){drawChart(makeData())}, 1000); | |
| function drawChart(data){ | |
| // labels | |
| svg.selectAll(".line-label") | |
| .data(data, function(d){ return d.id; }) | |
| .enter().append("text") | |
| .attr("class", "line-label") | |
| .attr("x", -5) | |
| .attr("y", function(d) { return y_wrapper(d.id) + y_wrapper.bandwidth() - 3; }) | |
| .text(function(d){ return d.id; }); | |
| // baselines | |
| svg.selectAll(".baseline") | |
| .data(data, function(d){ return d.id; }) | |
| .enter().append("line") | |
| .attr("class", "baseline") | |
| .attr("x1", 0) | |
| .attr("x2", width) | |
| .attr("y1", function(d) { return y_wrapper(d.id) + y_wrapper.bandwidth(); }) | |
| .attr("y2", function(d) { return y_wrapper(d.id) + y_wrapper.bandwidth(); }); | |
| // JOIN | |
| var area_path = svg.selectAll(".area") | |
| .data(data, function(d){ return d.id; }); | |
| // UDATE | |
| area_path | |
| .transition() | |
| .attr("d", function(d){ return area(d.data); }); | |
| // ENTER | |
| area_path.enter().append("path") | |
| .attr("class", "area") | |
| .attr("transform", function(d) { return "translate(0, " + (y_wrapper(d.id) - 1.5) + ")"; }) | |
| .attr("d", function(d){ return area(d.data); }); | |
| } | |
| function makeData(){ | |
| return alpha.map(function(letter){ | |
| var arr = []; | |
| for (var i = 0; i <= 100; i++){ | |
| arr.push({day: i, value: jz.num.randBetween(10, 90)}) | |
| } | |
| return { | |
| id: letter, | |
| data: arr | |
| } | |
| }); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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