Switch between stacked and grouped layouts using sequenced transitions! Animations preserve object constancy and allow the user to follow the data across views. Animation design by Heer and Robertson. Colors and data generation inspired by Byron and Wattenberg.
-
-
Save kardeiz/4346442 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; | |
| margin: auto; | |
| position: relative; | |
| width: 960px; | |
| } | |
| text { | |
| font: 10px sans-serif; | |
| } | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| form { | |
| position: absolute; | |
| right: 10px; | |
| top: 10px; | |
| } | |
| </style> | |
| <form> | |
| <label><input type="radio" name="mode" value="grouped"> Grouped</label> | |
| <label><input type="radio" name="mode" value="stacked" checked> Stacked</label> | |
| </form> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var n = 4, // number of layers | |
| m = 58, // number of samples per layer | |
| stack = d3.layout.stack(), | |
| layers = stack(d3.range(n).map(function() { return bumpLayer(m, .1); })), | |
| yGroupMax = d3.max(layers, function(layer) { return d3.max(layer, function(d) { return d.y; }); }), | |
| yStackMax = d3.max(layers, function(layer) { return d3.max(layer, function(d) { return d.y0 + d.y; }); }); | |
| console.log(layers); | |
| var margin = {top: 40, right: 10, bottom: 20, left: 10}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var x = d3.scale.ordinal() | |
| .domain(d3.range(m)) | |
| .rangeRoundBands([0, width], .08); | |
| var y = d3.scale.linear() | |
| .domain([0, yStackMax]) | |
| .range([height, 0]); | |
| var color = d3.scale.linear() | |
| .domain([0, n - 1]) | |
| .range(["#aad", "#556"]); | |
| var xAxis = d3.svg.axis() | |
| .scale(x) | |
| .tickSize(0) | |
| .tickPadding(6) | |
| .orient("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 layer = svg.selectAll(".layer") | |
| .data(layers) | |
| .enter().append("g") | |
| .attr("class", "layer") | |
| .style("fill", function(d, i) { return color(i); }); | |
| var rect = layer.selectAll("rect") | |
| .data(function(d) { return d; }) | |
| .enter().append("rect") | |
| .attr("x", function(d) { return x(d.x); }) | |
| .attr("y", height) | |
| .attr("width", x.rangeBand()) | |
| .attr("height", 0); | |
| rect.transition() | |
| .delay(function(d, i) { return i * 10; }) | |
| .attr("y", function(d) { return y(d.y0 + d.y); }) | |
| .attr("height", function(d) { return y(d.y0) - y(d.y0 + d.y); }); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis); | |
| d3.selectAll("input").on("change", function change() { | |
| if (this.value === "grouped") transitionGrouped(); | |
| else transitionStacked(); | |
| }); | |
| function transitionGrouped() { | |
| y.domain([0, yGroupMax]); | |
| rect.transition() | |
| .duration(500) | |
| .delay(function(d, i) { return i * 10; }) | |
| .attr("x", function(d, i, j) { console.log(d); return x(d.x) + x.rangeBand() / n * j; }) | |
| .attr("width", x.rangeBand() / n) | |
| .transition() | |
| .attr("y", function(d) { return y(d.y); }) | |
| .attr("height", function(d) { return height - y(d.y); }); | |
| } | |
| function transitionStacked() { | |
| y.domain([0, yStackMax]); | |
| rect.transition() | |
| .duration(500) | |
| .delay(function(d, i) { return i * 10; }) | |
| .attr("y", function(d) { return y(d.y0 + d.y); }) | |
| .attr("height", function(d) { return y(d.y0) - y(d.y0 + d.y); }) | |
| .transition() | |
| .attr("x", function(d) { return x(d.x); }) | |
| .attr("width", x.rangeBand()); | |
| } | |
| // Inspired by Lee Byron's test data generator. | |
| function bumpLayer(n, o) { | |
| function bump(a) { | |
| var x = 1 / (.1 + Math.random()), | |
| y = 2 * Math.random() - .5, | |
| z = 10 / (.1 + Math.random()); | |
| for (var i = 0; i < n; i++) { | |
| var w = (i / n - y) * z; | |
| a[i] += x * Math.exp(-w * w); | |
| } | |
| } | |
| var a = [], i; | |
| for (i = 0; i < n; ++i) a[i] = o + o * Math.random(); | |
| for (i = 0; i < 5; ++i) bump(a); | |
| return a.map(function(d, i) { return {x: i, y: Math.max(0, d)}; }); | |
| } | |
| </script> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment