| license: gpl-3.0 |
An attempt to replicate Mike's General Update Pattern, III with a pack layout (bubble chart). The update has four parts: (1) Join, (2) Exit, (3) Update, (4) Enter.
See also: Force Update Pattern, Voronoi Update Pattern II, Voronoi Update Pattern, and Modifying a Force Layout
forked from HarryStevens's block: Bubble Update Pattern
| <html> | |
| <head> | |
| <style> | |
| body { | |
| margin: 0; | |
| font-family: "Helvetica", sans-serif; | |
| } | |
| text { | |
| text-anchor: middle; | |
| fill: #fff; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script> | |
| var alphabet = "abcdefghijklmnopqrstuvwxyz".split(""); | |
| var width = window.innerWidth, height = window.innerHeight; | |
| var svg = d3.select("body").append("svg").attr("width", width).attr("height", height); | |
| var pack = d3.pack() | |
| .size([width, height]) | |
| .padding(1.5); | |
| redraw(randomizeData()); | |
| d3.interval(function(){ | |
| redraw(randomizeData()); | |
| }, 1500); | |
| function redraw(classes){ | |
| // transition | |
| var t = d3.transition() | |
| .duration(750); | |
| // hierarchy | |
| var h = d3.hierarchy({children: classes}) | |
| .sum(function(d) { return d.size; }) | |
| //JOIN | |
| var circle = svg.selectAll("circle") | |
| .data(pack(h).leaves(), function(d){ return d.data.name; }); | |
| var text = svg.selectAll("text") | |
| .data(pack(h).leaves(), function(d){ return d.data.name; }); | |
| //EXIT | |
| circle.exit() | |
| .style("fill", "#b26745") | |
| .transition(t) | |
| .attr("r", 1e-6) | |
| .remove(); | |
| text.exit() | |
| .transition(t) | |
| .attr("opacity", 1e-6) | |
| .remove(); | |
| //UPDATE | |
| circle | |
| .transition(t) | |
| .style("fill", "#3a403d") | |
| .attr("r", function(d){ return d.r }) | |
| .attr("cx", function(d){ return d.x; }) | |
| .attr("cy", function(d){ return d.y; }) | |
| text | |
| .transition(t) | |
| .attr("x", function(d){ return d.x; }) | |
| .attr("y", function(d){ return d.y; }); | |
| //ENTER | |
| circle.enter().append("circle") | |
| .attr("r", 1e-6) | |
| .attr("cx", function(d){ return d.x; }) | |
| .attr("cy", function(d){ return d.y; }) | |
| .style("fill", "#fff") | |
| .transition(t) | |
| .style("fill", "#45b29d") | |
| .attr("r", function(d){ return d.r }); | |
| text.enter().append("text") | |
| .attr("opacity", 1e-6) | |
| .attr("x", function(d){ return d.x; }) | |
| .attr("y", function(d){ return d.y; }) | |
| .text(function(d){ return d.data.name; }) | |
| .transition(t) | |
| .attr("opacity", 1); | |
| } | |
| function randomizeData(){ | |
| var d0 = shuffle(alphabet), | |
| d1 = [], | |
| d2 = []; | |
| for (var i = 0; i < random(1, alphabet.length); i++){ | |
| d1.push(d0[i]); | |
| } | |
| d1.forEach(function(d){ | |
| d2.push({name: d, size: random(1, 10)}) | |
| }); | |
| return d2; | |
| } | |
| function random(min, max) { | |
| return Math.floor(Math.random() * (max - min + 1)) + min; | |
| } | |
| function shuffle(array) { | |
| var m = array.length, t, i; | |
| // While there remain elements to shuffle… | |
| while (m) { | |
| // Pick a remaining element… | |
| i = Math.floor(Math.random() * m--); | |
| // And swap it with the current element. | |
| t = array[m]; | |
| array[m] = array[i]; | |
| array[i] = t; | |
| } | |
| return array; | |
| } | |
| </script> | |
| </body> | |
| </html> |