31:Teb8,drawChart = function(){ var svg = d3.select("svg") .attr("width", width) .attr("height", height); var sankey = d3.sankey() .nodeWidth(15) .nodePadding(10) .size([width, height]); var formatNumber = d3.format(",.0f"), format = function(d) { return formatNumber(d) + " TWh"; } var path = sankey.link(); var freqCounter = 1; energy.links.forEach(function(d){ d.o_value = d.value; d.value = 1; }) energy.nodes.forEach(function(d,i){ d.color = colors[i%colors.length] }) sankey .nodes(energy.nodes) .links(energy.links) .layout(32); var link = svg.append("g").selectAll(".link") .data(energy.links) .enter().append("path") .attr("class", "link") .attr("d", path) .style("stroke-width", function(d){ return Math.max(1, d.dy); }) .sort(function(a,b) {return b.dy - a.dy}); link.append("title") .text(function(d) {return d.source.name + " -> " + d.target.name + "\n" + format(d.o_value);}); var node = svg.append("g").selectAll(".node") .data(energy.nodes) .enter().append("g") .attr("class", "node") .attr("transform", function(d){ return "translate(" + d.x + ", " + d.y + ")";}) .call(d3.drag() .on("drag", function (event,d){ d.x = event.x d.y = event.y d3.select(this).attr("transform", d => `translate(${d.x},${d.y})`); sankey.relayout(); link.attr("d",path);} )); node.append("rect") .attr("height", function(d) {return d.dy;}) .attr("width", sankey.nodeWidth()) .style("fill", function(d,i) {return d.color}) .style("rx", 5) .style("stroke", "none"); var linkExtent = d3.extent(energy.links, function(d) {return d.o_value}); var frequencyScale = d3.scaleLinear().domain(linkExtent).range([0.05, 1]); var particleSize = d3.scaleLinear().domain(linkExtent).range([1,5]); energy.links.forEach(function(link) { link.freq = frequencyScale(link.o_value); link.particleSize = 2; link.particleColor = d3.scaleLinear().domain([0,1]) .range([link.source.color, link.target.color]) }); var particles = []; function tick(elapsed, time) { //Remove complete particles particles = particles.filter(function(d) {return d.current < d.path.getTotalLength()}); function particleEdgeCanvasPath(elapsed) { var context = d3.select("canvas").node().getContext("2d") context.clearRect(0,0,width,height); context.fillStyle = "gray"; context.lineWidth = "1px"; for (var x in particles) { //Particle Progress: difference between current time, and time of creation var currentTime = elapsed - particles[x].time; //Progress Adjusted for speed? particles[x].current = currentTime * 0.15 * particles[x].speed var currentPos = particles[x].path.getPointAtLength(particles[x].current); context.beginPath(); context.fillStyle = particles[x].link.particleColor(0); context.arc(currentPos.x, currentPos.y + particles[x].offset, particles[x].link.particleSize, 0, 2*Math.PI); context.fill(); } }; //Generate particle data d3.selectAll("path.link") .each(function(d) { for (var x=0; x<2; x++) { //Y jitter var offset = (Math.random() - .5) * (d.dy - 4); //Generate particles based on frequency distribution if (Math.random() < d.freq) { var length = this.getTotalLength(); particles.push({link: d, time: elapsed, offset: offset, path: this, length: length, animateTime: length, speed: 0.5 + (Math.random())}) } } }) particleEdgeCanvasPath(elapsed) }; var t = d3.timer(tick, 1000); }32:Tff4,energy = ({"nodes":[ {"name":"Agricultural 'waste'"}, {"name":"Bio-conversion"}, {"name":"Liquid"}, {"name":"Losses"}, {"name":"Solid"}, {"name":"Gas"}, {"name":"Biofuel imports"}, {"name":"Biomass imports"}, {"name":"Coal imports"}, {"name":"Coal"}, {"name":"Coal reserves"}, {"name":"District heating"}, {"name":"Industry"}, {"name":"Heating and cooling - commercial"}, {"name":"Heating and cooling - homes"}, {"name":"Electricity grid"}, {"name":"Over generation / exports"}, {"name":"H2 conversion"}, {"name":"Road transport"}, {"name":"Agriculture"}, {"name":"Rail transport"}, {"name":"Lighting & appliances - commercial"}, {"name":"Lighting & appliances - homes"}, {"name":"Gas imports"}, {"name":"Ngas"}, {"name":"Gas reserves"}, {"name":"Thermal generation"}, {"name":"Geothermal"}, {"name":"H2"}, {"name":"Hydro"}, {"name":"International shipping"}, {"name":"Domestic aviation"}, {"name":"International aviation"}, {"name":"National navigation"}, {"name":"Marine algae"}, {"name":"Nuclear"}, {"name":"Oil imports"}, {"name":"Oil"}, {"name":"Oil reserves"}, {"name":"Other waste"}, {"name":"Pumped heat"}, {"name":"Solar PV"}, {"name":"Solar Thermal"}, {"name":"Solar"}, {"name":"Tidal"}, {"name":"UK land based bioenergy"}, {"name":"Wave"}, {"name":"Wind"} ], "links":[ {"source":0,"target":1,"value":124.729}, {"source":1,"target":2,"value":0.597}, {"source":1,"target":3,"value":26.862}, {"source":1,"target":4,"value":280.322}, {"source":1,"target":5,"value":81.144}, {"source":6,"target":2,"value":35}, {"source":7,"target":4,"value":35}, {"source":8,"target":9,"value":11.606}, {"source":10,"target":9,"value":63.965}, {"source":9,"target":4,"value":75.571}, {"source":11,"target":12,"value":10.639}, {"source":11,"target":13,"value":22.505}, {"source":11,"target":14,"value":46.184}, {"source":15,"target":16,"value":104.453}, {"source":15,"target":14,"value":113.726}, {"source":15,"target":17,"value":27.14}, {"source":15,"target":12,"value":342.165}, {"source":15,"target":18,"value":37.797}, {"source":15,"target":19,"value":4.412}, {"source":15,"target":13,"value":40.858}, {"source":15,"target":3,"value":56.691}, {"source":15,"target":20,"value":7.863}, {"source":15,"target":21,"value":90.008}, {"source":15,"target":22,"value":93.494}, {"source":23,"target":24,"value":40.719}, {"source":25,"target":24,"value":82.233}, {"source":5,"target":13,"value":0.129}, {"source":5,"target":3,"value":1.401}, {"source":5,"target":26,"value":151.891}, {"source":5,"target":19,"value":2.096}, {"source":5,"target":12,"value":48.58}, {"source":27,"target":15,"value":7.013}, {"source":17,"target":28,"value":20.897}, {"source":17,"target":3,"value":6.242}, {"source":28,"target":18,"value":20.897}, {"source":29,"target":15,"value":6.995}, {"source":2,"target":12,"value":121.066}, {"source":2,"target":30,"value":128.69}, {"source":2,"target":18,"value":135.835}, {"source":2,"target":31,"value":14.458}, {"source":2,"target":32,"value":206.267}, {"source":2,"target":19,"value":3.64}, {"source":2,"target":33,"value":33.218}, {"source":2,"target":20,"value":4.413}, {"source":34,"target":1,"value":4.375}, {"source":24,"target":5,"value":122.952}, {"source":35,"target":26,"value":839.978}, {"source":36,"target":37,"value":504.287}, {"source":38,"target":37,"value":107.703}, {"source":37,"target":2,"value":611.99}, {"source":39,"target":4,"value":56.587}, {"source":39,"target":1,"value":77.81}, {"source":40,"target":14,"value":193.026}, {"source":40,"target":13,"value":70.672}, {"source":41,"target":15,"value":59.901}, {"source":42,"target":14,"value":19.263}, {"source":43,"target":42,"value":19.263}, {"source":43,"target":41,"value":59.901}, {"source":4,"target":19,"value":0.882}, {"source":4,"target":26,"value":400.12}, {"source":4,"target":12,"value":46.477}, {"source":26,"target":15,"value":525.531}, {"source":26,"target":3,"value":787.129}, {"source":26,"target":11,"value":79.329}, {"source":44,"target":15,"value":9.452}, {"source":45,"target":1,"value":182.01}, {"source":46,"target":15,"value":19.013}, {"source":47,"target":15,"value":289.366} ]})33:[] 2f:{"title":"Elijah Meeks - Particle Sankey","cells":[{"id":0,"value":"md`# Elijah Meeks - Particle Sankey\nPorted from: https://bl.ocks.org/emeeks/e9d64d27f286e61493c9`\n","pinned":true,"hidden":false,"mode":"ojs"},{"id":37,"value":"{yield html `\n

\n \n

\n`\ndrawChart()}","pinned":true,"hidden":false,"mode":"ojs"},{"id":35,"value":"$31","pinned":true,"hidden":false,"mode":"ojs"},{"id":180,"value":"energy.links","pinned":true,"hidden":false,"mode":"ojs"},{"id":19,"value":"margin = ({top: 1, right: 1, bottom: 6, left: 1})","pinned":true,"hidden":false,"mode":"ojs"},{"id":24,"value":"width = 960 - margin.left - margin.right","pinned":true,"hidden":false,"mode":"ojs"},{"id":27,"value":"height = 500 - margin.top - margin.bottom","pinned":true,"hidden":false,"mode":"ojs"},{"id":29,"value":"colors = [\n \"#01ffff\",\n \"#f6a7ab\",\n \"#0b2934\",\n \"#fcba74\",\n \"#49d811\",\n \"#ff0000\",\n \"#cea9cf\",\n \"#0137d0\",\n \"#008fe1\",\n \"#330120\",\n \"#00dce6\",\n \"#7e0050\",\n \"#f98b10\",\n \"#9c1bad\",\n \"#ae1daf\"\n]","pinned":true,"hidden":false,"mode":"ojs"},{"id":2,"value":"$32","pinned":true,"hidden":false,"mode":"ojs"},{"id":139,"value":"html`\n\n`","pinned":true,"hidden":false,"mode":"ojs"},{"id":10,"value":"d3 = require(\"d3@6\", \"d3-sankey@0.1\")","pinned":true,"hidden":false,"mode":"ojs"}],"files":"$W33","stdlib":"1","titling":"auto"}