Experimenting with transitions using a pack layout.
forked from matt81m's block: Pack Layout with Transitions
Created
January 30, 2016 02:31
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Pack Layout with Transitions
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> | |
| <style> | |
| body { | |
| background-color: #e9e9e9; | |
| margin:0; | |
| padding:0; | |
| position:fixed; | |
| top:0; | |
| right:0; | |
| bottom:0; | |
| left:0; | |
| } | |
| figure { margin-top: 45px; height: 100%; } | |
| svg { width:100%; height: 100% } | |
| .flex-container { | |
| display: flex; | |
| flex-flow: row wrap; | |
| width: 100%; | |
| height: 30px; | |
| } | |
| h3 { | |
| margin: 0; | |
| flex: 1; | |
| height: 100%; | |
| cursor: pointer; | |
| font-family: 'Helvetica'; | |
| padding-top:15px; | |
| padding-bottom: 10px; | |
| background-color: white; | |
| color: #666666; | |
| letter-spacing: 0.5; | |
| box-shadow: 0 0 3px rgba(0,0,0,0.2); | |
| text-align:center; | |
| } | |
| h3:hover { | |
| color: #F06060; | |
| background-color: #f5f5f5; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div class="flex-container"> | |
| <h3 class="state">State</h3> | |
| <h3 class="national">National</h3> | |
| </div> | |
| <figure></figure> | |
| <script> | |
| var margin = {top: 20, right: 20, bottom: 20, left: 20}; | |
| var svg = d3.select("figure").append("svg"); | |
| var svgNode = d3.select('svg').node(); | |
| var g = svg.append('g') | |
| .attr('transform', 'translate(' + (svgNode.clientWidth/2 - 200) + ',0)') | |
| var ease = 'cubic'; | |
| var diameter = 400; | |
| var pack = d3.layout.pack() | |
| .sort(function(a, b) { console.log(a); return a.category < b.cateogory; }) | |
| .size([diameter, diameter]) | |
| .padding(20); | |
| var color = d3.scale.ordinal() | |
| .range(['#5C4B51', '#8CBEB2', '#F3B562', '#F06060']); | |
| var fontSize = d3.scale.linear() | |
| .domain([1, 10]) | |
| .range([12, 50]); | |
| d3.json('packData.json', function(err, data) { | |
| var nested = d3.nest() | |
| .key(function(v) { return v.region; }) | |
| .entries(data) | |
| .map(function(v) { | |
| return { | |
| region: v['key'], | |
| children: v['values'] | |
| } | |
| }); | |
| update(nested[0]); | |
| d3.select('.state').on('click', function() { | |
| update(nested[0]) | |
| }); | |
| d3.select('.national').on('click', function() { | |
| update(nested[1]); | |
| }); | |
| }); | |
| function update(data) { | |
| var node = g.selectAll('.node') | |
| .data(pack.nodes(data), function(d) { return d.category; }); | |
| var enterNodes = node.enter().append('g') | |
| .classed('node', true); | |
| enterNodes.append('circle') | |
| .classed('circle', true) | |
| .attr('fill', function(d) { return color(d.category); }) | |
| .each(function(d, i) { | |
| if (i === 0) { | |
| d3.select(this).attr('fill', 'white'); | |
| } | |
| }); | |
| enterNodes.append('text') | |
| .text(function(d) { return d.category ? d.category.toUpperCase() : ''; }) | |
| .attr({ | |
| fill: 'white', | |
| 'font-weight': 'bold', | |
| 'text-anchor': 'middle', | |
| 'font-family': 'sans-serif' | |
| }); | |
| node.transition().attr('transform', function(d) { | |
| return 'translate(' + d.x + ',' + d.y + ')'; | |
| }); | |
| node.select('.circle') | |
| .transition() | |
| .duration(600) | |
| .ease(ease) | |
| .attr('r', function(d) { return d.r; }); | |
| node.select('text') | |
| .transition() | |
| .duration(600) | |
| .ease(ease) | |
| .attr('font-size', function(d) { return fontSize(d.value); }) | |
| .attr('transform', function(d) { | |
| return 'translate(0,' + (fontSize(d.value) / 3) + ')'; | |
| }); | |
| } | |
| </script> | |
| </body> |
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| [ | |
| { | |
| "category": "walk", | |
| "region": "national", | |
| "value": "3.08392" | |
| }, | |
| { | |
| "category": "walk", | |
| "region": "state", | |
| "value": "8.56503" | |
| }, | |
| { | |
| "category": "bike", | |
| "region": "national", | |
| "value": "8.65901" | |
| }, | |
| { | |
| "category": "bike", | |
| "region": "state", | |
| "value": "3.41099" | |
| }, | |
| { | |
| "category": "run", | |
| "region": "national", | |
| "value": "1.51538" | |
| }, | |
| { | |
| "category": "run", | |
| "region": "state", | |
| "value": "7.79517" | |
| }, | |
| { | |
| "category": "swim", | |
| "region": "national", | |
| "value": "8.16451" | |
| }, | |
| { | |
| "category": "swim", | |
| "region": "state", | |
| "value": "4.41115" | |
| } | |
| ] |
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