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| license: mit |
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| id | size | name | category | date | |
|---|---|---|---|---|---|
| 1 | 15 | A1 | A | 1533757808 | |
| 2 | 15 | A2 | A | 1520279408 | |
| 3 | 15 | A3 | A | 1524513008 | |
| 4 | 15 | A4 | A | 1543953008 | |
| 5 | 15 | A5 | A | 1522513008 | |
| 11 | 25 | A1 | B | 1524513008 | |
| 12 | 25 | A2 | B | 1520279408 | |
| 13 | 25 | A3 | B | 1533757808 | |
| 14 | 25 | A4 | B | 1543953008 | |
| 15 | 25 | B5 | B | 1522513008 | |
| 21 | 35 | A1 | C | 1520279408 | |
| 22 | 35 | A2 | C | 1524513008 | |
| 23 | 35 | A3 | C | 1522513008 | |
| 24 | 35 | A4 | C | 1543953008 | |
| 25 | 35 | C5 | C | 1533757808 |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <style> | |
| body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
| </style> | |
| </head> | |
| <body> | |
| <button id="A">Category A</button> | |
| <button id="B">Category B</button> | |
| <button id="C">Category C</button> | |
| <script> | |
| // Feel free to change or delete any of the code you see in this editor! | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", 960) | |
| .attr("height", 500) | |
| const filterAndDisplay = (data, filterByKey, xScale, yScale, radiusScale) => { | |
| const filteredData = data.filter(item => item.key === filterByKey)[0].values | |
| const circlesToUpdate = svg.selectAll('.circle_group') | |
| .data(filteredData, d => d.name) | |
| circlesToUpdate | |
| .exit() | |
| .transition() | |
| .duration(1000) | |
| .attr('cx', d => 0) | |
| .attr('cy', d => 0) | |
| .attr('r', d => radiusScale(d.size)) | |
| .remove() | |
| const enteredCircles = circlesToUpdate | |
| .enter() | |
| .append('circle') | |
| .attr('class', 'circle_group') | |
| .attr('r', 2) | |
| .attr('cx', d => xScale.range()[1]) | |
| .attr('cy', 0) | |
| .transition() | |
| .duration(500) | |
| .delay((d, i) => i * 10) | |
| .attr('cx', d => xScale(d.date)) | |
| .attr('cy', d => yScale(d.size)) | |
| .attr('r', d => radiusScale(d.size)) | |
| const updatingCircles = circlesToUpdate | |
| .transition() | |
| .duration(500) | |
| .delay((d, i) => (i * 10 * 2)) | |
| .attr('cy', d => yScale(d.size)) | |
| .attr('r', d => radiusScale(d.size)) | |
| } | |
| d3.csv('data_points.csv', function(data){ | |
| console.log('data', data) | |
| var myData = d3.nest() | |
| .key(d => d.category) | |
| .entries(data) | |
| const xScale = d3.scaleLinear() | |
| .domain(d3.extent(data, d => d.date)) | |
| .range([100,960]) | |
| const yScale = d3.scaleLinear() | |
| .domain(d3.extent(data, d => d.size)) | |
| .range([400,100]) | |
| const radiusScale = d3.scaleLinear() | |
| .domain(d3.extent(data, d => d.size)) | |
| .range([10, 20]) | |
| filterAndDisplay(myData, "A", xScale, yScale, radiusScale) | |
| d3.selectAll('button') | |
| .on('click', function(){ | |
| const filter = d3.select(this).attr('id') | |
| svg.append('text').text(filter) | |
| filterAndDisplay(myData, filter, xScale, yScale, radiusScale) | |
| }) | |
| }) | |
| </script> | |
| </body> |
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