Excercise for d3.js v4
block https://bl.ocks.org/yasu47b/735ba2dbb7b243de36b3a8492ca6c003
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October 26, 2017 00:35
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| <!doctype html> | |
| <html> | |
| <head> | |
| <link rel="stylesheet" href="main.css" type="text/css"> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.11.0/d3.min.js"></script></head> | |
| <body> | |
| <script src="main.js"></script> | |
| </body> | |
| </html> |
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| svg { | |
| width: 100%; | |
| } |
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| var data = [10, 20, 30, 40]; | |
| var svg = d3.select("body").append('div') | |
| .classed('circles', true) | |
| .append("svg") | |
| var circles = svg.selectAll('circle') | |
| .data(data) | |
| .enter() | |
| .append('circle') | |
| .attr('cy', 100) | |
| .attr('cx', function(d){ | |
| return d * 10; | |
| }) | |
| .attr('r', function(d){ return d}) | |
| // change colors | |
| var colors = ['red', 'purple', 'pink', 'yellow', 'blue'] | |
| console.log(circles) | |
| function changecolor() { | |
| circles[0].forEach(function(v,i){ | |
| console.log('change') | |
| console.log(v,i) | |
| d3.select(v).attr('fill', colors[i]) | |
| }) | |
| } | |
| setTimeout(function() { | |
| }, 2000) | |
| setTimeout(function() { | |
| changeElementColor(d3.selectAll('circle')) | |
| }, 1000) | |
| function changeElementColor(d3Element){ | |
| d3Element | |
| .transition().duration(0) | |
| .style("fill", "green") | |
| .transition().duration(1000) | |
| .style("fill", "yellow") | |
| .transition().delay(1000).duration(1000) | |
| .style("fill", "red"); | |
| } |
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