Created
July 24, 2014 13:55
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D3 opacity tween vs CSS transform
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <style> | |
| html, body { | |
| height: 100%; | |
| } | |
| .wrapper { | |
| width: 500px; | |
| } | |
| .block { | |
| float: left; | |
| width: 50px; | |
| height: 50px; | |
| opacity: 1; | |
| transition: opacity 1s; | |
| } | |
| .block.out { | |
| opacity: 0; | |
| } | |
| button { | |
| margin: 10px 10px 10px 0; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div class="buttons"> | |
| <button data-action="css">CSS fade</button> | |
| <button data-action="d3">d3 tween fade</button> | |
| </div> | |
| <div class="wrapper"></div> | |
| <script src="http://d3js.org/d3.v3.js"></script> | |
| <script> | |
| var visible = true; | |
| var n = 5000, | |
| blockSize = '50px'; | |
| var color = d3.scale.category20(); | |
| var el = d3.select('.wrapper'); | |
| var blocks = el.selectAll('.block') | |
| .data(d3.range(n)) | |
| .enter() | |
| .append('div') | |
| .attr('class', 'block') | |
| .style('background-color', function(d, i) { return color(d) }) | |
| function toggleFadeTween() { | |
| blocks.transition().duration(1000) | |
| .style('opacity', +!visible); | |
| visible = !visible; | |
| } | |
| function toggleFadeCss() { | |
| blocks | |
| .style('opacity', undefined) | |
| .classed({ out: visible }); | |
| visible = !visible; | |
| } | |
| d3.select('[data-action="css"]').on('click', toggleFadeCss); | |
| d3.select('[data-action="d3"]').on('click', toggleFadeTween); | |
| </script> | |
| </body> | |
| </html> |
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