HTML5画布下js的文字云/标签云效果-D3 Cloud
如果你想创建漂亮的文字云或者标签云效果的话,你可以考虑使用D3-Cloud,这是一个超棒的开源字体云效果javascript类库,基于知名的D3.js,能够帮助你生成类似wordle.com风格的字体或者标签云效果。
这个类库使用HTML5画布来生成字体效果,整个布局算法可以异步实现,只需要设置时间块大小。并且支持动画特效。整体性能非常不错。
配置如下
var fontSize = d3.scale.log().range([10, 100]); var layout = cloud() .size([960, 600]) .timeInterval(10) .text(function(d) { return d.key; }) .font("Impact") .fontSize(function(d) { return fontSize(+d.value); }) .rotate(function(d) { return ~~(Math.random() * 5) * 30 - 60; }) .padding(1) .on("word", progress) .on("end", draw) .words([…]) .start();
复制代码
文字,字体和字体大小,旋转和边框距离都可以自定义。包含两个事件:
word - 当每一个文字添加后触发
end - 当全部文字添加后触发
当然,支持web字体,你可以使用@font-face来设置字体风格。如果你能够应用到自己的网站中,肯定能够给你的网站增色不少!
查看演示:http://www.jasondavies.com/wordcloud/#http%3A%2F%2Fen.wikipedia.org%2Fwiki%2F%7Bword%7D=html5cn

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