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Category: charts

The Many Ways of Getting Data Into Charts

Data is available everywhere nowadays, whether it’s in a plain text file, a REST API, an online Google sheet… you name it! It’s that variety of context that makes building graphs more than simply having a database in your local project — where there is data, there is a way. That’s pretty much what we’re going to look at in this post: making JavaScript data visualizations using data from a variety of sources. If you want to follow along and make any of the visualizations we’re covering here, we’ll be using Chart.js so grab that and include it in...

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Simple Interactive Pie Chart with CSS Variables and Houdini Magic

I got the idea for doing something of the kind when I stumbled across this interactive SVG pie chart. While the SVG code is as compact as it gets (a single element!), using strokes for creating pie chart slices is problematic as we run into rendering issues on Windows for Firefox and Edge. Plus, in 2018, we can accomplish a lot more with a lot less JavaScript! AI got the following result down to a single HTML element for the chart and very little JavaScript. The future should completely eliminate the need for any JavaScript, but more on that...

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