Tag Archives: vuejs

Radial Charts

Why

I wanted to plot the data that is tightly connected to a time of a day as a circular chart, resembling the clock face – for no particular reason other than checking out how it looks.

Another thing I wanted to do was to play with some relatively modern JS framework.

And then I also got a bit a of a spare time on my hands.

What

So as a result, here’s a code that fetches CSV data from Graphite metrics (or any other CSV file) and displays it on a radial chart (aka Radar chart). It’s crude and unoptimised and inefficient, but it serves the goal of visual representation (see examples section below): https://github.com/hydralien/Radial-Charts

It’s mostly an amCharts showcase – amCharts are amazing, I love them dearly. Check them out if you’re not familiar, there’s seemingly nothing you can’t do with them: https://www.amcharts.com/demos/

Additionally, it also uses Github Actions (https://help.github.com/en/actions) as a CI mechanism – so on every push a build is pushed to a branch and then deployed as Github pages using https://github.com/marketplace/actions/github-pages-action#%EF%B8%8F-publish_branch (there’s many action plugins, this one was just the first one that worked).

Examples

Surprisingly, there’s npt that many public datasets with high-granularity daily data available on the Internet, but here’s at least one:
Bike rentals in NYC, January 1st 2020 vs July 1st 2019 (from https://s3.amazonaws.com/tripdata/index.html):

Bike rentals

Shortcomings

  • it’s not a working tool or a developing project – it’s a fun thing built for no reason
  • it loads a ton of unnecessary libraries, becasue how amCharts library for Vue.js is structured, and also because it’s not optimised for anything
  • <many other things>