400 years of Meteor Showers

Summary

For most of my data viz journey, I have been using D3 to create interactive pieces and then straight Illustrator for static images. An illustrator is great for this. However, there is one source of frustration I have for doing data projects on Illustrator, and that is you cannot use large datasets on Illustrator because it's just a lot of manual work to process all of that.

In the past, I had used p5, honestly, to learn how to code, but also to practice data art. P5 is the JavaScript version of Processing (learn more about Processing here and p5 here, which is what I used to create the visualization below!

Into the process

The data comes from a public dataset of meteor strikes over the past 400 years, which in total are 34,000 lines of data.

Just over 34K rows of data in Excel! The challenge here was how to visualize as much information as possible from this data into a standard visual output. The data included the place where the meteor landed, the year that it landed, its mass, longitude and latitude coordinates, and whether it was actually found in that place.

I did some basic restructuring of the data to order it by mass, as the idea from the beginning was that the mass would be the size of the circle. And I would attempt to categorize it through color using the years to make a basic chart and see what that looked like. And of course, with Long and Lat comes a map. So I used the below base map as the background and guideline for the piece.
Now it's coding time. If you want some strong details about the coding process, I suggest using the course by following along. I was able to create the below:

Stylizing the Poster

Some advantages to using processing include, mapping data to objects is very easy! It draws onto a canvas on loop, so you can iteratively change values as it loops through. You are able to bring in different fonts into the program so text can be formatted. It's very easy to make quick prototypes, so I'll definitely use it more often and hopefully with more abstract approaches.

From there, I exported to Illustrator as an SVG and made the colour changes, added text, allowing us to get to this final output poster.