Get ready to impress yourself and your audience with stunning data visualizations, and let’s get started on this exciting journey together!
What Is a Choropleth Map?
A choropleth map is a type of thematic map that uses color to represent values of a specific quantity within different regions or geopolitical areas. The map is divided into areas or polygons, and the color of each area represents the value of the data being visualized. Typically, darker shades of color indicate higher values, while lighter shades represent lower values.
So, as I mentioned, in this tutorial, we’ll be creating a JS-based choropleth map to showcase Queen Elizabeth II’s state visits around the world. By using different colors to represent the number of visits in each region, we can easily identify which areas the Queen visited the most frequently. The final interactive choropleth map will look like this:
How To Build a Basic Choropleth Map
- Set up an HTML page to display the map.
- Include the data.
1. Set up an HTML Page To Display the Choropleth Map
To start creating the choropleth map, the first step is to set up an HTML page with a
div element and give it a unique ID to reference it later.
I’ll set the width and height of the
div element to 100% to render the map on the whole page, but you can adjust these values to suit your needs. This