Adding a Tooltip
Explore how to add interactive tooltips to scatterplots using D3.js. Understand why HTML tooltips are preferred over SVG for positioning and styling. Learn to create a tooltip structure and style it for dynamic display on mouse hover to improve user experience.
We'll cover the following...
For our next project, we are going to add interactions to our scatterplot. We created a scatterplot in an earlier section, so we are going to bring back that code. Here is the completed project we left off with.
The scatterplot is displaying hundreds of dots. It can be difficult to read each dot. We can use tooltips to improve the user experience.
We briefly talked about how to listen for events at the start of this section. D3 provides an API to listen for events on our selections. All browser ...