June 2026
Intermediate to advanced
582 pages
16h 16m
English
Content preview from Learn D3.js - Second Edition
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15
Creating Tree Visualizations
Hierarchical data structures describe relationships and dependencies, which are essential in many scientific fields. In the next two chapters, you will learn how to create data visualizations that explore different ways to represent hierarchies, using the tools from the d3-hierarchy module.
The hierarchies discussed in this chapter are called trees: networks of nodes with a single root and only one possible path between any two nodes. If your data is nested or has fields that link to other nodes, it may be converted into a hierarchy object for D3’s hierarchical layout generators, which calculate values and set properties to facilitate the graphical representation of hierarchical data.
The d3-hierarchy module has ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.