Book Image

D3.js 4.x Data Visualization - Third Edition

By : Aendrew Rininsland, Swizec Teller
Book Image

D3.js 4.x Data Visualization - Third Edition

By: Aendrew Rininsland, Swizec Teller

Overview of this book

Want to get started with impressive interactive visualizations and implement them in your daily tasks? This book offers the perfect solution-D3.js. It has emerged as the most popular tool for data visualization. This book will teach you how to implement the features of the latest version of D3 while writing JavaScript using the newest tools and technique You will start by setting up the D3 environment and making your first basic bar chart. You will then build stunning SVG and Canvas-based data visualizations while writing testable, extensible code,as accurate and informative as it is visually stimulating. Step-by-step examples walk you through creating, integrating, and debugging different types of visualization and will have you building basic visualizations (such as bar, line, and scatter graphs) in no time. By the end of this book, you will have mastered the techniques necessary to successfully visualize data and will be ready to use D3 to transform any data into an engaging and sophisticated visualization.
Table of Contents (18 chapters)
Title Page
About the Authors
About the Author2
About the Reviewer
Customer Feedback
Shape Primitives of D3


Now that we can make all these different shapes, let's use them to create something actually useful. One way we can do that is by using lines and text to create graph axes. It would be tedious though, so D3 makes our lives easier with axis generators. They take care of drawing a line, putting on some ticks, adding labels, evenly spacing them, and so on.

A D3 axis is just a combination of path generators configured for awesomeness. All we have to do for a simple linear axis is create a scale and tell the axis to use it.


In D3, it's worth remembering that a scale is a function that maps an input range to an output domain, whereas an axis is merely a visual representation of a scale.

Also, because we will be using scales a lot from now on, let's do that Scott Murray exercise from Chapter 1, Getting Started with D3, ES2017, and Node.js, again: Input! Domain! Output! Range! Input! Domain! Output! Range!

Honestly, it really never gets old.

For a more customized axis, we might have to define...