Book Image

Learn D3.js

By : Helder da Rocha
2 (1)
Book Image

Learn D3.js

2 (1)
By: Helder da Rocha

Overview of this book

This book is a practical hands-on introduction to D3 (Data-driven Documents): the most popular open-source JavaScript library for creating interactive web-based data visualizations. Based entirely on open web standards, D3 provides an integrated collection of tools for efficiently binding data to graphical elements. If you have basic knowledge of HTML, CSS and JavaScript you can use D3.js to create beautiful interactive web-based data visualizations. D3 is not a charting library. It doesn’t contain any pre-defined chart types, but can be used to create whatever visual representations of data you can imagine. The goal of this book is to introduce D3 and provide a learning path so that you obtain a solid understanding of its fundamental concepts, learn to use most of its modules and functions, and gain enough experience to create your own D3 visualizations. You will learn how to create bar, line, pie and scatter charts, trees, dendograms, treemaps, circle packs, chord/ribbon diagrams, sankey diagrams, animated network diagrams, and maps using different geographical projections. Fundamental concepts are explained in each chapter and then applied to a larger example in step-by-step tutorials, complete with full code, from hundreds of examples you can download and run. This book covers D3 version 5 and is based on ES2015 JavaScript.
Table of Contents (13 chapters)

Data Binding

The d3-selection module is a core library in any D3 application. It's hard to find a D3 application that doesn't use most of its methods, which form the vocabulary of a Domain-Specific Language (DSL) that chains together operations to select, bind, and update data, creating expressions that run as data-driven streams, dynamically transforming Document Object Model (DOM) components. One of the main goals of this chapter is to introduce you to the methods of this module, demonstrating how to use them for selections, updates, joins, and DOM manipulation.

This chapter will also cover the data-binding strategies used by D3, most of which are based on the general update pattern, which is a fundamental paradigm in D3. It was briefly introduced in the previous chapter, but it's important that you understand it very well, since it's used in practically...