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)

Summary

This chapter covered several tools that you will use to render your visualizations: axes, which provide contextual information for charts; scales, which map abstract and quantitative domain data to pixel dimensions and other visual aspects; and colors, which are also used to encode information in a data visualization. These tools are part of five modules: d3-interpolate (introduced in the last chapter), d3-axis, d3-scale, d3-scale-chromatic, and d3-color.

We finished this chapter with a complete scatter and bubble chart example that used functions, methods, and properties from practically all of these modules.

Now that you know how to configure scales, axes, and colors, you are ready to explore shape and layout generator functions in D3 so that you can create classic line charts, stacked area charts, pie charts, doughnut charts, and any kind of visualization you can imagine...