Book Image

Learning Responsive Data Visualization

By : Christoph Körner
Book Image

Learning Responsive Data Visualization

By: Christoph Körner

Overview of this book

Using D3.js and Responsive Design principles, you will not just be able to implement visualizations that look and feel awesome across all devices and screen resolutions, but you will also boost your productivity and reduce development time by making use of Bootstrap—the most popular framework for developing responsive web applications. This book teaches the basics of scalable vector graphics (SVG), D3.js, and Bootstrap while focusing on Responsive Design as well as mobile-first visualizations; the reader will start by discovering Bootstrap and how it can be used for creating responsive applications, and then implement a basic bar chart in D3.js. You will learn about loading, parsing, and filtering data in JavaScript and then dive into creating a responsive visualization by using Media Queries, responsive interactions for Mobile and Desktop devices, and transitions to bring the visualization to life. In the following chapters, we build a fully responsive interactive map to display geographic data using GeoJSON and set up integration testing with Protractor to test the application across real devices using a mobile API gateway such as AWS Device Farm. You will finish the journey by discovering the caveats of mobile-first applications and learn how to master cross-browser complications.
Table of Contents (16 chapters)
Learning Responsive Data Visualization
About the Author
About the Reviewer

Chapter 2. Creating a Bar Chart Using D3.js and SVG

In this chapter, you will learn how to create a bar chart, including proper axis and scales—this requires some basic knowledge in D3, which will also be covered here. You will learn the following:

  • How to select and transform DOM elements using D3

  • How to use D3 with SVG elements

  • How to use a data-driven approach to create visualizations

  • How to use data binding and data joins

  • How to use dynamic properties

  • How to draw lines, areas, and arcs

  • How to use scales

  • How to draw axis

  • How to create a bar chart

First, we will start with some simple DOM selections and transformations of HTML elements and continue creating SVG elements using D3. We will also see how to bind data to the DOM and apply data-driven transformations using data joins and dynamic properties.

In the second section, we will see one of the built-in SVG abstractions in D3—the so-called generator functions—especially line, area, and arc generators. These abstractions facilitate working with shapes...