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 5. Building Responsive Interactions

In the previous chapter, you learned how to make a chart responsive; this means to look good on all kind of devices. In this chapter, we will look at responsive interactions; this means to feel good on all kind of devices. In this chapter you will learn the following:

  • Discovering the D3 event system

  • Using native events and the D3 event system

  • Understanding responsive interactions

  • Implementing interaction targets

  • Computing the nearest element of the dataset

  • Learning about touch events

  • Reviewing mouse events

  • Implementing a simple zooming behavior

  • Applying complex axis zoom

First, we will look at events in JavaScript and understand how event listeners are used to separate and integrate different components. We will also see the internal D3 event system and learn how to use it. Event systems help to make code cleaner and the execution path easier to follow.

Then, we will look at responsive events and interactions. We will see four different ways to handle interactions...