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D3.js 4.x Data Visualization

D3.js 4.x Data Visualization

By : Aendrew Rininsland, Teller
2 (2)
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D3.js 4.x Data Visualization

D3.js 4.x Data Visualization

2 (2)
By: Aendrew Rininsland, 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 (11 chapters)
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3
Shape Primitives of D3

Hierarchical layouts


All hierarchical layouts are based on an abstract hierarchy layout designed for representing hierarchical data: a recursive parent-child structure. As mentioned earlier, imagine a tree or an organization chart.

All the code for the partition, tree, cluster, pack, and treemap layouts are defined in the d3-hierarchy module, and they all follow similar design patterns. The layouts are very similar and share lots of common aspects; so, to avoid repeating ourselves a whole bunch, we'll look at the common stuff first, and then focus on the differences.

First of all, we need some hierarchical data. In the book repository, I've provided a file called GoT-lineages-screentimes.json that contains all the character lineages (by father), the amount of time spent on screen, and the number of episodes a character is in. We'll use genealogies of each character as a way of creating a hierarchy, then time on screen to size various page elements in layouts that necessarily need them (I don...

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