Book Image

D3.js 4.x Data Visualization - Third Edition

By : Aendrew Rininsland, Swizec Teller
Book Image

D3.js 4.x Data Visualization - Third Edition

By: Aendrew Rininsland, Swizec 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 (18 chapters)
Title Page
Credits
About the Authors
About the Author2
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
3
Shape Primitives of D3

Smitten with partition


These next few charts are just going to fly by; they're really similar and we don't have anything else in terms of common functions to write.

Adjacency diagrams are similar to treemaps, but are intended to fill the available space. They tend to be useful for visualizing things such as disk usage. They are created by the partition layout.

Here's our example code in full:

westerosChart.partition = function Partition(_data) { 
  const data = getMajorHouses(_data); 
  const stratify = d3.stratify() 
    .parentId(d => d.fatherLabel) 
    .id(d => d.itemLabel); 

  const root = stratify(data) 
    .sum(d => d.screentime) 
    .sort(heightOrValueComparator); 

  const layout = d3.partition() 
    .size([ 
      this.innerWidth - 100, 
      this.innerHeight, 
    ]) 
    .padding(2) 
    .round(true); 

  layout(root); 

  const nodes = this.container.selectAll('.node') 
    .data(root.descendants().slice(1)) 
    .enter() 
    .append('g') 
      .attr('class', 'node...