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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

May the force (simulation) be with you


One of the cooler layouts provided by D3 (in the d3-force package) is force simulation. This is actually really useful, as it allows us to position elements on the screen using simulated physical properties. This can be really useful when the positioning of an element doesn't have anything to do with its data, such as in a network diagram, where the linkages between items is more important than when they are on screen.

We will use the network dataset from the last example to create a network of connections in the show. Go to main.js, comment out the last example, and add this line:

westerosChart.init('force', 'data/stormofswords.csv');

Go back to chapter7/index and add a new function enclosure:

westerosChart.force = function Force(_data) { 
  const nodes = uniques( 
    _data.map(d => d.Target)
      .concat(_data.map(d => d.Source)), 
    d => d) 
     .map(d => 
     ({ id: d, total: _data.filter(e => e.Source === d).length })); 

  fixateColors...

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