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D3.js 4.x Data Visualization

D3.js 4.x Data Visualization - Third Edition

By : Aendrew Rininsland , Swizec Teller
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D3.js 4.x Data Visualization

D3.js 4.x Data Visualization

2 (2)
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 (11 chapters)
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3
Shape Primitives of D3

DOM


The Document Object Model (DOM) is a language-agnostic model for representing structured documents built in HTML, XML, or similar standards. You can think of it as a tree of nodes that closely resembles the document parsed by the browser.

 

At the top, there is an implicit document node, which represents the <html> tag; browsers create this tag even if you don't specify it and then build the tree off this root node according to what your document looks like. Consider a simple HTML file to be like the following:

<!DOCTYPE html> 
<title>A title</title> 
<div> 
  <p>A paragraph of text</p> 
</div> 
<ul> 
  <li>List item</li> 
  <li>List item 2, <em><strong>italic</strong></em></li> 
</ul>

Note how we don't have the <html>, <head> or <body> tags. Chrome will parse the preceding code to DOM, as follows:

Type document into the Chrome JavaScript console to get this tree view...

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