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D3.js Quick Start Guide

You're reading from   D3.js Quick Start Guide Create amazing, interactive visualizations in the browser with JavaScript

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Product type Paperback
Published in Sep 2018
Publisher Packt
ISBN-13 9781789342383
Length 180 pages
Edition 1st Edition
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Author (1):
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Matthew Huntington Matthew Huntington
Author Profile Icon Matthew Huntington
Matthew Huntington
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Table of Contents (10) Chapters Close

Preface 1. Getting Started with D3.js 2. Using SVG to Create Images Using Code FREE CHAPTER 3. Building an Interactive Scatter Plot 4. Making a Basic Scatter Plot Interactive 5. Creating a Bar Graph Using a Data File 6. Animating SVG Elements to Create an Interactive Pie Chart 7. Using Physics to Create a Force-Directed Graph 8. Mapping 9. Other Books You May Enjoy

Positioning an element

The <svg> tag is an inline element, such as an image (as opposed to a block element such as a <div>). Elements within the <svg> are positioned similar to Photoshop, with a set of coordinates that follow the form (x,y). An example of this could be (10,15), which translates to x=10 and y=15. This is different than HTML, where elements are laid out relative to one another. Here are some important things to keep in mind:

  • The point (0,0) is the upper–left corner of the <svg> element.
  • As y values increase, the point moves vertically down the <svg> element.
  • Don't confuse this with a typical coordinate system that has (0,0) at the lower–left corner with a point moving up, as y increases in value. This diagram shows the difference between a traditional coordinate system and an SVG coordinate system:

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D3.js Quick Start Guide
Published in: Sep 2018
Publisher: Packt
ISBN-13: 9781789342383
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