Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Learning D3.js Mapping

You're reading from   Learning D3.js Mapping Build stunning maps and visualizations using D3.js

Arrow left icon
Product type Paperback
Published in Dec 2014
Publisher
ISBN-13 9781783985609
Length 126 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Authors (2):
Arrow left icon
Thomas Newton Thomas Newton
Author Profile Icon Thomas Newton
Thomas Newton
Oscar Villarreal Oscar Villarreal
Author Profile Icon Oscar Villarreal
Oscar Villarreal
Arrow right icon
View More author details
Toc

Table of Contents (9) Chapters Close

Preface 1. Gather Your Cartographer's Toolbox FREE CHAPTER 2. Creating Images from Simple Text 3. Producing Graphics from Data – the Foundations of D3 4. Creating a Map 5. Click-click Boom! Applying Interactivity to Your Map 6. Finding and Working with Geographic Data 7. Testing Index

Events and how they occur

Taken directly from the w3 specifications:

"The Event interface is used to provide contextual information about an event to the handler processing the event. An object that implements the Event interface is generally passed as the first parameter to an event handler. More specific context information is passed to event handlers by deriving additional interfaces from Event which contain information directly relating to the type of event they accompany. These derived interfaces are also implemented by the object passed to the event listener."

In other words, an event is an action that takes place in your browser by user input. If your user clicks, touches, drags, and rotates, an event will fire. If you have event listeners registered to those particular events, the listeners will catch the event and determine the event type. The listeners will also expose properties associated with the event. For example, if we want to add an event listener in plain JavaScript...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime
Banner background image