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Trevor Ward - Augmented Reality using Appcelerator Titanium Starter

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Trevor Ward Augmented Reality using Appcelerator Titanium Starter
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Learn to create Augmented Reality applications in no time using the Appcelerator Titanium Framework

  • Create an open source Augmented Reality Titanium application
  • Build an effective display of multiple points of interest.
  • Learn to calculate distances between points of interest.
  • Understand how to effectively and cleanly move the points of interest as the device rotates

In Detail

Titanium Mobile has quickly become the platform of choice for many mobile developers and is growing and changing at a rapid rate. From the implementation of CommonJS, Cloud Services, MVC design patterns and more, the last year in Titanium development has been a roller coaster of change for the better. Augmented Reality is a hot area for mobile applications and this book along with the augmentedTi open source application will give a great start to all augmented applications..

This book will show you how to build an Augmented Reality application, which is clean, efficient and usable. It shows how to hide the processing from the user and build a display which updates and rotates smoothly.

Mobile devices have got more powerful, but they still have limitations. Augmented Reality applications test these devices to breaking point and without the correct coding techniques make the applications unresponsive and cumbersome.

This book gives a solution, which will enable you to build an effective application, and is accompanied by a complete working application and source code. Its essential for anybody who is creating a multiple points of interest augmented reality application. It shows how to build this type of application efficiently and takes into consideration the devices limitations and processing capabilities

What you will learn from this book

  • Getting current location of devices
  • Obtaining and displaying the data relevant to the current location
  • Calculating the distance between two points
  • Scaling images based on distance
  • Titanium common JS application architecture
  • Handling device processing limitations
  • Understanding the pitfalls in developing Augmented Reality applications

Approach

Its a quick start tutorial to help you get started with creating Augmented Reality applications and acquainting yourself with essential aspects of creating AR applications using the Appcelerator Titanium Framework. The instructions are clear with easy to follow examples.

Who this book is written for

This book is for anybody who wishes to understand how to build an Augmented Reality Application. It uses the Appcelerator Titanium mobile development framework, but the techniques and practices can be applied to other frameworks and native code.

You will need to have a good working knowledge of development and JavaScript, it is not aimed at the beginner.

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Augmented Reality using Appcelerator Titanium Starter

Augmented Reality using Appcelerator Titanium Starter

Copyright 2012 Packt Publishing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

First published: October 2012

Production Reference: 1191012

Published by Packt Publishing Ltd.

Livery Place

35 Livery Street

Birmingham B3 2PB, UK.

ISBN 978-1-84969-390-5

www.packtpub.com

Credits

Author

Trevor Ward

Reviewers

Ben Bahrenburg

Imraan Jhetam

Acquisition Editor

Kartikey Pandey

Commissioning Editor

Meeta Rajani

Technical Editor

Vrinda Amberkar

Project Coordinator

Esha Thakker

Proofreader

Aaron Nash

Indexer

Hemangini Bari

Production Coordinator

Prachali Bhiwandkar

Cover Work

Prachali Bhiwandkar

Cover Image

Sheetal Aute

Foreword

I first starting thinking about human/machine augmentations in 2000 when I started a company focused in the Telco software space. Initially, I focused on how to enable wireless content development, but at that time, devices were primitive. High speed networks hadn't fully taken on in many areas of the U.S. for mobile networks and the feeble attempts at standardization were clearly doomed. We pivoted the company to focus on speech-enabled voice applications over normal telephones.

In 2005, once again, I was intrigued by the emergence of augmenting human/machine relations by the idea of "multi-modal" applications; the concept that you could use different modes of computer input and output that are better suited for human beings. For example, I might prefer to use voice to input a question in the form of "how would I get to 123 Main Street?" to the computer. However, the results would be more realistic in the form of a visual map with turn-by-turn driving directions instead of the computer reading them back to me in voice. At that time, mobile devices had severe limitations of both processing power and memory that made it difficult to make it work for broader use. Worse, if you could build the capability, you couldn't easily distribute it to end users as the carriers owned distributions with an iron fist and each network was different and very complicated.

Steve Jobs and Apple changed all of that in 2007 with the introduction of the iPhone. Having spent a few years thinking about many great ideas that were not practical to deliver, I was immediately struck at the opportunity in front of us as human beings. The relationship of human/machine interaction at that point changed forever. The "real" personal computer was invented; that beige box under my desk was no longer the future and certainly wasn't personal anymore.

Fast forward five years and Apple's Siri is now popular and we have the ability to create amazing applications with new experiences possible within hours, not months or years. We have the ability to click on a button and make these applications available to hundreds of millions of devices on hundreds of networks all around the world almost instantly. We can create these experiences without much involvement from anyone.

Human interactions with machines will never be the same again. I once heard Eric Schmidt, Chairman of Google, say that the next two to three decades will be about machines augmenting our lives as humans, and hopefully, making them better. For the past two decades, we humans have had to keep up our machineswe run regular anti-virus software, clean the hard disk to recover lost space, and have to manage our "inbox". When's the last time you got lost in the modern world with the advent of Google Maps on your phone?

Augmented Reality is one large area of opportunity where we can digitally overlay computer augmented interactions, information, and experiences, and represent them on a real-world viewport. In the future, our human experiences will be constantly be made better and more interesting with the help of computers. Much like Google search has made the collective human brain more accessible and readily available at our finger tips, Augmented Reality is the next wave of this in a new presentation context such as phones, tablets and eventually across other types of devices such as cars and TVs.

Our mission at Appcelerator has been to enable this new wave of innovation and creative experiences by lowering the cost of development and making it more accessible to developers worldwide through Titanium.

Trevor has been a long-time friend of Appcelerator and a passionate and knowledgeable member of our community. This books explores how to use Titanium to create your own experiences to help make humanity a slightly better place than it was before.

Codestrong!

Jeff Haynie

CEO, Appcelerator

www.PacktPub.com
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Augmented Reality using Appcelerator Titanium Starter

Welcome to Augmented Reality using Appcelerator Titanium.

Advances in technology are driven by a need. Some of the greatest advances are made during wars, the computer revolution being one of them. I doubt we will ever know the full extent of the advances made with computers during the Second World War, but they were significant. After the war ended Manchester, England became home to a team of leading academics and industry experts, where the Manchester Baby was born. This has now been replicated at the Science Museum in Manchester, and was the first fully functioning computer as we know them today.

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