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Learn something new in an Instant! A short, fast, focused guide delivering immediate results

Determine the user's location using a web browser and a few lines of JavaScript

Write location-aware applications for the mobile web

Understand how geolocation works on the web, and when to use it

Description

We don't just surf the Web from our desktops any more ‚Äì we take it with us, everywhere we go. Modern devices contain sophisticated hardware and software to determine the user's location. Apps such as Foursquare and Google Maps use this to create new kinds of functionality. Now, you can do this too with the HTML5 Geolocation API. "Instant HTML5 Geolocation How-to" is a simple guide to adding location information to your web applications. The practical, easy-to-follow recipes are designed to help you learn the ins and outs of the API. You'll learn how to use it, how it works, and how to save and display geographic information on the web. Beginning with a solid grounding in how the Geolocation API works and when to use it, you will learn how to determine, store, display, and track the user's location via a series of clear recipes. You will learn the different ways location is determined on different devices, including desktops and laptops that don't have GPS units. You'll also learn how to selectively use these different behaviours, based on the speed, accuracy, and battery life requirements of your application. You'll also get some hints about using MySQL databases to store sets of location data. "Instant HTML5 Geolocation How-to" will teach you everything you need to know about retrieving the location information your application needs, across multiple devices and platforms.

What you will learn

Understand how JavaScript Geolocation API works, and when to use it

Use the syntax of JavaScript Geolocation API

Retrieve the user s location, altitude, speed, and direction

Store user s location in MySQL

Display user s location on Google Maps

Track user s location when he moves around

Retrieve user s location only when a GPS unit is switched on

Display user s path on Google Maps

What do you get with Print?

Instant access to your digital copy whilst your Print order is Shipped

Paperback book shipped to your preferred address

Redeem a companion digital copy on all Print orders

Access this title in our online reader with advanced features

DRM FREE - Read whenever, wherever and however you want

Frequently bought together

$24.99

Instant HTML5 Responsive Table Design How-to

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Total $ 49.98

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Unfortunately, due to several restrictions, we are unable to ship to the following countries:

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Michele B. Jul 16, 2013

This manual, while being more directed to professional profiles web-developing oriented, can also be very helpful for other categories of professionals, including those who have to manage with the world of GIS and then of georeferencing. Reading this book you will understand which could be the interactions between users and web applications; personally, since I'm a GIS technologist, I have been able to achieve significant and deep implications among the topics treated in the manual and the practical applications of GIS.Even if he is not a developer, the great Ben Werdmuller has been able to guide me through the java-script and php languages to connect them, in a simple and intuitive way, to objects closer to me such as a KML or GPS.Another particularly important aspect carried out with a very clear and effective approach in the manual is that relating to the security of users information and the protection of their privacy.As is my habit, in order to check the effectiveness of the procedures explained, I have played step by step all the procedures and have tested all the code in the manual; even in this case I found the clarity of exposition and the thickness of the contents exposed by the author. In particular, the author faces thoroughly and exhaustively all the topics, with the final subsequence that the reader finds an answer to all his questions on the matter, and this once again confirms the professionalism of the author, which is already well known to the public sector. Finally, the excellent model used by the publishing house Packt (already adopted in many of his other publications) to organize and present the topics covered must be underlined, to the advantage of immediacy and clarity that help in an important way the reader in understanding the content exposed.

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Instant HTML5 Geolocation How-to: Learn how to create elegant, location-aware web applications using the JavaScript Geolocation API

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