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Beginning Google Maps Applications with PHP and Ajax: From by Michael Purvis, Jeffrey Sambells, Cameron Turner

By Michael Purvis, Jeffrey Sambells, Cameron Turner

Until lately, construction interactive web-based mapping functions has been a bulky affair. This replaced while Google published its strong Maps API. Beginning Google Maps purposes with Hypertext Preprocessor and Ajax was once written that can assist you benefit from this expertise on your personal endeavorswhether you’re an fanatic enjoying for enjoyable or a qualified construction for revenue. This publication covers model 2 of the API, together with Google’s new Geocoding service.

Authors Jeffrey Sambells, Cameron Turner, and Michael Purvis get rolling with examples that require infrequently any code in any respect, yet you’ll quick turn into familiar with many points of the Maps API. They show robust tools for concurrently plotting huge information units, growing your personal map overlays, and harvesting and geocoding units of addresses. You’ll see tips on how to manage replacement tile units and the place to entry imagery to exploit for them. The authors even assist you to construct your personal geocoder from scratch, for these high-volume batch jobs.

As good as delivering hands-on examples of actual mapping initiatives, this publication offers a whole reference for the Maps API, besides the appropriate points of JavaScript, CSS, personal home page, and SQL. stopover at the authors' site for extra counsel and advice.

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Additional info for Beginning Google Maps Applications with PHP and Ajax: From Novice to Professional

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The advantages of this approach become clear as your project increases in size. With large and complicated Google Maps web applications, you could end up with hundreds of lines of JavaScript mixed in with your XHTML. Separating these out not only increases loading speeds, as the browser can cache the JavaScript independently of the XHTML, but their removal also helps prevent the messy and unreadable code that results from mixing XHTML with other programming languages. Your eyes and your text editor will love you if they don’t have to deal with mixed XHTML and JavaScript at the same time.

Org. We’ll still be using a lot of JSON-like structures for communicating data from the server to the browser. qxd 28 7/25/06 1:26 PM Page 28 CHAPTER 2 ■ GETTING STARTED Iterating JavaScript, like many languages, provides a for loop—a way of repeating a block of code for so many iterations, using a counter. longitude } However, JavaScript also provides a much classier way of setting this up. It’s called a for in loop. longitude } Wow. It automatically gives you back every index that exists in an array or object, without needing to increment anything manually, or ever test boundaries.

Qxd 8 7/25/06 1:24 PM Page 8 CHAPTER 1 ■ INTRODUCING GOOGLE MAPS we’ll be landing at is on the west side of the bay. Click the airport here, too. As you can see in Figure 1-4, a second white dot appears on the airport and a blue line connects the two points. You can see how far your flight was on the right side of the screen, underneath the route label. Wow, our flight seems to have been over 2000 miles! If you made a mistake and accidentally clicked a few extra times in the process of getting to San Francisco, you can use the Undo Last option.

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