Andre Lewis, Cameron Turner, Jeffrey Sambells, Michael's Beginning Google Maps Applications with Rails and Ajax: From PDF

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By Andre Lewis, Cameron Turner, Jeffrey Sambells, Michael Purvis

ISBN-10: 1590597877

ISBN-13: 9781590597873

The Google Maps API is still one of many exhibit examples of the internet 2.0 improvement paradigm. starting Google Maps functions with Rails and Ajax: From amateur to specialist is the 1st ebook to comprehensively introduce the carrier from a developer point of view, displaying you ways you could combine mapping positive factors into your Rails-driven internet applications.Proceeding some distance past simplistic map demonstrate, you are going to draw from various info assets equivalent to the U.S. Census Bureau's TIGER/Line facts and Google's personal geocoding function to construct accomplished geocoding prone for mapping many destinations round the world.The publication additionally steers you thru a number of examples that exhibit the right way to motivate person interplay akin to via pinpointing map destinations, including reviews, and development community-driven maps. you want to decide up a replica of this publication simply because * this can be the 1st booklet to comprehensively introduce the Google Maps program improvement utilizing the Rails improvement framework. * you can be brought to the very newest adjustments to the Google Maps API, embodied within the model 2 unlock. * it truly is written via 4 builders actively all in favour of the production of location-based mapping companies.

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Extra resources for Beginning Google Maps Applications with Rails and Ajax: From Novice to Professional

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Listing 2-1. GETELEMENTBYID — IT’S BACK! getElementByid in Listing 2-1 may have caught your eye. After all, if you’re using Prototype, why not use the more powerful and concise $() function? The answer is that you want to make your code library-agnostic, rather than tying it closely to Prototype. com), and realize that some Rails developers will opt to use alternative libraries. We won’t entirely eschew Prototype, however. In fact, some of the work in Chapter 3 is implemented in both Prototype and “raw’ JavaScript, so you can compare both implementations side by side.

WHITHER THOU, GICON? You can see that we didn’t actually use a GIcon object anywhere in Listing 2-5. If we had one defined, it would be possible to make the marker take on a different appearance, like so: var marker = new GMarker(my_GLatLng, my_GIcon); However, when the icon isn’t specified, the API assumes the red inverted teardrop as a default. There is a more detailed discussion of how to use the GIcon object in Chapter 3. qxd 26 2/2/07 9:32 AM Page 26 CHAPTER 2 ■ GETTING STARTED Detecting Marker Clicks It’s time to make your map respond to the user.

New; in JavaScript, o=new MyClass(). Same principle, different syntax. If you’ve gone under the covers of Rail’s JavaScript helpers and used the Prototype library “in the raw,” you are already familiar with object-oriented JavaScript techniques. qxd 24 2/2/07 9:32 AM Page 24 CHAPTER 2 ■ GETTING STARTED Creating Markers The Google Maps API makes an important distinction between creating a marker, or pin, and adding the marker to a map. In fact, the map object has a general addOverlay() method, used for both markers and the white information bubbles.

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Beginning Google Maps Applications with Rails and Ajax: From Novice to Professional by Andre Lewis, Cameron Turner, Jeffrey Sambells, Michael Purvis


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