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

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

The Google Maps API is still one of many exhibit examples of the net 2.0 improvement paradigm. starting Google Maps functions with Rails and Ajax: From beginner to specialist is the 1st ebook to comprehensively introduce the carrier from a developer point of view, exhibiting you ways you could combine mapping positive aspects into your Rails-driven internet applications.Proceeding some distance past simplistic map demonstrate, you will methods to draw from numerous info resources corresponding to the U.S. Census Bureau's TIGER/Line information and Google's personal geocoding characteristic to construct complete geocoding companies for mapping many destinations round the world.The ebook additionally steers you thru a variety of examples that exhibit how you can inspire consumer interplay reminiscent of via pinpointing map destinations, including reviews, and construction community-driven maps. you want to choose up a replica of this ebook simply because * this is often the 1st publication to comprehensively introduce the Google Maps program improvement utilizing the Rails improvement framework. * you can be brought to the very newest alterations to the Google Maps API, embodied within the model 2 unencumber. * it truly is written by way of 4 builders actively eager about the construction of location-based mapping prone.

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Listing 3-2 shows the complete init() function, with the new lines you should add in bold. Listing 3-2. addOverlay(marker); }); } } Compare this to the marker creation you did in Chapter 2. In Chapter 2, you used new GLatLng() to create the latitude and longitude location for the markers based on data embedded in the page. qxd 2/2/07 9:35 AM Page 41 CHAPTER 3 ■ INTERACTING WITH THE USER AND THE SERVER into the event listener’s handler function. The latlng variable is a GLatLng representation of the latitude and longitude where you clicked on the map.

Qxd 2/2/07 9:32 AM Page 15 CHAPTER 2 ■ GETTING STARTED Google will issue as many keys as you need, but separate domains (or different ports on the same domain) must apply for a separate key. Your first key will be used in your local development environment; so enter http://localhost:3000 as your domain. html (Figure 2-1) and submit the form to get your key. Throughout this book, nearly all of the examples will require you to include this key in the JavaScript