Peter Lubbers - Pro HTML 5 Programming

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CHAPTER 4 ■ USING THE HTML5 GEOLOCATION API
Listing 4-18. Passing a position to the Google Map API
// Create a Google Map… see Google API for more detail
var map = new google.maps.Map(document.getElementById("map"));
function updateLocation(position) {
//pass the position to the Google Map and center it
map.setCenter(new google.maps.LatLng(position.coords.latitude,
position.coords.longitude);
}
navigator.geolocation.getCurrentPosition(updateLocation,
handleLocationError);
Summary
This chapter discussed HTML5 Geolocation. You learned the HTML5 Geolocation location
information—latitude, longitude, and other attributes—and where they can come from. You also
learned about the privacy concerns that accompany HTML5 Geolocation and you’ve seen how the
HTML5 Geolocation APIs can be used to create compelling, location–aware web applications.
In the next chapter, we’ll demonstrate how HTML5 lets you communicate between tabs and
windows as well as between pages and servers with different domains.