Geography Reference
In-Depth Information
Fig. 1 A single marker with a mouseover function that displays “Hello World!” (
2014 Google)
©
level to 17 when the marker is clicked. The initial zoom level is 15. The title text,
“Hello World,” is displayed when the mouse is hovered over the marker.
Bing Maps API
Microsoft
s lead with map tiles and developed its
own API. A marker, called a PushPin, is displayed in Fig.
2
. Like Google
s Bing Maps followed Google
'
'
s initial
API, each of these required the use of an electronic key, an alphanumeric string
within the initial reference to the API. While the key is made freely available, it
limits its use to the server that is specified when the key is requested. The primary
benefit of the key is that it controls access to the API. A user who exceeds the limits
on use, or uses the API for illegal purposes, can easily be denied access.
'
