Hacking Google Maps and Google Earth (ExtremeTech)

Extending the

Google API

Examples

T

he Google API documentation comes with a number of standard

examples that show some of the basics of how the API can be used to

build interactive maps. This chapter takes a closer look at the basic

principles of the Google Maps system and environment in some basic

examples showing the key functionality areas of the API.

Installing a Simple Example

The simplest map example is just to display a map centered on a particular

location. All Google Maps are made up of the HTML of the page that

contains the map and the embedded JavaScript component (supplied by

Google Maps) that actually displays the map on the page.

Listing 7-1 shows a basic Google Maps sample, here centered on Grantham

in Lincolnshire in the U.K.

̨Add controls to

your map

̨Provide tools to

help the user move

about your map

̨Add overlays

and information

windows to

your map

̨Use event listeners

to add functionality

to your map

chapter

in this chapter