Posted on Apr 26, 2017
Google Maps What and How does Google Maps work?

Google Maps What and How does Google Maps work?

Google Maps is a free and online map service provided by Google that can be found at https://maps.google.com. At the site we can see geographical information on almost all regions of the earth. This service is interactive, because in it the map can be shifted to the user’s wishes, change zoom level, and change map appearance. Google maps also offers draggable maps and world-wide images, and offers travel routes.

google maps

How Google Maps Works

It is created using a combination of map images, databases, and interactive objects created with HTML, Javascript, and AJAX programming languages, as well as several other programming languages. The map images appearing on the screen are the result of communication from the user with the database on the google web server to display a composite of the requested pieces of images. All existing imagery is integrated into a database on google server, which will be called as needed. The sections of the map image are a composite of 256 x 256 pixel images. Each 256 x 256 tile represents a certain image in certain longitude, latitude, and zoom levels.

Google Maps API

Google Maps Application Programming Interface (API) is an application feature issued by google to facilitate users who want to integrate it into their respective websites by displaying their own data points. Using the Google Maps API, Google Maps can be embedded on external websites. In order for the it application to appear on certain websites, an API key is required. API key is a unique code generated by google for a particular website, so it server can recognize.

In Google Maps API there are 4 types of map model choices provided by Google, including:

  • Roadmap, to display 2-dimensional regular maps.
  • Satellite, to display satellite photos.
  • Terrain, to show the physical relief of the earth’s surface and show how high a location, for example, will show the mountains and rivers.
  • Hybrid, will show satellite photos above which also illustrated what appears on the roadmap (street and city name).

Google maps also offers draggable maps and world-wide images, and offers travel routes.