Book Image

Google Maps JavaScript API Cookbook

Book Image

Google Maps JavaScript API Cookbook

Overview of this book

Day by day, the use of location data is becoming more and more popular, and Google is one of the main game changers in this area. The Google Maps JavaScript API is one of the most functional and robust mapping APIs used among Geo developers. With Google Maps, you can build location-based apps, maps for mobile apps, visualize geospatial data, and customize your own maps.Google Maps JavaScript API Cookbook is a practical, hands-on guide that provides you with a number of clear, step-by-step recipes that will help you to unleash the capabilities of the Google Maps JavaScript API in conjunction with open source or commercial GIS servers and services through a number of practical examples of real world scenarios. This book begins by covering the essentials of including simple maps for Web and mobile, adding vector and raster layers, styling your own base maps, creating your own controls and responding to events, and including your own events.You will learn how to integrate open source or commercial GIS servers and services including ArcGIS Server, GeoServer, CartoDB, Fusion Tables, and Google Maps Engine with the Google Maps JavaScript API. You will also extend the Google Maps JavaScript API to push its capabilities to the limit with additional libraries and services including geometry, AdSense, geocoding, directions, and StreetView.This book covers everything you need to know about creating a web map or GIS applications using the Google Maps JavaScript API on multiple platforms.
Table of Contents (15 chapters)
Google Maps JavaScript API Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Adding GeoJSON to the Google Maps JavaScript API


XML is the first hero of services in the Web 2.0 zone. With the help of XML, services or machines can easily communicate between them. XML can also be readable by humans. But after browser evolution, JSON has become much more popular due to its native readability for JavaScript and its lightweight compared to XML. GeoJSON is a form of JSON that includes collections of simple features such as points, polylines, or polygons. GeoJSON is not a standard of OGC, but it is a new de facto standard used by most GIS software or services.

The Google Maps JavaScript API does not support GeoJSON natively, but GeoJSON support will be added with a few lines of coding or with some additional libraries. With coding, we will go through the JSON format and read the coordinates one by one. Then, we will show the feature on the map according to its type, which can be point, polyline, or polygon.

In this recipe, we will read GeoJSON from a local file via the jQuery...