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 WMS layers to maps


Web Map Service (WMS) is an Open Geospatial Consortium (OGC) standard for publishing georeferenced map images over the Internet that are generated by a map server using data from various geospatial sources such as shapefiles or geospatial databases. There are various versions used in WMS services but the most used ones are 1.1.1 or 1.3.0. WMS has two required request types: GetCapabilities and GetMap.

This recipe shows how to add a WMS layer to the Google Maps JavaScript API by extending the google.maps.OverlayView class.

Getting ready

By now, you should already know how to create a map, so only additional code lines are explained in this recipe.

You can find the source code at Chapter 8/ch08_wms_map.html.

How to do it…

Adding WMS layers to the map is quite easy if you perform the following steps:

  1. First, create a wms.js file to include in the HTML later. This JavaScript file has a WMSUntiled class that is written as follows:

    function WMSUntiled (map, wmsUntiledOptions...