Book Image

Mastering OpenLayers 3

By : Gábor Farkas
Book Image

Mastering OpenLayers 3

By: Gábor Farkas

Overview of this book

OpenLayers 3 allows you to create stunning web mapping and WebGIS applications. It uses modern, cutting edge browser technologies. It is written with Closure Library, enabling you to build browser-independent applications without painful debugging ceremonies, which even have some limited fallback options for older browsers. With this guide, you will be introduced to the world of advanced web mapping and WebGIS. First, you will be introduced to the advanced features and functionalities available in OpenLayers 3. Next, you will be taken through the key points of creating custom applications with OpenLayers 3. You will then learn how to create the web mapping application of yours (or your company's) dream with this open source, expense-free, yet very powerful library. We’ll also show you how to make amazing looking thematic maps and create great effects with canvas manipulation. By the end of this book, you will have a strong command of web mapping and will be well on your way to creating amazing applications using OpenLayers 3.
Table of Contents (17 chapters)
Mastering OpenLayers 3
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Before getting started


In the previous chapter, we finalized our sample WebGIS application. That's it; we won't extend it anymore in this chapter or in future chapters. As we later need to create some controls for different operations, we go back to our layer tree model from Chapter 3, Working with Layers. We will use the ch03_layerorder example as our starting point and customize it later according to our needs.

We will not use any third-party library in this chapter; however, we need a large dataset so that we can try out the capabilities of the WebGL renderer. This dataset can be located in the res folder. It's name is switzerland_points_osm.geojson, and it contains 221,291 point features from the OpenStreetMap database.