Book Image

QGIS 2 Cookbook

By : Alex Mandel, Víctor Olaya Ferrero, Anita Graser, Alexander Bruy
Book Image

QGIS 2 Cookbook

By: Alex Mandel, Víctor Olaya Ferrero, Anita Graser, Alexander Bruy

Overview of this book

QGIS is a user-friendly, cross-platform desktop geographic information system used to make maps and analyze spatial data. QGIS allows users to understand, question, interpret, and visualize spatial data in many ways that reveal relationships, patterns, and trends in the form of maps. This book is a collection of simple to advanced techniques that are needed in everyday geospatial work, and shows how to accomplish them with QGIS. You will begin by understanding the different types of data management techniques, as well as how data exploration works. You will then learn how to perform classic vector and raster analysis with QGIS, apart from creating time-based visualizations. Finally, you will learn how to create interactive and visually appealing maps with custom cartography. By the end of this book, you will have all the necessary knowledge to handle spatial data management, exploration, and visualization tasks in QGIS.
Table of Contents (19 chapters)
QGIS 2 Cookbook
About the Authors
About the Reviewers

Hooking up web clients

Sometimes, the best way to share a map is to build a website with a map embedded in it. There are many methods to accomplish this goal, ranging from a simple dump of a few layers to a highly-interactive map, which is based on web services. There are many web clients that will work with standard OGC services. This recipe will show you how to build a simple web map using Leaflet—a popular JavaScript library that is used to create web maps.

Getting ready

You will need the qgis2leaf plugin and some sample data. The schools_wake.shp (Points) and census_wake_2000.shp files make for a good example.

How to do it…

  1. Install and enable the qgis2leaf plugin.


    Make sure to check out the qgis2web plugin, which is a newer variant that works similarly but has some different options.

  2. Load up some layers to make a map composition.


    Make a copy of your layer and eliminate unnecessary columns that you don't need to show on the web map. Reducing the size of the attribute table will make it...