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
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Loading BaseMaps with the QuickMapServices plugin


Often, when exploring your data, you may feel somewhat lost. Without the context of the known world, a layer can seem like a blob of information floating in space. By adding an atlas-style map, air photos, or another BaseMap, you can begin to see how your data fits in the on-the-ground reality. However, adding such layers often takes considerable preprocessing work; sometimes, you just don't want to go through this until you know you need it. What's the solution? Use a premade layer, preferably fast-loading tiles, from a web service.

Getting ready

The QuickMapServices plugin works best when you have another dataset that you want to provide extra context for. Start by first loading such a layer and then zooming in to its extent.

You will need the following:

  • A layer of interest to overlay (you can use Davis_DBO_Centerline-wgs84.shp)

  • An active Internet connection (this may not work behind corporate proxies)

  • You will need to install and activate the...