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- Herausgeber: Packt Publishing
- Kategorie: Fachliteratur
- Sprache: Englisch
QGIS is a user friendly open source geographic information system (GIS) that runs on Linux, Unix, Mac OSX, and Windows. The popularity of open source geographic information systems and QGIS in particular has been growing rapidly over the last few years. More and more companies and institutions are adopting QGIS and even switching to QGIS as their main GIS.
Learning QGIS 2.0 is a practical, hands-on guide that provides you with clear, step-by-step exercises that will help you to apply your GIS knowledge to QGIS. Containing a number of clear, practical exercises, this book will introduce you to working with QGIS, quickly and painlessly. If you want to take advantage of the wide range of functionalities that QGIS offers, then this is the book for you.
This book takes you from installing and configuring QGIS, through handling spatial data to creating great maps. You will learn how to load and visualize existing spatial data and how to create data from scratch. You will perform common geoprocessing and spatial analysis tasks and automate them. We will cover how to achieve great cartographic output and print maps. You will learn everything you need to know to handle spatial data management, processing, and visualization tasks in QGIS.
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Seitenzahl: 111
Veröffentlichungsjahr: 2013
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Table of Contents
Learning QGIS 2.0
Learning QGIS 2.0
Copyright © 2013 Packt Publishing
All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.
Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.
Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.
First published: September 2013
Production Reference: 1100913
Published by Packt Publishing Ltd.
Livery Place
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Birmingham B3 2PB, UK.
ISBN 978-1-78216-748-8
www.packtpub.com
Cover Image by Suresh Mogre (<[email protected]>)
Credits
Author
Anita Graser
Reviewers
Werner Macho
Nathan Woodrow
Acquisition Editor
Kevin Colaco
Commissioning Editor
Sharvari Tawde
Technical Editor
Sonali S. Vernekar
Copy Editors
Aditya Nair
Alfida Paiva
Laxmi Subramanian
Project Coordinator
Esha Thakker
Proofreader
Paul Hindle
Indexer
Priya Subramani
Graphics
Ronak Dhruv
Production Coordinator
Manu Joseph
Cover Work
Manu Joseph
About the Author
Anita Graser studied at FH Wr. Neustadt, Austria, where she graduated with a Master’s degree in Geomatics in 2010. During her studies, she acquired hands-on experience in the fields of geomarketing and transportation research. Since 2007, Anita has been working as a geographic information systems (GIS) expert with the Dynamic Transportation Systems group at the Austrian Institute of Technology, where she focuses on analyzing and visualizing spatio-temporal data and research project management. Anita is an OSGeo Charter member and QGIS team member. She has been working with GIS since 2005, and is writing a popular blog on open source GIS at anitagraser.com.
Special thanks go to Werner Macho and Nathan Woodrow for their valuable feedback and support while writing this book. I would also like to thank my family, partner, and coworkers for their support and encouragement. And of course, I want to thank the whole QGIS team for their continued effort to provide the best open source GIS experience possible.
About the Reviewers
Werner Macho completed his Master’s degree at the University of Natural Resources and Life Sciences, Vienna, Austria. There he spent a long period of time as a scientist working on a range of topics. Currently, he is completing his second Master’s degree in GIS Science at the University of Salzburg, Austria, while working at linfiniti.com in Swellendam, South Africa. Werner has been working with QGIS since 2007, when he searched for an open source GIS tool to aid in his work on floodwater protection plans. In the QGIS Project, he holds the position of Translation Team Leader, managing the translation of more than 45 languages. Werner also banned proprietary stuff from his computer in 1995, and he strongly believes in the power of coding open source and the GPL.
Nathan Woodrow is an open source developer working on the QGIS project, he also maintains a collection of his own personal open source projects. Nathan has been a core developer and an active member of the QGIS community for the last three years. Nathan maintains a QGIS blog at http://nathanw.net which showcases some of the upcoming features in QGIS, as well as tips and tricks for developers and users.
Nathan currently works for Digital Mapping Solutions (DMS) Australia, as a Technical Consultant and QGIS Specialist. At DMS Nathan provides support, training, custom development, and bug fixing for QGIS.
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Preface
Welcome to Learning QGIS 2.0. This book aims to introduce you to QGIS 2 and how to perform core geospatial tasks using this popular open source GIS. It takes you through five chapters, from QGIS installation and setup in the first chapter, to the essentials of viewing spatial data in the second chapter. The third chapter covers data creation and editing, followed by the fourth chapter, which offers an introduction to performing spatial analysis in QGIS. In the final chapter, you will learn how to create great maps and how to prepare them for print.
What this book covers
Chapter 1, Getting Started with QGIS, covers the installation and configuration of QGIS. We will also get to know the user interface and how to customize it. By the end of this chapter, you will have QGIS running on your machine and be ready to start with the tutorials.
Chapter 2, Viewing Spatial Data, covers how to view spatial data from different data sources. QGIS supports many file and database formats as well as OGC web services. We will first see how we can load layers from these different data sources. Then, we will look into the basics of styling both vector and raster layers and will create our first map. We will finish this chapter with an example for loading background maps from online services.
Chapter 3, Data Creation and Editing, covers the creation of new vector layers. Then, we will cover how to select features and take measurements before we continue with editing feature geometries and attributes. We will then reproject vector and raster data and learn how to convert between different file formats before we end this chapter with joining data from text files and spreadsheets to our spatial data.
Chapter 4, Spatial Analysis, covers raster processing and analysis tasks such as clipping and terrain analysis. Then, we cover converting between raster and vector formats before we continue with common vector geoprocessing tasks such as generating heatmaps and calculating area shares within a region. Finally, we will finish the chapter with an exercise in automating a geoprocessing workflow using the QGIS Processing modeler.
Chapter 5, Creating Great Maps, covers important features that enable us to create great maps. We will go into advanced vector styling, building on what we learned in Chapter 2, Viewing Spatial Data. Then, we will cover labeling using examples of labeling point locations as well as creating more advanced road labels with road shield graphics. We will also cover how to tweak labels manually. Finally, we will get to know the print composer and how to use it to create printable maps and map books.
Who this book is for
This book is for users, developers, and consultants who know the basic functions and processes of GIS, but want to know how to use QGIS to achieve the results they are used to from other GIS. This book is not intended to be a GIS textbook. The reader is expected to be comfortable with core GIS concepts.
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Chapter 1. Getting Started with QGIS
In this chapter, we will install and configure the QGIS geographic information system. We will also get to know the user interface and how to customize it. By the end of this chapter, you will have QGIS running on your machine and be ready to start with the tutorials.
