Book Image

Learning QGIS - Third Edition

By : Anita Graser
Book Image

Learning QGIS - Third Edition

By: Anita Graser

Overview of this book

QGIS is a user-friendly open source geographic information system (GIS) that runs on Linux, Unix, Mac OS X, and Windows. The popularity of open source geographic information systems and QGIS in particular has been growing rapidly over the last few years. Learning QGIS Third Edition is a practical, hands-on guide updated for QGIS 2.14 that provides you with clear, step-by-step exercises to help you apply your GIS knowledge to QGIS. Through clear, practical exercises, this book will introduce you to working with QGIS quickly and painlessly. This book takes you from installing and configuring QGIS to handling spatial data to creating great maps. You will learn how to load and visualize existing spatial data and create data from scratch. You will get to know important plugins, perform common geoprocessing and spatial analysis tasks and automate them with Processing. We will cover how to achieve great cartographic output and print maps. Finally, you will learn how to extend QGIS using Python and even create your own plugin.
Table of Contents (13 chapters)
Learning QGIS Third Edition
About the Author
About the Reviewer

Chapter 4. Spatial Analysis

In this chapter, we will use QGIS to perform many typical geoprocessing and spatial analysis tasks. We will start with raster processing and analysis tasks such as clipping and terrain analysis. We will cover the essentials of converting between raster and vector formats, and then continue with common vector geoprocessing tasks, such as generating heatmaps and calculating area shares within a region. We will also use the Processing modeler to create automated geoprocessing workflows. Finally, we will finish the chapter with examples of how to use the power of spatial databases to analyze spatial data in QGIS.