Book Image

Learn QGIS - Fourth Edition

By : Andrew Cutts, Anita Graser
Book Image

Learn QGIS - Fourth Edition

By: Andrew Cutts, Anita Graser

Overview of this book

QGIS 3.4 is the first LTR (long term release) of QGIS version 3. This is a giant leap forward for the project with tons of new features and impactful changes. Learn QGIS is fully updated for QGIS 3.4, covering its processing engine update, Python 3 de-facto coding environment, and the GeoPackage format. This book will help you get started on your QGIS journey, guiding you to develop your own processing pathway. You will explore the user interface, loading your data, editing, and then creating data. QGIS often surprises new users with its mapping capabilities; you will discover how easily you can style and create your first map. But that’s not all! In the final part of the book, you’ll learn about spatial analysis and the powerful tools in QGIS, and conclude by looking at Python processing options. By the end of the book, you will have become proficient in geospatial analysis using QGIS and Python.
Table of Contents (8 chapters)

Spatial Analysis

In this chapter, we will use QGIS to perform many typical spatial analysis tasks. We will start with raster processing, using tools such as clipping and terrain analysis. We will also cover the essentials of converting between raster and vector formats. We will then continue with common vector processing tasks, such as generating heatmaps and calculating area shares within a region. We use the new Processing toolbox as well as the modeler to begin to build automated processing workflows.

Topics covered in this chapter include the following:

  • Processing toolbox
  • Analyzing raster data
  • Converting between raster and vector
  • Raster and vector statistics
  • Heatmap from points
  • Advanced raster and vector processing
  • Batch processing
  • Graphical modeler