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)

Creating a map

So, we have loaded, styled, and labeled our data with the help of the Processing Toolbox. Now, it is finally time to make a map.

To begin, turn on the following layers:

  • Dissolved
  • Lakes
  • Trees
  • Alaska
  • SR_50m_alsaka_nad

Right-click on Dissolved and rename it to Major_Rivers, then right-click on SR_50m_alaska_nad and rename it to Hillshade. Click on Project | New Print Layout (or click the corresponding button on the Project Toolbar). In the Layer Styling panel, change the symbology to renderer to Single Band Psuedo Color and select Viridis as the color ramp.

We are now ready to create a map. In the Create print layout Title dialog box give your new, empty map a title, and click OK. This is demonstrated as follows:

Creating a print layout Title

You will now have an empty canvas on which we will build our first map. It will look like this:

Starting with a blank map...