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)

3D view

In QGIS 3, we have the ability to view our data in 3D. To begin, add the Landcover.img raster and then add the SRTM_05_01.tif file that we used in Chapter 4, Creating Great Maps, and Chapter 5, Spatial Analysis, to the map. Now raster as well. Set Landcover as the top layer in the layer panel.

This should look like the following screenshot, with the default styling:

Landcover data in QGIS – default styling

The landcover.img raster has a cell size of 1 km x 1 km, so any 3D results will be coarse because the underlying elevation data has a cell size of 30 m x 30 m. To enable a 3D window, click on View | New 3D Map View, as shown in the following screenshot:

Setting up a 3D Map view

You can dock this new view. I prefer to have it above the map window view, but set it up as best suits you and your screen. The 3D view has five buttons associated with it. They are...