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Learn QGIS

By : Cutts, Anita Graser

2 (1)

Buy this Book

Learn QGIS

2 (1)

By: Cutts, Anita Graser

Buy this Book

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.

Preface

Who this book is for

What this book covers

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Free Chapter

Where Do I Start?

Installing QGIS 3.4

Running QGIS for the first time

What is new in QGIS 3

Introducing the QGIS user interface

Finding help and reporting issues

Summary

Data Creation and Editing

Data formats

Loading data

Interacting with data

Vector data

Raster data

Other data

Summary

Visualizing Data

Styling data

Styling raster layers

Saving styles

Styling vector layers

Summary

Creating Great Maps

Communicating with data

Labeling

Creating a map

Loading data

Summary

Spatial Analysis

Processing toolbox

Analyzing raster data

Combining raster and vector data

Advanced vector and raster analysis with processing

Summary

Extending QGIS with Python

Adding functionality using actions

Getting to know the Python console

Creating custom geoprocessing scripts using Python

Developing your first plugin

3D view

Summary

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Finally, we will take a look at databases and the process of creating data in the new GeoPackage format.

Creating a GeoPackage

At the start of this chapter, we looked at data formats and the GeoPackage format. Remember that, in QGIS 3, the GeoPackage format is the default format. So, let's finish this chapter by creating data in the GeoPackage format:

Create a new GeoPackage layer by clicking Layer | Create Layer | New GeoPackage Layer...:

Create a New GeoPackage Layer

Now fill in the resulting dialog box. Let's create a GeoPackage called My_first_GeoPackage, set the Geometry type as a Point, and add the ID and Name fields.

It should look similar to the following screenshot: