Book Image

QGIS Quick Start Guide

By : Andrew Cutts
Book Image

QGIS Quick Start Guide

By: Andrew Cutts

Overview of this book

QGIS is a user friendly, open source geographic information system (GIS). The popularity of open source GIS and QGIS, in particular, has been growing rapidly over the last few years. This book is designed to help beginners learn about all the tools required to use QGIS 3.4. This book will provide you with clear, step-by-step instructions to help you apply your GIS knowledge to QGIS. You begin with an overview of QGIS 3.4 and its installation. You will learn how to load existing spatial data and create vector data from scratch. You will then be creating styles and labels for maps. The final two chapters demonstrate the Processing toolbox and include a brief investigation on how to extend QGIS. Throughout this book, we will be using the GeoPackage format, and we will also discuss how QGIS can support many different types of data. Finally, you will learn where to get help and how to become engaged with the GIS community.

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Table of Contents (9 chapters)
Preface
Preface
Who this book is for
What this book covers
To get the most out of this book
Get in touch
Free Chapter
1
Getting Started with QGIS 3
Getting Started with QGIS 3
Installing QGIS
Using QGIS
Summary
2
Loading Data
Loading Data
GIS data
Interacting with the data
Summary
3
Creating Data
Creating Data
Creating data
Creating a GeoPackage
Digitizing data
Raster data
Summary
4
Styling Data
Styling Data
Layer Styling Panel
Styling vector data
Styling raster data
Saving styles
Summary
5
Creating Maps
Creating Maps
Labeling
Making a map in QGIS
Creating an Atlas
Creating a web map
Summary
6
Spatial Processing
Spatial Processing
The Processing Toolbox
Raster analysis
Summary
7
Expanding QGIS 3
Expanding QGIS 3
Model builder
Plugins in QGIS
Using the Python command line
Summary
8
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Digitizing data

In this section, we will create point, line, and polygon data in QGIS. We will create this data in the GeoPackage we have just created.

Creating points

Zoom into Fire Island so that the airport appears. We will now create a point to represent this airport. Make sure that Digitizing Toolbar is visible. You can turn it on by selecting View | Toolbars | Digitizing Toolbar. Digitizing Toolbar is shown in the following screenshot:

Digitizing Toolbar

Make sure that the Fire_Island_Points layer is selected in the Layers panel and click on the Toggle Editing button (yellow pencil) to start an editing session. The digitizing tools are now active in the toolbar, as shown in the following screenshot:

Digitizing tools...
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